MarineMax (HZO) 10-K17 Nov 232023 FY Annual reportFinancial data

Company Profile

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
Document and Entity Information - USD ($)	Sep. 30, 2023	Nov. 13, 2023	Mar. 31, 2023
Cover [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Sep. 30, 2023
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	FY
Trading Symbol	HZO
Entity Registrant Name	MarineMax, Inc.
Entity Central Index Key	0001057060
Current Fiscal Year End Date	--09-30
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Security Exchange Name	NYSE
Title of 12(b) Security	Common Stock, par value $.001 per share
Entity Interactive Data Current	Yes
Entity File Number	1-14173
Entity Incorporation, State or Country Code	FL
Entity Tax Identification Number	59-3496957
Entity Address, Address Line One	2600 McCormick Drive
Entity Address, Address Line Two	Suite 200,
Entity Address, City or Town	Clearwater
Entity Address, State or Province	FL
Entity Address, Postal Zip Code	33759
City Area Code	727
Local Phone Number	531-1700
Document Annual Report	true
Document Transition Report	false
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction [Flag]	false
Entity Common Stock, Shares Outstanding		22,171,141
Entity Public Float			$ 607,903,599
Documents Incorporated by Reference	Documents Incorporated by Reference Portions of the registrant’s definitive proxy statement for the 2024 Annual Meeting of Shareholders are incorporated by reference into Part III of this report.
Auditor Name	KPMG LLP
Auditor Firm ID	185
Auditor Location	Tampa, Florida

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2023	Sep. 30, 2022
CURRENT ASSETS:
Cash and cash equivalents	$ 201,456	$ 228,274
Accounts receivable, net	85,780	50,287
Inventories	812,830	454,359
Prepaid expenses and other current assets	23,110	21,077
Total current assets	1,123,176	753,997
Property and equipment, net	527,552	246,011
Operating lease right-of-use assets, net	138,785	96,837
Goodwill	559,820	235,585
Other intangible assets, net	39,713	10,886
Other long-term assets	32,259	9,455
Total assets	2,421,305	1,352,771
CURRENT LIABILITIES:
Accounts payable	71,706	34,342
Contract liabilities (customer deposits)	81,700	144,427
Accrued expenses	112,746	89,402
Short-term borrowings (Floor Plan)	537,060	132,026
Current maturities on long-term debt	33,767	2,882
Current operating lease liabilities	10,070	9,693
Total current liabilities	847,049	412,772
Long-term debt, net of current maturities	389,231	45,301
Noncurrent operating lease liabilities	123,789	89,657
Deferred tax liabilities, net	56,927	15,401
Other long-term liabilities	85,892	6,974
Total liabilities	1,502,888	570,105
COMMITMENTS AND CONTINGENCIES (Note 19)
SHAREHOLDERS’ EQUITY:
Preferred stock, $.001 par value, 1,000,000 shares authorized, none issued or outstanding as of September 30, 2022 and 2023
Common stock, $.001 par value; 40,000,000 shares authorized, 28,939,846 and 29,374,724 shares issued and 21,672,825 and 22,107,703 shares outstanding as of September 30, 2022 and 2023, respectively	29	29
Additional paid-in capital	323,218	303,432
Accumulated other comprehensive (loss) income	1,303	(2,806)
Retained earnings	739,949	630,667
Treasury stock, at cost, 7,267,021 shares held as of September 30, 2022 and 2023	(148,656)	(148,656)
Total shareholders' equity attributable to MarineMax, Inc.	915,843	782,666
Non-controlling interests	2,574	0
Total shareholders' equity	918,417	782,666
Total liabilities and shareholders’ equity	$ 2,421,305	$ 1,352,771

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Sep. 30, 2023	Sep. 30, 2022
Statement of Financial Position [Abstract]
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	40,000,000	40,000,000
Common stock, shares issued	29,374,724	28,939,846
Common stock, shares outstanding	22,107,703	21,672,825
Treasury stock, shares	7,267,021	7,267,021

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
Revenue	$ 2,394,706	$ 2,308,098	$ 2,063,257
Cost of sales	1,559,377	1,502,344	1,403,824
Gross profit	835,329	805,754	659,433
Selling, general and administrative expenses	634,527	540,550	449,974
Income from operations	200,802	265,204	209,459
Interest expense	53,367	3,283	3,665
Income before income tax provision	147,435	261,921	205,794
Income tax provision	37,957	63,932	50,815
Net income	109,478	197,989	154,979
Less: Net income attributable to non-controlling interests	196
Net income attributable to MarineMax, Inc.	$ 109,282	$ 197,989	$ 154,979
Basic net income per common share	$ 5	$ 9.12	$ 7.04
Diluted net income per common share	$ 4.87	$ 8.84	$ 6.78
Weighted average number of common shares used in computing net income per common share:
Basic	21,852,425	21,706,225	22,010,130
Diluted	22,429,381	22,399,209	22,859,498

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 109,478	$ 197,989	$ 154,979
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustments	4,377	(4,476)	(300)
Interest rate swap contract	(98)	1,022	119
Total other comprehensive (loss) income, net of tax	4,279	(3,454)	(181)
Comprehensive income	113,757	194,535	154,798
Less: comprehensive income attributable to non-controlling interests	366
Comprehensive income attributable to MarineMax, Inc.	$ 113,391	$ 194,535	$ 154,798

CONSOLIDATED STATEMENTS OF STOC

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock Issued [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Non-controlling Interests [Member]
Beginning Balance at Sep. 30, 2020	$ 455,397	$ 28	$ 280,436	$ 829	$ 277,699	$ (103,595)
Beginning Balance, Shares at Sep. 30, 2020		28,130,312
Net income	154,979				154,979
Purchase of treasury stock	(23,769)					(23,769)
Shares issued pursuant to employee stock purchase plan	1,578		1,578
Shares issued pursuant to employee stock purchase plan, Shares		121,984
Shares issued upon vesting of equity awards, net of minimum tax withholding	(3,909)	$ 1	(3,910)
Shares issued upon vesting of equity awards, net of minimum tax withholding, Shares		254,521
Shares issued upon exercise of stock options	1,048		1,048
Shares issued upon exercise of stock options, Shares		77,079
Stock-based compensation	9,749		9,749
Stock-based compensation, Shares		4,967
Other comprehensive income (loss)	(181)			(181)
Ending Balance at Sep. 30, 2021	594,892	$ 29	288,901	648	432,678	(127,364)
Ending Balance, Shares at Sep. 30, 2021		28,588,863
Net income	197,989				197,989
Purchase of treasury stock	(21,292)					(21,292)
Shares issued pursuant to employee stock purchase plan	1,945		1,945
Shares issued pursuant to employee stock purchase plan, Shares		52,232
Shares issued upon vesting of equity awards, net of minimum tax withholding	(3,681)		(3,681)
Shares issued upon vesting of equity awards, net of minimum tax withholding, Shares		262,449
Shares issued upon exercise of stock options	254		254
Shares issued upon exercise of stock options, Shares		32,500
Stock-based compensation	16,013		16,013
Stock-based compensation, Shares		3,802
Other comprehensive income (loss)	(3,454)			(3,454)
Ending Balance at Sep. 30, 2022	$ 782,666	$ 29	303,432	(2,806)	630,667	(148,656)
Ending Balance, Shares at Sep. 30, 2022	28,939,846	28,939,846
Net income	$ 109,478				109,282		$ 196
Non-controlling interests in subsidiaries from acquisitions	2,208						2,208
Shares issued pursuant to employee stock purchase plan	2,346		2,346
Shares issued pursuant to employee stock purchase plan, Shares		92,900
Shares issued upon vesting of equity awards, net of minimum tax withholding	(4,224)		(4,224)
Shares issued upon vesting of equity awards, net of minimum tax withholding, Shares		331,431
Shares issued upon exercise of stock options	7		7
Shares issued upon exercise of stock options, Shares		3,000
Stock-based compensation	21,657		21,657
Stock-based compensation, Shares		7,547
Other comprehensive income (loss)	4,279			4,109			170
Ending Balance at Sep. 30, 2023	$ 918,417	$ 29	$ 323,218	$ 1,303	$ 739,949	$ (148,656)	$ 2,574
Ending Balance, Shares at Sep. 30, 2023	29,374,724	29,374,724

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 109,478	$ 197,989	$ 154,979
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	41,032	19,418	15,606
Deferred income tax provision, net of effects of acquisitions	23,059	2,149	4,759
Loss (gain) from hurricane	(933)	4,800
Gain on sale of property and equipment	(354)	(108)
Gain on previously held equity investment upon acquisition of the entire business	(5,129)
Proceeds from insurance settlements			941
Stock-based compensation expense	21,657	16,013	9,749
(Increase) decrease in, net of effects of acquisitions —
Accounts receivable, net	(30,977)	(563)	(627)
Inventories	(351,753)	(198,018)	139,833
Prepaid expenses and other assets	254	(4,259)	(1,862)
(Decrease) increase in, net of effects of acquisitions —
Accounts payable	24,043	7,358	(16,128)
Contract liabilities (customer deposits)	(65,617)	26,273	60,960
Accrued expenses and other liabilities	13,005	5,543	5,671
Net cash provided by (used in) operating activities	(222,235)	76,595	373,881
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(65,408)	(58,456)	(26,125)
Proceeds from insurance settlements	3,440		1,099
Cash used in acquisition of businesses, net of cash acquired	(516,794)	(83,198)	(134,205)
Proceeds from investments	2,143	2,250
Purchases of investments	(2,486)	(1,750)	(2,250)
Proceeds from sale of property and equipment and assets held for sale	2,740	703	350
Net cash used in investing activities	(576,365)	(140,451)	(161,131)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net borrowings (payments) on short-term borrowings (Floor Plan)	404,708	107,798	(162,655)
Proceeds from long-term debt	400,000		46,375
Payments for long-term debt	(25,272)	(2,902)	(2,404)
Payments for debt issuance costs		(3,145)	(1,081)
Net proceeds from issuance of common stock under incentive compensation, and employee purchase plans	2,353	2,199	2,626
Contingent acquisition consideration payments	(8,340)	(4,950)	(2,640)
Payments on tax withholdings for equity awards	(3,045)	(4,644)	(2,196)
Purchase of treasury stock		(21,292)	(23,769)
Net cash (used in) provided by financing activities	770,404	73,064	(145,744)
Effect of exchange rate changes on cash	1,378	(3,126)	(307)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS:	(26,818)	6,082	66,699
CASH AND CASH EQUIVALENTS, beginning of year	228,274	222,192	155,493
CASH AND CASH EQUIVALENTS, end of year	201,456	228,274	222,192
Cash paid for:
Interest	51,974	2,592	4,452
Income taxes	30,034	64,843	53,356
Non-cash items:
Accrued tax withholdings upon vesting of equity awards	3,082	1,903	2,866
Contingent consideration liabilities from acquisitions	$ 77,380	$ 7,350	$ 10,640

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	12 Months Ended
Pay vs Performance Disclosure - USD ($) $ in Thousands	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Pay vs Performance Disclosure
Net Income (Loss)	$ 109,282	$ 197,989	$ 154,979

Insider Trading Arrangements

Insider Trading Arrangements	12 Months Ended
Insider Trading Arrangements	Sep. 30, 2023
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Company Background and Basis of

Company Background and Basis of Presentation	12 Months Ended
Company Background and Basis of Presentation	Sep. 30, 2023
Accounting Policies [Abstract]
Company Background and Basis of Presentation	1. COMPANY BACKGROUND AND BASIS OF PRESENTATION: We believe we are the world’s largest recreational boat and yacht retailer, selling new and used recreational boats, yachts, and related marine products and services. As of September 30, 2023 , we have 130 locations worldwide, including 79 retail dealership locations, some of which include marinas. Collectively, with the IGY acquisition, as of September 30, 2023 , we own or operate 66 marina and storage locations worldwide. Through Fraser Yachts and Northrop & Johnson, we believe we are the largest superyacht services provider, operating locations across the globe. Cruisers Yachts manufactures boats and yachts with sales through our select retail dealership locations and through independent dealers. Intrepid Powerboats manufactures powerboats and sells through a direct-to-consumer model. MarineMax provides finance and insurance services through wholly owned subsidiaries and operates MarineMax Vacations in Tortola, British Virgin Islands. The Company, through a wholly owned subsidiary New Wave Innovations, also owns Boatyard, an industry-leading customer experience digital product company, and Boatzon, a boat and marine digital retail platform. We are the largest retailer of Sea Ray and Boston Whaler recreational boats which are manufactured by Brunswick Corporation (“Brunswick”). Sales of new Brunswick boats accounted for approximately 24 % of our revenue in fiscal 2023 . Sales of new Sea Ray and Boston Whaler boats, both divisions of Brunswick, accounted for approximately 11 % and 11 %, respectively, of our revenue in fiscal 2023. Brunswick is a world leading manufacturer of marine products and marine engines. We have dealership agreements with Sea Ray, Boston Whaler, Harris, and Mercury Marine, all subsidiaries or divisions of Brunswick. We also have dealer agreements with Italy-based Azimut-Benetti Group’s product line for Azimut and Benetti yachts and mega yachts. These agreements allow us to purchase, stock, sell, and service these manufacturers’ boats and products. These agreements also allow us to use these manufacturers’ names, trade symbols, and intellectual properties in our operations. The agreements for Sea Ray and Boston Whaler products, respectively, appoint us as the exclusive dealer of Sea Ray and Boston Whaler boats, respectively, in our geographic markets. In addition, we are the exclusive dealer for Azimut Yachts for the entire United States. Sales of new Azimut yachts accounted for approximately 11 % of our revenue in fiscal 2023. We believe non-Brunswick brands offer a migration for our existing customer base or fill a void in our product offerings, and accordingly, do not compete with the business generated from our other prominent brands. As is typical in the industry, we deal with most of our manufacturers, other than Sea Ray, Boston Whaler, and Azimut Yachts, under renewable annual dealer agreements, each of which gives us the right to sell various makes and models of boats within a given geographic region. Any change or termination of these agreements, or the agreements discussed above, for any reason, or changes in competitive, regulatory or marketing practices, including rebate or incentive programs, could adversely affect our results of operations. Although there are a limited number of manufacturers of the type of boats and products that we sell, we believe that adequate alternative sources would be available to replace any manufacturer other than Sea Ray, Boston Whaler, and Azimut as a product source. These alternative sources may not be available at the time of any interruption, and alternative products may not be available at comparable terms, which could affect operating results adversely. General economic conditions and consumer spending patterns can negatively impact our operating results. Unfavorable local, regional, national, or global economic developments or uncertainties regarding future economic prospects could reduce consumer spending in the markets we serve and adversely affect our business. Economic conditions in areas in which we operate dealerships, particularly Florida in which we generated approximately 50 %, 51 % and 53 % of our dealership revenue during fiscal 2021, 2022, and 2023, respectively, can have a major impact on our operations. Local influences, such as corporate downsizing, military base closings, inclement weather such as Hurricanes Harvey and Irma in 2017 and Hurricane Ian in 2022, environmental conditions, and specific events, such as the BP oil spill in the Gulf of Mexico in 2010, also could adversely affect, and in certain instances have adversely affected, our operations in certain markets. In an economic downturn, consumer discretionary spending levels generally decline, at times resulting in disproportionately large reductions in the sale of luxury goods. Consumer spending on luxury goods also may decline as a result of lower consumer confidence levels, even if prevailing economic conditions are favorable. As a result, an economic downturn would likely impact us more than certain of our competitors due to our strategic focus on a higher end of our market. Although we have expanded our operations during periods of stagnant or modestly declining industry trends, the cyclical nature of the recreational boating industry or the lack of industry growth may adversely affect our business, financial condition, and results of operations. Any period of adverse economic conditions or low consumer confidence is likely to have a negative effect on our business.

Significant Accounting Policies

Significant Accounting Policies	12 Months Ended
Significant Accounting Policies	Sep. 30, 2023
Accounting Policies [Abstract]
Significant Accounting Policies	2. SIGNIFICANT ACCOUNTING POLICIES: Cash and Cash Equivalents We consider all highly liquid investments with an original maturity of three months or less to be cash equivalents. Vendor Consideration Received We classify interest assistance received from manufacturers as a reduction of inventory cost and related cost of sales. Amounts received by us under our co-op assistance programs from our manufacturers are netted against related advertising expenses. Our consideration received from our vendors contains uncertainties because the calculation requires management to make assumptions and to apply judgment regarding a number of factors, including our ability to collect amounts due from vendors and the ability to meet certain criteria stipulated by our vendors. We do not believe there is a reasonable likelihood that there will be a change in the future estimates or assumptions we use to calculate our vendor considerations which would result in a material effect on our operating results. Inventories Inventories are stated at the lower of cost or net realizable value. The cost of inventories purchased from our vendors consist of the amount paid to acquire the inventory, net of vendor consideration and purchase discounts, the cost of equipment added, reconditioning costs, inventory deposits, and transportation costs relating to acquiring inventory for sale. Trade-in used boats are initially recorded at fair value and adjusted for reconditioning and other costs. The cost of inventories that are manufactured by the Company consist of material, labor, and manufacturing overhead. Unallocated overhead and abnormal costs are expensed as incurred. New and used boats, motors, and trailers inventories are accounted for on a specific identification basis. Raw materials and parts, accessories, and other inventories are accounted for on an average cost basis. We utilize our historical experience, the aging of the inventories, and our consideration of current market trends as the basis for determining a lower of cost or net realizable value. We do not believe there is a reasonable likelihood that there will be a change in the future estimates or assumptions we use to calculate the lower of cost or net realizable value. If events occur and market conditions change, the net realizable value of our inventories could change. Property and Equipment We record property and equipment at cost, net of accumulated depreciation, and depreciate property and equipment over their estimated useful lives using the straight-line method. We capitalize and amortize leasehold improvements over the lesser of the life of the lease or the estimated useful life of the asset. Useful lives for purposes of computing depreciation are as follows: Years Buildings and improvements 5 - 40 Machinery and equipment 3 - 10 Furniture and fixtures 5 - 10 Vehicles 3 - 5 We remove the cost of property and equipment sold or retired and the related accumulated depreciation from the accounts at the time of disposition and include any resulting gain or loss in the accompanying Consolidated Statements of Operations. We charge maintenance, repairs, and minor replacements to operations as incurred, and we capitalize and amortize major replacements and improvements over their useful lives. Goodwill We account for acquisitions in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 805, “Business Combinations” (“ASC 805”), and goodwill in accordance with ASC 350, “Intangibles — Goodwill and Other” (“ASC 350”). For business combinations, the excess of the purchase price over the estimated fair value of net assets acquired in a business combination is recorded as goodwill. In accordance with ASC 350, we test goodwill for impairment at least annually and whenever events or changes in circumstances indicate that the carrying value may not be recoverable. Our annual impairment test is performed during the third fiscal quarter. If the carrying amount of a reporting unit’s goodwill exceeds its fair value we recognize an impairment loss in accordance with ASC 350. Based upon our most recent analysis, we determined through our qualitative assessment that it is not “more likely than not” that the fair values of our reporting units are less than their carrying values. As a result, we were not required to perform a quantitative goodwill impairment test. Impairment of Long-Lived Assets FASB ASC 360-10-40, “Property, Plant, and Equipment — Impairment or Disposal of Long-Lived Assets” (“ASC 360-10-40”), requires that long-lived assets, such as property and equipment and purchased intangibles subject to amortization, be reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of the asset (or asset group) is measured by comparison of its carrying amount to undiscounted future net cash flows the asset (or asset group) is expected to generate over the remaining life of the asset (or asset group). If such assets are considered to be impaired, the impairment to be recognized is measured as the amount by which the carrying amount of the asset (or asset group) exceeds its fair market value. Estimates of expected future cash flows represent our best estimate based on currently available information and reasonable and supportable assumptions. Our impairment loss calculations contain uncertainties because they require us to make assumptions and to apply judgment in order to estimate expected future cash flows. Any impairment recognized in accordance with ASC 360-10-40 is permanent and may not be restored. Based upon our most recent analysis, we believe no impairment of long-lived assets existed as of September 30, 2023 . Insurance We retain varying levels of risk relating to the insurance policies we maintain, most significantly, workers’ compensation insurance and employee medical benefits. We are responsible for the claims and losses incurred under these programs, limited by per occurrence deductibles and paid claims or losses up to pre-determined maximum exposure limits. Our third-party insurance carriers pay any losses above the pre-determined exposure limits. We estimate our liability for incurred but not reported losses using our historical loss experience, our judgment, and industry information. Revenue Recognition The majority of our revenue is from contracts with customers for the sale of boats, motors, and trailers. We recognize revenue from boat, motor, and trailer sales upon transfer of control of the boat, motor, or trailer to the customer, which is generally upon acceptance of the boat, motor, and trailer by the customer and the satisfaction of our performance obligations. The transaction price is determined with the customer at the time of sale. Customers may trade in a used boat to apply toward the purchase of a new or used boat. The trade-in is a type of noncash consideration measured at fair value, based on external and internal observable and unobservable market data and applied as payment to the contract price for the purchased boat. At the time of acceptance, the customer is able to direct the use of, and obtain substantially all of the benefits of the boat, motor, or trailer. We recognize commissions earned from a brokerage sale when the related brokerage transaction closes upon transfer of control of the boat, motor, or trailer to the customer, which is generally upon acceptance by the customer. We do not directly finance our customers’ boat, motor, or trailer purchases. In many cases, we assist with third-party financing for boat, motor, and trailer sales. We recognize commissions earned by us for placing notes with financial institutions in connection with customer boat financing when we recognize the related boat sales. Pursuant to negotiated agreements with financial institutions, we are charged back for a portion of these fees should the customer terminate or default on the related finance contract before it is outstanding for a stipulated minimum period of time. We base the chargeback allowance, which was not material to the consolidated financial statements taken as a whole as of September 30, 2022 and 2023, on our experience with repayments or defaults on the related finance contracts. We recognize variable consideration from commissions earned on extended warranty service contracts sold on behalf of third-party insurance companies at generally the later of customer acceptance of the service contract terms as evidenced by contract execution or recognition of the related boat sale. We also recognize marketing fees earned on insurance products sold on behalf of third-party insurance companies at the later of customer acceptance of the insurance product as evidenced by contract execution or when the related boat sale is recognized. We recognize revenue from parts and service operations (boat maintenance and repairs) over time as services are performed. Each boat maintenance and repair service is a single performance obligation that includes both the parts and labor associated with the service. Payment for boat maintenance and repairs is typically due upon the completion of the service, which is generally completed within a short period of time from contract inception. We satisfy our performance obligations, transfer control, and recognize revenue over time for parts and service operations because we are creating a contract asset with no alternative use and we have an enforceable right to payment for performance completed to date. Contract assets primarily relate to our right to consideration for work in process not yet billed at the reporting date associated with maintenance and repair services. We use an input method to recognize revenue and measure progress based on labor hours expended to satisfy the performance obligation at average labor rates. We have determined labor hours expended to be the relevant measure of work performed to complete the maintenance and repair service for the customer. As a practical expedient, because repair and maintenance service contracts have an original duration of one year or less, we do not consider the time value of money, and we do not disclose estimated revenue expected to be recognized in the future for performance obligations that are unsatisfied (or partially unsatisfied) at the end of the reporting period or when we expect to recognize such revenue. Contract assets, recorded in prepaid expenses and other current assets, totaled approximately $ 5.9 million and $ 5.3 million as of September 30, 2022 and September 30, 2023, respectively. We recognize revenue from the sale of our manufactured boats and yachts when control of the boat or yacht is transferred to the dealer or customer which is generally upon acceptance by the dealer or customer. At the time of acceptance, the dealer or customer is able to direct the use of, and obtain substantially all of the benefits of the boat or yacht. We have elected to record shipping and handling activities that occur after the dealer or customer has obtained control of the boat or yacht as a fulfillment activity. We recognize lessor common area charges, utility sales, food and beverage sales and other ancillary goods and services. Performance obligations include performing common area maintenance and providing utilities, food and beverages, and other ancillary goods and services when goods are transferred or services are performed. Payment terms typically align with when the goods and services are provided. Contract liabilities primarily consist of customer deposits. We recognize contract liabilities (customer deposits) as revenue at the time of acceptance and the transfer of control to the customers. Total contract liabilities of approximately $ 94.9 million recorded as of September 30, 2021 were recognized in revenue during the fiscal year ended September 30, 2022 . Total contract liabilities of approximately $ 126.1 million recorded as of September 30, 2022 were recognized in revenue during the fiscal year ended September 30, 2023. We recognize revenue from service operations and slip and storage rentals over time on a straight-line basis over the term of the contract as our performance obligations are met. We recognize revenue from the rentals of chartering power yachts over time on a straight-line basis over the term of the contract as our performance obligations are met. The following table sets forth percentages on the timing of revenue recognition by reportable segment for the fiscal years ended September 30, Retail Operations Product Manufacturing 2021 2022 2023 2021 2022 2023 Goods and services transferred at a point in time 91.6 % 90.9 % 87.2 % 100.0 % 100.0 % 100.0 % Goods and services transferred over time 8.4 % 9.1 % 12.8 % — — — Revenue 100.0 % 100.0 % 100.0 % 100.0 % 100.0 % 100.0 % The following tables set forth our revenue disaggregated into categories that depict the nature, amount, timing, and uncertainty of revenue and cash flows affected by economic factors for the fiscal years ended September 30, 2023 Retail Operations Product Manufacturing Total New boat sales 67.3 % 95.8 % 68.7 % Used boat sales 8.3 % 2.8 % 7.9 % Maintenance and repair services 4.6 % — 4.4 % Storage and charter rentals 7.1 % — 6.7 % Finance and insurance products 2.9 % — 2.8 % Parts and accessories 4.9 % 0.8 % 4.7 % Brokerage sales 4.9 % 0.6 % 4.8 % Revenue 100.0 % 100.0 % 100.0 % 2022 Retail Operations Product Manufacturing Total New boat sales 71.9 % 95.0 % 73.2 % Used boat sales 7.7 % 3.8 % 7.3 % Maintenance and repair services 4.7 % — 4.1 % Storage and charter rentals 3.0 % — 3.3 % Finance and insurance products 3.1 % — 3.0 % Parts and accessories 3.5 % 0.7 % 3.3 % Brokerage sales 6.1 % 0.5 % 5.8 % Revenue 100.0 % 100.0 % 100.0 % 2021 Retail Operations Product Manufacturing Total New boat sales 70.3 % 98.8 % 70.5 % Used boat sales 11.0 % — 10.9 % Maintenance and repair services 4.1 % — 4.1 % Storage and charter rentals 3.0 % — 3.0 % Finance and insurance products 2.7 % — 2.7 % Parts and accessories 3.2 % 1.2 % 3.2 % Brokerage sales 5.7 % — 5.6 % Revenue 100.0 % 100.0 % 100.0 % The following table sets forth our maintenance, repair, storage, rental, charter services and parts and accessories revenue for our Retail Operations by location type. 2021 2022 2023 (Amounts in thousands) Marina/storage locations $ 127,558 $ 143,189 $ 265,847 Locations without marina/storage 82,934 103,102 114,353 Maintenance, repair, storage, rental, charter services, parts and accessories revenue $ 210,492 $ 246,291 $ 380,200 Cost of Sales Cost of sales primarily includes cost of products sold, transportation costs from manufacturers to our retail stores, and vendor consideration. Cost of sales includes depreciation of property and equipment from our product manufacturing segment (manufacturing overhead). Selling, General, and Administrative expenses Selling, general, and administrative expenses primarily include salaries and incentive-based compensation, sales commissions, brokerage commissions, advertising, insurance, utilities, depreciation and amortization, and other customary operating expenses. Stock-Based Compensation We account for our stock-based compensation plans following the provisions of FASB ASC 718, “Compensation — Stock Compensation” (“ASC 718”). In accordance with ASC 718, we use the Black-Scholes valuation model for estimating the fair value of stock option grants and shares purchased under our Employee Stock Purchase Plan. We measure compensation for restricted stock awards and restricted stock units at fair value on the grant date based on the number of shares expected to vest and the quoted market price of our common stock on the grant date. We recognize compensation cost for all awards in operations, net of estimated forfeitures, on a straight-line basis over the requisite service period for each separately vesting portion of the award. Foreign Currency Transactions For the Company’s foreign subsidiaries that use a currency other than the U.S. dollar as their functional currency, the assets and liabilities are translated at exchange rates in effect at the balance sheet date, and revenues and expenses are translated at the weighted average exchange rate for the period. The effects of these translation adjustments are reported in accumulated other comprehensive income. Gains and losses arising from transactions denominated in a currency other than the functional currency of the entity involved are included in operating income. No amounts were reclassified out of accumulated other comprehensive income in fiscal 2023 . Advertising and Promotional Cost We expense advertising and promotional costs as incurred and include them in selling, general and administrative expenses in the accompanying Consolidated Statements of Operations. We net amounts received by us under our co-op assistance programs from our manufacturers against the related advertising expenses. Total advertising and promotional expenses approximated $ 14.8 million, $ 25.8 million and $ 36.0 million, net of related co-op assistance, which was not material to the consolidated financial statements, for the fiscal years ended September 30, 2021, 2022, and 2023 , respectively. Income Taxes We account for income taxes in accordance with FASB ASC 740, “Income Taxes” (“ASC 740”). Under ASC 740, we recognize deferred tax assets and liabilities for the future tax consequences attributable to temporary differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. We measure deferred tax assets and liabilities using enacted tax rates expected to apply to taxable income in the years in which we expect those temporary differences to be recovered or settled. We record valuation allowances to reduce our deferred tax assets to the amount expected to be realized by considering all available positive and negative evidence. Concentrations of Credit Risk Financial instruments, which potentially subject us to concentrations of credit risk, consist principally of cash and cash equivalents and accounts receivable. Concentrations of credit risk with respect to our cash and cash equivalents are limited primarily to amounts held with financial institutions. Concentrations of credit risk arising from our receivables are limited primarily to amounts due from manufacturers and financial institutions. Use of Estimates and Assumptions The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting periods. Significant estimates made by us in the accompanying consolidated financial statements include valuation allowances, valuation of goodwill and intangible assets, valuation of long-lived assets, and valuation of contingent consideration liabilities. Actual results could differ materially from those estimates. Segment Reporting Effective May 2, 2021, our reportable segments changed as a result of the Company’s acquisition of Cruisers Yachts, which changed management’s reporting structure and operating activities. We now report our operations through two reportable segments: Retail Operations and Product Manufacturing. The change in reportable segments had no impact on the Company’s previously reported historical consolidated financial statements. Where applicable, all prior periods presented have been revised to conform to the change in reportable segments. See Note 21.

Fair Value Measurements

Fair Value Measurements	12 Months Ended
Fair Value Measurements	Sep. 30, 2023
Fair Value Disclosures [Abstract]
Fair Value Measurements	4. FAIR VALUE MEASUREMENTS: The Company uses valuation approaches that maximize the use of observable inputs and minimize the use of unobservable inputs to the extent possible. The Company determines fair value based on assumptions that market participants would use in pricing an asset or liability in the principal or most advantageous market. When considering market participant assumptions in fair value measurements, the following fair value hierarchy distinguishes between observable and unobservable inputs, which are categorized in one of the following levels: Level 1 - Unadjusted quoted prices in active markets for identical assets or liabilities accessible to the reporting entity at the measurement date. Level 2 - Other than quoted prices included in Level 1 inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the asset or liability. Level 3 - Unobservable inputs for the asset or liability used to measure fair value to the extent that observable inputs are not available, thereby allowing for situations in which there is little, if any, market activity for the asset or liability at measurement date. The following tables summarize the Company’s financial assets and liabilities measured at fair value in the accompanying Consolidated Balance Sheets as of September 30, 2023 Level 1 Level 2 Level 3 Total (Amounts in thousands) Assets: Interest rate swap contract $ — $ 1,409 $ — $ 1,409 Liabilities: Contingent consideration liabilities $ — $ — $ 86,059 $ 86,059 2022 Level 1 Level 2 Level 3 Total (Amounts in thousands) Assets: Interest rate swap contract $ — $ 1,528 $ — $ 1,528 Liabilities: Contingent consideration liabilities $ — $ — $ 15,207 $ 15,207 There were no transfers between the valuation hierarchy Levels 1, 2, and 3 for the fiscal years ended September 30, 2022, and 2023. The fair value of the Company’s interest rate swap contract is calculated as the present value of expected future cash flows, determined on the basis of forward interest rates and present value factors. The inputs to the fair value measurements reflect Level 2 inputs. The interest rate swap contract balance is included in other long-term assets in the accompanying Consolidated Balance Sheets. The interest rate swap contract is designated as a cash flow hedge with changes in fair value reported in other comprehensive income in the accompanying Consolidated Statements of Comprehensive Income. The fair value of the Company's contingent consideration liabilities is based on the present value of the expected future payments to be made to the sellers of the acquired entities in accordance with the provisions outlined in the respective purchase agreements, which is a Level 3 fair value measurement. In determining fair value, we estimated the acquired entity’s future performance using financial projections developed by management for the acquired entity and market participant assumptions that were derived for revenue growth and/or profitability. We estimated future payments using the earnout formula and performance targets specified in each purchase agreement and the financial projections just described. The risk associated with the financial projections was evaluated using a Monte Carlo simulation analysis, pursuant to which the projections were discounted to present value using a discount rate that takes into consideration market-based rates of return, and then simulated to reflect the ability of the acquired entity to achieve the earnout targets. Such calculated earnout payments were further discounted at our estimated cost of debt, to account for counterparty risk. We note that changes in financial projections, market participant assumptions for revenue growth and/or profitability, or market risk factors, would result in a change in the fair value of recorded earnout obligations. The following table summarizes ranges for significant quantitative unobservable inputs we utilized in our fair value measurements with respect to contingent consideration liabilities: Unobservable Input: September 30, 2023 Earnout projected growth (including net operating income) 23 % - 25 % Discount rate 11.0 % The contingent consideration liabilities balance is included in accrued expenses and other long-term liabilities in the accompanying Consolidated Balance Sheets. Contingent consideration liabilities, recorded in other long-term liabilities, totaled approximately $ 6.4 million and $ 80.7 million as of September 30, 2022 and September 30, 2023, respectively. Changes in fair value and net present value of the contingent consideration liabilities are included in selling, general, and administrative expenses in the accompanying Consolidated Statements of Operations. The following table sets forth the changes in fair value of our contingent consideration liabilities, which reflect Level 3 inputs, for the fiscal the years ended September 30, 2022 and 2023: Contingent Consideration Liabilities (Amounts in thousands) Balance as of September 30, 2021 $ 12,364 Additions from business acquisitions 7,350 Settlement of contingent consideration liabilities ( 5,500 ) Change in fair value and net present value of contingency 993 Balance as of September 30, 2022 $ 15,207 Additions from business acquisitions 77,380 Settlement of contingent consideration liabilities ( 8,900 ) Change in fair value and net present value of contingency 2,372 Balance as of September 30, 2023 $ 86,059 We determined the carrying value of cash and cash equivalents, accounts receivable, accounts payable, accrued expenses, short-term borrowings, and the revolving mortgage facility approximate their fair values because of the nature of their terms and current market rates of these instruments. The fair value of our mortgage facilities and term loan, which are not carried at fair value in the accompanying Consolidated Balance Sheets, was determined using Level 2 inputs based on the discounted cash flow method. We estimate the fair value of our mortgage facilities using a present value technique based on current market interest rates for similar types of financial instruments that reflect Level 2 inputs. The following table summarizes the carrying value and fair value of our mortgage facilities and term loan as of September 30, 2022 2023 Fair Value Carrying Value Fair Value Carrying Value (Amounts in thousands) Mortgage facility payable to Flagship Bank $ 6,355 $ 6,403 $ 6,027 $ 5,907 Mortgage facility payable to Seacoast National Bank 16,681 17,098 17,223 16,735 Mortgage facility payable to Hancock Whitney Bank 24,977 25,192 24,171 23,279 Term loan payable to M&T Bank — — 379,650 377,500

Accounts Receivable

Accounts Receivable	12 Months Ended
Accounts Receivable	Sep. 30, 2023
Receivables [Abstract]
Accounts Receivable	5. ACCOUNTS RECEIVABLE: Trade receivables consist primarily of receivables from financial institutions, which provide funding for customer boat financing and amounts due from financial institutions earned from arranging financing with our customers. We normally collect these receivables within 30 days of the sale. Trade receivables also include amounts due from customers on the sale of boats, parts, service, and storage. Amounts due from manufacturers represent receivables for various manufacturer programs and parts and service work performed pursuant to the manufacturers’ warranties. Accounts receivable are presented net of an allowance for expected credit losses. The allowance for expected credit losses, which was not material to the consolidated financial statements as of September 30, 2022 or 2023, was based on our consideration of past collection experience, current information, and reasonable and supportable forecasts. Accounts receivable, net consisted of the following as of September 30, 2022 2023 (Amounts in thousands) Trade receivables, net $ 41,215 $ 70,752 Amounts due from manufacturers 7,826 13,555 Other receivables 1,246 1,473 Accounts receivable, net $ 50,287 $ 85,780

Inventories

Inventories	12 Months Ended
Inventories	Sep. 30, 2023
Inventory Disclosure [Abstract]
Inventories	6. INVENTORIES: Inventories consisted of the following as of September 30, 2022 2023 (Amounts in thousands) New and used boats, motors, and trailers $ 272,422 $ 625,287 In transit inventory and deposits 117,268 115,879 Parts, accessories, and other 17,143 18,712 Work-in-process 21,691 22,340 Raw materials 25,835 30,612 Inventories $ 454,359 $ 812,830

Property and Equipment

Property and Equipment	12 Months Ended
Property and Equipment	Sep. 30, 2023
Property Plant And Equipment [Abstract]
Property and Equipment	7. PROPERTY AND EQUIPMENT: Property and equipment, net consisted of the following as of September 30, 2022 2023 (Amounts in thousands) Land $ 80,312 $ 124,605 Buildings and improvements 179,162 413,688 Machinery and equipment 70,445 100,517 Furniture and fixtures 6,523 8,153 Vehicles 20,843 24,848 Gross property and equipment 357,285 671,811 Less: accumulated depreciation and amortization ( 111,274 ) ( 144,259 ) Property and equipment, net $ 246,011 $ 527,552 Depreciation expense on property and equipment, which includes amounts allocated to cost of sales, totaled approximately $ 13.9 million, $ 16.7 million, and $ 32.3 million, for the fiscal years ended September 30, 2021, 2022, and 2023 , respectively.

Leases

Leases	12 Months Ended
Leases	Sep. 30, 2023
Leases [Abstract]
Leases	8. LEASES: Lessee Substantially all of the leases that we enter into are real estate leases. We lease numerous facilities relating to our operations, including showrooms, display lots, marinas, service facilities, slips, offices, equipment and our corporate headquarters. Leases for real property have terms, including renewal options, ranging from one to in excess of twenty-five years . In addition, we lease certain charter boats for our yacht charter business. As of September 30, 2023 , the weighted-average remaining lease term for our leases was approximately 21 years. All of our leases are classified as operating leases, which are included as right-of-use ("ROU") assets and operating lease liabilities in the accompanying Consolidated Balance Sheets. For the fiscal years ended September 30, 2021, 2022, and 2023 , operating lease expenses recorded in selling, general, and administrative expenses were approximately $ 24.1 million, $ 23.5 million, and $ 30.4 million, of which approximately $ 0.7 million, $ 0.6 million, and $ 0.7 million, related to variable lease expenses, respectively. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants. We do not have any significant leases that have not yet commenced but that create significant rights and obligations for us. We have elected the practical expedient under ASC Topic 842 to not separate lease and nonlease components. Our real estate and equipment leases often require that we pay maintenance in addition to rent. Additionally, our real estate leases generally require payment of real estate taxes and insurance. Maintenance, real estate taxes, and insurance payments are generally variable and based on actual costs incurred by the lessor. Therefore, these amounts are not included in the consideration of the contract when determining the ROU asset and lease liability, but are reflected as variable lease expenses. Substantially all of our lease agreements include fixed rental payments. Certain of our lease agreements include fixed rental payments that are adjusted periodically by a fixed rate or changes in an index. The fixed payments, including the effects of changes in the fixed rate or amount, and renewal options reasonably certain to be exercised, are included in the measurement of the related lease liability. Most of our real estate leases include one or more options to renew, with renewal terms that can extend the lease term from one to five years or more. The exercise of lease renewal options is at our sole discretion. If it is reasonably certain that we will exercise such options, the periods covered by such options are included in the lease term and are recognized as part of our right of use assets and lease liabilities. The depreciable life of assets and leasehold improvements are limited by the expected lease term, which includes renewal options reasonably certain to be exercised . For our incremental borrowing rate, we generally use a portfolio approach to determine the discount rate for leases with similar characteristics . We determine discount rates based upon our hypothetical credit rating, taking into consideration our short-term borrowing rates, and then adjusting as necessary for the appropriate lease term. As of September 30, 2023 , the weighted-average discount rate used was approximately 6.4 %. As of September 30, 2023, maturities of lease liabilities by fiscal year are summarized as follows: (Amounts in thousands) 2024 $ 16,182 2025 15,997 2026 14,603 2027 14,061 2028 13,223 Thereafter 261,258 Total lease payments 335,324 Less: interest ( 201,465 ) Present value of lease liabilities $ 133,859 The following table sets forth supplemental cash flow information related to leases for the fiscal years ended September 30, 2021 2022 2023 (Amounts in thousands) Cash paid for amounts included in the measurement of Operating cash flows from operating leases $ 16,917 $ 16,039 $ 17,474 Right-of-use assets obtained in exchange for lease Operating leases $ 74,097 $ 4,588 $ 42,488 The Company reports the amortization of ROU assets and the change in operating lease liabilities on a net basis in accrued expenses and other liabilities in the accompanying Consolidated Statements of Cash Flows. Lessor The Company enters into certain agreements as a lessor under which it rents buildings to third parties. Initial terms of our real estate leases are generally three to five years, exclusive of options to renew, which are generally exercisable at our sole discretion for one term of five years. These leases meet all of the criteria of an operating lease and are accordingly recognized straight line over the lease term. The following table summarizes the amount of operating lease income and other income included in total revenues in the accompanying consolidated statements of operations: 2022 2023 (Amounts in thousands) Operating leases: Operating lease income $ 1,285 $ 9,780 Variable lease income 843 526 Total rental income $ 2,128 $ 10,306 As of September 30, 2023, future minimum payments to be received during the next five years and thereafter are as follows: (Amounts in thousands) 2024 $ 8,553 2025 5,600 2026 4,132 2027 3,113 2028 1,506 Thereafter 42 Total lease payments $ 22,946

Goodwill Other Intangible Asset

Goodwill Other Intangible Assets and Other Long Term Assets	12 Months Ended
Goodwill Other Intangible Assets and Other Long Term Assets	Sep. 30, 2023
Goodwill Intangible Assets And Other Long Term Assets Disclosure [Abstract]
Goodwill Other Intangible Assets and Other Long Term Assets	9. GOODWILL, OTHER INTANGIBLE ASSETS, AND OTHER LONG-TERM ASSETS: In June 2023, we acquired C&C Boat Works, a full-service boat dealer in Crosslake, Minnesota. In January 2023, we acquired Boatzon, a boat and marine digital retail platform, through our recently formed technology entity, New Wave Innovations. In December 2022, we acquired Midcoast Marine Group, a leading full-service marine construction Company based on Central Florida's Gulf Coast. These acquisitions were purchased for an aggregate consideration of approximately $ 49.0 million (net of cash acquired of $ 0.1 million), including estimated contingent consideration of $ 9.7 million. Tangible assets acquired, net of liabilities assumed and cash acquired, totaled approximately $ 20.3 million; intangible assets acquired totaled $ 1.9 million; and total goodwill recognized was approximately $ 26.8 million. The goodwill represents the assembled workforce, acquired capabilities, and future economic benefits resulting from the acquisitions. Approximately $ 13.6 million of goodwill related to these acquisitions is deductible for tax purposes. In October 2022, we purchased all of the outstanding equity of IGY Marinas for an aggregate purchase price of $ 480 million subject to certain customary closing and post-closing adjustments, and net working capital adjustments including certain holdbacks. In addition, the former equity owners of IGY Marinas (“IGY Sellers”) have the opportunity to earn additional consideration as part of a contingent consideration arrangement subject to the achievement of certain performance metrics. The maximum amount of consideration that can be paid under the contingent consideration arrangement is $ 100.0 million. The fair value of $ 67.7 million of the contingent consideration arrangement was estimated with the assistance of a third-party valuation expert by applying an income valuation approach and is included in other long-term liabilities. The earnout was estimated based on certain performance metrics as a base scenario (among other assumptions) subject to a Monte Carlo simulation. The IGY Sellers are subject to certain customary post-closing covenants and indemnities. The acquisition of IGY Marinas expands the Company’s marina footprint and superyacht services offerings and strengthens its position as the global leader in superyacht and luxury marina destinations in the Americas, the Caribbean, Europe, and Asia. The following table summarizes the consideration paid for IGY Marinas and the allocation of the purchase consideration to the estimated fair value of the assets acquired and liabilities assumed at the acquisition date. (Amounts in thousands) Consideration: Cash purchase price and net working capital adjustments, net of cash acquired of $ 28,075 $ 482,997 Contingent consideration arrangement 67,700 Noncontrolling interests in consolidated subsidiaries 2,208 Fair value of total consideration transferred $ 552,905 Recognized amounts of identifiable assets acquired and liabilities assumed: Net working capital, net of cash acquired of $ 28,075 ( 22,880 ) Property and equipment 240,190 Operating lease right-of-use assets 39,720 Intangible assets 30,446 Equity method investments 14,098 Other long-term assets 6,973 Operating lease liabilities ( 29,416 ) Other liabilities ( 1,301 ) Deferred tax liabilities, net ( 18,467 ) Total identifiable net assets acquired: 259,363 Goodwill $ 293,542 Total $ 552,905 The fair value of current assets acquired includes accounts receivable and other current assets of approximately $ 4.5 million and $ 4.1 million, respectively. The fair value of current liabilities assumed includes contract liabilities of approximately $ 13.3 million, tax contingency reserves of approximately $ 8.5 million and accrued expenses of approximately $ 6.4 million. We recorded approximately $ 293.5 million in goodwill and approximately $ 30.4 million of other identifiable intangibles, composed of indefinite-lived trade names and customer relationships, in connection with the IGY Marinas acquisition. The goodwill represents the assembled workforce, our enhanced geographic reach, and global brand infrastructure. Goodwill of approximately $ 193.3 million is expected to be deductible for tax purposes. As of the acquisition date, the customer relationships have a weighted average useful life of approximately 4.5 years and the trade name has an indefinite useful life. For the fiscal years ended 2022 and 2023, IGY Marinas revenue was approximately $ 96.8 and $ 112.4 million, respectively. For the fiscal year ended 2022, IGY Marinas loss before taxes was approximately $ 5.6 million. For the fiscal year ended 2023, IGY Marinas income before taxes was approximately $ 18.1 million. Income before taxes does not include parent level corporate costs. Through one of the subsidiaries that it acquired in the IGY Marinas acquisition, the Company has an investment in certain entities that own a marina asset in Cannes, France, which is accounted for under the equity method, as well as a series of notes receivable due from these entities, with a total notes receivable balance of approximately $ 6.3 million as of September 30, 2023. In August 2022, we expanded our presence in Texas by acquiring Endeavour Marina in Seabrook. In April 2022, through Northrop & Johnson, we acquired Superyacht Management, S.A.R.L., better known as SYM, a superyacht management company based in Golfe-Juan, France. In November 2021, we completed acquisitions for Intrepid Powerboats, a premier manufacturer of powerboats, and Texas MasterCraft, a watersports dealer in Northern Texas, for aggregate consideration of approximately $ 67.2 million (net of cash acquired of $ 9.4 million), including estimated contingent consideration of $ 6.0 million. Tangible assets acquired, net of liabilities assumed and cash acquired, totaled approximately $ 20.3 million; intangible assets acquired totaled $ 7.3 million; and total goodwill recognized was approximately $ 39.6 million. The goodwill represents the assembled workforce, acquired capabilities, and future economic benefits resulting from the acquisitions. Approximately $ 10.7 million of goodwill related to the acquisitions, wholly attributable to Texas MasterCraft, is deductible for tax purposes. In July 2021, we purchased Nisswa Marine, Inc. a full-service dealer located in Nisswa, Minnesota. Goodwill and other intangible assets associated with the Nisswa Marine acquisition was approximately $ 15.3 million. In May 2021, we purchased all of the outstanding equity of KCS International Holdings, Inc., and certain affiliates (“Cruisers Yachts”) for an aggregate purchase price of $ 62.7 million, subject to certain customary closing and post-closing adjustments, and net working capital adjustments including certain holdbacks. The former owners of Cruisers Yachts are subject to certain customary post-closing covenants and indemnities. The following table summarizes the consideration paid for Cruisers Yachts and the allocation of the purchase consideration to the estimated fair value of the assets acquired and liabilities assumed at the acquisition date. (Amounts in thousands) Consideration: Cash purchase price and net working capital adjustments, net of cash acquired of $ 5,993 $ 61,448 Recognized amounts of identifiable assets acquired and liabilities assumed: Current assets, net of cash acquired of $ 5,993 $ 29,869 Property and equipment 12,126 Intangible assets 4,602 Current liabilities ( 25,283 ) Total identifiable net assets acquired: 21,314 Goodwill $ 40,134 Total $ 61,448 The fair value of current assets acquired includes accounts receivable and inventory of approximately $ 3.1 million and $ 26.2 million, respectively. The fair value of current liabilities assumed includes short-term borrowings of approximately $ 11.7 million, accrued expenses of approximately $ 10.3 million, and accounts payable of approximately $ 3.0 million. The intangible assets acquired include the trade name and customer relationships. The goodwill represents the assembled workforce, acquired capabilities, and future economic benefits resulting from the acquisition. The majority of the goodwill is expected to be deductible for tax purposes. The customer relationships have a weighted average useful life of approximately 2.0 years. The trade name has an indefinite life. Our results for fiscal 2021 include results from Cruisers Yachts between May 2, 2021 and September 30, 2021. Refer to Note 21 for disclosure of the revenues and income from operations. We have not disclosed the pro forma effect of Cruisers Yachts’ financial information for fiscal 2020 and prior to acquisition on May 2, 2021, because Cruisers Yachts’ historical monthly internal accounting and reporting processes and practices would not provide complete information sufficient for the purposes of this pro forma disclosure. In total, goodwill and other intangible assets increased, primarily due to acquisitions, by $ 45.3 million and $ 353.1 million, for the fiscal years ended September 30, 2022 and 2023, respectively. These acquisitions have resulted in the recording of goodwill for tax purposes of $ 10.5 million and $ 216.0 million, for the fiscal years ended September 30, 2022 and 2023, respectively. Current and previous acquisitions have resulted in the recording of $ 235.6 million and $ 559.8 million in goodwill and $ 10.9 million and $ 39.7 million in other intangible assets as of September 30, 2022 and 2023, respectively. Effective May 2, 2021, our reportable segments changed as a result of the Company’s acquisition of Cruisers Yachts, which changed management’s reporting structure and operating activities. We now report our operations through two new reportable segments: Retail Operations and Product Manufacturing. As a result, the Company allocated goodwill to its reporting units within the Company’s two reportable segments. The following table sets forth the changes in carrying amount of goodwill by reportable segment for the fiscal years ended September 30, 2022 and 2023: Retail Operations Product Manufacturing Total (Amounts in thousands) Balance as of September 30, 2021 $ 155,429 $ 40,134 $ 195,563 Goodwill acquired 14,035 28,900 42,935 Foreign currency translation ( 2,913 ) — ( 2,913 ) Balance as of September 30, 2022 $ 166,551 $ 69,034 $ 235,585 Goodwill acquired 321,166 — 321,166 Foreign currency translation 3,069 — 3,069 Balance as of September 30, 2023 $ 490,786 $ 69,034 $ 559,820 Other intangible assets, net, at September 30, consisted of the following: 2022 2023 (Amounts in thousands) Trade names — indefinite-lived $ 7,736 $ 17,712 Other intangible assets, primarily customer relationships 5,948 25,929 13,684 43,641 Less: accumulated amortization ( 2,798 ) ( 3,928 ) Intangible assets, net $ 10,886 $ 39,713 The following table sets forth the aggregate amortization expense for each of the five succeeding fiscal years: (Amounts in thousands) 2024 $ 7,708 2025 7,261 2026 5,083 2027 3,698 2028 15 Total $ 23,765

Accrued Expenses

Accrued Expenses	12 Months Ended
Accrued Expenses	Sep. 30, 2023
Accounts Payable And Accrued Liabilities Current [Abstract]
Accrued Expenses	10. ACCRUED EXPENSES: Accrued expenses consisted of the following as of September 30, 2022 2023 (Amounts in thousands) Payroll accruals $ 41,413 $ 43,273 Customer and storage accruals 18,095 28,829 Sales and other taxes payable 5,930 9,673 Other accruals 23,964 30,971 Accrued expenses $ 89,402 $ 112,746

Short-Term Borrowings and Long-

Short-Term Borrowings and Long-Term Debt	12 Months Ended
Short-Term Borrowings and Long-Term Debt	Sep. 30, 2023
Debt Disclosure [Abstract]
Short-Term Borrowings and Long-Term Debt	11. SHORT-TERM BORROWINGS AND LONG-TERM DEBT: In July 2023, we executed the Amended Credit Facility with Manufacturers and Traders Trust Company ("M&T Bank") as Administrative Agent, Swingline Lender, and Issuing Bank, Wells Fargo Commercial Distribution Finance, LLC, as Floor Plan Agent, and the lenders party thereto (the “Amended Credit Facility”). The Amended Credit Facility provides the Company short-term borrowing in the form of a line of credit with asset-based borrowing availability ( the "Floor Plan") of up to $ 950 million and establishes a revolving credit facility in the maximum amount of $ 100 million (including a $ 20 million swingline facility and a $ 20 million letter of credit sublimit). The Amended Credit Facility also provides long-term debt in the form of a delayed draw term loan facility to finance the acquisition of IGY Marinas in the maximum amount of $ 400 million, and a $ 100 million delayed draw mortgage loan facility. The maturity of each of the facilities is August 2027 . As of September 30, 2023, our available borrowings under the delayed draw mortgage loan facility were approximately $ 100 million, and our available borrowings under the revolving credit facility were approximately $ 88 million. The interest rate is (a) for amounts outstanding under the Floor Plan, 3.45 % above the one month secured term rate as administered by the CME Group Benchmark Administration Limited (CBA) (“SOFR”), (b) for amounts outstanding under the revolving credit facility or the term loan facility, a range of 1.50 % to 2.0 %, depending on the total net leverage ratio, above the one month, three month, or six month term SOFR rate, and (c) for amounts outstanding under the mortgage loan facility, 2.20 % above the one month, three month, or six month term SOFR rate. The alternate base rate with a margin is available for amounts outstanding under the revolving credit, term, and mortgage loan facilities and the Euro Interbank Offered Rate plus a margin is available for borrowings in Euro or other currencies other than dollars under the revolving credit facility. The Amended Credit Agreement has certain financial covenants as specified in the agreement. The covenants include provisions that our leverage ratio must not exceed 3.35 to 1.0 and that our consolidated fixed charge coverage ratio must be greater than 1.10 to 1.0. As of September 30, 2023 , we were in compliance with all covenants under the Amended Credit Agreement. The Amended Credit Agreement is secured by the Company’s personal property assets, including inventory and related accounts receivable. The mortgage loans will also be secured by the real estate pledged as collateral for such loans. In August 2022, we entered into a Credit Agreement with Manufacturers and Traders Trust Company as Administrative Agent, Swingline Lender, and Issuing Bank, Wells Fargo Commercial Distribution Finance, LLC, as Floor Plan Agent, and the lenders party thereto (the “New Credit Agreement”). The New Credit Agreement provides the Company short-term borrowing (the "2022 Floor Plan") in the form of a line of credit with asset based borrowing availability of up to $ 750 million and establishes a revolving credit facility in the maximum amount of $ 100 million (including a $ 20 million swingline facility and a $ 20 million letter of credit sublimit). The New Credit Agreement also provides long-term debt in the form of a delayed draw term loan facility to finance the acquisition of IGY Marinas in the maximum amount of $ 400 million, and a $ 100 million delayed draw mortgage loan facility. The maturity of each of the facilities is August 2027 . The New Credit Facility was replaced by the Amended Credit Facility in July 2023. As of September 30, 2023 , our outstanding short term borrowings under the Floor Plan associated with financing our inventory and working capital needs totaled approximately $ 538.7 million. As of September 30, 2023 , our short-term borrowings, which solely consisted of the Floor Plan, included unamortized debt issuance costs of approximately $ 1.6 million. As of September 30, 2022 , our indebtedness associated with financing our inventory and working capital needs totaled approximately $ 135.1 million, and included unamortized debt issuance costs of approximately $ 3.1 million. As of September 30, 2022 and 2023 , the interest rate on the outstanding short-term borrowings, which solely consisted of the 2022 Floor Plan and Floor Plan, was approximately 6.0 % and 8.8 %, respectively. As of September 30, 2023 , our additional available borrowings under our Amended Credit Facility were approximately $ 8.5 million based upon the outstanding borrowing base availability. As of September 30, 2023, no amounts were withdrawn on the revolving credit facility or the delayed draw mortgage loan facility. As of September 30, 2023, we had approximately $ 12 million in letters of credit that reduced the available borrowings under the revolving credit facility. As is common in our industry, we receive interest assistance directly from boat manufacturers, including Brunswick. The interest assistance programs vary by manufacturer, but generally include periods of free financing or reduced interest rate programs. The interest assistance may be paid directly to us or our lender depending on the arrangements the manufacturer has established. We classify interest assistance received from manufacturers as a reduction of inventory cost and related cost of sales. The availability and costs of borrowed funds can adversely affect our ability to obtain adequate boat inventory and the holding costs of that inventory as well as the ability and willingness of our customers to finance boat purchases. However, we rely on our Amended Credit Agreement to purchase our inventory of boats. The aging of our inventory limits our borrowing capacity as defined curtailments reduce the allowable advance rate as our inventory ages. Our access to funds under our Amended Credit Agreement also depends upon the ability of our lenders to meet their funding commitments, particularly if they experience shortages of capital, experience excessive volumes of borrowing requests from others during a short period of time or otherwise experience liquidity issues of their own as other lending institutions have recently experienced. Unfavorable economic conditions, weak consumer spending, turmoil in the credit markets, and lender difficulties, among other potential reasons, could interfere with our ability to utilize our Amended Credit Agreement to fund our operations. Any inability to utilize our Amended Credit Agreement could require us to seek other sources of funding to repay amounts outstanding under the credit agreements or replace or supplement our credit agreements, which may not be possible at all or under commercially reasonable terms. Similarly, decreases in the availability of credit and increases in the cost of credit adversely affect the ability of our customers to purchase boats from us and thereby adversely affect our ability to sell our products and impact the profitability of our finance and insurance activities. Long-term Debt The below table summarizes the Company’s long-term debt. September 30, 2023 (Amounts in thousands) Mortgage facility payable to Flagship Bank bearing interest at 7.50 % (prime minus 100 basis points with a floor of 2.00 %). Requires monthly principal and interest payments with a balloon payment of approximately $ 4.0 million due August 2027 . $ 5,907 Mortgage facility payable to Seacoast National Bank bearing interest at 7.88 % (SOFR plus 220 basis points). Requires monthly interest payments for the first year and then monthly principal and interest payments with a balloon payment of approximately $ 10.0 million due September 2031 . 16,735 Mortgage facility payable to Hancock Whitney Bank bearing interest at 7.88 % (prime minus 62.5 basis points with a floor of 2.25 %). Requires monthly principal and interest payments with a balloon payment of approximately $ 15.5 million due November 2027 . 50 % of the outstanding borrowings are hedged with an interest rate swap contract with a fixed rate of 3.20 %. 23,279 Revolving mortgage facility with FineMark National Bank & Trust bearing interest at 8.25 % (prime minus 25 basis points with a floor of 3.00 %). Facility matures in October 2027 . Current available borrowings under the facility were approximately $ 22.7 million at September 30, 2023. — Term loan payable to M&T Bank bearing interest at 6.83 % as of September 30, August 2027 . 377,500 Loan payable to TRANSPORT S.a.s di Taula Vittorio & C. bearing interest 7.08 %. Requires quarterly principal and interest payments. December 2030 . 1,478 Total long-term debt 424,899 Less: current portion ( 33,767 ) Less: unamortized portion of debt issuance costs ( 1,901 ) Long-term debt, net current portion and unamortized debt issuance costs $ 389,231 September 30, 2022 (Amounts in thousands) Mortgage facility payable to Flagship Bank bearing interest at 5.25 % (prime minus 100 basis points with a floor of 2.00 %). Requires monthly principal and interest payments with a balloon payment of approximately $ 4.0 million due August 2027 . $ 6,403 Mortgage facility payable to Seacoast National Bank bearing interest at 5.63 % (greater of 3.00% or prime minus 62.5 basis points ). Requires monthly interest payments for the first year and then monthly principal and interest payments with a balloon payment of approximately $ 6.0 million due September 2031 . 17,098 Mortgage facility payable to Hancock Whitney Bank bearing interest at 5.63 % (prime minus 62.5 basis points with a floor of 2.25 %). Requires monthly principal and interest payments with a balloon payment of approximately $ 15.5 million due November 2027 . 50 % of the outstanding borrowings are hedged with an interest rate swap contract with a fixed rate of 3.20 %. 25,192 Revolving mortgage facility with FineMark National Bank & Trust bearing interest at 6.00 % (prime minus 25 basis points with a floor of 3.00 %). Facility matures in October 2027. Current available borrowings under the facility were approximately $ 24.5 million at September 30, 2022. — Total long-term debt 48,693 Less: current portion ( 2,882 ) Less: unamortized portion of debt issuance costs ( 510 ) Long-term debt, net current portion and unamortized debt issuance costs $ 45,301 As of September 30, 2023, the aggregate maturities of long-term debt by fiscal year are summarized as follows: (Amounts in thousands) 2024 $ 33,767 2025 33,767 2026 33,767 2027 295,190 2028 16,983 Thereafter 11,425 Total long-term debt $ 424,899

Income Taxes

Income Taxes	12 Months Ended
Income Taxes	Sep. 30, 2023
Income Tax Disclosure [Abstract]
Income Taxes	12. INCOME TAXES: Income before income tax provision consisted of the following components for the fiscal years ended September 30, 2021 2022 2023 (Amounts in thousands) Income before income tax provision: United States $ 202,643 $ 254,052 $ 130,535 Other 3,151 7,869 16,900 Total $ 205,794 $ 261,921 $ 147,435 The components of our provision from income taxes consisted of the following for the fiscal years ended September 30, 2021 2022 2023 (Amounts in thousands) Current provision: Federal $ 38,028 $ 49,380 $ 9,315 Foreign 1,516 1,739 3,204 State 6,527 11,004 2,307 Total current provision $ 46,071 $ 62,123 $ 14,826 Deferred provision: Federal $ 4,201 $ 1,650 $ 18,723 Foreign — — — State 543 159 4,408 Total deferred provision 4,744 1,809 23,131 Total income tax provision $ 50,815 $ 63,932 $ 37,957 Below is a reconciliation of the statutory federal income tax rate to our effective tax rate for the fiscal years ended September 30, 2021 2022 2023 Federal tax provision 21.0 % 21.0 % 21.0 % State taxes, net of federal benefit 3.7 % 3.4 % 3.6 % Stock-based compensation ( 0.7 )% ( 0.6 )% ( 0.2 )% Valuation allowance — — — Foreign rate differential 0.1 % — 0.2 % US tax on foreign earnings — — 1.4 % Equity Investment — — ( 0.9 )% Other 0.6 % 0.6 % 0.6 % Effective tax rate 24.7 % 24.4 % 25.7 % Deferred income taxes reflect the impact of temporary differences between the amount of assets and liabilities recognized for financial reporting purposes and such amounts recognized for income tax purposes. The tax effects of these temporary differences representing the components of deferred tax assets as of September 30, 2022 2023 (Amounts in thousands) Deferred tax assets: Inventories $ 831 $ 1,010 Operating lease liabilities 23,323 31,103 Accrued expenses 889 1,069 Stock-based compensation 4,147 5,508 Interest deductions — 2,413 US tax effect of foreign taxes — 4,908 Tax loss carryforwards 599 2,919 Other 1,154 1,826 Valuation Allowance — ( 556 ) Total long-term deferred tax assets $ 30,943 $ 50,200 Deferred tax liabilities: Depreciation and amortization ( 22,369 ) ( 69,904 ) Operating lease right-of-use assets ( 22,733 ) ( 31,392 ) Equity method investments — ( 3,835 ) Other ( 1,242 ) ( 1,996 ) Total long-term deferred tax liabilities $ ( 46,344 ) $ ( 107,127 ) Net deferred tax liabilities $ ( 15,401 ) $ ( 56,927 ) Pursuant to ASC 740, we must consider all positive and negative evidence regarding the realization of deferred tax assets. ASC 740 provides four possible sources of taxable income to realize deferred tax assets: 1) taxable income in prior carryback years, 2) reversals of existing deferred tax liabilities, 3) tax planning strategies and 4) projected future taxable income. As of September 30, 2022, we have no available taxable income in prior carryback years and have not identified prudent and feasible tax planning strategies. Therefore, the recoverability of our deferred tax assets is dependent upon the reversal of existing deferred tax liabilities and generating future taxable income. It is more likely than not that we will generate sufficient taxable income to realize the deferred tax asset not offset by reversing deferred tax liabilities. As of September 30, 2023 , the Company has NOL carryforwards of approximately $ 7.8 million and $ 7.3 million for state and foreign income tax purposes, respectively, which resulted in a deferred tax asset of $ 2.9 million, and expire at various dates beginning in 2024 . Significant judgment is required in evaluating our uncertain tax positions. Although we believe our tax return positions are sustainable, we recognize tax benefits from uncertain tax positions in the consolidated financial statements only when it is more likely than not that the positions will be sustained upon examination, including resolution of any related appeals or litigation processes, based on the technical merits and a consideration of the relevant taxing authority’s administrative practices and precedents. To the extent that the final tax outcome of these matters is different than the amounts recorded, such differences will impact the provision for income taxes in the period in which such determination is made. The provision for income taxes includes the impact of reserve provisions and changes to reserves that are considered appropriate, as well as the related net interest and penalties. As of September 30, 2022 and 2023, we had approximately $ 5.8 million of gross unrecognized tax benefits. The reconciliation of the total amount recorded for unrecognized tax benefits at the beginning and end of the fiscal years ended September 30, 2022 and 2023 is as follows: 2022 2023 (Amounts in thousands) Unrecognized tax benefits at the beginning of the year $ — $ — Increases in tax positions for prior years — 5,837 Decreases in tax positions for prior years — ( 4 ) Unrecognized tax benefits at the end of the year $ — $ 5,833 Consistent with our prior practices, we recognize interest and penalties related to uncertain tax positions as a component of income tax expense. As of September 30, 2022 and 2023, interest and penalties represented approximately $ 1.4 million of the gross unrecognized tax benefits. We are subject to tax by federal, state, and foreign taxing authorities. Until the respective statutes of limitations expire, we are subject to income tax audits in the jurisdictions in which we operate. We are no longer subject to U.S. federal tax assessments for fiscal years prior to 2020, we are not subject to assessments prior to the 2017 fiscal year for the majority of the State jurisdictions and we are not subject to assessments prior to the 2018 calendar year for the majority of the foreign jurisdictions.

Shareholders' Equity

Shareholders' Equity	12 Months Ended
Shareholders' Equity	Sep. 30, 2023
Equity [Abstract]
Shareholders' Equity	13. SHAREHOLDERS’ EQUITY: In March 2020, our Board of Directors approved a new share repurchase plan allowing the Company to repurchase up to 10 million shares of our common stock through March 2022. The share repurchase plan was subsequently extended in March 2022 through March 2024. Under the plan, we may buy back common stock from time to time in the open market or in privately negotiated blocks, dependent upon various factors, including price and availability of the shares, and general market conditions. Through September 30, 2023 we had purchased an aggregate of 7,267,021 shares of common stock under the current and historical share repurchase plans for an aggregate purchase price of approximately $ 148.7 million. As of September 30, 2023 , approximately 8.9 million shares remained available for future purchases under the share repurchase program.

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
Stock-Based Compensation	Sep. 30, 2023
Share-Based Payment Arrangement [Abstract]
Stock-Based Compensation	14. STOCK-BASED COMPENSATION: We account for our stock-based compensation plans following the provisions of FASB ASC 718, “Compensation — Stock Compensation” (“ASC 718”). In accordance with ASC 718, we use the Black-Scholes valuation model for valuing all options granted (Note 16) and shares purchased under our Amended 2008 Employee Stock Purchase Plan (“Stock Purchase Plan”). We measure compensation for restricted stock awards and restricted stock units (Note 17) at fair value on the grant date based on the number of shares expected to vest and the quoted market price of our common stock. We recognize compensation cost for all awards in operations on a straight-line basis over the requisite service period for each separately vesting portion of the award. Stock-based compensation expense recorded in selling, general, and administrative expenses was approximately $ 9.7 million, $ 16.0 million, and $ 21.7 million, for the fiscal years ended September 30, 2021, 2022, and 2023, respectively. Cash received from option exercises under all share-based compensation arrangements for the fiscal years ended September 30, 2021, 2022 and 2023 was approximately $ 2.6 million, $ 2.2 million, and $ 2.4 million, respectively. We currently expect to satisfy share-based awards with registered shares available to be issued from the Stock Purchase Plan.

The Incentive Stock Plans

The Incentive Stock Plans	12 Months Ended
The Incentive Stock Plans	Sep. 30, 2023
Share-Based Payment Arrangement [Abstract]
The Incentive Stock Plans	15. THE INCENTIVE STOCK PLANS: In February 2023, our shareholders approved a proposal to amend our 2021 Plan, to increase the total number of available shares by 1,300,000 . In February 2022, our shareholders approved a proposal to authorize our 2021 Stock-Based Compensation Plan (“2021 Plan”), which replaced our 2011 Stock-Based Compensation Plan (“2011 Plan”). Our 2021 Plan provides for the grant of stock options, stock appreciation rights, restricted stock, stock units, bonus stock, dividend equivalents, other stock related awards, and performance awards (collectively “awards”), that may be settled in cash, stock, or other property. Our 2021 Plan is designed to attract, motivate, retain, and reward our executives, employees, officers, directors, and independent contractors by providing such persons with annual and long-term performance incentives to expend their maximum efforts in the creation of shareholder value. The total number of shares of our common stock that may be subject to awards under the 2021 Plan is equal to 2,300,000 shares, plus: (i) any shares available for issuance and not subject to an award under the 2007 Plan or the 2011 Plan, which was 545,729 in aggregate at the time of the approval of the 2021 Plan; (ii) the number of shares with respect to which awards granted under the 2021 Plan, the 2011 Plan or the 2007 Plan terminate without the issuance of the shares or where the shares are forfeited or repurchased; (iii) with respect to awards granted under the 2021 Plan, the 2011 Plan and the 2007 Plan, the number of shares that are not issued as a result of the award being settled for cash or otherwise not issued in connection with the exercise or payment of the award; and (iv) the number of shares that are surrendered or withheld in payment of the exercise price of any award or any tax withholding requirements in connection with any award granted under the 2021 Plan, the 2011 Plan or the 2007 Plan. The 2021 Plan terminates in February 2032, and awards may be granted at any time during the life of the 2021 Plan. The dates on which awards vest are determined by the Board of Directors or the Plan Administrator. The Board of Directors has appointed the Compensation Committee as the Plan Administrator. The exercise prices of options are determined by the Board of Directors or the Plan Administrator and are at least equal to the fair market value of shares of common stock on the date of grant. The term of options under the 2021 Plan may not exceed ten years. The options granted have varying vesting periods. To date, we have not settled or been under any obligation to settle any awards in cash. The following table summarizes activity from our incentive stock plans from September 30, 2022 through September 30, 2023: Shares Options Aggregate Weighted Weighted Balance as of September 30, 2022 1,536,094 62,750 $ 893 $ 17.62 2.3 Shares authorized 1,300,000 — — Options granted ( 5,000 ) 5,000 31.20 2.0 Options cancelled/forfeited/expired 10,000 ( 10,000 ) 7.48 Options exercised — ( 3,000 ) 13.06 Restricted stock awards granted ( 825,573 ) — — Restricted stock awards forfeited 20,445 — — Additional shares of stock issued ( 51,378 ) — — Balance as of September 30, 2023 1,984,588 54,750 $ 746 $ 20.96 2.5 Exercisable as of September 30, 2023 51,416 $ 705 $ 20.30 2.1 No options were granted during the fiscal year ended September 30, 2022. During the fiscal year ended September 30, 2023, 5,000 options were granted. The total intrinsic value of options exercised during the fiscal years ended September 30, 2021, 2022 and 2023 was approximately $1 .8 million, $ 1.4 million, and $ 0.1 million, respectively. We used the Black-Scholes model to estimate the fair value of options granted. The expected term of options granted is estimated based on historical experience. Volatility is based on the historical volatility of our common stock. The risk-free rate for periods within the contractual term of the options is based on the U.S. Treasury yield curve in effect at the time of grant.

Employee Stock Purchase Plan

Employee Stock Purchase Plan	12 Months Ended
Employee Stock Purchase Plan	Sep. 30, 2023
Share-Based Payment Arrangement [Abstract]
Employee Stock Purchase Plan	16. EMPLOYEE STOCK PURCHASE PLAN: In February 2019, our shareholders approved a proposal to amend our Stock Purchase Plan to increase the number of shares available under that plan by 500,000 shares. The Stock Purchase Plan as amended provides for up to 1,500,000 shares of common stock to be available for purchase by our regular employees who have completed at least one year of continuous service. In addition, there were 52,837 shares of common stock available under our 1998 Employee Stock Purchase Plan, which have been made available for issuance under our Stock Purchase Plan. The Stock Purchase Plan provides for implementation of annual offerings beginning on the first day of October in each of the years 2008 through 2027, with each offering terminating on September 30 of the following year. Each annual offering may be divided into two six-month offerings. For each offering, the purchase price per share will be the lower of: (i) 85% of the closing price of the common stock on the first day of the offering or (ii) 85 % of the closing price of the common stock on the last day of the offering. The purchase price is paid through periodic payroll deductions not to exceed 10 % of the participant’s earnings during each offering period. However, no participant may purchase more than $ 25,000 worth of common stock annually. We used the Black-Scholes model to estimate the fair value of options granted to purchase shares issued pursuant to the Stock Purchase Plan. Volatility is based on the historical volatility of our common stock. The risk-free rate for periods within the contractual term of the options is based on the U.S. Treasury yield curve in effect at the time of grant. The following are the weighted-average assumptions used for the fiscal years ended September 30, 2021 2022 2023 Dividend yield 0.0 % 0.0 % 0.0 % Risk-free interest rate 0.1 % 0.7 % 4.4 % Volatility 69.6 % 49.0 % 47.1 % Expected life Six months Six months Six months As of September 30, 2023 , we had issued 1,284,679 shares of common stock under our Stock Purchase Plan.

Restricted Stock Awards

Restricted Stock Awards	12 Months Ended
Restricted Stock Awards	Sep. 30, 2023
Share-Based Payment Arrangement [Abstract]
Restricted Stock Awards	17. RESTRICTED STOCK AWARDS: We have granted non-vested (restricted) stock awards (“restricted stock”) and restricted stock units (“RSUs”) to employees, directors, and officers pursuant to the 2021 Plan, 2011 Plan, and the 2007 Plan. The restricted stock awards and RSUs have varying vesting periods, but generally become fully vested between two and four years after the grant date, depending on the specific award, performance targets met for performance-based awards granted to officers, and vesting period for time-based awards. Officer performance-based awards are granted at the target amount of shares that may be earned and the actual amount of the award earned generally could range from 0 % to 175 % of the target number of shares based on the actual specified performance target met. We accounted for the restricted stock awards granted using the measurement and recognition provisions of ASC 718. Accordingly, the fair value of the restricted stock awards, including performance-based awards, is measured on the grant date and recognized in earnings over the requisite service period for each separately vesting portion of the award. The following table summarizes restricted stock award activity from September 30, 2022 through September 30, 2023: Shares/ Weighted Non-vested balance as of September 30, 2022 934,517 $ 35.23 Changes during the period: Awards granted 825,573 $ 32.16 Awards vested ( 398,494 ) $ 29.75 Awards forfeited ( 20,445 ) $ 31.98 Non-vested balance as of September 30, 2023 1,341,151 $ 35.02 As of September 30, 2023 , we had approximately $ 25.2 million of total unrecognized compensation cost, assuming applicable performance conditions are met, related to non-vested restricted stock awards. We expect to recognize that cost over a weighted-average period of 1.9 years.

Net Income Per Share

Net Income Per Share	12 Months Ended
Net Income Per Share	Sep. 30, 2023
Earnings Per Share [Abstract]
Net Income Per Share	18. NET INCOME PER SHARE: The following table presents shares used in the calculation of basic and diluted net income per share for the fiscal years ended September 30, 2021 2022 2023 Weighted average common shares outstanding used in 22,010,130 21,706,225 21,852,425 Effect of dilutive options and non-vested restricted 849,368 692,984 576,956 Weighted average common and common equivalent 22,859,498 22,399,209 22,429,381 For the fiscal years ended September 30, 2021, 2022, and 2023 there were 1,619 , 71,976 and 10,963 weighted average shares of options outstanding and non-vested restricted stock outstanding, respectively, that were not included in the computation of diluted net income per share because the options’ exercise prices or non-vested restricted stock prices were greater than the average market price of our common stock, and therefore, their effect would be anti-dilutive.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
Commitments and Contingencies	Sep. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	19. COMMITMENTS AND CONTINGENCIES: We are party to various legal actions arising in the ordinary course of business. While it is not feasible to determine the actual outcome of these actions as of September 30, 2023, we believe that these matters should not have a material adverse effect on our consolidated financial condition, results of operations or cash flows. In connection with certain of our workers’ compensation insurance policies, we maintain standby letters of credit and surety bonds for our insurance carriers in the amount of $ 2.0 million relating primarily to retained risk on our workers compensation claims. In connection with our equity investment in Cannes, France, we maintain standby letters of credit of approximately $ 12.0 million. We are subject to federal and state environmental regulations, including rules relating to air and water pollution and the storage and disposal of gasoline, oil, other chemicals and waste. We believe that we are in compliance with such regulations.

Employee 401(k) Profit Sharing

Employee 401(k) Profit Sharing Plans	12 Months Ended
Employee 401(k) Profit Sharing Plans	Sep. 30, 2023
Compensation And Retirement Disclosure [Abstract]
Employee 401(k) Profit Sharing Plans	20. EMPLOYEE 401(k) PROFIT SHARING PLANS: Employees are eligible to participate in our 401(k) Profit Sharing Plan (the “Plan”) following their 90 -day introductory period starting either April 1 or October 1 , provided that they are 21 years of age. Under the Plan, we matched 50 % of participants’ contributions, up to a maximum of 6 % of each participant’s compensation. We contributed, under the Plan, or pursuant to previous similar plans, approximately $ 5.0 million, $ 6.1 million, and $ 7.1 million for the fiscal years ended September 30, 2021, 2022 and 2023 , respectively.

Segment Information

Segment Information	12 Months Ended
Segment Information	Sep. 30, 2023
Segment Reporting [Abstract]
Segment Information	21. SEGMENT INFORMATION: Change in Reportable Segments Effective May 2, 2021, our reportable segments changed as a result of the Company’s acquisition of Cruisers Yachts, which changed management’s reporting structure and operating activities. We now report our operations through two operating segments, which are also reportable segments: Retail Operations and Product Manufacturing. Reportable Segments The Company’s segments are defined by management’s reporting structure and operating activities. Our chief operating decision maker (“CODM”) is our Chief Executive Officer. Our CODM reviews operational income statement information by segment for purposes of making operating decisions, assessing financial performance, and allocating resources. The CODM is not provided asset information by segment. The Company’s reportable segments are the following: Retail Operations. The Retail Operations segment includes the sale of new and used recreational boats, including pleasure and fishing boats, with a focus on premium brands in each segment. We also sell related marine products, including engines, trailers, parts, and accessories. In addition, we provide repair, maintenance, and slip and storage rentals; we arrange related boat financing, insurance, and extended service contracts; we offer boat and yacht brokerage sales; and we offer yacht charter services. In the British Virgin Islands, we offer the charter of catamarans through MarineMax Vacations. Fraser Yachts Group and Northrop & Johnson, leading superyacht brokerage and luxury yacht services companies with operations in multiple countries, are also included in this segment. We also maintain a network of strategically positioned luxury marinas situated in yachting and sport fishing destinations around the world through IGY Marinas, which is also included in this segment. The Retail Operations segment includes the majority of all corporate costs. Product Manufacturing. The Product Manufacturing segment includes activity of Cruisers Yachts and Intrepid Powerboats. Cruisers Yachts, a wholly-owned MarineMax subsidiary, manufacturing sport yacht and yachts with sales through our select retail dealership locations and through independent dealers. Cruisers Yachts is recognized as one of the world’s premier manufacturers of premium sport yacht and yachts, producing models from 33 ’ to 60 ’ feet. Intrepid Powerboats, also a wholly-owned MarineMax subsidiary, is recognized as a world class producer of customized boats, carefully reflecting the unique desires of each individual owner. Intrepid Powerboats follows a direct-to-consumer distribution model and has received many awards and accolades for its innovations and high-quality craftsmanship that create industry leading products in their categories. Intersegment revenue represents yachts that were manufactured in our Product Manufacturing segment and were sold to our Retail Operations segment. The Product Manufacturing segment supplies our Retail Operations segment along with various independent dealers. The following table sets forth depreciation and amortization for each of the Company’s reportable segments for the fiscal years ended September 30, 2021 2022 2023 (Amounts in thousands) Depreciation: Retail Operations $ 13,821 $ 16,577 $ 28,172 Product Manufacturing 32 131 4,138 Depreciation $ 13,853 $ 16,708 $ 32,310 Amortization: Retail Operations $ 1,429 $ 857 $ 7,096 Product Manufacturing 324 1,853 1,626 Amortization $ 1,753 $ 2,710 $ 8,722 The following table sets forth revenue and income from operations for each of the Company’s reportable segments for the fiscal years ended September 30, 2021 2022 2023 (Amounts in thousands) Revenue: Retail Operations $ 2,043,613 $ 2,212,922 $ 2,294,362 Product Manufacturing 44,000 176,273 222,289 Elimination of intersegment revenue ( 24,356 ) ( 81,097 ) ( 121,945 ) Revenue $ 2,063,257 $ 2,308,098 $ 2,394,706 Income from operations: Retail Operations $ 207,034 $ 249,186 $ 192,487 Product Manufacturing 6,940 20,258 23,420 Intersegment adjustments ( 4,515 ) ( 4,240 ) ( 15,105 ) Income from operations $ 209,459 $ 265,204 $ 200,802

Related Parties

Related Parties	12 Months Ended
Related Parties	Sep. 30, 2023
Related Party Transactions [Abstract]
Related Parties	22. RELATED PARTIES: Through one of the subsidiaries that it acquired in the IGY Marinas acquisition, the Company has an investment in certain entities that own a marina asset in Cannes, France, which is accounted for under the equity method, as well as a series of notes receivable due from these entities, with a total notes receivable balance of approximately $ 6.3 million as of September 30, 2023. In October 2020 we acquired Skipper Marine Holdings, Inc. and certain affiliates (collectively, "SkipperBud’s") and retained the previous management of SkipperBud’s. As a result of the acquisition, certain SkipperBud’s locations were leased by MarineMax from the SkipperBud’s sellers and management. Total lease payments to the management of SkipperBud’s were approximately $ 5.7 million for fiscal years 2022 and 2023.

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	12 Months Ended
Significant Accounting Policies (Policies)	Sep. 30, 2023
Accounting Policies [Abstract]
Cash and Cash Equivalents	Cash and Cash Equivalents We consider all highly liquid investments with an original maturity of three months or less to be cash equivalents.
Vendor Consideration Received	Vendor Consideration Received We classify interest assistance received from manufacturers as a reduction of inventory cost and related cost of sales. Amounts received by us under our co-op assistance programs from our manufacturers are netted against related advertising expenses. Our consideration received from our vendors contains uncertainties because the calculation requires management to make assumptions and to apply judgment regarding a number of factors, including our ability to collect amounts due from vendors and the ability to meet certain criteria stipulated by our vendors. We do not believe there is a reasonable likelihood that there will be a change in the future estimates or assumptions we use to calculate our vendor considerations which would result in a material effect on our operating results.
Inventories	Inventories Inventories are stated at the lower of cost or net realizable value. The cost of inventories purchased from our vendors consist of the amount paid to acquire the inventory, net of vendor consideration and purchase discounts, the cost of equipment added, reconditioning costs, inventory deposits, and transportation costs relating to acquiring inventory for sale. Trade-in used boats are initially recorded at fair value and adjusted for reconditioning and other costs. The cost of inventories that are manufactured by the Company consist of material, labor, and manufacturing overhead. Unallocated overhead and abnormal costs are expensed as incurred. New and used boats, motors, and trailers inventories are accounted for on a specific identification basis. Raw materials and parts, accessories, and other inventories are accounted for on an average cost basis. We utilize our historical experience, the aging of the inventories, and our consideration of current market trends as the basis for determining a lower of cost or net realizable value. We do not believe there is a reasonable likelihood that there will be a change in the future estimates or assumptions we use to calculate the lower of cost or net realizable value. If events occur and market conditions change, the net realizable value of our inventories could change.
Property and Equipment	Property and Equipment We record property and equipment at cost, net of accumulated depreciation, and depreciate property and equipment over their estimated useful lives using the straight-line method. We capitalize and amortize leasehold improvements over the lesser of the life of the lease or the estimated useful life of the asset. Useful lives for purposes of computing depreciation are as follows: Years Buildings and improvements 5 - 40 Machinery and equipment 3 - 10 Furniture and fixtures 5 - 10 Vehicles 3 - 5 We remove the cost of property and equipment sold or retired and the related accumulated depreciation from the accounts at the time of disposition and include any resulting gain or loss in the accompanying Consolidated Statements of Operations. We charge maintenance, repairs, and minor replacements to operations as incurred, and we capitalize and amortize major replacements and improvements over their useful lives.
Goodwill	Goodwill We account for acquisitions in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 805, “Business Combinations” (“ASC 805”), and goodwill in accordance with ASC 350, “Intangibles — Goodwill and Other” (“ASC 350”). For business combinations, the excess of the purchase price over the estimated fair value of net assets acquired in a business combination is recorded as goodwill. In accordance with ASC 350, we test goodwill for impairment at least annually and whenever events or changes in circumstances indicate that the carrying value may not be recoverable. Our annual impairment test is performed during the third fiscal quarter. If the carrying amount of a reporting unit’s goodwill exceeds its fair value we recognize an impairment loss in accordance with ASC 350. Based upon our most recent analysis, we determined through our qualitative assessment that it is not “more likely than not” that the fair values of our reporting units are less than their carrying values. As a result, we were not required to perform a quantitative goodwill impairment test.
Impairment of Long-Lived Assets	Impairment of Long-Lived Assets FASB ASC 360-10-40, “Property, Plant, and Equipment — Impairment or Disposal of Long-Lived Assets” (“ASC 360-10-40”), requires that long-lived assets, such as property and equipment and purchased intangibles subject to amortization, be reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of the asset (or asset group) is measured by comparison of its carrying amount to undiscounted future net cash flows the asset (or asset group) is expected to generate over the remaining life of the asset (or asset group). If such assets are considered to be impaired, the impairment to be recognized is measured as the amount by which the carrying amount of the asset (or asset group) exceeds its fair market value. Estimates of expected future cash flows represent our best estimate based on currently available information and reasonable and supportable assumptions. Our impairment loss calculations contain uncertainties because they require us to make assumptions and to apply judgment in order to estimate expected future cash flows. Any impairment recognized in accordance with ASC 360-10-40 is permanent and may not be restored. Based upon our most recent analysis, we believe no impairment of long-lived assets existed as of September 30, 2023 .
Insurance	Insurance We retain varying levels of risk relating to the insurance policies we maintain, most significantly, workers’ compensation insurance and employee medical benefits. We are responsible for the claims and losses incurred under these programs, limited by per occurrence deductibles and paid claims or losses up to pre-determined maximum exposure limits. Our third-party insurance carriers pay any losses above the pre-determined exposure limits. We estimate our liability for incurred but not reported losses using our historical loss experience, our judgment, and industry information.
Revenue Recognition	Revenue Recognition The majority of our revenue is from contracts with customers for the sale of boats, motors, and trailers. We recognize revenue from boat, motor, and trailer sales upon transfer of control of the boat, motor, or trailer to the customer, which is generally upon acceptance of the boat, motor, and trailer by the customer and the satisfaction of our performance obligations. The transaction price is determined with the customer at the time of sale. Customers may trade in a used boat to apply toward the purchase of a new or used boat. The trade-in is a type of noncash consideration measured at fair value, based on external and internal observable and unobservable market data and applied as payment to the contract price for the purchased boat. At the time of acceptance, the customer is able to direct the use of, and obtain substantially all of the benefits of the boat, motor, or trailer. We recognize commissions earned from a brokerage sale when the related brokerage transaction closes upon transfer of control of the boat, motor, or trailer to the customer, which is generally upon acceptance by the customer. We do not directly finance our customers’ boat, motor, or trailer purchases. In many cases, we assist with third-party financing for boat, motor, and trailer sales. We recognize commissions earned by us for placing notes with financial institutions in connection with customer boat financing when we recognize the related boat sales. Pursuant to negotiated agreements with financial institutions, we are charged back for a portion of these fees should the customer terminate or default on the related finance contract before it is outstanding for a stipulated minimum period of time. We base the chargeback allowance, which was not material to the consolidated financial statements taken as a whole as of September 30, 2022 and 2023, on our experience with repayments or defaults on the related finance contracts. We recognize variable consideration from commissions earned on extended warranty service contracts sold on behalf of third-party insurance companies at generally the later of customer acceptance of the service contract terms as evidenced by contract execution or recognition of the related boat sale. We also recognize marketing fees earned on insurance products sold on behalf of third-party insurance companies at the later of customer acceptance of the insurance product as evidenced by contract execution or when the related boat sale is recognized. We recognize revenue from parts and service operations (boat maintenance and repairs) over time as services are performed. Each boat maintenance and repair service is a single performance obligation that includes both the parts and labor associated with the service. Payment for boat maintenance and repairs is typically due upon the completion of the service, which is generally completed within a short period of time from contract inception. We satisfy our performance obligations, transfer control, and recognize revenue over time for parts and service operations because we are creating a contract asset with no alternative use and we have an enforceable right to payment for performance completed to date. Contract assets primarily relate to our right to consideration for work in process not yet billed at the reporting date associated with maintenance and repair services. We use an input method to recognize revenue and measure progress based on labor hours expended to satisfy the performance obligation at average labor rates. We have determined labor hours expended to be the relevant measure of work performed to complete the maintenance and repair service for the customer. As a practical expedient, because repair and maintenance service contracts have an original duration of one year or less, we do not consider the time value of money, and we do not disclose estimated revenue expected to be recognized in the future for performance obligations that are unsatisfied (or partially unsatisfied) at the end of the reporting period or when we expect to recognize such revenue. Contract assets, recorded in prepaid expenses and other current assets, totaled approximately $ 5.9 million and $ 5.3 million as of September 30, 2022 and September 30, 2023, respectively. We recognize revenue from the sale of our manufactured boats and yachts when control of the boat or yacht is transferred to the dealer or customer which is generally upon acceptance by the dealer or customer. At the time of acceptance, the dealer or customer is able to direct the use of, and obtain substantially all of the benefits of the boat or yacht. We have elected to record shipping and handling activities that occur after the dealer or customer has obtained control of the boat or yacht as a fulfillment activity. We recognize lessor common area charges, utility sales, food and beverage sales and other ancillary goods and services. Performance obligations include performing common area maintenance and providing utilities, food and beverages, and other ancillary goods and services when goods are transferred or services are performed. Payment terms typically align with when the goods and services are provided. Contract liabilities primarily consist of customer deposits. We recognize contract liabilities (customer deposits) as revenue at the time of acceptance and the transfer of control to the customers. Total contract liabilities of approximately $ 94.9 million recorded as of September 30, 2021 were recognized in revenue during the fiscal year ended September 30, 2022 . Total contract liabilities of approximately $ 126.1 million recorded as of September 30, 2022 were recognized in revenue during the fiscal year ended September 30, 2023. We recognize revenue from service operations and slip and storage rentals over time on a straight-line basis over the term of the contract as our performance obligations are met. We recognize revenue from the rentals of chartering power yachts over time on a straight-line basis over the term of the contract as our performance obligations are met. The following table sets forth percentages on the timing of revenue recognition by reportable segment for the fiscal years ended September 30, Retail Operations Product Manufacturing 2021 2022 2023 2021 2022 2023 Goods and services transferred at a point in time 91.6 % 90.9 % 87.2 % 100.0 % 100.0 % 100.0 % Goods and services transferred over time 8.4 % 9.1 % 12.8 % — — — Revenue 100.0 % 100.0 % 100.0 % 100.0 % 100.0 % 100.0 % The following tables set forth our revenue disaggregated into categories that depict the nature, amount, timing, and uncertainty of revenue and cash flows affected by economic factors for the fiscal years ended September 30, 2023 Retail Operations Product Manufacturing Total New boat sales 67.3 % 95.8 % 68.7 % Used boat sales 8.3 % 2.8 % 7.9 % Maintenance and repair services 4.6 % — 4.4 % Storage and charter rentals 7.1 % — 6.7 % Finance and insurance products 2.9 % — 2.8 % Parts and accessories 4.9 % 0.8 % 4.7 % Brokerage sales 4.9 % 0.6 % 4.8 % Revenue 100.0 % 100.0 % 100.0 % 2022 Retail Operations Product Manufacturing Total New boat sales 71.9 % 95.0 % 73.2 % Used boat sales 7.7 % 3.8 % 7.3 % Maintenance and repair services 4.7 % — 4.1 % Storage and charter rentals 3.0 % — 3.3 % Finance and insurance products 3.1 % — 3.0 % Parts and accessories 3.5 % 0.7 % 3.3 % Brokerage sales 6.1 % 0.5 % 5.8 % Revenue 100.0 % 100.0 % 100.0 % 2021 Retail Operations Product Manufacturing Total New boat sales 70.3 % 98.8 % 70.5 % Used boat sales 11.0 % — 10.9 % Maintenance and repair services 4.1 % — 4.1 % Storage and charter rentals 3.0 % — 3.0 % Finance and insurance products 2.7 % — 2.7 % Parts and accessories 3.2 % 1.2 % 3.2 % Brokerage sales 5.7 % — 5.6 % Revenue 100.0 % 100.0 % 100.0 % The following table sets forth our maintenance, repair, storage, rental, charter services and parts and accessories revenue for our Retail Operations by location type. 2021 2022 2023 (Amounts in thousands) Marina/storage locations $ 127,558 $ 143,189 $ 265,847 Locations without marina/storage 82,934 103,102 114,353 Maintenance, repair, storage, rental, charter services, parts and accessories revenue $ 210,492 $ 246,291 $ 380,200
Cost of Sales	Cost of Sales Cost of sales primarily includes cost of products sold, transportation costs from manufacturers to our retail stores, and vendor consideration. Cost of sales includes depreciation of property and equipment from our product manufacturing segment (manufacturing overhead).
Selling, General, and Administrative expenses	Selling, General, and Administrative expenses Selling, general, and administrative expenses primarily include salaries and incentive-based compensation, sales commissions, brokerage commissions, advertising, insurance, utilities, depreciation and amortization, and other customary operating expenses.
Stock-Based Compensation	Stock-Based Compensation We account for our stock-based compensation plans following the provisions of FASB ASC 718, “Compensation — Stock Compensation” (“ASC 718”). In accordance with ASC 718, we use the Black-Scholes valuation model for estimating the fair value of stock option grants and shares purchased under our Employee Stock Purchase Plan. We measure compensation for restricted stock awards and restricted stock units at fair value on the grant date based on the number of shares expected to vest and the quoted market price of our common stock on the grant date. We recognize compensation cost for all awards in operations, net of estimated forfeitures, on a straight-line basis over the requisite service period for each separately vesting portion of the award.
Foreign Currency Transactions	Foreign Currency Transactions For the Company’s foreign subsidiaries that use a currency other than the U.S. dollar as their functional currency, the assets and liabilities are translated at exchange rates in effect at the balance sheet date, and revenues and expenses are translated at the weighted average exchange rate for the period. The effects of these translation adjustments are reported in accumulated other comprehensive income. Gains and losses arising from transactions denominated in a currency other than the functional currency of the entity involved are included in operating income. No amounts were reclassified out of accumulated other comprehensive income in fiscal 2023 .
Advertising and Promotional Costs	Advertising and Promotional Cost We expense advertising and promotional costs as incurred and include them in selling, general and administrative expenses in the accompanying Consolidated Statements of Operations. We net amounts received by us under our co-op assistance programs from our manufacturers against the related advertising expenses. Total advertising and promotional expenses approximated $ 14.8 million, $ 25.8 million and $ 36.0 million, net of related co-op assistance, which was not material to the consolidated financial statements, for the fiscal years ended September 30, 2021, 2022, and 2023 , respectively.
Income Taxes	Income Taxes We account for income taxes in accordance with FASB ASC 740, “Income Taxes” (“ASC 740”). Under ASC 740, we recognize deferred tax assets and liabilities for the future tax consequences attributable to temporary differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. We measure deferred tax assets and liabilities using enacted tax rates expected to apply to taxable income in the years in which we expect those temporary differences to be recovered or settled. We record valuation allowances to reduce our deferred tax assets to the amount expected to be realized by considering all available positive and negative evidence.
Concentrations of Credit Risk	Concentrations of Credit Risk Financial instruments, which potentially subject us to concentrations of credit risk, consist principally of cash and cash equivalents and accounts receivable. Concentrations of credit risk with respect to our cash and cash equivalents are limited primarily to amounts held with financial institutions. Concentrations of credit risk arising from our receivables are limited primarily to amounts due from manufacturers and financial institutions.
Use of Estimates and Assumptions	Use of Estimates and Assumptions The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting periods. Significant estimates made by us in the accompanying consolidated financial statements include valuation allowances, valuation of goodwill and intangible assets, valuation of long-lived assets, and valuation of contingent consideration liabilities. Actual results could differ materially from those estimates.
Segment Reporting	Segment Reporting Effective May 2, 2021, our reportable segments changed as a result of the Company’s acquisition of Cruisers Yachts, which changed management’s reporting structure and operating activities. We now report our operations through two reportable segments: Retail Operations and Product Manufacturing. The change in reportable segments had no impact on the Company’s previously reported historical consolidated financial statements. Where applicable, all prior periods presented have been revised to conform to the change in reportable segments. See Note 21.
New Accounting Pronouncements	In September 2022, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2022-04 — Liabilities — Supplier Finance Programs (Subtopic 405-50): Disclosure of Supplier Finance Program Obligations which is intended to enhance the transparency surrounding the use of supplier finance programs. The guidance requires companies that use supplier finance programs to make annual disclosures about the program’s key terms, the balance sheet presentation of related amounts, the confirmed amount outstanding at the end of the period and associated roll forward information. Only the amount outstanding at the end of the period must be disclosed in interim periods. The guidance does not affect the recognition, measurement or financial statement presentation of supplier finance program obligations. The guidance becomes effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years, except for the roll forward information, which is effective for fiscal years beginning after December 15, 2023. We plan to adopt ASU 2022-04 in fiscal 2024. We expect the adoption of ASU 2022-04 will have an immaterial impact on the Company’s consolidated financial statements.

Significant Accounting Polici_3

Significant Accounting Policies (Tables)	12 Months Ended
Significant Accounting Policies (Tables)	Sep. 30, 2023
Estimated Life of Property and Equipment	Useful lives for purposes of computing depreciation are as follows: Years Buildings and improvements 5 - 40 Machinery and equipment 3 - 10 Furniture and fixtures 5 - 10 Vehicles 3 - 5
Summary of Percentage on Timing of Revenue Recognition by Reportable Segment	The following table sets forth percentages on the timing of revenue recognition by reportable segment for the fiscal years ended September 30, Retail Operations Product Manufacturing 2021 2022 2023 2021 2022 2023 Goods and services transferred at a point in time 91.6 % 90.9 % 87.2 % 100.0 % 100.0 % 100.0 % Goods and services transferred over time 8.4 % 9.1 % 12.8 % — — — Revenue 100.0 % 100.0 % 100.0 % 100.0 % 100.0 % 100.0 %
Summary of Maintenance, Repair, Storage, Rental, Charter Services and Parts and Accessories Revenue for Retail Operations by Location Type	The following table sets forth our maintenance, repair, storage, rental, charter services and parts and accessories revenue for our Retail Operations by location type. 2021 2022 2023 (Amounts in thousands) Marina/storage locations $ 127,558 $ 143,189 $ 265,847 Locations without marina/storage 82,934 103,102 114,353 Maintenance, repair, storage, rental, charter services, parts and accessories revenue $ 210,492 $ 246,291 $ 380,200
Product Concentration Risk [Member]
Summary of Revenue Disaggregated Into Categories Depict the Nature, Amount, Timing, and Uncertainty of Revenue and Cash Flows Affected by Economic Factor	The following tables set forth our revenue disaggregated into categories that depict the nature, amount, timing, and uncertainty of revenue and cash flows affected by economic factors for the fiscal years ended September 30, 2023 Retail Operations Product Manufacturing Total New boat sales 67.3 % 95.8 % 68.7 % Used boat sales 8.3 % 2.8 % 7.9 % Maintenance and repair services 4.6 % — 4.4 % Storage and charter rentals 7.1 % — 6.7 % Finance and insurance products 2.9 % — 2.8 % Parts and accessories 4.9 % 0.8 % 4.7 % Brokerage sales 4.9 % 0.6 % 4.8 % Revenue 100.0 % 100.0 % 100.0 % 2022 Retail Operations Product Manufacturing Total New boat sales 71.9 % 95.0 % 73.2 % Used boat sales 7.7 % 3.8 % 7.3 % Maintenance and repair services 4.7 % — 4.1 % Storage and charter rentals 3.0 % — 3.3 % Finance and insurance products 3.1 % — 3.0 % Parts and accessories 3.5 % 0.7 % 3.3 % Brokerage sales 6.1 % 0.5 % 5.8 % Revenue 100.0 % 100.0 % 100.0 % 2021 Retail Operations Product Manufacturing Total New boat sales 70.3 % 98.8 % 70.5 % Used boat sales 11.0 % — 10.9 % Maintenance and repair services 4.1 % — 4.1 % Storage and charter rentals 3.0 % — 3.0 % Finance and insurance products 2.7 % — 2.7 % Parts and accessories 3.2 % 1.2 % 3.2 % Brokerage sales 5.7 % — 5.6 % Revenue 100.0 % 100.0 % 100.0 %

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
Fair Value Measurements (Tables)	Sep. 30, 2023
Fair Value Disclosures [Abstract]
Summary of Financial Assets and Liabilities Measured at Fair Value	The following tables summarize the Company’s financial assets and liabilities measured at fair value in the accompanying Consolidated Balance Sheets as of September 30, 2023 Level 1 Level 2 Level 3 Total (Amounts in thousands) Assets: Interest rate swap contract $ — $ 1,409 $ — $ 1,409 Liabilities: Contingent consideration liabilities $ — $ — $ 86,059 $ 86,059 2022 Level 1 Level 2 Level 3 Total (Amounts in thousands) Assets: Interest rate swap contract $ — $ 1,528 $ — $ 1,528 Liabilities: Contingent consideration liabilities $ — $ — $ 15,207 $ 15,207
Summary of Ranges for Significant Quantitative Unobservable inputs Utilized in Fair Value Measurements	The following table summarizes ranges for significant quantitative unobservable inputs we utilized in our fair value measurements with respect to contingent consideration liabilities: Unobservable Input: September 30, 2023 Earnout projected growth (including net operating income) 23 % - 25 % Discount rate 11.0 %
Summary of Changes in Fair Value of Contingent Consideration Liabilities Which Reflect Level 3 Inputs	The following table sets forth the changes in fair value of our contingent consideration liabilities, which reflect Level 3 inputs, for the fiscal the years ended September 30, 2022 and 2023: Contingent Consideration Liabilities (Amounts in thousands) Balance as of September 30, 2021 $ 12,364 Additions from business acquisitions 7,350 Settlement of contingent consideration liabilities ( 5,500 ) Change in fair value and net present value of contingency 993 Balance as of September 30, 2022 $ 15,207 Additions from business acquisitions 77,380 Settlement of contingent consideration liabilities ( 8,900 ) Change in fair value and net present value of contingency 2,372 Balance as of September 30, 2023 $ 86,059
Summary of Carrying Value and Fair Value of Mortgage Facilities and Term Loan	The following table summarizes the carrying value and fair value of our mortgage facilities and term loan as of September 30, 2022 2023 Fair Value Carrying Value Fair Value Carrying Value (Amounts in thousands) Mortgage facility payable to Flagship Bank $ 6,355 $ 6,403 $ 6,027 $ 5,907 Mortgage facility payable to Seacoast National Bank 16,681 17,098 17,223 16,735 Mortgage facility payable to Hancock Whitney Bank 24,977 25,192 24,171 23,279 Term loan payable to M&T Bank — — 379,650 377,500

Accounts Receivable (Tables)

Accounts Receivable (Tables)	12 Months Ended
Accounts Receivable (Tables)	Sep. 30, 2023
Receivables [Abstract]
Accounts Receivable, Net	Accounts receivable, net consisted of the following as of September 30, 2022 2023 (Amounts in thousands) Trade receivables, net $ 41,215 $ 70,752 Amounts due from manufacturers 7,826 13,555 Other receivables 1,246 1,473 Accounts receivable, net $ 50,287 $ 85,780

Inventories (Tables)

Inventories (Tables)	12 Months Ended
Inventories (Tables)	Sep. 30, 2023
Inventory Disclosure [Abstract]
Summary of Inventories	Inventories consisted of the following as of September 30, 2022 2023 (Amounts in thousands) New and used boats, motors, and trailers $ 272,422 $ 625,287 In transit inventory and deposits 117,268 115,879 Parts, accessories, and other 17,143 18,712 Work-in-process 21,691 22,340 Raw materials 25,835 30,612 Inventories $ 454,359 $ 812,830

Property and Equipment (Tables)

Property and Equipment (Tables)	12 Months Ended
Property and Equipment (Tables)	Sep. 30, 2023
Property Plant And Equipment [Abstract]
Schedule of Property and Equipment, Net	Property and equipment, net consisted of the following as of September 30, 2022 2023 (Amounts in thousands) Land $ 80,312 $ 124,605 Buildings and improvements 179,162 413,688 Machinery and equipment 70,445 100,517 Furniture and fixtures 6,523 8,153 Vehicles 20,843 24,848 Gross property and equipment 357,285 671,811 Less: accumulated depreciation and amortization ( 111,274 ) ( 144,259 ) Property and equipment, net $ 246,011 $ 527,552

Leases (Tables)

Leases (Tables)	12 Months Ended
Leases (Tables)	Sep. 30, 2023
Leases [Abstract]
Summary of Maturities of Lease Liabilities by Fiscal Year	As of September 30, 2023, maturities of lease liabilities by fiscal year are summarized as follows: (Amounts in thousands) 2024 $ 16,182 2025 15,997 2026 14,603 2027 14,061 2028 13,223 Thereafter 261,258 Total lease payments 335,324 Less: interest ( 201,465 ) Present value of lease liabilities $ 133,859
Schedule of Supplemental Cash Flow Information Related to Leases	The following table sets forth supplemental cash flow information related to leases for the fiscal years ended September 30, 2021 2022 2023 (Amounts in thousands) Cash paid for amounts included in the measurement of Operating cash flows from operating leases $ 16,917 $ 16,039 $ 17,474 Right-of-use assets obtained in exchange for lease Operating leases $ 74,097 $ 4,588 $ 42,488
Summary of Operating Lease Income and Other Income	The following table summarizes the amount of operating lease income and other income included in total revenues in the accompanying consolidated statements of operations: 2022 2023 (Amounts in thousands) Operating leases: Operating lease income $ 1,285 $ 9,780 Variable lease income 843 526 Total rental income $ 2,128 $ 10,306
Summary of Future Minimum Payments Received	As of September 30, 2023, future minimum payments to be received during the next five years and thereafter are as follows: (Amounts in thousands) 2024 $ 8,553 2025 5,600 2026 4,132 2027 3,113 2028 1,506 Thereafter 42 Total lease payments $ 22,946

Goodwill Other Intangible Ass_2

Goodwill Other Intangible Assets and Other Long Term Assets (Tables)	12 Months Ended
	Sep. 30, 2023
Summary of Changes in Carrying Amount of Goodwill by Reportable Segment	The following table sets forth the changes in carrying amount of goodwill by reportable segment for the fiscal years ended September 30, 2022 and 2023: Retail Operations Product Manufacturing Total (Amounts in thousands) Balance as of September 30, 2021 $ 155,429 $ 40,134 $ 195,563 Goodwill acquired 14,035 28,900 42,935 Foreign currency translation ( 2,913 ) — ( 2,913 ) Balance as of September 30, 2022 $ 166,551 $ 69,034 $ 235,585 Goodwill acquired 321,166 — 321,166 Foreign currency translation 3,069 — 3,069 Balance as of September 30, 2023 $ 490,786 $ 69,034 $ 559,820
Summary of Other Intangible Assets, Net	Other intangible assets, net, at September 30, consisted of the following: 2022 2023 (Amounts in thousands) Trade names — indefinite-lived $ 7,736 $ 17,712 Other intangible assets, primarily customer relationships 5,948 25,929 13,684 43,641 Less: accumulated amortization ( 2,798 ) ( 3,928 ) Intangible assets, net $ 10,886 $ 39,713
Schedule of Aggregate Amortization Expense	The following table sets forth the aggregate amortization expense for each of the five succeeding fiscal years: (Amounts in thousands) 2024 $ 7,708 2025 7,261 2026 5,083 2027 3,698 2028 15 Total $ 23,765
IGY Marinas [Member]
Summary of Estimated Fair Value of Assets Acquired and Liabilities Assumed at Acquisition Date	The following table summarizes the consideration paid for IGY Marinas and the allocation of the purchase consideration to the estimated fair value of the assets acquired and liabilities assumed at the acquisition date. (Amounts in thousands) Consideration: Cash purchase price and net working capital adjustments, net of cash acquired of $ 28,075 $ 482,997 Contingent consideration arrangement 67,700 Noncontrolling interests in consolidated subsidiaries 2,208 Fair value of total consideration transferred $ 552,905 Recognized amounts of identifiable assets acquired and liabilities assumed: Net working capital, net of cash acquired of $ 28,075 ( 22,880 ) Property and equipment 240,190 Operating lease right-of-use assets 39,720 Intangible assets 30,446 Equity method investments 14,098 Other long-term assets 6,973 Operating lease liabilities ( 29,416 ) Other liabilities ( 1,301 ) Deferred tax liabilities, net ( 18,467 ) Total identifiable net assets acquired: 259,363 Goodwill $ 293,542 Total $ 552,905
Cruisers Yachts [Member]
Summary of Estimated Fair Value of Assets Acquired and Liabilities Assumed at Acquisition Date	The following table summarizes the consideration paid for Cruisers Yachts and the allocation of the purchase consideration to the estimated fair value of the assets acquired and liabilities assumed at the acquisition date. (Amounts in thousands) Consideration: Cash purchase price and net working capital adjustments, net of cash acquired of $ 5,993 $ 61,448 Recognized amounts of identifiable assets acquired and liabilities assumed: Current assets, net of cash acquired of $ 5,993 $ 29,869 Property and equipment 12,126 Intangible assets 4,602 Current liabilities ( 25,283 ) Total identifiable net assets acquired: 21,314 Goodwill $ 40,134 Total $ 61,448

Accrued Expenses (Table)

Accrued Expenses (Table)	12 Months Ended
Accrued Expenses (Table)	Sep. 30, 2023
Accounts Payable And Accrued Liabilities Current [Abstract]
Summary of Accrued Expenses	Accrued expenses consisted of the following as of September 30, 2022 2023 (Amounts in thousands) Payroll accruals $ 41,413 $ 43,273 Customer and storage accruals 18,095 28,829 Sales and other taxes payable 5,930 9,673 Other accruals 23,964 30,971 Accrued expenses $ 89,402 $ 112,746

Short-Term Borrowings and Lon_2

Short-Term Borrowings and Long-Term Debt (Tables)	12 Months Ended
Short-Term Borrowings and Long-Term Debt (Tables)	Sep. 30, 2023
Debt Disclosure [Abstract]
Schedule of Long-term Debt	The below table summarizes the Company’s long-term debt. September 30, 2023 (Amounts in thousands) Mortgage facility payable to Flagship Bank bearing interest at 7.50 % (prime minus 100 basis points with a floor of 2.00 %). Requires monthly principal and interest payments with a balloon payment of approximately $ 4.0 million due August 2027 . $ 5,907 Mortgage facility payable to Seacoast National Bank bearing interest at 7.88 % (SOFR plus 220 basis points). Requires monthly interest payments for the first year and then monthly principal and interest payments with a balloon payment of approximately $ 10.0 million due September 2031 . 16,735 Mortgage facility payable to Hancock Whitney Bank bearing interest at 7.88 % (prime minus 62.5 basis points with a floor of 2.25 %). Requires monthly principal and interest payments with a balloon payment of approximately $ 15.5 million due November 2027 . 50 % of the outstanding borrowings are hedged with an interest rate swap contract with a fixed rate of 3.20 %. 23,279 Revolving mortgage facility with FineMark National Bank & Trust bearing interest at 8.25 % (prime minus 25 basis points with a floor of 3.00 %). Facility matures in October 2027 . Current available borrowings under the facility were approximately $ 22.7 million at September 30, 2023. — Term loan payable to M&T Bank bearing interest at 6.83 % as of September 30, August 2027 . 377,500 Loan payable to TRANSPORT S.a.s di Taula Vittorio & C. bearing interest 7.08 %. Requires quarterly principal and interest payments. December 2030 . 1,478 Total long-term debt 424,899 Less: current portion ( 33,767 ) Less: unamortized portion of debt issuance costs ( 1,901 ) Long-term debt, net current portion and unamortized debt issuance costs $ 389,231 September 30, 2022 (Amounts in thousands) Mortgage facility payable to Flagship Bank bearing interest at 5.25 % (prime minus 100 basis points with a floor of 2.00 %). Requires monthly principal and interest payments with a balloon payment of approximately $ 4.0 million due August 2027 . $ 6,403 Mortgage facility payable to Seacoast National Bank bearing interest at 5.63 % (greater of 3.00% or prime minus 62.5 basis points ). Requires monthly interest payments for the first year and then monthly principal and interest payments with a balloon payment of approximately $ 6.0 million due September 2031 . 17,098 Mortgage facility payable to Hancock Whitney Bank bearing interest at 5.63 % (prime minus 62.5 basis points with a floor of 2.25 %). Requires monthly principal and interest payments with a balloon payment of approximately $ 15.5 million due November 2027 . 50 % of the outstanding borrowings are hedged with an interest rate swap contract with a fixed rate of 3.20 %. 25,192 Revolving mortgage facility with FineMark National Bank & Trust bearing interest at 6.00 % (prime minus 25 basis points with a floor of 3.00 %). Facility matures in October 2027. Current available borrowings under the facility were approximately $ 24.5 million at September 30, 2022. — Total long-term debt 48,693 Less: current portion ( 2,882 ) Less: unamortized portion of debt issuance costs ( 510 ) Long-term debt, net current portion and unamortized debt issuance costs $ 45,301
Summary of Aggregate Maturities of Long Term Debt	As of September 30, 2023, the aggregate maturities of long-term debt by fiscal year are summarized as follows: (Amounts in thousands) 2024 $ 33,767 2025 33,767 2026 33,767 2027 295,190 2028 16,983 Thereafter 11,425 Total long-term debt $ 424,899

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
Income Taxes (Tables)	Sep. 30, 2023
Income Tax Disclosure [Abstract]
Summary of Income Before Income Tax Provision	Income before income tax provision consisted of the following components for the fiscal years ended September 30, 2021 2022 2023 (Amounts in thousands) Income before income tax provision: United States $ 202,643 $ 254,052 $ 130,535 Other 3,151 7,869 16,900 Total $ 205,794 $ 261,921 $ 147,435
Components of Income Taxes Provision	The components of our provision from income taxes consisted of the following for the fiscal years ended September 30, 2021 2022 2023 (Amounts in thousands) Current provision: Federal $ 38,028 $ 49,380 $ 9,315 Foreign 1,516 1,739 3,204 State 6,527 11,004 2,307 Total current provision $ 46,071 $ 62,123 $ 14,826 Deferred provision: Federal $ 4,201 $ 1,650 $ 18,723 Foreign — — — State 543 159 4,408 Total deferred provision 4,744 1,809 23,131 Total income tax provision $ 50,815 $ 63,932 $ 37,957
Summary of Tax Rates	Below is a reconciliation of the statutory federal income tax rate to our effective tax rate for the fiscal years ended September 30, 2021 2022 2023 Federal tax provision 21.0 % 21.0 % 21.0 % State taxes, net of federal benefit 3.7 % 3.4 % 3.6 % Stock-based compensation ( 0.7 )% ( 0.6 )% ( 0.2 )% Valuation allowance — — — Foreign rate differential 0.1 % — 0.2 % US tax on foreign earnings — — 1.4 % Equity Investment — — ( 0.9 )% Other 0.6 % 0.6 % 0.6 % Effective tax rate 24.7 % 24.4 % 25.7 %
Components of Deferred Tax Assets	Deferred income taxes reflect the impact of temporary differences between the amount of assets and liabilities recognized for financial reporting purposes and such amounts recognized for income tax purposes. The tax effects of these temporary differences representing the components of deferred tax assets as of September 30, 2022 2023 (Amounts in thousands) Deferred tax assets: Inventories $ 831 $ 1,010 Operating lease liabilities 23,323 31,103 Accrued expenses 889 1,069 Stock-based compensation 4,147 5,508 Interest deductions — 2,413 US tax effect of foreign taxes — 4,908 Tax loss carryforwards 599 2,919 Other 1,154 1,826 Valuation Allowance — ( 556 ) Total long-term deferred tax assets $ 30,943 $ 50,200 Deferred tax liabilities: Depreciation and amortization ( 22,369 ) ( 69,904 ) Operating lease right-of-use assets ( 22,733 ) ( 31,392 ) Equity method investments — ( 3,835 ) Other ( 1,242 ) ( 1,996 ) Total long-term deferred tax liabilities $ ( 46,344 ) $ ( 107,127 ) Net deferred tax liabilities $ ( 15,401 ) $ ( 56,927 )
Summary of Reconciliation of Unrecognized Tax Benefits	The reconciliation of the total amount recorded for unrecognized tax benefits at the beginning and end of the fiscal years ended September 30, 2022 and 2023 is as follows: 2022 2023 (Amounts in thousands) Unrecognized tax benefits at the beginning of the year $ — $ — Increases in tax positions for prior years — 5,837 Decreases in tax positions for prior years — ( 4 ) Unrecognized tax benefits at the end of the year $ — $ 5,833

The Incentive Stock Plans (Tabl

The Incentive Stock Plans (Tables)	12 Months Ended
The Incentive Stock Plans (Tables)	Sep. 30, 2023
Share-Based Payment Arrangement [Abstract]
Incentive Stock Plans Activity	The following table summarizes activity from our incentive stock plans from September 30, 2022 through September 30, 2023: Shares Options Aggregate Weighted Weighted Balance as of September 30, 2022 1,536,094 62,750 $ 893 $ 17.62 2.3 Shares authorized 1,300,000 — — Options granted ( 5,000 ) 5,000 31.20 2.0 Options cancelled/forfeited/expired 10,000 ( 10,000 ) 7.48 Options exercised — ( 3,000 ) 13.06 Restricted stock awards granted ( 825,573 ) — — Restricted stock awards forfeited 20,445 — — Additional shares of stock issued ( 51,378 ) — — Balance as of September 30, 2023 1,984,588 54,750 $ 746 $ 20.96 2.5 Exercisable as of September 30, 2023 51,416 $ 705 $ 20.30 2.1

Employee Stock Purchase Plan (T

Employee Stock Purchase Plan (Tables)	12 Months Ended
Employee Stock Purchase Plan (Tables)	Sep. 30, 2023
Share-Based Payment Arrangement [Abstract]
Weighted Average Assumptions of Employee Stock Purchase Plan	The following are the weighted-average assumptions used for the fiscal years ended September 30, 2021 2022 2023 Dividend yield 0.0 % 0.0 % 0.0 % Risk-free interest rate 0.1 % 0.7 % 4.4 % Volatility 69.6 % 49.0 % 47.1 % Expected life Six months Six months Six months

Restricted Stock Awards (Tables

Restricted Stock Awards (Tables)	12 Months Ended
Restricted Stock Awards (Tables)	Sep. 30, 2023
Share-Based Payment Arrangement [Abstract]
Restricted Stock Award Activity	The following table summarizes restricted stock award activity from September 30, 2022 through September 30, 2023: Shares/ Weighted Non-vested balance as of September 30, 2022 934,517 $ 35.23 Changes during the period: Awards granted 825,573 $ 32.16 Awards vested ( 398,494 ) $ 29.75 Awards forfeited ( 20,445 ) $ 31.98 Non-vested balance as of September 30, 2023 1,341,151 $ 35.02

Net Income Per Share (Tables)

Net Income Per Share (Tables)	12 Months Ended
Net Income Per Share (Tables)	Sep. 30, 2023
Earnings Per Share [Abstract]
Basic and Diluted Net Income Per Share	The following table presents shares used in the calculation of basic and diluted net income per share for the fiscal years ended September 30, 2021 2022 2023 Weighted average common shares outstanding used in 22,010,130 21,706,225 21,852,425 Effect of dilutive options and non-vested restricted 849,368 692,984 576,956 Weighted average common and common equivalent 22,859,498 22,399,209 22,429,381

Segment Information (Tables)

Segment Information (Tables)	12 Months Ended
Segment Information (Tables)	Sep. 30, 2023
Segment Reporting [Abstract]
Summary of Depreciation and Amortization of Reportable Segments	The following table sets forth depreciation and amortization for each of the Company’s reportable segments for the fiscal years ended September 30, 2021 2022 2023 (Amounts in thousands) Depreciation: Retail Operations $ 13,821 $ 16,577 $ 28,172 Product Manufacturing 32 131 4,138 Depreciation $ 13,853 $ 16,708 $ 32,310 Amortization: Retail Operations $ 1,429 $ 857 $ 7,096 Product Manufacturing 324 1,853 1,626 Amortization $ 1,753 $ 2,710 $ 8,722
Summary of Revenue and Income from Operations of Reportable Segments	The following table sets forth revenue and income from operations for each of the Company’s reportable segments for the fiscal years ended September 30, 2021 2022 2023 (Amounts in thousands) Revenue: Retail Operations $ 2,043,613 $ 2,212,922 $ 2,294,362 Product Manufacturing 44,000 176,273 222,289 Elimination of intersegment revenue ( 24,356 ) ( 81,097 ) ( 121,945 ) Revenue $ 2,063,257 $ 2,308,098 $ 2,394,706 Income from operations: Retail Operations $ 207,034 $ 249,186 $ 192,487 Product Manufacturing 6,940 20,258 23,420 Intersegment adjustments ( 4,515 ) ( 4,240 ) ( 15,105 ) Income from operations $ 209,459 $ 265,204 $ 200,802

Company Background and Basis _2

Company Background and Basis of Presentation - Additional Information (Detail)	12 Months Ended
	Sep. 30, 2023 Location	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2023 RetailDealership	Sep. 30, 2023 Marina
Concentration Risk [Line Items]
Number of retail locations	130			79	66
Product Concentration Risk [Member] \| Sales [Member]
Concentration Risk [Line Items]
Revenue percentage from sale of boats	100%	100%	100%
Product Concentration Risk [Member] \| Brunswick [Member] \| Sales [Member]
Concentration Risk [Line Items]
Revenue percentage from sale of boats	24%
Product Concentration Risk [Member] \| Brunswick Sea Ray Boat [Member] \| Brunswick [Member] \| Sales [Member]
Concentration Risk [Line Items]
Revenue percentage from sale of boats	11%
Product Concentration Risk [Member] \| Brunswick Boston Whaler Boats [Member] \| Brunswick [Member] \| Sales [Member]
Concentration Risk [Line Items]
Revenue percentage from sale of boats	11%
Product Concentration Risk [Member] \| Azimut Benetti Groups and Yachts \| Sales [Member]
Concentration Risk [Line Items]
Revenue percentage from sale of boats	11%
Geographic Concentration Risk [Member] \| Sales [Member] \| Florida [Member]
Concentration Risk [Line Items]
Revenue percentage from sale of boats	53%	51%	50%

Significant Accounting Polici_4

Significant Accounting Policies - Additional Information (Detail)	12 Months Ended
	Sep. 30, 2023 USD ($) Segment	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)
Accounting Policies [Abstract]
Goodwill and other intangible assets increased from acquisitions	$ 353,100,000	$ 45,300,000
Business acquisition, goodwill for tax purposes	216,000,000	10,500,000
Impairment charges	0
Contract assets recorded in prepaid expenses and other current assets	$ 5,300,000	5,900,000
Revenue remaining obligation description	As a practical expedient, because repair and maintenance service contracts have an original duration of one year or less, we do not consider the time value of money, and we do not disclose estimated revenue expected to be recognized in the future for performance obligations that are unsatisfied (or partially unsatisfied) at the end of the reporting period or when we expect to recognize such revenue.
Contract liabilities recognized in revenue		126,100,000	$ 94,900,000
Reclassified out of accumulated other comprehensive income	$ 0
Total advertising and promotional expenses	$ 36,000,000	$ 25,800,000	$ 14,800,000
Number of reporting segment \| Segment	2

Significant Accounting Polici_5

Significant Accounting Policies - Estimated Life of Property and Equipment (Detail)	Sep. 30, 2023
Buildings and Improvements [Member] \| Minimum [Member]
Property Plant And Equipment [Line Items]
Property and equipment useful life	5 years
Buildings and Improvements [Member] \| Maximum [Member]
Property Plant And Equipment [Line Items]
Property and equipment useful life	40 years
Machinery and Equipment [Member] \| Minimum [Member]
Property Plant And Equipment [Line Items]
Property and equipment useful life	3 years
Machinery and Equipment [Member] \| Maximum [Member]
Property Plant And Equipment [Line Items]
Property and equipment useful life	10 years
Furniture and Fixtures [Member] \| Minimum [Member]
Property Plant And Equipment [Line Items]
Property and equipment useful life	5 years
Furniture and Fixtures [Member] \| Maximum [Member]
Property Plant And Equipment [Line Items]
Property and equipment useful life	10 years
Vehicles [Member] \| Minimum [Member]
Property Plant And Equipment [Line Items]
Property and equipment useful life	3 years
Vehicles [Member] \| Maximum [Member]
Property Plant And Equipment [Line Items]
Property and equipment useful life	5 years

Significant Accounting Polici_6

Significant Accounting Policies - Summary of Percentage on Timing of Revenue Recognition by Reportable Segment (Details)	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Retail Operations [Member]
Disaggregation Of Revenue [Line Items]
Total Revenue	100%	100%	100%
Product Manufacturing [Member]
Disaggregation Of Revenue [Line Items]
Total Revenue	100%	100%	100%
Goods and Services Transferred at a Point in Time [Member] \| Retail Operations [Member]
Disaggregation Of Revenue [Line Items]
Total Revenue	87.20%	90.90%	91.60%
Goods and Services Transferred at a Point in Time [Member] \| Product Manufacturing [Member]
Disaggregation Of Revenue [Line Items]
Total Revenue	100%	100%	100%
Goods and Services Transferred Over Time [Member] \| Retail Operations [Member]
Disaggregation Of Revenue [Line Items]
Total Revenue	12.80%	9.10%	8.40%

Significant Accounting Polici_7

Significant Accounting Policies - Summary of Revenue Disaggregated Into Categories Depict the Nature, Amount, Timing, and Uncertainty of Revenue and Cash Flows Affected by Economic Factor (Detail) - Product Concentration Risk [Member] - Sales [Member]	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	100%	100%	100%
Retail Operations [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	100%	100%	100%
Product Manufacturing [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	100%	100%	100%
New Boat Sales [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	68.70%	73.20%	70.50%
New Boat Sales [Member] \| Retail Operations [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	67.30%	71.90%	70.30%
New Boat Sales [Member] \| Product Manufacturing [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	95.80%	95%	98.80%
Used Boat Sales [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	7.90%	7.30%	10.90%
Used Boat Sales [Member] \| Retail Operations [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	8.30%	7.70%	11%
Used Boat Sales [Member] \| Product Manufacturing [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	2.80%	3.80%
Maintenance and Repair Services [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	4.40%	4.10%	4.10%
Maintenance and Repair Services [Member] \| Retail Operations [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	4.60%	4.70%	4.10%
Storage and Charter Rentals [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	6.70%	3.30%	3%
Storage and Charter Rentals [Member] \| Retail Operations [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	7.10%	3%	3%
Finance and Insurance Products [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	2.80%	3%	2.70%
Finance and Insurance Products [Member] \| Retail Operations [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	2.90%	3.10%	2.70%
Parts and Accessories [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	4.70%	3.30%	3.20%
Parts and Accessories [Member] \| Retail Operations [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	4.90%	3.50%	3.20%
Parts and Accessories [Member] \| Product Manufacturing [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	0.80%	0.70%	1.20%
Brokerage Sales [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	4.80%	5.80%	5.60%
Brokerage Sales [Member] \| Retail Operations [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	4.90%	6.10%	5.70%
Brokerage Sales [Member] \| Product Manufacturing [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	0.60%	0.50%

Significant Accounting Polici_8

Significant Accounting Policies - Summary of Maintenance, Repair, Storage, Rental, Charter Services and Parts and Accessories Revenue for Retail Operations by Location Type (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Disaggregation of Revenue [Line Items]
Revenue	$ 2,394,706	$ 2,308,098	$ 2,063,257
Retail Operations [Member] \| Maintenance, Repair, Storage, Rental, Charter Services, Parts and Accessories Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue	380,200	246,291	210,492
Retail Operations [Member] \| Maintenance, Repair, Storage, Rental, Charter Services, Parts and Accessories Revenue [Member] \| Marina/Storage Locations [Member]
Disaggregation of Revenue [Line Items]
Revenue	265,847	143,189	127,558
Retail Operations [Member] \| Maintenance, Repair, Storage, Rental, Charter Services, Parts and Accessories Revenue [Member] \| Locations Without Marina/Storage [Member]
Disaggregation of Revenue [Line Items]
Revenue	$ 114,353	$ 103,102	$ 82,934

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Financial Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Sep. 30, 2022
Assets:
Interest rate swap contract	$ 1,409	$ 1,528
Liabilities:
Contingent consideration liabilities	86,059	15,207
Level 2 [Member]
Assets:
Interest rate swap contract	1,409	1,528
Level 3 [Member]
Liabilities:
Contingent consideration liabilities	$ 86,059	$ 15,207

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Details) - USD ($)	Sep. 30, 2023	Sep. 30, 2022
Fair Value Disclosures [Abstract]
Fair value, assets, level 1 to level 2 transfers	$ 0	$ 0
Fair value, assets, level 2 to level 1 transfers	0	0
Fair value, assets, level 2 to level 3 transfers	0	0
Fair value, assets, level 3 to level 2 transfers	0	0
Fair value, assets, level 1 to level 3 transfers	0	0
Fair value, assets, level 3 to level 1 transfers	0	0
Fair value, liabilities, level 1 to level 2 transfers	0	0
Fair value, liabilities, level 2 to level 1 transfers	0	0
Fair value, liabilities, level 2 to level 3 transfers	0	0
Fair value, liabilities, level 3 to level 2 transfers	0	0
Fair value, liabilities, level 1 to level 3 transfers	0	0
Fair value, liabilities, level 3 to level 1 transfers	0	0
Contingent consideration liabilities	$ 80,700,000	$ 6,400,000

Fair Value Measurements - Sum_2

Fair Value Measurements - Summary of Ranges for Significant Quantitative Unobservable Inputs Utilized in Fair Value Measurements (Details)	12 Months Ended
	Sep. 30, 2023
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Discount rate	11%
Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Earnout projected growth (including net operating income)	25%
Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Earnout projected growth (including net operating income)	23%

Fair Value Measurements - Sum_3

Fair Value Measurements - Summary of Changes in Fair Value of Contingent Consideration Liabilities Which Reflect Level 3 Inputs (Details) - Contingent Consideration Liabilities [Member] - Level 3 [Member] - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Beginning Balance	$ 15,207	$ 12,364
Additions from business acquisitions	77,380	7,350
Settlement of contingent consideration liabilities	(8,900)	(5,500)
Change in fair value and net present value of contingency	2,372	993
Ending Balance	$ 86,059	$ 15,207

Fair Value Measurements - Sum_4

Fair Value Measurements - Summary of Carrying Value and Fair Value of Mortgage Facilities and Term Loan (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Sep. 30, 2022
Fair Value [Member] \| Mortgage Facility Payable to Flagship Bank [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Mortgage facility and term loan payable	$ 6,027	$ 6,355
Fair Value [Member] \| Mortgage Facility Payable to Seacoast National Bank [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Mortgage facility and term loan payable	17,223	16,681
Fair Value [Member] \| Mortgage Facility Payable to Hancock Whitney Bank [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Mortgage facility and term loan payable	24,171	24,977
Fair Value [Member] \| Term Loan Payable to M&T Bank [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Mortgage facility and term loan payable	379,650
Carrying Value [Member] \| Mortgage Facility Payable to Flagship Bank [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Mortgage facility and term loan payable	5,907	6,403
Carrying Value [Member] \| Mortgage Facility Payable to Seacoast National Bank [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Mortgage facility and term loan payable	16,735	17,098
Carrying Value [Member] \| Mortgage Facility Payable to Hancock Whitney Bank [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Mortgage facility and term loan payable	23,279	$ 25,192
Carrying Value [Member] \| Term Loan Payable to M&T Bank [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Mortgage facility and term loan payable	$ 377,500

Accounts Receivable - Additiona

Accounts Receivable - Additional Information (Detail)	12 Months Ended
Accounts Receivable - Additional Information (Detail)	Sep. 30, 2023
Receivables [Abstract]
Receivable Collection Period	30 days

Accounts Receivable - Accounts

Accounts Receivable - Accounts Receivable, Net (Detail) - USD ($) $ in Thousands	Sep. 30, 2023	Sep. 30, 2022
Receivables [Abstract]
Trade receivables, net	$ 70,752	$ 41,215
Amounts due from manufacturers	13,555	7,826
Other receivables	1,473	1,246
Accounts receivable, net	$ 85,780	$ 50,287

Inventories - Summary of Invent

Inventories - Summary of Inventories (Detail) - USD ($) $ in Thousands	Sep. 30, 2023	Sep. 30, 2022
Inventory [Line Items]
Inventories	$ 812,830	$ 454,359
Work-in-process	22,340	21,691
Raw materials	30,612	25,835
New and Used Boats, Motors, and Trailers [Member]
Inventory [Line Items]
Inventories	625,287	272,422
In Transit Inventory and Deposits [Member]
Inventory [Line Items]
Inventories	115,879	117,268
Parts, Accessories, and Other [Member]
Inventory [Line Items]
Inventories	$ 18,712	$ 17,143

Property and Equipment - Schedu

Property and Equipment - Schedule of Property and Equipment, Net (Detail) - USD ($) $ in Thousands	Sep. 30, 2023	Sep. 30, 2022
Property Plant And Equipment [Line Items]
Gross property and equipment	$ 671,811	$ 357,285
Less: accumulated depreciation and amortization	(144,259)	(111,274)
Property and equipment, net	527,552	246,011
Land [Member]
Property Plant And Equipment [Line Items]
Gross property and equipment	124,605	80,312
Buildings and Improvements [Member]
Property Plant And Equipment [Line Items]
Gross property and equipment	413,688	179,162
Machinery and Equipment [Member]
Property Plant And Equipment [Line Items]
Gross property and equipment	100,517	70,445
Furniture and Fixtures [Member]
Property Plant And Equipment [Line Items]
Gross property and equipment	8,153	6,523
Vehicles [Member]
Property Plant And Equipment [Line Items]
Gross property and equipment	$ 24,848	$ 20,843

Property and Equipment - Additi

Property and Equipment - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Property Plant And Equipment [Abstract]
Depreciation	$ 32.3	$ 16.7	$ 13.9

Leases - Additional Information

Leases - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Leases [Abstract]
Weighted average remaining lease term (years)	21 years
Operating lease expense	$ 30.4	$ 23.5	$ 24.1
Variable lease expense	$ 0.7	$ 0.6	$ 0.7
Operating lease renewal term	25 years
Weighted average discount rate	6.40%

Leases - Summary of Maturities

Leases - Summary of Maturities of Lease Liabilities by Fiscal Year (Details) $ in Thousands	Sep. 30, 2023 USD ($)
Operating Leases
2024	$ 16,182
2025	15,997
2026	14,603
2027	14,061
2028	13,223
Thereafter	261,258
Total lease payments	335,324
Less: interest	(201,465)
Present value of lease liabilities	$ 133,859

Leases - Schedule of Supplement

Leases - Schedule of Supplemental Cash Flow Information Related to Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 17,474	$ 16,039	$ 16,917
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	$ 42,488	$ 4,588	$ 74,097

Leases - Summary of Operating L

Leases - Summary of Operating Lease Income and Other Income (Detail) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Operating leases:
Operating lease income	$ 9,780	$ 1,285
Variable lease income	526	843
Total rental income	$ 10,306	$ 2,128
Operating Lease Income Comprehensive Income Extensible List Not Disclosed Flag	true	true

Leases - Summary of Future Mini

Leases - Summary of Future Minimum Payments Received (Details) $ in Thousands	Sep. 30, 2023 USD ($)
Leases [Abstract]
2024	$ 8,553
2025	5,600
2026	4,132
2027	3,113
2028	1,506
Thereafter	42
Total lease payments	$ 22,946

Goodwill Other Intangible Ass_3

Goodwill Other Intangible Assets and Other Long Term Assets - Additional Information (Detail) $ in Thousands		1 Months Ended				7 Months Ended	12 Months Ended
	Oct. 01, 2022 USD ($)	Oct. 31, 2022 USD ($)	Nov. 30, 2021 USD ($)	Jul. 31, 2021 USD ($)	May 31, 2021 USD ($)	Jun. 30, 2023 USD ($)	Sep. 30, 2023 USD ($) Segment	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)
Schedule Of Goodwill And Other Assets [Line Items]
Accounts receivable, net							$ 85,780	$ 50,287
Inventories							812,830	454,359
Short-term borrowings (Floor Plan)							537,060	132,026
Accrued expenses							112,746	89,402
Accounts payable							71,706	34,342
Contract liabilities							81,700	144,427
Goodwill							559,820	235,585	$ 195,563
Other identifiable intangibles							39,713	10,886
Revenue							2,394,706	2,308,098	2,063,257
Income (Loss) before taxes							147,435	261,921	$ 205,794
Other intangible assets, net							39,713	10,886
Goodwill and other intangible assets increased from acquisitions							353,100	45,300
Goodwill expected to be deductible for tax purposes							$ 216,000	10,500
Number of reportable segments \| Segment							2
Other long-term assets							$ 32,259	9,455
Nisswa Marine, Inc [Member]
Schedule Of Goodwill And Other Assets [Line Items]
Aggregate purchase price				$ 15,300
Cruisers Yachts [Member]
Schedule Of Goodwill And Other Assets [Line Items]
Aggregate purchase price					$ 62,700
Accounts receivable, net					3,100
Inventories					26,200
Short-term borrowings (Floor Plan)					11,700
Accrued expenses					10,300
Accounts payable					3,000
Goodwill					40,134
Intangible assets					4,602
Cash acquired					$ 5,993
Cruisers Yachts [Member] \| Customer Relationships [Member]
Schedule Of Goodwill And Other Assets [Line Items]
Weighted average useful life					2 years
Intrepid And Texas Master Craft [Member]
Schedule Of Goodwill And Other Assets [Line Items]
Aggregate consideration			$ 67,200
Tangible assets acquired			20,300
Goodwill			39,600
Estimated contingent consideration			6,000
Intangible assets			7,300
Cash acquired			9,400
Texas Master Craft [Member]
Schedule Of Goodwill And Other Assets [Line Items]
Goodwill			$ 10,700
C&C Boat Works, Boatzon and Midcoast Marine Group [Member]
Schedule Of Goodwill And Other Assets [Line Items]
Aggregate consideration						$ 49,000
Tangible assets acquired						20,300
Goodwill						26,800	13,600
Estimated contingent consideration						9,700
Intangible assets						1,900
Cash acquired						$ 100
IGY Marinas [Member]
Schedule Of Goodwill And Other Assets [Line Items]
Aggregate consideration	$ 552,905
Aggregate purchase price		$ 480,000
Accounts receivable, net	4,500
Other current assets	4,100
Accrued expenses	6,400
Maximum amount of consideration paid under earnout		100,000
Fair value of contingent consideration		$ 67,700
Contract liabilities	13,300
Tax contingency reserves	8,500
Goodwill	293,542
Other identifiable intangibles	30,400
Revenue							112,400	96,800
Income (Loss) before taxes							18,100	$ 5,600
Other intangible assets, net	30,400
Goodwill expected to be deductible for tax purposes	193,300
Estimated contingent consideration	67,700
Intangible assets	30,446
Cash acquired	$ 28,075
IGY Marinas [Member] \| Related Party [Member]
Schedule Of Goodwill And Other Assets [Line Items]
Series of notes receivable							$ 6,300
IGY Marinas [Member] \| Customer Relationships [Member]
Schedule Of Goodwill And Other Assets [Line Items]
Weighted average useful life	4 years 6 months

Goodwill Other Intangible Ass_4

Goodwill Other Intangible Assets and Other Long Term Assets - Summary of Estimated Fair Value of Assets Acquired and Liabilities Assumed at Acquisition Date (Detail) - USD ($) $ in Thousands		1 Months Ended
	Oct. 01, 2022	May 31, 2021	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Recognized amounts of identifiable assets acquired and liabilities assumed:
Goodwill			$ 559,820	$ 235,585	$ 195,563
IGY Marinas [Member]
Consideration:
Cash purchase price and net working capital adjustments, net of cash acquired	$ 482,997
Contingent consideration arrangement	67,700
Noncontrolling interests in consolidated subsidiaries	2,208
Fair value of total consideration transferred	552,905
Recognized amounts of identifiable assets acquired and liabilities assumed:
Net working capital, net of cash acquired of $28,075	(22,880)
Property and equipment	240,190
Operating lease right-of-use assets	39,720
Intangible assets	30,446
Equity method investments	14,098
Other long-term assets	6,973
Operating lease liabilities	(29,416)
Other liabilities	(1,301)
Deferred tax liabilities, net	(18,467)
Total identifiable net assets acquired:	259,363
Goodwill	293,542
Total	$ 552,905
Cruisers Yachts [Member]
Consideration:
Cash purchase price and net working capital adjustments, net of cash acquired		$ 61,448
Recognized amounts of identifiable assets acquired and liabilities assumed:
Current assets, net of cash acquired of $5,993		29,869
Property and equipment		12,126
Intangible assets		4,602
Current liabilities		(25,283)
Total identifiable net assets acquired:		21,314
Goodwill		40,134
Total		$ 61,448

Goodwill Other Intangible Ass_5

Goodwill Other Intangible Assets and Other Long Term Assets - Summary of Estimated Fair Value of Assets Acquired and Liabilities Assumed at Acquisition Date (Parenthetical) (Detail) - USD ($) $ in Thousands		1 Months Ended	12 Months Ended
	Oct. 01, 2022	May 31, 2021	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Business Acquisition [Line Items]
Cash purchase price and net working capital adjustments, net of cash acquired			$ 516,794	$ 83,198	$ 134,205
IGY Marinas [Member]
Business Acquisition [Line Items]
Current assets and net working capital, net of cash acquired	$ 28,075
Cash purchase price and net working capital adjustments, net of cash acquired	$ 28,075
Cruisers Yachts [Member]
Business Acquisition [Line Items]
Current assets and net working capital, net of cash acquired		$ 5,993
Cash purchase price and net working capital adjustments, net of cash acquired		$ 5,993

Goodwill Other Intangible Ass_6

Goodwill Other Intangible Assets and Other Long Term Assets - Summary of Changes in Carrying Amount of Goodwill by Reportable Segment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Goodwill [Line Items]
Beginning balance	$ 235,585	$ 195,563
Goodwill acquired	321,166	42,935
Foreign currency translation	3,069	(2,913)
Ending balance	559,820	235,585
Retail Operations [Member]
Goodwill [Line Items]
Beginning balance	166,551	155,429
Goodwill acquired	321,166	14,035
Foreign currency translation	3,069	(2,913)
Ending balance	490,786	166,551
Product Manufacturing [Member]
Goodwill [Line Items]
Beginning balance	69,034	40,134
Goodwill acquired		28,900
Ending balance	$ 69,034	$ 69,034

Goodwill Other Intangible Ass_7

Goodwill Other Intangible Assets and Other Long Term Assets - Summary of Other Intangible Assets, Net (Detail) - USD ($) $ in Thousands	Sep. 30, 2023	Sep. 30, 2022
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	$ 43,641	$ 13,684
Less: accumulated amortization	(3,928)	(2,798)
Intangible assets, net	39,713	10,886
Trade names - Iindefinite-lived [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	17,712	7,736
Other Intangible Assets, Primarily Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	$ 25,929	$ 5,948

Goodwill Other Intangible Ass_8

Goodwill Other Intangible Assets and Other Long Term Assets - Schedule of Aggregate Amortization Expense (Detail) $ in Thousands	Sep. 30, 2023 USD ($)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2024	$ 7,708
2025	7,261
2026	5,083
2027	3,698
2028	15
Total	$ 23,765

Accrued Expenses - Summary of A

Accrued Expenses - Summary of Accrued Expenses (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Sep. 30, 2022
Accounts Payable And Accrued Liabilities Current [Line Items]
Accrued expenses	$ 112,746	$ 89,402
Payroll Accruals [Member]
Accounts Payable And Accrued Liabilities Current [Line Items]
Accrued expenses	43,273	41,413
Customer and Storage Accruals [Member]
Accounts Payable And Accrued Liabilities Current [Line Items]
Accrued expenses	28,829	18,095
Sales and Other Taxes Payable [Member]
Accounts Payable And Accrued Liabilities Current [Line Items]
Accrued expenses	9,673	5,930
Other Accruals [Member]
Accounts Payable And Accrued Liabilities Current [Line Items]
Accrued expenses	$ 30,971	$ 23,964

Short-Term Borrowings and Lon_3

Short-Term Borrowings and Long-Term Debt - Additional Information (Detail) - USD ($)	1 Months Ended		12 Months Ended
	Jul. 31, 2023	Aug. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Line Of Credit Facility [Line Items]
Unamortized debt issuance costs			$ 1,600,000	$ 3,100,000
Long-term debt, net of current maturities			$ 389,231,000	45,301,000
Interest rate on floor plan facility			3.45%
Long-term debt			$ 424,899,000
Mortgage Facility [Member]
Line Of Credit Facility [Line Items]
Debt instrument interest rate			2.20%
Long-term debt			$ 424,899,000	48,693,000
Borrowing Base Amount and Aging Inventory [Member]
Line Of Credit Facility [Line Items]
Inventory and working capital needs			$ 538,700,000	$ 135,100,000
Interest rate on short-term borrowings			8.80%	6%
Revolving Credit Facility [Member] \| Minimum [Member]
Line Of Credit Facility [Line Items]
Debt instrument interest rate			1.50%
Revolving Credit Facility [Member] \| Maximum [Member]
Line Of Credit Facility [Line Items]
Debt instrument interest rate			2%
Term Loan Facility \| Minimum [Member]
Line Of Credit Facility [Line Items]
Debt instrument interest rate			1.50%
Term Loan Facility \| Maximum [Member]
Line Of Credit Facility [Line Items]
Debt instrument interest rate			2%
New Credit Agreement [Member]
Line Of Credit Facility [Line Items]
Amount of borrowing availability		$ 750,000,000
New Credit Agreement [Member] \| Delayed Draw Term Loan Facility
Line Of Credit Facility [Line Items]
Long term debt maturity		2027-08
New Credit Agreement [Member] \| Delayed Draw Mortgage Loan Facility [Member]
Line Of Credit Facility [Line Items]
Long term debt maturity		2027-08
Long-term debt		$ 100,000,000
New Credit Agreement [Member] \| Maximum [Member] \| Delayed Draw Term Loan Facility
Line Of Credit Facility [Line Items]
Long-term debt		400,000,000
New Credit Agreement [Member] \| Revolving Credit Facility [Member]
Line Of Credit Facility [Line Items]
Amount of borrowing availability		100,000,000
Swingline facility		20,000,000
Letter of credit sublimit amount		$ 20,000,000
Amended Credit Facility [Member]
Line Of Credit Facility [Line Items]
Amount of borrowing availability	$ 950,000,000
Leverage ratio			3.35%
Debt instrument, covenant compliance			The covenants include provisions that our leverage ratio must not exceed 3.35 to 1.0 and that our consolidated fixed charge coverage ratio must be greater than 1.10 to 1.0. As of September 30, 2023, we were in compliance with all covenants under the Amended Credit Agreement. The Amended Credit Agreement is secured by the Company’s personal property assets, including inventory and related accounts receivable. The mortgage loans will also be secured by the real estate pledged as collateral for such loans.
Additional borrowings			$ 8,500,000
Credit facility interest rate description			The interest rate is (a) for amounts outstanding under the Floor Plan, 3.45% above the one month secured term rate as administered by the CME Group Benchmark Administration Limited (CBA) (“SOFR”), (b) for amounts outstanding under the revolving credit facility or the term loan facility, a range of 1.50% to 2.0%, depending on the total net leverage ratio, above the one month, three month, or six month term SOFR rate, and (c) for amounts outstanding under the mortgage loan facility, 2.20% above the one month, three month, or six month term SOFR rate. The alternate base rate with a margin is available for amounts outstanding under the revolving credit, term, and mortgage loan facilities and the Euro Interbank Offered Rate plus a margin is available for borrowings in Euro or other currencies other than dollars under the revolving credit facility.
Amended Credit Facility [Member] \| Delayed Draw Term Loan Facility
Line Of Credit Facility [Line Items]
Long term debt maturity	2027-08
Amended Credit Facility [Member] \| Delayed Draw Mortgage Loan Facility [Member]
Line Of Credit Facility [Line Items]
Amount of borrowing availability			$ 100,000,000
Long term debt maturity	2027-08
Long-term debt	$ 100,000,000
Amended Credit Facility [Member] \| Maximum [Member]
Line Of Credit Facility [Line Items]
Fixed coverage ratio			110
Amended Credit Facility [Member] \| Maximum [Member] \| Delayed Draw Term Loan Facility
Line Of Credit Facility [Line Items]
Long-term debt	400,000,000
Amended Credit Facility [Member] \| Revolving Credit Facility [Member]
Line Of Credit Facility [Line Items]
Amount of borrowing availability	100,000,000		$ 88,000,000
Swingline facility	20,000,000
Letter of credit sublimit amount	$ 20,000,000

Short-Term Borrowings and Lon_4

Short-Term Borrowings and Long-Term Debt - Schedule of Long-Term Debt (Detail) - USD ($) $ in Thousands	Sep. 30, 2023	Sep. 30, 2022
Debt Instrument [Line Items]
Long-term debt	$ 424,899
Less: current portion	(33,767)	$ (2,882)
Less: unamortized portion of debt issuance costs	(1,901)	(510)
Long-term debt, net current portion and unamortized debt issuance costs	389,231	45,301
Mortgage Facility [Member]
Debt Instrument [Line Items]
Long-term debt	424,899	48,693
Mortgage Facility [Member] \| Mortgage Facility Payable to Flagship Bank [Member]
Debt Instrument [Line Items]
Long-term debt	5,907	6,403
Mortgage Facility [Member] \| Mortgage Facility Payable to Seacoast National Bank [Member]
Debt Instrument [Line Items]
Long-term debt	16,735	17,098
Mortgage Facility [Member] \| Mortgage facility payable to Hancock Whitney Bank [Member]
Debt Instrument [Line Items]
Long-term debt	23,279	$ 25,192
Term Loan [Member] \| Term loan payable to M&T Bank [Member]
Debt Instrument [Line Items]
Long-term debt	377,500
Term Loan [Member] \| Loan payable to TRANSPORT S.a.s di Taula Vittorio and C. [Member]
Debt Instrument [Line Items]
Long-term debt	$ 1,478

Short-Term Borrowings and Lon_5

Short-Term Borrowings and Long-Term Debt - Schedule of Long-Term Debt (Parenthetical) (Detail) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Mortgage Facility [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	2.20%
Mortgage Facility [Member] \| Mortgage Facility Payable to Flagship Bank [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	7.50%	5.25%
Debt instrument basis percentage	1%	1%
Principal and interest payments with a balloon payment	$ 4	$ 4
Additional extension for two one-year periods	Aug. 31, 2027	Aug. 31, 2027
Mortgage Facility [Member] \| Mortgage Facility Payable to Flagship Bank [Member] \| Interest Rate Prime [Member]
Debt Instrument [Line Items]
Debt instrument description of variable rate basis	(prime minus 100 basis points with a floor of 2.00	(prime minus 100 basis points with a floor of 2.00
Mortgage Facility [Member] \| Mortgage Facility Payable to Flagship Bank [Member] \| Interest Rate Floor [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	2%	2%
Mortgage Facility [Member] \| Mortgage Facility Payable to Seacoast National Bank [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	7.88%	5.63%
Debt instrument basis percentage		0.625%
Principal and interest payments with a balloon payment	$ 10	$ 6
Additional extension for two one-year periods	Aug. 31, 2027	Sep. 30, 2031
Mortgage Facility [Member] \| Mortgage Facility Payable to Seacoast National Bank [Member] \| Interest Rate Prime [Member]
Debt Instrument [Line Items]
Debt instrument description of variable rate basis		(greater of 3.00% or prime minus 62.5 basis points
Mortgage Facility [Member] \| Mortgage Facility Payable to Seacoast National Bank [Member] \| SOFR [Member]
Debt Instrument [Line Items]
Debt instrument basis percentage	220%
Debt instrument description of variable rate basis	(SOFR plus 220 basis points). Requires monthly interest payments
Mortgage Facility [Member] \| Mortgage facility payable to Hancock Whitney Bank [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	7.88%	5.63%
Debt instrument basis percentage	0.625%	0.625%
Principal and interest payments with a balloon payment	$ 15.5	$ 15.5
Additional extension for two one-year periods	Nov. 30, 2027	Nov. 30, 2027
Percentage of outstanding borrowings hedged	50%	50%
Fixed interest rate	3.20%	3.20%
Mortgage Facility [Member] \| Mortgage facility payable to Hancock Whitney Bank [Member] \| Interest Rate Prime [Member]
Debt Instrument [Line Items]
Debt instrument description of variable rate basis	(prime minus 62.5 basis points with a floor of 2.25	(prime minus 62.5 basis points with a floor of 2.25
Mortgage Facility [Member] \| Mortgage facility payable to Hancock Whitney Bank [Member] \| Interest Rate Floor [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	2.25%	2.25%
Mortgage Facility [Member] \| Revolving mortgage facility with FineMark National Bank & Trust [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	8.25%	6%
Debt instrument basis percentage	0.25%	0.25%
Additional extension for two one-year periods		Oct. 31, 2027
Current available borrowings	$ 22.7	$ 24.5
Mortgage Facility [Member] \| Revolving mortgage facility with FineMark National Bank & Trust [Member] \| Base Rate [Member]
Debt Instrument [Line Items]
Debt instrument description of variable rate basis	(prime minus 25 basis points with a floor of 3.00	(prime minus 25 basis points with a floor of 3.00
Mortgage Facility [Member] \| Revolving mortgage facility with FineMark National Bank & Trust [Member] \| Interest Rate Floor [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	3%	3%
Term Loan [Member] \| Term loan payable to M&T Bank [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	6.83%
Additional extension for two one-year periods	Aug. 31, 2027
Term Loan [Member] \| Loan payable to TRANSPORT S.a.s di Taula Vittorio and C. [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	7.08%
Additional extension for two one-year periods	Dec. 31, 2030

Short-Term Borrowings and Lon_6

Short-Term Borrowings and Long-Term Debt - Summary of Aggregate Maturities of Long Term Debt (Detail) $ in Thousands	Sep. 30, 2023 USD ($)
Debt Disclosure [Abstract]
2024	$ 33,767
2025	33,767
2026	33,767
2027	295,190
2028	16,983
Thereafter	11,425
Total long-term debt	$ 424,899

Income Taxes - Summary of Incom

Income Taxes - Summary of Income Before Income Tax Provision (Detail) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Income before income tax provision:
United States	$ 130,535	$ 254,052	$ 202,643
Other	16,900	7,869	3,151
Income before income tax provision	$ 147,435	$ 261,921	$ 205,794

Income Taxes - Components of In

Income Taxes - Components of Income Taxes Provision (Detail) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Current provision:
Federal	$ 9,315	$ 49,380	$ 38,028
Foreign	3,204	1,739	1,516
State	2,307	11,004	6,527
Total current provision	14,826	62,123	46,071
Deferred provision:
Federal	18,723	1,650	4,201
State	4,408	159	543
Total deferred provision	23,131	1,809	4,744
Total income tax provision	$ 37,957	$ 63,932	$ 50,815

Income Taxes - Summary of Tax R

Income Taxes - Summary of Tax Rates (Detail)	12 Months Ended
Income Taxes - Summary of Tax Rates (Detail)	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Income Tax Disclosure [Abstract]
Federal tax provision	21%	21%	21%
State taxes, net of federal benefit	3.60%	3.40%	3.70%
Stock-based compensation	(0.20%)	(0.60%)	(0.70%)
Foreign rate differential	0.20%		0.10%
US tax on foreign earnings	1.40%
Equity Investment	(0.90%)
Other	0.60%	0.60%	0.60%
Effective tax rate	25.70%	24.40%	24.70%

Income Taxes - Components of De

Income Taxes - Components of Deferred Tax Asset (Detail) - USD ($) $ in Thousands	Sep. 30, 2023	Sep. 30, 2022
Deferred tax assets:
Inventories	$ 1,010	$ 831
Operating lease liabilities	31,103	23,323
Accrued expenses	1,069	889
Stock-based compensation	5,508	4,147
Interest deductions	2,413
US tax effect of foreign taxes	4,908
Tax loss carryforwards	2,919	599
Other	1,826	1,154
Valuation Allowance	(556)
Total long-term deferred tax assets	50,200	30,943
Deferred tax liabilities:
Depreciation and amortization	(69,904)	(22,369)
Operating lease right-of-use assets	(31,392)	(22,733)
Equity method investments	(3,835)
Other	(1,996)	(1,242)
Total long-term deferred tax liabilities	(107,127)	(46,344)
Net deferred tax liabilities	$ (56,927)	$ (15,401)

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Income Taxes [Line Items]
Deferred tax asset	$ 2,900
Gross unrecognized tax benefits	5,833	$ 5,800
Interest and penalties	1,400	$ 1,400
Domestic Country
Income Taxes [Line Items]
Net operating loss (NOL) carryforwards	7,800
Foreign Country
Income Taxes [Line Items]
Net operating loss (NOL) carryforwards	$ 7,300
Minimum [Member] \| State And Local Jurisdiction
Income Taxes [Line Items]
Operating loss carry forwards expiration year	2024

Income Taxes - Summary of Recon

Income Taxes - Summary of Reconciliation of Unrecognized Tax Benefits (Detail) $ in Thousands	12 Months Ended
	Sep. 30, 2023 USD ($)
Income Tax Disclosure [Abstract]
Unrecognized tax benefits at the beginning of the year	$ 5,800
Increases in tax positions for prior years	5,837
Decreases in tax positions for prior years	(4)
Unrecognized tax benefits at the end of the year	$ 5,833

Shareholders' Equity - Addition

Shareholders' Equity - Additional Information (Detail) - USD ($) $ in Millions	Sep. 30, 2023	Sep. 30, 2022	Mar. 31, 2020
Equity [Abstract]
Treasury stock, shares	7,267,021	7,267,021
Shares approved to repurchase			10,000,000
Aggregate purchase price	$ 148.7
Remaining shares available for future purchases under share repurchase program	8,900,000

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense, approximately	$ 21,700	$ 16,000	$ 9,700
Net proceeds from issuance of common stock under incentive compensation and employee purchase plans	$ 2,353	$ 2,199	$ 2,626

The Incentive Stock Plans - Add

The Incentive Stock Plans - Additional Information (Detail) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Feb. 28, 2023	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options granted		5,000	0
Total intrinsic value of options exercised		$ 0.1	$ 1.4	$ 0.8
Incentive Stock Plan 2021 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Increase in total number of available shares	1,300,000
Incentive Stock Plan 2021 [Member] \| Subject To Award [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares authorized			2,300,000
Incentive Stock Plan 2011 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Common stock shares available			545,729

The Incentive Stock Plans - Sum

The Incentive Stock Plans - Summary of Activity from Incentive Stock Plans (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Options granted, Options Outstanding	5,000	0
Stock Options [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Shares Available for Grant, Beginning Balance	1,536,094
Shares authorized, Shares Available for Grant	1,300,000
Options granted, Shares Available for Grant	(5,000)
Options cancelled/forfeited/expired, Shares Available for Grant	10,000
Restricted stock awards granted, Shares Available for Grant	(825,573)
Restricted stock awards forfeited, Shares Available for Grant	20,445
Additional shares of stock issued, Shares Available for Grant	(51,378)
Shares Available for Grant, Ending Balance	1,984,588	1,536,094
Options Outstanding, Beginning Balance	54,750	62,750
Options granted, Options Outstanding	5,000
Options cancelled/forfeited/expired, Options Outstanding	(10,000)
Options exercised, Options Outstanding	(3,000)
Options Outstanding, Ending Balance	54,750	62,750
Exercisable as of September 30, 2023, Options Outstanding	51,416
Aggregate Intrinsic Value	$ 746	$ 893
Exercisable as of September 30 2023, Aggregate Intrinsic Value	$ 705
Weighted Average Exercise Price, Beginning Balance	$ 20.96	$ 17.62
Options granted, Weighted Average Exercise Price	31.2
Options cancelled/forfeited/expired, Weighted Average Exercise Price	7.48
Options exercised, Weighted Average Exercise Price	13.06
Weighted Average Exercise Price, Ending Balance	20.96	$ 17.62
Exercisable as of September 30 2023, Weighted Average Exercise Price	$ 20.3
Weighted Average Remaining Contractual Life	2 years 6 months	2 years 3 months 18 days
Options granted, Weighted Average Remaining Contractual Life	2 years
Exercisable as of September 30, 2023, Weighted Average Remaining Contractual Life	2 years 1 month 6 days

Employee Stock Purchase Plan -

Employee Stock Purchase Plan - Additional Information (Detail) - USD ($)	1 Months Ended	12 Months Ended
	Feb. 28, 2019	Sep. 30, 2023	Sep. 30, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares issued		29,374,724	28,939,846
Stock Purchase Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Additional common shares authorized	500,000
Common stock available for issuance		1,500,000
Stock Purchase Plan, requisite continuous service		1 year
Annual offerings description		implementation of annual offerings beginning on the first day of October in each of the years 2008 through 2027, with each offering terminating on September 30 of the following year.
Closing price of common stock on the first and last day of the offering		85%
Percentage not exceeding to periodic payment of purchase price		10%
Maximum common stock value purchased by participant annually		$ 25,000
Common stock, shares issued		1,284,679
1998 Employee Stock Purchase Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Additional Common Shares Authorized		52,837

Employee Stock Purchase Plan _2

Employee Stock Purchase Plan - Weighted Average Assumptions of Employee Stock Purchase Plan (Detail) - Stock Purchase Plan [Member]	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Dividend yield	0%	0%	0%
Risk-free interest rate	4.40%	0.70%	0.10%
Volatility	47.10%	49%	69.60%
Expected life	6 months	6 months	6 months

Restricted Stock Awards - Addit

Restricted Stock Awards - Additional Information (Detail) - Restricted Stock Awards [Member] $ in Millions	12 Months Ended
	Sep. 30, 2023 USD ($)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation cost related to non-vested restricted stock awards	$ 25.2
Weighted average period unrecognized compensation costs related to non-vested restricted awards are expected to be recognized	1 year 10 months 24 days
Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting periods of restricted stock award	2 years
Percentage of actual amount of award earned based on actual specified performance target met	0%
Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting periods of restricted stock award	4 years
Percentage of actual amount of award earned based on actual specified performance target met	175%

Restricted Stock Awards - Restr

Restricted Stock Awards - Restricted Stock Award Activity (Detail) - Restricted Stock Awards [Member]	12 Months Ended
	Sep. 30, 2023 $ / shares shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares/ Units, Non-vested beginning balance \| shares	934,517
Shares/ Units, Awards granted \| shares	825,573
Shares/ Units, Awards vested \| shares	(398,494)
Shares/ Units, Awards forfeited \| shares	(20,445)
Shares/ Units, Non-vested ending balance \| shares	1,341,151
Weighted Average Grant Date Fair Value, Non-vested beginning balance \| $ / shares	$ 35.23
Weighted Average Grant Date Fair Value, Awards granted \| $ / shares	32.16
Weighted Average Grant Date Fair Value, Awards vested \| $ / shares	29.75
Weighted Average Grant Date Fair Value, Awards forfeited \| $ / shares	31.98
Weighted Average Grant Date Fair Value, Non-vested ending balance \| $ / shares	$ 35.02

Net Income Per Share - Basic an

Net Income Per Share - Basic and Diluted Net Income Per Share (Detail) - shares	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Earnings Per Share [Abstract]
Weighted average common shares outstanding used in calculating basic net income per share	21,852,425	21,706,225	22,010,130
Effect of dilutive options and non-vested restricted stock awards	576,956	692,984	849,368
Weighted average common and common equivalent shares used in calculating diluted net income per share	22,429,381	22,399,209	22,859,498

Net Income Per Share - Addition

Net Income Per Share - Additional Information (Detail) - shares	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Stock Options [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from earnings per share calculation	10,963	71,976	1,619

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail) - Letter of Credit [Member] $ in Millions	Sep. 30, 2023 USD ($)
Loss Contingencies [Line Items]
Letters of credit for insurance carriers and equity investment	$ 12
Equity Investment in Cannes, France [Member]
Loss Contingencies [Line Items]
Letters of credit for insurance carriers and equity investment	12
Asset Pledged as Collateral without Right [Member]
Loss Contingencies [Line Items]
Letters of credit for insurance carriers and equity investment	$ 2

Employee 401(k) Profit Sharin_2

Employee 401(k) Profit Sharing Plans - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Compensation And Retirement Disclosure [Abstract]
Duration of profit sharing plan	90 days
Introductory period of profit sharing	April 1 or October 1
Employees eligibility age for participating in profit sharing plan	21 years
Total participants contributions in Profit sharing plan	50%
Maximum of each participants compensation	6%
Contribution under the Profit sharing plan	$ 7.1	$ 6.1	$ 5

Segment Information - Additiona

Segment Information - Additional Information (Detail)	12 Months Ended
Segment Information - Additional Information (Detail)	Sep. 30, 2023 Feet Segment
Segment Reporting Information [Line Items]
Number of reportable segments \| Segment	2
Minimum [Member]
Segment Reporting Information [Line Items]
Number of models producing premium yachts	33
Maximum [Member]
Segment Reporting Information [Line Items]
Number of models producing premium yachts	60

Segment Information - Summary o

Segment Information - Summary of Depreciation and Amortization of Reportable Segments (Detail) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Segment Reporting Information [Line Items]
Depreciation	$ 32,300	$ 16,700	$ 13,900
Operating Segments [Member]
Segment Reporting Information [Line Items]
Depreciation	32,310	16,708	13,853
Amortization	8,722	2,710	1,753
Operating Segments [Member] \| Retail Operations [Member]
Segment Reporting Information [Line Items]
Depreciation	28,172	16,577	13,821
Amortization	7,096	857	1,429
Operating Segments [Member] \| Product Manufacturing [Member]
Segment Reporting Information [Line Items]
Depreciation	4,138	131	32
Amortization	$ 1,626	$ 1,853	$ 324

Segment Information - Summary_2

Segment Information - Summary of Revenue and Income from Operations of Reportable Segments (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Revenue:
Revenue	$ 2,394,706	$ 2,308,098	$ 2,063,257
Income from operations:
Income from operations	200,802	265,204	209,459
Operating Segments [Member] \| Retail Operations [Member]
Revenue:
Revenue	2,294,362	2,212,922	2,043,613
Income from operations:
Income from operations	192,487	249,186	207,034
Operating Segments [Member] \| Product Manufacturing [Member]
Revenue:
Revenue	222,289	176,273	44,000
Income from operations:
Income from operations	23,420	20,258	6,940
Intersegment adjustments [Member]
Revenue:
Revenue	(121,945)	(81,097)	(24,356)
Income from operations:
Income from operations	$ (15,105)	$ (4,240)	$ (4,515)

Related Parties - (Additional I

Related Parties - (Additional Information) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Sep. 30, 2022
Related Party Transaction [Line Items]
Total lease payments	$ 335,324
IGY Marinas [Member] \| Affiliated Entity [Member]
Related Party Transaction [Line Items]
Series of notes receivable	6,300
Total lease payments	$ 5,700
SkipperBuds [Member] \| Affiliated Entity [Member]
Related Party Transaction [Line Items]
Total lease payments		$ 5,700