Planet Fitness (PLNT) 10-Q7 Nov 242024 Q3 Quarterly reportFinancial data

Company Profile

Cover

Cover - shares	9 Months Ended
Cover - shares	Sep. 30, 2024	Nov. 01, 2024
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2024
Document Transition Report	false
Entity File Number	001-37534
Entity Registrant Name	PLANET FITNESS, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	38-3942097
Entity Address, Address Line One	4 Liberty Lane West
Entity Address, City or Town	Hampton
Entity Address, State or Province	NH
Entity Address, Postal Zip Code	03842
City Area Code	603
Local Phone Number	750-0001
Title of 12(b) Security	Class A common stock, $0.0001 Par Value
Trading Symbol	PLNT
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Amendment Flag	false
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q3
Entity Central Index Key	0001637207
Current Fiscal Year End Date	--12-31
Class A common stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		84,180,623
Class B common stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		413,207

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 298,783	$ 275,842
Restricted cash	67,766	46,279
Short-term marketable securities	108,629	74,901
Accounts receivable, net of allowances for uncollectible amounts of $0 and $0 as of September 30, 2024 and December 31, 2023, respectively	48,958	41,890
Inventory	4,858	4,677
Restricted assets - national advertising fund	363	0
Prepaid expenses	14,432	13,842
Other receivables	7,882	11,072
Income tax receivable and prepayments	4,773	3,314
Total current assets	556,444	471,817
Long-term marketable securities	55,535	50,886
Investments, net of allowance for expected credit losses of $18,538 and $17,689 as of September 30, 2024 and December 31, 2023, respectively	75,078	77,507
Property and equipment, net of accumulated depreciation of $347,586 and $322,958, as of September 30, 2024 and December 31, 2023, respectively	421,633	390,405
Right-of-use assets, net	400,246	381,010
Intangible assets, net	334,236	372,507
Goodwill	719,127	717,502
Deferred income taxes	481,456	504,188
Other assets, net	4,426	3,871
Total assets	3,048,181	2,969,693
Current liabilities:
Current maturities of long-term debt	22,500	20,750
Accounts payable	31,844	23,788
Accrued expenses	66,530	66,299
Equipment deposits	10,345	4,506
Deferred revenue, current	67,517	59,591
Payable pursuant to tax benefit arrangements, current	48,553	41,294
Other current liabilities	39,001	35,101
Total current liabilities	286,290	251,329
Long-term debt, net of current maturities	2,152,276	1,962,874
Lease liabilities, net of current portion	408,588	381,589
Deferred revenue, net of current portion	33,578	32,047
Deferred tax liabilities	1,566	1,644
Payable pursuant to tax benefit arrangements, net of current portion	428,858	454,368
Other liabilities	4,139	4,833
Total noncurrent liabilities	3,029,005	2,837,355
Commitments and contingencies (Note 13)
Stockholders’ equity (deficit):
Accumulated other comprehensive (loss) income	220	172
Additional paid in capital	602,948	575,631
Accumulated deficit	(869,309)	(691,461)
Total stockholders’ deficit attributable to Planet Fitness, Inc.	(266,132)	(115,649)
Non-controlling interests	(982)	(3,342)
Total stockholders’ deficit	(267,114)	(118,991)
Total liabilities and stockholders’ deficit	3,048,181	2,969,693
Class A common stock
Stockholders’ equity (deficit):
Common stock, value	9	9
Class B common stock
Stockholders’ equity (deficit):
Common stock, value	$ 0	$ 0

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) shares in Thousands, $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Current assets:
Accounts receivable, allowance for bad debts	$ 0	$ 0
Allowance for expected credit loss	18,538	17,689
Accumulated depreciation	$ 347,586	$ 322,958
Class A common stock
Stockholders’ equity (deficit):
Common stock, par value (in usd per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)	300,000	300,000
Common stock, shares issued (in shares)	84,104	86,760
Common stock, shares outstanding (in shares)	84,104	86,760
Class B common stock
Stockholders’ equity (deficit):
Common stock, par value (in usd per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)	100,000	100,000
Common stock, shares issued (in shares)	488	1,397
Common stock, shares outstanding (in shares)	488	1,397

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Revenue:
Total revenue	$ 292,246	$ 277,551	$ 841,204	$ 786,240
Operating costs and expenses:
Cost of revenue	45,701	53,751	116,628	132,561
Club operations	71,614	63,120	216,119	188,011
Selling, general and administrative	32,647	33,290	93,453	93,705
National advertising fund expense	19,720	17,618	59,624	52,496
Depreciation and amortization	41,033	37,477	120,230	110,254
Other losses (gains), net	280	(56)	698	7,705
Total operating costs and expenses	210,995	205,200	606,752	584,732
Income from operations	81,251	72,351	234,452	201,508
Other income (expense), net:
Interest income	5,610	4,245	16,687	12,339
Interest expense	(26,603)	(21,704)	(72,569)	(64,771)
Other (expense) income, net	(558)	148	1,132	631
Total other expense, net	(21,551)	(17,311)	(54,750)	(51,801)
Income before income taxes	59,700	55,040	179,702	149,707
Provision for income taxes	16,523	13,474	49,824	38,855
Losses from equity-method investments, net of tax	(782)	(242)	(3,198)	(580)
Net income	42,395	41,324	126,680	110,272
Less: net income attributable to non-controlling interests	386	2,190	1,722	7,299
Net income attributable to Planet Fitness, Inc.	$ 42,009	$ 39,134	$ 124,958	$ 102,973
Class A common stock
Net income per share of Class A common stock:
Basic (in usd per share)	$ 0.50	$ 0.46	$ 1.45	$ 1.22
Diluted (in usd per share)	$ 0.50	$ 0.46	$ 1.45	$ 1.21
Weighted-average shares of Class A common stock outstanding:
Basic (in shares)	84,569,504	84,609,522	86,090,290	84,557,902
Diluted (in shares)	84,727,825	84,886,319	86,289,084	84,870,312
Franchise
Revenue:
Total revenue	$ 82,873	$ 80,587	$ 254,783	$ 237,313
National advertising fund revenue
Revenue:
Total revenue	19,542	17,578	59,442	52,378
Corporate-owned clubs
Revenue:
Total revenue	128,132	113,245	375,976	332,885
Equipment
Revenue:
Total revenue	$ 61,699	$ 66,141	$ 151,003	$ 163,664

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 42,395	$ 41,324	$ 126,680	$ 110,272
Other comprehensive income (loss), net:
Foreign currency translation adjustments	286	(393)	(403)	17
Unrealized gain (loss) on marketable securities, net of tax	1,030	42	451	(253)
Total other comprehensive income (loss), net	1,316	(351)	48	(236)
Total comprehensive income	43,711	40,973	126,728	110,036
Less: total comprehensive income attributable to non-controlling interests	386	2,190	1,722	7,299
Total comprehensive income attributable to Planet Fitness, Inc.	$ 43,325	$ 38,783	$ 125,006	$ 102,737

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Cash flows from operating activities:
Net income	$ 126,680	$ 110,272
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	120,230	110,254
Amortization of deferred financing costs	3,984	4,114
Loss on extinguishment of debt	2,285	0
Accretion of marketable securities discount	(2,658)	(2,224)
Losses from equity-method investments, net of tax	3,198	580
Dividends accrued on held-to-maturity investment	(1,618)	(1,490)
Credit loss (gain) on held-to-maturity investment	849	(6)
Deferred tax expense	40,077	34,884
Gain on re-measurement of tax benefit arrangement liability	(774)	0
Loss on disposal of property and equipment	400	158
Loss on reacquired franchise rights	0	110
Equity-based compensation expense	5,965	6,326
Other	138	(25)
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	(7,443)	10,086
Inventory	(201)	(2,270)
Other assets and other current assets	1,735	(1,722)
Restricted assets - national advertising fund	(368)	805
Accounts payable and accrued expenses	8,818	(7,488)
Other liabilities and other current liabilities	(741)	6,855
Income taxes	(1,553)	(104)
Payments pursuant to tax benefit arrangements	(28,786)	(21,780)
Equipment deposits	5,835	5,495
Deferred revenue	9,552	9,428
Leases	9,138	4,662
Net cash provided by operating activities	294,742	266,920
Cash flows from investing activities:
Additions to property and equipment	(112,968)	(84,636)
Acquisition of franchisees, net of cash acquired	0	(26,264)
Proceeds from sale of property and equipment	568	2
Purchases of marketable securities	(116,833)	(155,007)
Maturities of marketable securities	80,922	37,990
Other investments	0	(20,000)
Net cash used in investing activities	(148,311)	(247,915)
Cash flows from financing activities:
Proceeds from issuance of long-term debt	800,000	0
Proceeds from issuance of Class A common stock	17,221	8,575
Principal payments on capital lease obligations	(100)	(152)
Repayment of long-term debt	(603,063)	(15,563)
Payment of deferred financing and other debt-related costs	(12,055)	0
Repurchase and retirement of Class A common stock	(300,205)	(125,030)
Distributions paid to members of Pla-Fit Holdings	(3,345)	(4,216)
Net cash used in financing activities	(101,547)	(136,386)
Effects of exchange rate changes on cash and cash equivalents	(456)	233
Net increase (decrease) in cash, cash equivalents and restricted cash	44,428	(117,148)
Cash, cash equivalents and restricted cash, beginning of period	322,121	472,499
Cash, cash equivalents and restricted cash, end of period	366,549	355,351
Supplemental cash flow information:
Cash paid for interest	53,718	60,964
Net cash paid for income taxes	11,248	4,394
Non-cash investing activities:
Non-cash additions to property and equipment included in accounts payable and accrued expenses	$ 18,446	$ 20,590

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Changes in Equity (Deficit) (Unaudited) - USD ($) $ in Thousands	Total	Class A common stock	Class B common stock	Common stock Class A common stock	Common stock Class B common stock	Accumulated other comprehensive (loss) income	Additional paid- in capital	Accumulated deficit	Non-controlling interests
Beginning balance (in shares) at Dec. 31, 2022				83,430,000	6,146,000
Beginning balance at Dec. 31, 2022	$ (211,561)			$ 8	$ 1	$ (448)	$ 505,144	$ (703,717)	$ (12,549)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	110,272							102,973	7,299
Equity-based compensation expense	6,326						6,326
Repurchase and retirement of Class A common stock (in shares)				(1,699,000)
Repurchase and retirement of Class A common stock	(126,078)						3,117	(126,078)	(3,117)
Exchanges of Class B common stock and other adjustments (in shares)				3,413,000	(3,413,000)
Exchanges of Class B common stock and other adjustments	0			$ 1	$ (1)		(9,096)		9,096
Exercise of stock options, vesting of restricted share units and ESPP share purchase (in shares)				266,000
Exercise of stock options, vesting of restricted share units and ESPP share purchase	8,611						8,611
Tax benefit arrangement liability and deferred taxes arising from exchanges of Class B common stock	56,295						56,295
Non-cash adjustments to VIEs	(389)								(389)
Deconsolidation of VIEs	(3,954)							22	(3,976)
Distributions paid to members of Pla-Fit Holdings	(4,216)								(4,216)
Other comprehensive (loss) income	(236)					(236)
Ending balance (in shares) at Sep. 30, 2023				85,410,000	2,733,000
Ending balance at Sep. 30, 2023	(164,930)			$ 9	$ 0	(684)	570,397	(726,800)	(7,852)
Beginning balance (in shares) at Jun. 30, 2023				83,980,000	4,151,000
Beginning balance at Jun. 30, 2023	(215,961)			$ 9	$ 0	(333)	564,170	(765,815)	(13,992)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	41,324							39,134	2,190
Equity-based compensation expense	1,533						1,533
Exchanges of Class B common stock and other adjustments (in shares)				1,418,000	(1,418,000)
Exchanges of Class B common stock and other adjustments	0						(4,430)		4,430
Exercise of stock options, vesting of restricted share units and ESPP share purchase (in shares)				12,000
Exercise of stock options, vesting of restricted share units and ESPP share purchase	591						591
Tax benefit arrangement liability and deferred taxes arising from exchanges of Class B common stock	8,533						8,533
Deconsolidation of VIEs	(119)							(119)
Distributions paid to members of Pla-Fit Holdings	(480)								(480)
Other comprehensive (loss) income	(351)					(351)
Ending balance (in shares) at Sep. 30, 2023				85,410,000	2,733,000
Ending balance at Sep. 30, 2023	(164,930)			$ 9	$ 0	(684)	570,397	(726,800)	(7,852)
Beginning balance (in shares) at Dec. 31, 2023		86,760,000	1,397,000	86,760,000	1,397,000
Beginning balance at Dec. 31, 2023	(118,991)			$ 9	$ 0	172	575,631	(691,461)	(3,342)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	126,680							124,958	1,722
Equity-based compensation expense	5,965						5,965
Repurchase and retirement of Class A common stock (in shares)				(4,073,000)
Repurchase and retirement of Class A common stock	(302,806)						2,363	(302,806)	(2,363)
Exchanges of Class B common stock and other adjustments (in shares)		908,960		909,000	(909,000)
Exchanges of Class B common stock and other adjustments	0						(5,336)		5,336
Exercise of stock options, vesting of restricted share units and ESPP share purchase (in shares)				508,000
Exercise of stock options, vesting of restricted share units and ESPP share purchase	17,366						17,366
Tax benefit arrangement liability and deferred taxes arising from exchanges of Class B common stock	6,259						6,259
Distributions paid to members of Pla-Fit Holdings	(3,345)								(3,345)
Issuance of subsidiary stock to non-controlling interest	1,710						700		1,010
Other comprehensive (loss) income	48					48
Ending balance (in shares) at Sep. 30, 2024		84,104,000	488,000	84,104,000	488,000
Ending balance at Sep. 30, 2024	(267,114)			$ 9	$ 0	220	602,948	(869,309)	(982)
Beginning balance (in shares) at Jun. 30, 2024				84,496,000	650,000
Beginning balance at Jun. 30, 2024	(319,830)			$ 9	$ 0	(1,096)	594,049	(910,626)	(2,166)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	42,395							42,009	386
Equity-based compensation expense	3,118						3,118
Repurchase and retirement of Class A common stock (in shares)				(669,000)
Repurchase and retirement of Class A common stock	(692)							(692)
Exchanges of Class B common stock and other adjustments (in shares)		162,324		162,000	(162,000)
Exchanges of Class B common stock and other adjustments	0						(2,411)		2,411
Exercise of stock options, vesting of restricted share units and ESPP share purchase (in shares)				115,000
Exercise of stock options, vesting of restricted share units and ESPP share purchase	7,826						7,826
Tax benefit arrangement liability and deferred taxes arising from exchanges of Class B common stock	366						366
Distributions paid to members of Pla-Fit Holdings	(1,613)								(1,613)
Other comprehensive (loss) income	1,316					1,316
Ending balance (in shares) at Sep. 30, 2024		84,104,000	488,000	84,104,000	488,000
Ending balance at Sep. 30, 2024	$ (267,114)			$ 9	$ 0	$ 220	$ 602,948	$ (869,309)	$ (982)

Business organization

Business organization	9 Months Ended
Business organization	Sep. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Business organization	Business organization Planet Fitness, Inc. (the “Company”), through its subsidiaries, is a franchisor and operator of fitness clubs (historically referred to as stores or centers), with approximately 19.6 million members and 2,637 owned and franchised locations (referred to as clubs) in all 50 states, the District of Columbia, Puerto Rico, Canada, Panama, Mexico, Australia and Spain as of September 30, 2024. The Company serves as the reporting entity for its various subsidiaries that operate three distinct lines of business: • Licensing and selling franchises under the Planet Fitness trade name; • Owning and operating fitness clubs under the Planet Fitness trade name; and • Selling fitness-related equipment to franchisee-owned clubs. In 2012 investment funds affiliated with TSG Consumer Partners, LLC (“TSG”), purchased interests in Pla-Fit Holdings. The Company was formed as a Delaware corporation on March 16, 2015 for the purpose of facilitating an initial public offering (the “IPO”) and related transactions in order to carry on the business of Pla-Fit Holdings, LLC and its subsidiaries (“Pla-Fit Holdings”). As of August 5, 2015, in connection with the recapitalization transactions, the Company became the sole managing member and holder of 100% of the voting power of Pla-Fit Holdings. Pla-Fit Holdings owns 100% of Planet Intermediate, LLC, which has no operations but is the 100% owner of Planet Fitness Holdings, LLC, a franchisor and operator of fitness clubs. With respect to the Company, Pla-Fit Holdings and Planet Intermediate, LLC, each entity owns nothing other than the respective entity below it in the corporate structure and each entity has no other material operations. The Company is a holding company whose principal asset is a controlling equity interest in the membership units (“Holdings Units”) in Pla-Fit Holdings. As the sole managing member of Pla-Fit Holdings, the Company operates and controls all of the business and affairs of Pla-Fit Holdings, and through Pla-Fit Holdings, conducts its business. As a result, the Company consolidates Pla-Fit Holdings’ financial results and reports a non-controlling interest related to the portion of Holdings Units not owned by the Company. As of September 30, 2024, the Company held 100.0% of the voting interest and approximately 99.4% of the economic interest in Pla-Fit Holdings and the owners of Holdings Units other than the Company (the “Continuing LLC Owners”) held the remaining 0.6% economic interest in Pla-Fit Holdings. As future exchanges of Holdings Units occur, the economic interest in Pla-Fit Holdings held by Planet Fitness, Inc. will increase.

Summary of significant accounti

Summary of significant accounting policies	9 Months Ended
Summary of significant accounting policies	Sep. 30, 2024
Accounting Policies [Abstract]
Summary of significant accounting policies	Summary of significant accounting policies (a) Basis of presentation and consolidation The accompanying unaudited interim condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”). Accordingly, these interim financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring adjustments) necessary for a fair presentation of the results of operations, financial position and cash flows for the periods presented have been reflected. All significant intercompany balances and transactions have been eliminated in consolidation. The condensed consolidated financial statements as of and for the three and nine months ended September 30, 2024 and 2023 are unaudited. The condensed consolidated balance sheet as of December 31, 2023 has been derived from the audited financial statements at that date but does not include all of the disclosures required by GAAP. These interim condensed consolidated financial statements should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2023 filed with the SEC on February 29, 2024. The Company’s significant interim accounting policies include the proportional recognition of national advertising fund expenses within interim periods. Operating results for the interim periods are not necessarily indicative of the results that may be expected for the full year ending December 31, 2024. (b) Use of estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. Although these estimates are based on management’s knowledge of current events and actions it may undertake in the future, they may ultimately differ from actual results. Significant areas where estimates and judgments are relied upon by management in the preparation of the condensed consolidated financial statements include revenue recognition, valuation of equity-based compensation awards, valuation of assets and liabilities acquired in business combinations, the evaluation of the recoverability of goodwill and long-lived assets, including intangible assets, allowance for expected credit losses, the present value of lease liabilities, income taxes, including deferred tax assets and liabilities, and the liability for the Company’s tax benefit arrangements. (c) Fair Value ASC 820, Fair Value Measurements and Disclosures , establishes a three-level valuation hierarchy for disclosure of fair value measurements. The valuation hierarchy is based upon the transparency of inputs to the valuation of an asset or liability as of the measurement date. Categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The three levels are defined as follows: Level 1—Inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or liabilities in active markets. Level 2—Inputs to the valuation methodology include quoted prices for similar assets and liabilities in active markets, and inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument. Level 3—Inputs to the valuation methodology are unobservable and significant to the fair value measurement. Certain of the Company’s financial instruments, including cash and cash equivalents, restricted cash, accounts receivable, accounts payable, accrued expenses and other current liabilities are carried at cost, which approximates their fair value because of their short-term nature. See Note 3 for investments that are measured at fair value on a recurring basis. The carrying value and estimated fair value of long-term debt were as follows: September 30, 2024 December 31, 2023 Carrying value Estimated fair value (1) Carrying value Estimated fair value (1) Long-term debt (1) $ 2,201,375 $ 2,141,443 $ 2,004,438 $ 1,829,286 (1) The estimated fair value of the Company’s fixed rate long-term debt is estimated primarily based on current bid prices for the long-term debt. Judgment is required to develop these estimates. As such, the fair value of long-term debt is classified within Level 2, as defined under GAAP. (d) Non-controlling interests Non-controlling interests represent third-party interests in certain of the Company’s subsidiaries. Allocation of net income or loss is generally based upon relative ownership interests held by equity owners in each subsidiary or based upon contractual arrangements. If such contractual arrangements are substantive and provide for a disproportionate allocation of economic returns among equity holders, the Company uses the hypothetical liquidation at book value (“HLBV”) method to allocate net income and loss of the subsidiary. The HLBV method is a balance sheet focused approach which measures each party’s capital account at each balance sheet date to determine the amount that the Company would receive if the subsidiary were to hypothetically liquidate its net assets at their carrying values determined in accordance with GAAP and distribute such hypothetical proceeds based on the liquidation rights and priorities defined in the contractual arrangement. Under the HLBV method, net income and losses of the subsidiary are attributed based on the change in each party’s capital account between the beginning and the end of the reporting period, after adjusting for capital contributions and distributions. The proportion of net income and losses attributed to non-controlling interests under the HLBV method is subject to change as the net assets in the subsidiary change. (e) Reclassification Certain amounts have been reclassified to conform to current year presentation. (f) Recent accounting pronouncements The FASB issued ASU No. 2023-07, Improvements to Reportable Segment Disclosures , in November 2023. The standard expands reportable segment disclosures by requiring disclosure of significant segment expenses that are regularly provided to the Chief Operating Decision Maker (“CODM”) and included within each reported measure of segment profit or loss, an amount and description of its composition for other segment items, and interim disclosures of a reportable segment’s profit or loss and assets. The new standard is effective for annual periods beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. The Company is currently evaluating the impact of adoption on our financial disclosures. The FASB issued ASU No. 2023-09, Improvements to Income Tax Disclosures , in December 2023. The standard requires disaggregated information about a reporting entity's effective tax rate reconciliation as well as information on income taxes paid. The standard is intended to benefit investors by providing more detailed income tax disclosures that would be useful in making capital allocation decisions and applies to all entities subject to income taxes. The new standard is effective for annual periods beginning after December 15, 2024. The Company is currently evaluating the impact of adoption on our financial disclosures.

Investments

Investments	9 Months Ended
Investments	Sep. 30, 2024
Investments, Debt and Equity Securities [Abstract]
Investments	Investments Marketable securities The following tables summarize the amortized cost, net unrealized gains and losses, fair value, and the level in the fair value hierarchy of the Company’s available-for-sale investments in marketable securities. As of September 30, 2024, the marketable securities had maturity dates that range from less than 1 month to approximately 23 months. Realized gains and losses were insignificant for the three and nine months ended September 30, 2024 and 2023. Amortized Cost Unrealized Gains, Net Fair Value (1) Level 1 Level 2 September 30, 2024 Cash equivalents Money market funds $ 1,260 $ — $ 1,260 $ 1,260 $ — Total cash equivalents 1,260 — 1,260 1,260 — Short-term marketable securities Commercial paper 17,731 33 17,764 — 17,764 Corporate debt securities 83,339 330 83,669 — 83,669 U.S. treasury securities 1,976 — 1,976 — 1,976 U.S. government agency securities 5,207 13 5,220 — 5,220 Total short-term marketable securities 108,253 376 108,629 — 108,629 Long-term marketable securities Corporate debt securities 52,616 418 53,034 — 53,034 U.S. government agency securities 2,500 1 2,501 — 2,501 Total long-term marketable securities 55,116 419 55,535 — 55,535 Total marketable securities $ 164,629 $ 795 $ 165,424 $ 1,260 $ 164,164 Amortized Cost Unrealized Gains (Losses), Net Fair Value (1) Level 1 Level 2 December 31, 2023 Cash equivalents Money market funds $ 761 $ — $ 761 $ 761 $ — U.S. treasury securities 2,997 1 2,998 — 2,998 Total cash equivalents 3,758 1 3,759 761 2,998 Short-term marketable securities Commercial paper 37,063 24 37,087 — 37,087 Corporate debt securities 34,632 (38) 34,594 — 34,594 U.S. government agency securities 3,210 10 3,220 — 3,220 Total short-term marketable securities 74,905 (4) 74,901 — 74,901 Long-term marketable securities Corporate debt securities 47,388 328 47,716 — 47,716 U.S. government agency securities 3,151 19 3,170 — 3,170 Total long-term marketable securities 50,539 347 50,886 — 50,886 Total marketable securities $ 129,202 $ 344 $ 129,546 $ 761 $ 128,785 (1) Fair values were determined using market prices obtained from third-party pricing sources. For marketable securities with unrealized loss positions, the Company does not intend to sell these securities before maturity and it is more likely than not that the Company will hold these securities until maturity or a recovery of the cost basis and they are therefore all categorized as available for sale. No allowance for credit losses was recorded for these securities as of September 30, 2024 and December 31, 2023. Held-to-maturity debt security As of September 30, 2024, the Company’s debt security investment consists of redeemable preferred shares that are accounted for as a held-to-maturity investment. The Company’s investment is measured at amortized cost within investments in the condensed consolidated balance sheets. The Company reviews its held-to-maturity securities for expected credit losses under ASC Topic 326, Financial Instruments – Credit Losses , on an ongoing basis. The Company utilized probability-of-default (“PD”) and loss-given-default (“LGD”) methodologies to calculate the allowance for expected credit losses. The Company derived its estimates using historical lifetime loss information for assets with similar risk characteristics, adjusted for management’s expectations. Adjustments for management’s expectations were based on the investee’s recent financial results, current financial position, and forward-looking financial forecasts. Based upon its analysis, the Company recorded a credit loss expense of $292 and a gain on the reversal of credit loss allowance of $101 during the three months ended September 30, 2024 and 2023, respectively, and a credit loss expense of $849 and a gain on the reversal of credit loss allowance of $6 during the nine months ended September 30, 2024 and 2023, respectively, on the adjustment of its allowance for credit losses within other (gains) losses, net on the condensed consolidated statements of operations. The amortized cost, including accrued dividends, of the Company’s held-to-maturity debt security investment was $31,961 and $30,343 and the allowance for expected credit losses was $18,538 and $17,689, as of September 30, 2024 and December 31, 2023, respectively. The amortized cost, net of the allowance for expected credit losses, approximates fair value. The Company recognized dividend income of $553 and $511 during the three months ended September 30, 2024 and 2023, respectively, and $1,618 and $1,490 during the nine months ended September 30, 2024 and 2023, respectively, within other income, net on the condensed consolidated statements of operations. The Company’s held-to-maturity investment has a contractual maturity in 2026. A roll forward of the Company’s allowance for expected credit losses on its held-to-maturity investment is as follows: Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Beginning allowance for expected credit losses $ 18,246 $ 15,052 $ 17,689 $ 14,957 Loss (gain) on adjustment of allowance for expected credit losses 292 (101) 849 (6) Write-offs, net of recoveries — — — — Ending allowance for expected credit losses $ 18,538 $ 14,951 $ 18,538 $ 14,951 Equity method investments For the following investments, the Company recorded its proportionate share of the investees’ earnings, prepared in accordance with GAAP, on a one-month lag, with an adjustment to eliminate unrealized profits on intra-entity sales, if any, and the amortization of basis differences, within losses from equity-method investments, net of tax on the condensed consolidated statements of operations. As of September 30, 2024, the Company determined that no impairment of its equity method investments existed. As of September 30, 2024 and December 31, 2023, the Company held a 21.8% ownership interest in Bravo Fit Holdings Pty Ltd, a franchisee of the Company and club operator in Australia, which is deemed to be a related party, for a total investment carrying value of $12,080 and $13,220, respectively. The difference between the carrying amount of the Company’s investment and the underlying amount of equity in net assets of the investment was $5,287 and $6,812 as of September 30, 2024 and December 31, 2023, respectively. This basis difference is primarily attributable to intangible assets, which are being amortized on a straight-line basis over a weighted-average life of 9 years, and equity method goodwill. The Company’s proportionate share of the losses in accordance with the equity method was $674 and $94 for the three months ended September 30, 2024 and 2023, respectively, and $1,140 and $432 for the nine months ended September 30, 2024 and 2023, respectively, which included the amortization of basis differences of $66, $65, $198 and $195, respectively. As of September 30, 2024 and December 31, 2023, the Company held a 33.2% ownership interest in Planet Fitmex, LLC, a franchisee of the Company and club operator in Mexico, which is deemed to be a related party and classified as an equity method investment as a result of its organizational structure, for a total investment carrying value of $49,575 and $51,633, respectively. The difference between the carrying amount of the Company’s investment and the underlying amount of equity in net assets of the investment was $20,060 and $17,458 as of September 30, 2024 and December 31, 2023, respectively. This basis difference is primarily attributable to intangible assets, which are being amortized on a straight-line basis over a weighted-average life of 9 years, and equity method goodwill. The Company’s proportionate share of the losses in accordance with the equity method was $108 and $148 for the three months ended September 30, 2024 and 2023, respectively, and $2,058 and $148 for the nine months ended September 30, 2024 and 2023, respectively, which included the amortization of basis differences of $174, $56, $511, and $56 respectively.

Acquisition

Acquisition	9 Months Ended
Acquisition	Sep. 30, 2024
Business Combination, Asset Acquisition, and Joint Venture Formation [Abstract]
Acquisition	Acquisition Florida Acquisition On April 16, 2023, the Company purchased from one of its franchisees a majority of the assets associated with four franchisee clubs operating in Florida (the “Florida Acquisition”) for cash consideration of $26,264. As a result of the transaction, the Company incurred a loss on unfavorable reacquired franchise rights of $110, which is included in other losses, net on the condensed consolidated statement of operations. The loss incurred reduced the net purchase price to $26,154. The Company financed the purchase through cash on hand. The acquired clubs are included in the Corporate-owned clubs segment. The allocation of the purchase consideration was as follows: Amount Property and equipment $ 3,851 Right of use assets 5,424 Other long-term assets 95 Intangible assets 6,880 Goodwill 14,812 Deferred revenue (687) Other current liabilities (17) Lease liabilities (4,204) Total $ 26,154 The goodwill created through the purchase is attributable to the assumed future value of the cash flows from the clubs acquired. The goodwill is amortizable and deductible for tax purposes over 15 years . The following table sets forth the components of identifiable intangible assets acquired in the Florida Acquisition and their estimated useful lives in years as of the date of the acquisition: Fair value Useful life Reacquired franchise rights (1) $ 6,650 6.8 Customer relationships (2) 230 6.0 Total intangible assets subject to amortization $ 6,880 (1) Reacquired franchise rights represent the fair value of the reacquired franchise agreements using the income approach, specifically, the multi-period excess earnings method. (2) Customer relationships represent the fair value of the existing contractual customer relationships using the income approach, specifically, the multi-period excess earnings method. The acquisition did not have a material effect on the results of operations of the Company.

Goodwill and intangible assets

Goodwill and intangible assets	9 Months Ended
Goodwill and intangible assets	Sep. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and intangible assets	Goodwill and intangible assets Goodwill and related changes in its carrying amount were as follows: Amount Goodwill at December 31, 2023 $ 717,502 Acquisition 1,572 Foreign currency translation 53 Goodwill at September 30, 2024 $ 719,127 The Company completed an immaterial acquisition of an operating entity in Spain during the first quarter of fiscal 2024, which resulted in the addition of $1,572 in the carrying value of goodwill. During the nine months ended September 30, 2024, the Company issued stock of the subsidiary holding the operating entity in Spain to a third-party investor which resulted in the creation of a non-controlling interest of such subsidiary holding company and the subsidiary operating entity. The Company intends to operate corporate-owned clubs through this entity. A summary of intangible assets is as follows: September 30, 2024 December 31, 2023 Gross Accumulated Net carrying Gross Accumulated Net carrying Finite-lived intangible assets: Customer relationships $ 199,043 $ (180,952) $ 18,091 $ 199,043 $ (169,155) $ 29,888 Reacquired franchise rights 274,708 (105,163) 169,545 274,708 (78,689) 196,019 Total finite-lived intangible assets 473,751 (286,115) 187,636 473,751 (247,844) 225,907 Indefinite-lived intangible assets: Trade and brand names 146,600 — 146,600 146,600 — 146,600 Total intangible assets $ 620,351 $ (286,115) $ 334,236 $ 620,351 $ (247,844) $ 372,507 The Company determined that no impairment charges were required during any periods presented. Amortization expense related to the finite-lived intangible assets totaled $12,768 and $12,965 for the three months ended September 30, 2024 and 2023, respectively, and $38,304 and $38,517 for the nine months ended September 30, 2024 and 2023, respectively. The anticipated amortization expense related to intangible assets to be recognized in future periods as of September 30, 2024 is as follows: Amount Remainder of 2024 $ 10,918 2025 36,713 2026 32,079 2027 27,956 2028 27,300 Thereafter 52,670 Total $ 187,636

Long-term debt

Long-term debt	9 Months Ended
Long-term debt	Sep. 30, 2024
Debt Disclosure [Abstract]
Long-term debt	Long-term debt Long-term debt consists of the following: September 30, 2024 December 31, 2023 2018-1 Class A-2-II notes $ — $ 592,187 2019-1 Class A-2 notes 523,875 528,000 2022-1 Class A-2-I notes 414,375 417,563 2022-1 Class A-2-II notes 463,125 466,688 2024-1 Class A-2-I notes 425,000 — 2024-1 Class A-2-II notes 375,000 — Total debt, excluding deferred financing costs 2,201,375 2,004,438 Deferred financing costs, net of accumulated amortization (26,599) (20,814) Total debt, net 2,174,776 1,983,624 Current portion of long-term debt 22,500 20,750 Long-term debt, net of current portion $ 2,152,276 $ 1,962,874 Future principal payments of long-term debt as of September 30, 2024 are as follows: Amount Remainder of 2024 $ 5,625 2025 22,500 2026 427,313 2027 18,250 2028 18,250 Thereafter 1,709,437 Total $ 2,201,375 On August 1, 2018, Planet Fitness Master Issuer LLC (the “Master Issuer”), a limited-purpose, bankruptcy remote, wholly-owned indirect subsidiary of Pla-Fit Holdings, LLC, entered into a base indenture and a related supplemental indenture (collectively, the “2018 Indenture”) under which the Master Issuer may issue multiple series of notes. On the same date, the Master Issuer issued Series 2018-1 4.262% Fixed Rate Senior Secured Notes, Class A-2-I (the “2018 Class A-2-I Notes”) with an initial principal amount of $575,000 and Series 2018-1 4.666% Fixed Rate Senior Secured Notes, Class A-2-II (the “2018 Class A-2-II Notes” and, together with the 2018 Class A-2-I Notes, the “2018 Notes”) with an initial principal amount of $625,000. In connection with the issuance of the 2018 Notes, the Master Issuer also entered into a revolving financing facility that allows for the incurrence of up to $75,000 in revolving loans and/or certain letters of credit (the “Letters of Credit”) under the Master Issuer’s Series 2018-1 Variable Funding Senior Notes, Class A-1 (the “2018 Variable Funding Notes”). The Company fully drew down on the 2018 Variable Funding Notes on March 20, 2020. On December 3, 2019, the Master Issuer issued Series 2019-1 3.858% Fixed Rate Senior Secured Notes, Class A-2 (the “2019 Notes”) with an initial principal amount of $550,000. The 2019 Notes were issued under the 2018 Indenture and a related supplemental indenture dated December 3, 2019 (together, the “2019 Indenture”). On February 10, 2022, the Company completed a prepayment in full of its 2018 Class A-2-I Notes and an issuance of Series 2022-1 3.251% Fixed Rate Senior Secured Notes, Class A-2-I with an initial principal amount of $425,000 and Series 2022-1 4.008% Fixed Rate Senior Secured Notes, Class A-2-II with an initial principal amount of $475,000 (the “2022 Notes”), and also entered into a new revolving financing facility that allows for the issuance of up to $75,000 in Variable Funding Notes (“2022 Variable Funding Notes”) and certain Letters of Credit (the issuance of such notes, the “Series 2022-I Issuance”). The 2022 Notes were issued under the 2018 Indenture and a related supplemental indenture dated February 10, 2022 (together, the “2022 Indenture”). On June 12, 2024, the Company completed a prepayment in full of its 2018 Class A-2-II Notes and an issuance of Series 2024-1 5.765% Fixed Rate Senior Secured Notes, Class A-2-I with an initial principal amount of $425,000 and Series 2024-1 6.237% Fixed Rate Senior Secured Notes, Class A-2-II with an initial principal amount of $375,000 (the “2024 Notes” and, together with the 2018 Notes, 2019 Notes and 2022 Notes, the “Notes”). The 2024 Notes were issued under the 2018 Indenture and a related supplemental indenture dated June 12, 2024 (together, with the 2019 Indenture and 2022 Indenture, the “Indenture”). Together, the Notes and the 2022 Variable Funding Notes will be referred to as the “Securitized Senior Notes”. The Notes were issued in securitization transactions pursuant to which most of the Company’s domestic revenue-generating assets, consisting principally of franchise-related agreements, certain corporate-owned club assets, equipment supply agreements and intellectual property and license agreements for the use of intellectual property, were assigned to the Master Issuer and certain other limited-purpose, bankruptcy remote, wholly-owned indirect subsidiaries of the Company that act as guarantors of the outstanding Securitized Senior Notes and that have pledged substantially all of their assets to secure the Securitized Senior Notes. Interest and principal payments on the outstanding Notes are payable on a quarterly basis. The requirement to make such quarterly principal payments on the Notes is subject to certain financial conditions set forth in the Indenture. The legal final maturity date of the 2019 Notes is in December 2049, but it is anticipated that, unless earlier prepaid to the extent permitted under the Indenture, the 2019 Notes will be repaid in or prior to December 2029 (the “2019 Notes Anticipated Repayment Date”). The legal final maturity date of the 2022 Notes is in February 2052, but it is anticipated that, unless earlier prepaid to the extent permitted under the Indenture, the 2022 Class A-2-I Notes will be repaid in or prior to December 2026 and the 2022 Class A-2-II Notes will be repaid in or prior to December 2031 (together, the “2022 Notes Anticipated Repayment Dates”). The legal final maturity date of the 2024 Notes is in June 2054, but it is anticipated that, unless earlier prepaid to the extent permitted under the Indenture, the 2024 Class A-2-I Notes will be repaid in or prior to June 2029 and the 2024 Class A-2-II Notes will be repaid in or prior to June 2034 (together, the “2024 Notes Anticipated Repayment Dates” and together with the 2019 Notes Anticipated Repayment Date and the 2022 Notes Anticipated Repayment Dates, the “Anticipated Repayment Dates”). If the Master Issuer has not repaid or refinanced the outstanding Notes prior to the respective Anticipated Repayment Dates, additional interest will accrue pursuant to the Indenture. If outstanding, the 2022 Variable Funding Notes will accrue interest at a variable interest rate based on (i) the prime rate, (ii) overnight federal funds rates, (iii) the secured overnight financing rate for U.S. Dollars, or (iv) with respect to advances made by conduit investors, the weighted average cost of, or related to, the issuance of commercial paper allocated to fund or maintain such advances, in each case plus any applicable margin and as specified in the 2022 Variable Funding Notes. There is a commitment fee on the unused portion of the 2022 Variable Funding Notes of 0.5% based on utilization. It is anticipated that the principal and interest on the 2022 Variable Funding Notes, if any, will be repaid in full on or prior to December 2026, subject to two additional one-year extension options. Following the anticipated repayment date (and any extensions thereof), additional interest will accrue on the 2022 Variable Funding Notes equal to 5.0% per year. In connection with the issuance of the 2019 Notes, 2022 Notes and 2024 Notes, the Company incurred debt issuance costs of $10,577, $16,193 and $12,055, respectively. The debt issuance costs are being amortized to interest expense through the Anticipated Repayment Dates of the Notes utilizing the effective interest rate method. As a result of the repayment of the 2018 Class A-2-II Notes prior to the Anticipated Repayment Date, the Company recorded a loss on early extinguishment of debt of $2,285 within interest expense on the condensed consolidated statements of operations, consisting of the write-off of remaining unamortized deferred financing costs related to the issuance of the 2018 Class A-2-II Notes. The outstanding Securitized Senior Notes are subject to covenants and restrictions customary for transactions of this type, including (i) that the Master Issuer maintains specified reserve accounts to be used to make required payments in respect of the Securitized Senior Notes, (ii) provisions relating to optional and mandatory prepayments and the related payment of specified amounts, including specified make-whole payments in the case of the Notes under certain circumstances, (iii) certain indemnification payments in the event, among other things, the assets pledged as collateral for the Securitized Senior Notes are in stated ways defective or ineffective, (iv) a cap on non-securitized indebtedness of $50,000 (provided that the Company may incur non-securitized indebtedness in excess of such amount, subject to the leverage ratio cap described below, under certain conditions, including if the relevant lenders execute a non-disturbance agreement that acknowledges the bankruptcy-remote status of the Master Issuer and its subsidiaries and of their respective assets), (v) a leverage ratio cap incurrence test on the Company of 7.0x (calculated without regard for any indebtedness subject to the $50,000 cap) and (vi) covenants relating to recordkeeping, access to information and similar matters. Pursuant to a parent company support agreement, the Company has agreed to cause its subsidiary to perform each of its obligations (including any indemnity obligations) and duties under the Management Agreement and under the contribution agreements entered into in connection with the securitized financing facility, in each case as and when due. To the extent that such subsidiary has not performed any such obligation or duty within the prescribed time frame after such obligation or duty was required to be performed, the Company has agreed to either (i) perform such obligation or duty or (ii) cause such obligations or duties to be performed on the Company’s behalf. The outstanding Securitized Senior Notes are also subject to customary rapid amortization events provided for in the Indenture, including events tied to failure to maintain stated debt service coverage ratios, certain manager termination events, an event of default, and the failure to repay or refinance the Notes on the applicable scheduled Anticipated Repayment Dates. The outstanding Securitized Senior Notes are also subject to certain customary events of default, including events relating to non-payment of required interest, principal, or other amounts due on or with respect to the Securitized Senior Notes, failure to comply with covenants within certain time frames, certain bankruptcy events, breaches of specified representations and warranties, failure of security interests to be effective, and certain judgments. In accordance with the Indenture, certain cash accounts have been established with the Indenture trustee (the “Trustee”) for the benefit of the trustee and the noteholders, and are restricted in their use. The Company holds restricted cash which primarily represents cash collections held by the Trustee, interest, principal, and commitment fee reserves held by the Trustee related to the Securitized Senior Notes. As of September 30, 2024, the Company had restricted cash held by the Trustee of $67,766.

Leases

Leases	9 Months Ended
Leases	Sep. 30, 2024
Leases [Abstract]
Leases	Leases The right-of-use assets and lease liabilities for operating and finance leases, including their classification in the condensed consolidated balance sheets, were as follows: Leases Balance Sheet Classification September 30, 2024 December 31, 2023 Assets Operating Right of use asset, net $ 400,246 $ 381,010 Finance Property and equipment, net 82 179 Total lease assets $ 400,328 $ 381,189 Liabilities Current: Operating Other current liabilities $ 35,230 $ 33,849 Finance Other current liabilities 71 125 Noncurrent: Operating Lease liabilities, net of current portion 408,588 381,589 Finance Other liabilities 15 63 Total lease liabilities $ 443,904 $ 415,626 Weighted-average remaining lease term - operating leases 7.9 years 8.0 years Weighted-average discount rate - operating leases 5.6% 5.4% The components of lease cost were as follows: Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Operating lease cost $ 18,139 $ 16,467 $ 54,142 $ 47,154 Variable lease cost 6,828 5,917 18,980 16,936 Total lease cost $ 24,967 $ 22,384 $ 73,122 $ 64,090 The Company’s costs related to short-term leases, those with a duration between one and twelve months, were immaterial. Supplemental disclosures of cash flow information related to leases were as follows: Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Cash paid for lease liabilities $ 14,319 $ 13,877 $ 44,829 $ 41,985 Operating lease ROU assets obtained in exchange for operating lease liabilities, excluding acquisitions $ 18,964 $ 38,683 $ 55,494 $ 59,410 Operating lease ROU assets obtained in exchange for operating lease liabilities through acquisitions $ — $ — $ — $ 4,204 Maturities of lease liabilities as of September 30, 2024 were as follows: Amount Remainder of 2024 $ 6,164 2025 71,242 2026 77,446 2027 77,054 2028 74,136 Thereafter 252,900 Total lease payments $ 558,942 Less: imputed interest (115,038) Present value of lease liabilities $ 443,904 As of September 30, 2024, future operating lease payments exclude approximately $36,861 of legally binding minimum lease payments for leases signed but not yet commenced.
Leases	Leases The right-of-use assets and lease liabilities for operating and finance leases, including their classification in the condensed consolidated balance sheets, were as follows: Leases Balance Sheet Classification September 30, 2024 December 31, 2023 Assets Operating Right of use asset, net $ 400,246 $ 381,010 Finance Property and equipment, net 82 179 Total lease assets $ 400,328 $ 381,189 Liabilities Current: Operating Other current liabilities $ 35,230 $ 33,849 Finance Other current liabilities 71 125 Noncurrent: Operating Lease liabilities, net of current portion 408,588 381,589 Finance Other liabilities 15 63 Total lease liabilities $ 443,904 $ 415,626 Weighted-average remaining lease term - operating leases 7.9 years 8.0 years Weighted-average discount rate - operating leases 5.6% 5.4% The components of lease cost were as follows: Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Operating lease cost $ 18,139 $ 16,467 $ 54,142 $ 47,154 Variable lease cost 6,828 5,917 18,980 16,936 Total lease cost $ 24,967 $ 22,384 $ 73,122 $ 64,090 The Company’s costs related to short-term leases, those with a duration between one and twelve months, were immaterial. Supplemental disclosures of cash flow information related to leases were as follows: Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Cash paid for lease liabilities $ 14,319 $ 13,877 $ 44,829 $ 41,985 Operating lease ROU assets obtained in exchange for operating lease liabilities, excluding acquisitions $ 18,964 $ 38,683 $ 55,494 $ 59,410 Operating lease ROU assets obtained in exchange for operating lease liabilities through acquisitions $ — $ — $ — $ 4,204 Maturities of lease liabilities as of September 30, 2024 were as follows: Amount Remainder of 2024 $ 6,164 2025 71,242 2026 77,446 2027 77,054 2028 74,136 Thereafter 252,900 Total lease payments $ 558,942 Less: imputed interest (115,038) Present value of lease liabilities $ 443,904 As of September 30, 2024, future operating lease payments exclude approximately $36,861 of legally binding minimum lease payments for leases signed but not yet commenced.

Revenue from contract with cust

Revenue from contract with customers	9 Months Ended
Revenue from contract with customers	Sep. 30, 2024
Revenue from Contract with Customer [Abstract]
Revenue from contract with customers	Revenue from contracts with customers Contract liabilities consist primarily of deferred revenue resulting from initial and renewal franchise fees and area development agreement (“ADA”) fees paid by franchisees, as well as transfer fees, which are generally recognized on a straight-line basis over the term of the underlying franchise agreement, and national advertising fund (“NAF”) revenue collected in advance of satisfaction of the Company’s performance obligation. Also included are corporate-owned club enrollment fees, annual fees and monthly fees as well as deferred equipment rebates relating to its equipment business. The Company classifies these contract liabilities as deferred revenue in its condensed consolidated balance sheets. The following table reflects the change in contract liabilities between December 31, 2023 and September 30, 2024: Amount Balance at December 31, 2023 $ 91,638 Revenue recognized that was included in the contract liability at the beginning of the year (56,187) Increase, excluding amounts recognized as revenue during the period 65,644 Balance at September 30, 2024 $ 101,095 The following table illustrates estimated revenues expected to be recognized in the future related to performance obligations that are unsatisfied, or partially unsatisfied, as of September 30, 2024. The Company has elected to exclude short-term contracts, sales and usage-based royalties and any other variable consideration recognized on an “as invoiced” basis. Contract liabilities to be recognized in: Amount Remainder of 2024 $ 42,713 2025 26,168 2026 4,313 2027 3,612 2028 3,302 Thereafter 20,987 Total $ 101,095 Equipment deposits received in advance of delivery as of September 30, 2024 were $10,345 and are expected to be recognized as revenue within the next 12 months.

Related party transactions

Related party transactions	9 Months Ended
Related party transactions	Sep. 30, 2024
Related Party Transactions [Abstract]
Related party transactions	Related party transactions Activity with franchisees considered to be related parties is summarized below: Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Franchise revenue - former interim CEO $ 1,051 $ 958 $ 3,383 $ 2,882 Franchise revenue - other 947 656 2,616 1,206 Equipment revenue - former interim CEO 639 1,294 1,738 2,305 Equipment revenue - other 3,014 1,641 7,358 1,641 Total revenue from related parties $ 5,651 $ 4,549 $ 15,095 $ 8,034 The Company had $1,099 and $2,916 of accounts receivable attributable to related parties as of September 30, 2024 and December 31, 2023, respectively. Additionally, the Company had deferred ADA and franchise agreement revenue from related parties of $627 and $719 as of September 30, 2024 and December 31, 2023, respectively, of which $129 and $142 is from a franchisee in which the Company’s former interim CEO has a financial interest. As of September 30, 2024 and December 31, 2023, the Company had $87,111 and $98,494, respectively, payable to related parties pursuant to tax benefit arrangements. See Note 12 for further discussion of these arrangements. The Company provides administrative services to the NAF and typically charges the NAF a fee for providing these services. The services provided, which include accounting, information technology, data processing, product development, legal and administrative support, and other operating expenses, amounted to $1,657 and $893 for the three months ended September 30, 2024 and 2023, respectively, and $4,455 and $2,679 for the nine months ended September 30, 2024 and 2023, respectively. The Company incurred approximately $63 and $427 for the three and nine months ended September 30, 2023 for corporate travel to a third-party company which is affiliated with our former CEO, which is included within selling, general and administrative expense on the condensed consolidated statements of operations. A member of the Company’s board of directors, who is also the Company’s former interim CEO and a franchisee, holds an approximate 10.5% ownership of a company that sells amenity tracking compliance software to Planet Fitness clubs to which the Company made payments of approximately $102 and $101 for the three months ended September 30, 2024 and 2023, respectively, and $273 and $270 for the nine months ended September 30, 2024 and 2023, respectively.

Stockholders' equity

Stockholders' equity	9 Months Ended
Stockholders' equity	Sep. 30, 2024
Equity [Abstract]
Stockholders' equity	Stockholders’ equity Pursuant to the exchange agreement between the Company and the Continuing LLC Owners, the Continuing LLC Owners (or certain permitted transferees thereof) have the right, from time to time and subject to the terms of the exchange agreement, to exchange their Holdings Units, along with a corresponding number of shares of Class B common stock, for shares of Class A common stock (or cash at the option of the Company) on a one-for-one basis, subject to customary conversion rate adjustments for stock splits, stock dividends, reclassifications and similar transactions. In connection with any exchange of Holdings Units for shares of Class A common stock by a Continuing LLC Owner, the number of Holdings Units held by the Company is correspondingly increased as it acquires the exchanged Holdings Units, and a corresponding number of shares of Class B common stock are canceled. During the three and nine months ended September 30, 2024, certain existing holders of Holdings Units exercised their exchange rights and exchanged 162,324 and 908,960 Holdings Units for 162,324 and 908,960 newly-issued shares of Class A common stock. Simultaneously, and in connection with these exchanges, 162,324 and 908,960 shares of Class B common stock were surrendered by the holders of Holdings Units that exercised their exchange rights and canceled. Additionally, in connection with these exchanges, Planet Fitness, Inc. received 162,324 and 908,960 Holdings Units, increasing its total ownership interest in Pla-Fit Holdings. As a result of the above transactions and the share repurchases discussed below, as of September 30, 2024: • Holders of Class A common stock owned 84,103,670 shares of Class A common stock, representing 99.4% of the voting power in the Company and, through the Company, 84,103,670 Holdings Units representing 99.4% of the economic interest in Pla-Fit Holdings; and • the Continuing LLC Owners collectively owned 488,207 Holdings Units, representing 0.6% of the economic interest in Pla-Fit Holdings, and 488,207 shares of Class B common stock, representing 0.6% of the voting power in the Company. Share repurchase program 2022 share repurchase program On November 4, 2022, the Company’s board of directors approved a share repurchase program of up to $500,000, which replaced the 2019 share repurchase program. On June 12, 2024, the Company entered into a $280,000 accelerated share repurchase agreement (the “ASR Agreement”) with Citibank, N.A. (the “Bank”). Pursuant to the terms of the ASR Agreement, on June 14, 2024, the Company paid the Bank $280,000 in cash and received 3,090,507 shares of the Company’s Class A common stock, which were retired, and the Company recorded an increase to accumulated deficit of $224,000, representing 80% of the total ASR Agreement value based on the closing price of the Company’s Class A common stock on the commencement date of the transaction. Final settlement of the ASR Agreement occurred on September 16, 2024. At final settlement, the Bank delivered 668,432 additional shares of the Company’s Class A common stock, which were retired by the Company. The final number of shares repurchased was determined based on the volume-weighted average stock price of the Company’s Class A common stock of $76.88 during the term of the transaction, less a discount and subject to adjustments pursuant to the terms and conditions of the ASR Agreement. The ASR Agreement had been evaluated as an unsettled forward contract indexed to our Class A common stock, with $56,000 classified as an increase to accumulated deficit at the original date of payment. Additionally, prior to the ASR Agreement, during the nine months ended September 30, 2024, the Company repurchased and retired 313,834 shares of Class A common stock for a total cost of $20,005. A share repurchase excise tax of $2,618 was recorded in connection with the Company’s share repurchases during the nine months ended September 30, 2024. 2024 share repurchase program On June 13, 2024, the Company’s board of directors approved a share repurchase program of up to $500,000 (the “2024 Share Repurchase Program”) to replace the 2022 share repurchase program contingent upon the completion of the ASR Agreement. The new share repurchase program became effective on September 16, 2024 upon the completion of the ASR Agreement. As of September 30, 2024, there is $500,000 remaining under the 2024 Share Repurchase Program. The timing of purchases and amount of stock repurchased are subject to the Company’s discretion and dependent upon market and business conditions, the Company’s general working capital needs, stock price, applicable legal requirements and other factors. The ability to repurchase shares at any particular time is also subject to the terms of the Indenture governing the Securitized Senior Notes. Purchases may be effected through one or more open market transactions, privately negotiated transactions, transactions structured through investment banking institutions, or a combination of the foregoing. Preferred stock The Company had 50,000,000 shares of preferred stock authorized and none issued or outstanding as of September 30, 2024 and December 31, 2023.

Earnings per share

Earnings per share	9 Months Ended
Earnings per share	Sep. 30, 2024
Earnings Per Share [Abstract]
Earnings per share	Earnings per share Basic earnings per share of Class A common stock is computed by dividing net income attributable to Planet Fitness, Inc. by the weighted-average number of shares of Class A common stock outstanding. Diluted earnings per share of Class A common stock is computed by dividing net income attributable to Planet Fitness, Inc. by the weighted-average number of shares of Class A common stock outstanding adjusted to give effect to potentially dilutive securities. Shares of the Company’s Class B common stock do not share in the earnings attributable to Planet Fitness, Inc. and are therefore not participating securities. As such, separate presentation of basic and diluted earnings per share of Class B common stock under the two-class method has not been presented. Shares of the Company’s Class B common stock are, however, considered potentially dilutive shares of Class A common stock because shares of Class B common stock, together with the related Holdings Units, are exchangeable into shares of Class A common stock on a one-for-one basis. The following table sets forth reconciliations of the numerators and denominators used to compute basic and diluted earnings per share of Class A common stock: Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Numerator Net income $ 42,395 $ 41,324 $ 126,680 $ 110,272 Less: net income attributable to non-controlling interests 386 2,190 1,722 7,299 Net income attributable to Planet Fitness, Inc. $ 42,009 $ 39,134 $ 124,958 $ 102,973 Denominator Weighted-average shares of Class A common stock outstanding - basic 84,569,504 84,609,522 86,090,290 84,557,902 Effect of dilutive securities: Stock options 38,017 212,953 117,080 239,709 Restricted stock units 72,665 48,282 48,994 64,347 Performance stock units 47,639 15,562 32,720 8,354 Weighted-average shares of Class A common stock outstanding - diluted 84,727,825 84,886,319 86,289,084 84,870,312 Earnings per share of Class A common stock - basic $ 0.50 $ 0.46 $ 1.45 $ 1.22 Earnings per share of Class A common stock - diluted $ 0.50 $ 0.46 $ 1.45 $ 1.21 The number of weighted-average common stock equivalents excluded from the computation of diluted net income per share because either the effect would have been anti-dilutive were as follows: Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Class B common stock 532,058 3,533,885 811,748 4,236,271 Stock options — 307,606 3,503 250,595 Restricted stock units — 968 2,229 5,684 Performance stock units 29 36,717 2,055 1,981 Total 532,087 3,879,176 819,535 4,494,531

Income taxes

Income taxes	9 Months Ended
Income taxes	Sep. 30, 2024
Income Tax Disclosure [Abstract]
Income taxes	Income taxes The Company is the sole managing member of Pla-Fit Holdings, which is treated as a partnership for U.S. federal and certain state and local income taxes. As a partnership, Pla-Fit Holdings is not subject to U.S. federal and certain state and local income taxes. Any taxable income or loss generated by Pla-Fit Holdings is passed through to and included in the taxable income or loss of its members, including the Company, on a pro-rata basis. Planet Fitness, Inc. is subject to U.S. federal income taxes, in addition to state and local income taxes with respect to the allocable share of any taxable income of Pla-Fit Holdings. The Company’s effective tax rate was 27.7% and 24.5% for the three months ended September 30, 2024 and 2023, respectively, and 27.7% and 26.0% for the nine months ended September 30, 2024 and 2023, respectively, which differed from the U.S. federal statutory rate of 21% primarily due to state and local taxes and non-deductible expenses. The Company is also subject to taxes in foreign jurisdictions. Net deferred tax assets of $479,890 and $502,544 as of September 30, 2024 and December 31, 2023, respectively, relate primarily to the tax effects of temporary differences in the book basis as compared to the tax basis of the investment in Pla-Fit Holdings as a result of the secondary offerings, other exchanges, recapitalization transactions and the IPO. As of September 30, 2024 and December 31, 2023, the total liability related to uncertain tax positions was $278 and $273, respectively. The Company recognizes accrued interest and penalties, if applicable, related to unrecognized tax benefits in income tax expense. Interest and penalties for the three and nine months ended September 30, 2024 and 2023 were not material. Tax benefit arrangements The Company’s acquisition of Holdings Units in connection with the IPO and future and certain past exchanges of Holdings Units for shares of the Company’s Class A common stock (or cash at the option of the Company) are expected to produce and have produced favorable tax attributes. In connection with the IPO, the Company entered into two tax receivable agreements, pursuant to which, the Company is required to make payments to certain holders of equity interests or their successors-in-interest (“TRA Holders”). Under the first of those arrangements, the Company generally is required to pay certain existing and previous equity owners of Pla-Fit Holdings, LLC 85% of the applicable tax savings, if any, in U.S. federal and state income tax that the Company is deemed to realize as a result of certain tax attributes of their Holdings Units sold to the Company (or exchanged in a taxable sale) and that are created as a result of (i) the sales of their Holdings Units for shares of Class A common stock and (ii) tax benefits attributable to payments made under the tax receivable agreement (including imputed interest). Under the second tax receivable agreement, the Company generally is required to pay 85% of the amount of tax savings, if any, that the Company is deemed to realize as a result of the tax attributes of certain equity interests previously held by affiliates of TSG that resulted from TSG’s purchase of interests in Pla-Fit Holdings in 2012, and certain other tax benefits. Under both agreements, the Company generally retains the remaining 15% benefit of the applicable tax savings. In connection with the exchanges that occurred during the three and nine months ended September 30, 2024 and 2023, 162,324, 1,417,603, 908,960 and 3,412,312 Holding Units, respectively, were redeemed by the Continuing LLC Owners for newly-issued shares of Class A common stock, resulting in an increase in the tax basis of the net assets of Pla-Fit Holdings. As a result of the change in the Company’s ownership percentage of Pla-Fit Holdings that occurred in conjunction with the exchanges and issuance of Holding Units, the Company recorded a decrease of $223, $1,704, $1,106 and $4,358 to net deferred tax assets, during the three and nine months ended September 30, 2024 and 2023, respectively. As a result of these exchanges and other activity, the Company recognized deferred tax assets in the amount of $4,137, $24,999, $18,675 and $77,730, during the three and nine months ended September 30, 2024 and 2023, respectively, and corresponding tax benefit arrangement liabilities of $3,548, $14,762, $11,310 and $17,077 during the three and nine months ended September 30, 2024 and 2023, respectively, representing approximately 85% of the tax benefits due to the TRA Holders for shares exchanged that were subject to tax benefit arrangements. The offset to the entries recorded in connection with exchanges was to additional paid in capital within stockholders’ deficit. The Company had a liability of $477,411 and $495,662 as of September 30, 2024 and December 31, 2023, respectively, related to its projected obligations under the tax benefit arrangements. Projected future payments under the tax benefit arrangements were as follows: Amount Remainder of 2024 $ 13,392 2025 50,231 2026 52,314 2027 48,588 2028 42,149 Thereafter 270,737 Total $ 477,411

Commitments and contingencies

Commitments and contingencies	9 Months Ended
Commitments and contingencies	Sep. 30, 2024
Commitments and Contingencies Disclosure [Abstract]
Commitments and contingencies	Commitments and contingencies From time to time, and in the ordinary course of business, the Company is subject to various claims, charges, and litigation, such as employment-related claims and slip and fall cases. Mexico Acquisition On March 19, 2020, a franchisee in Mexico exercised a put option that required the Company to acquire their franchisee-owned clubs in Mexico. In February 2023, the Company and the franchisee agreed on a summary of terms for a settlement agreement and a release of all claims by all parties. In connection with the settlement agreement, the Company recorded an update to its estimated liability for the legal settlement of $6,250, inclusive of legal fees paid, within other losses, net on the condensed consolidated statement of operations during the nine months ended September 30, 2023. On October 20, 2023, the Company finalized its settlement with the franchisee in Mexico for $31,619, which included the acquisition by the Company of five clubs in Mexico and the settlement of all claims. The Company is not currently aware of any other legal proceedings or claims that the Company believes will have, individually or in the aggregate, a material adverse effect on the Company’s financial position or result of operations.

Segments

Segments	9 Months Ended
Segments	Sep. 30, 2024
Segment Reporting [Abstract]
Segments	Segments The Company has three reportable segments: (i) Franchise; (ii) Corporate-owned clubs; and (iii) Equipment. The Company’s operations are organized and managed by type of products and services and segment information is reported accordingly. The Company’s chief operating decision maker (the “CODM”) is its Chief Executive Officer. The CODM reviews financial performance and allocates resources by reportable segment. There have been no operating segments aggregated to arrive at the Company’s reportable segments. The Franchise segment includes operations related to the Company’s franchising business in the United States, Puerto Rico, Canada, Panama, Mexico and Australia. The Company records all revenues and expenses of the NAF within the franchise segment. The Corporate-owned clubs segment includes operations with respect to all corporate-owned clubs throughout the United States, Canada and Spain. The Equipment segment includes the sale of equipment to franchisee-owned clubs in the United States, Canada and Mexico. The accounting policies of the reportable segments are the same as those described in Note 2. The Company evaluates the performance of its segments and allocates resources to them based on revenue and earnings before interest, taxes, depreciation, and amortization, referred to as Segment EBITDA. Revenues for all operating segments include only transactions with unaffiliated customers and include no intersegment revenues. The tables below summarize the financial information for the Company’s reportable segments. Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Revenue Franchise segment revenue - U.S. $ 98,902 $ 95,209 $ 303,971 $ 281,836 Franchise segment revenue - International 3,513 2,956 10,254 7,855 Franchise segment total 102,415 98,165 314,225 289,691 Corporate-owned clubs segment - U.S. 126,716 112,080 372,061 329,505 Corporate-owned clubs segment - International 1,416 1,165 3,915 3,380 Corporate-owned clubs segment total 128,132 113,245 375,976 332,885 Equipment segment - U.S. 58,081 62,605 140,824 158,335 Equipment segment - International 3,618 3,536 10,179 5,329 Equipment segment total 61,699 66,141 151,003 163,664 Total revenue $ 292,246 $ 277,551 $ 841,204 $ 786,240 Franchise revenue includes revenue generated from placement services of $4,528 and $5,884 for the three months ended September 30, 2024 and 2023, respectively, and $11,780 and $13,760 for the nine months ended September 30, 2024 and 2023, respectively. Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Segment EBITDA Franchise $ 72,758 $ 67,583 $ 226,478 $ 198,418 Corporate-owned clubs 50,107 44,264 141,507 126,499 Equipment 18,487 16,434 41,822 39,134 Corporate and other (1) (20,408) (18,547) (57,191) (52,238) Total Segment EBITDA $ 120,944 $ 109,734 $ 352,616 $ 311,813 (1) Corporate and other primarily includes corporate overhead costs, such as payroll and related benefit costs and professional services which are not directly attributable to any individual segment. The following table reconciles total Segment EBITDA to income before taxes: Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Total Segment EBITDA $ 120,944 $ 109,734 $ 352,616 $ 311,813 Less: Depreciation and amortization 41,033 37,477 120,230 110,254 Other (expense) income, net (558) 148 1,132 631 Losses from equity-method investments, net of tax (782) (242) (3,198) (580) Income from operations 81,251 72,351 234,452 201,508 Interest income 5,610 4,245 16,687 12,339 Interest expense (26,603) (21,704) (72,569) (64,771) Other (expense) income, net (558) 148 1,132 631 Income before income taxes $ 59,700 $ 55,040 $ 179,702 $ 149,707 The following table summarizes the Company’s assets by reportable segment: September 30, 2024 December 31, 2023 Franchise $ 164,678 $ 169,836 Corporate-owned clubs 1,678,418 1,637,146 Equipment 196,198 176,249 Unallocated 1,008,887 986,462 Total consolidated assets $ 3,048,181 $ 2,969,693 The table above includes $12,127 and $3,609 of long-lived assets located in the Company’s international corporate-owned clubs as of September 30, 2024 and December 31, 2023, respectively. All other assets are located in the U.S. The following table summarizes the Company’s goodwill by reportable segment: September 30, 2024 December 31, 2023 Franchise $ 16,938 $ 16,938 Corporate-owned clubs 609,523 607,898 Equipment 92,666 92,666 Consolidated goodwill $ 719,127 $ 717,502

Corporate-owned and franchisee-

Corporate-owned and franchisee-owned clubs	9 Months Ended
Corporate-owned and franchisee-owned clubs	Sep. 30, 2024
Franchisors [Abstract]
Corporate-owned and franchisee-owned clubs	Corporate-owned and franchisee-owned clubs The following table shows changes in corporate-owned and franchisee-owned clubs: Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Franchisee-owned clubs: Clubs operated at beginning of period 2,358 2,230 2,319 2,176 New clubs opened 12 24 52 82 Clubs debranded, sold, closed or consolidated (1) (1) — (2) (4) Clubs operated at end of period 2,369 2,254 2,369 2,254 Corporate-owned clubs: Clubs operated at beginning of period 259 242 256 234 New clubs opened 9 2 12 6 Clubs acquired from franchisees — — — 4 Clubs operated at end of period 268 244 268 244 Total clubs: Clubs operated at beginning of period 2,617 2,472 2,575 2,410 New clubs opened 21 26 64 88 Clubs debranded, sold, closed or consolidated (1) (1) — (2) — Clubs operated at end of period 2,637 2,498 2,637 2,498 (1) The term “debranded” refers to a franchisee-owned club whose right to use the Planet Fitness brand and marks has been terminated in accordance with the franchise agreement. We retain the right to prevent debranded clubs from continuing to operate as fitness clubs. The term “consolidated” refers to the combination of a franchisee’s club with another club located in close proximity with our prior approval. This often coincides with an enlargement, re-equipment and/or refurbishment of the remaining club.

Summary of significant accoun_2

Summary of significant accounting policies (Policies)	9 Months Ended
Summary of significant accounting policies (Policies)	Sep. 30, 2024
Accounting Policies [Abstract]
Basis of presentation and consolidation	Basis of presentation and consolidation The accompanying unaudited interim condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”). Accordingly, these interim financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring adjustments) necessary for a fair presentation of the results of operations, financial position and cash flows for the periods presented have been reflected. All significant intercompany balances and transactions have been eliminated in consolidation. The condensed consolidated financial statements as of and for the three and nine months ended September 30, 2024 and 2023 are unaudited. The condensed consolidated balance sheet as of December 31, 2023 has been derived from the audited financial statements at that date but does not include all of the disclosures required by GAAP. These interim condensed consolidated financial statements should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2023 filed with the SEC on February 29, 2024. The Company’s significant interim accounting policies include the proportional recognition of national advertising fund expenses within interim periods. Operating results for the interim periods are not necessarily indicative of the results that may be expected for the full year ending December 31, 2024.
Use of estimates	Use of estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. Although these estimates are based on management’s knowledge of current events and actions it may undertake in the future, they may ultimately differ from actual results. Significant areas where estimates and judgments are relied upon by management in the preparation of the condensed consolidated financial statements include revenue recognition, valuation of equity-based compensation awards, valuation of assets and liabilities acquired in business combinations, the evaluation of the recoverability of goodwill and long-lived assets, including intangible assets, allowance for expected credit losses, the present value of lease liabilities, income taxes, including deferred tax assets and liabilities, and the liability for the Company’s tax benefit arrangements.
Fair Value	Fair Value ASC 820, Fair Value Measurements and Disclosures , establishes a three-level valuation hierarchy for disclosure of fair value measurements. The valuation hierarchy is based upon the transparency of inputs to the valuation of an asset or liability as of the measurement date. Categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The three levels are defined as follows: Level 1—Inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or liabilities in active markets. Level 2—Inputs to the valuation methodology include quoted prices for similar assets and liabilities in active markets, and inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument. Level 3—Inputs to the valuation methodology are unobservable and significant to the fair value measurement.
Non-controlling interests	Non-controlling interests Non-controlling interests represent third-party interests in certain of the Company’s subsidiaries. Allocation of net income or loss is generally based upon relative ownership interests held by equity owners in each subsidiary or based upon contractual arrangements. If such contractual arrangements are substantive and provide for a disproportionate allocation of economic returns among equity holders, the Company uses the hypothetical liquidation at book value (“HLBV”) method to allocate net income and loss of the subsidiary. The HLBV method is a balance sheet focused approach which measures each party’s capital account at each balance sheet date to determine the amount that the Company would receive if the subsidiary were to hypothetically liquidate its net assets at their carrying values determined in accordance with GAAP and distribute such hypothetical proceeds based on the liquidation rights and priorities defined in the contractual arrangement. Under the HLBV method, net income and losses of the subsidiary are attributed based on the change in each party’s capital account between the beginning and the end of the reporting period, after adjusting for capital contributions and distributions. The proportion of net income and losses attributed to non-controlling interests under the HLBV method is subject to change as the net assets in the subsidiary change.
Reclassification	Reclassification Certain amounts have been reclassified to conform to current year presentation.
Recent accounting pronouncements	Recent accounting pronouncements The FASB issued ASU No. 2023-07, Improvements to Reportable Segment Disclosures , in November 2023. The standard expands reportable segment disclosures by requiring disclosure of significant segment expenses that are regularly provided to the Chief Operating Decision Maker (“CODM”) and included within each reported measure of segment profit or loss, an amount and description of its composition for other segment items, and interim disclosures of a reportable segment’s profit or loss and assets. The new standard is effective for annual periods beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. The Company is currently evaluating the impact of adoption on our financial disclosures. The FASB issued ASU No. 2023-09, Improvements to Income Tax Disclosures , in December 2023. The standard requires disaggregated information about a reporting entity's effective tax rate reconciliation as well as information on income taxes paid. The standard is intended to benefit investors by providing more detailed income tax disclosures that would be useful in making capital allocation decisions and applies to all entities subject to income taxes. The new standard is effective for annual periods beginning after December 15, 2024. The Company is currently evaluating the impact of adoption on our financial disclosures.
Held-to-maturity debt security	Held-to-maturity debt security As of September 30, 2024, the Company’s debt security investment consists of redeemable preferred shares that are accounted for as a held-to-maturity investment. The Company’s investment is measured at amortized cost within investments in the condensed consolidated balance sheets. The Company reviews its held-to-maturity securities for expected credit losses under ASC Topic 326, Financial Instruments – Credit Losses , on an ongoing basis.

Summary of significant accoun_3

Summary of significant accounting policies (Tables)	9 Months Ended
Summary of significant accounting policies (Tables)	Sep. 30, 2024
Accounting Policies [Abstract]
Schedule of Carrying Value and Estimated Fair Value of Long-term Debt	The carrying value and estimated fair value of long-term debt were as follows: September 30, 2024 December 31, 2023 Carrying value Estimated fair value (1) Carrying value Estimated fair value (1) Long-term debt (1) $ 2,201,375 $ 2,141,443 $ 2,004,438 $ 1,829,286 (1) The estimated fair value of the Company’s fixed rate long-term debt is estimated primarily based on current bid prices for the long-term debt. Judgment is required to develop these estimates. As such, the fair value of long-term debt is classified within Level 2, as defined under GAAP.

Investments (Tables)

Investments (Tables)	9 Months Ended
Investments (Tables)	Sep. 30, 2024
Investments, Debt and Equity Securities [Abstract]
Schedule of Amortized Cost, Gross Unrealized Gains (Losses), and Fair Value of Cash Equivalents and Marketable Securities	The following tables summarize the amortized cost, net unrealized gains and losses, fair value, and the level in the fair value hierarchy of the Company’s available-for-sale investments in marketable securities. As of September 30, 2024, the marketable securities had maturity dates that range from less than 1 month to approximately 23 months. Realized gains and losses were insignificant for the three and nine months ended September 30, 2024 and 2023. Amortized Cost Unrealized Gains, Net Fair Value (1) Level 1 Level 2 September 30, 2024 Cash equivalents Money market funds $ 1,260 $ — $ 1,260 $ 1,260 $ — Total cash equivalents 1,260 — 1,260 1,260 — Short-term marketable securities Commercial paper 17,731 33 17,764 — 17,764 Corporate debt securities 83,339 330 83,669 — 83,669 U.S. treasury securities 1,976 — 1,976 — 1,976 U.S. government agency securities 5,207 13 5,220 — 5,220 Total short-term marketable securities 108,253 376 108,629 — 108,629 Long-term marketable securities Corporate debt securities 52,616 418 53,034 — 53,034 U.S. government agency securities 2,500 1 2,501 — 2,501 Total long-term marketable securities 55,116 419 55,535 — 55,535 Total marketable securities $ 164,629 $ 795 $ 165,424 $ 1,260 $ 164,164 Amortized Cost Unrealized Gains (Losses), Net Fair Value (1) Level 1 Level 2 December 31, 2023 Cash equivalents Money market funds $ 761 $ — $ 761 $ 761 $ — U.S. treasury securities 2,997 1 2,998 — 2,998 Total cash equivalents 3,758 1 3,759 761 2,998 Short-term marketable securities Commercial paper 37,063 24 37,087 — 37,087 Corporate debt securities 34,632 (38) 34,594 — 34,594 U.S. government agency securities 3,210 10 3,220 — 3,220 Total short-term marketable securities 74,905 (4) 74,901 — 74,901 Long-term marketable securities Corporate debt securities 47,388 328 47,716 — 47,716 U.S. government agency securities 3,151 19 3,170 — 3,170 Total long-term marketable securities 50,539 347 50,886 — 50,886 Total marketable securities $ 129,202 $ 344 $ 129,546 $ 761 $ 128,785 (1) Fair values were determined using market prices obtained from third-party pricing sources.
Schedule of Rollforward of Allowance for Expected Credit Losses on Held-to-maturity Investments	A roll forward of the Company’s allowance for expected credit losses on its held-to-maturity investment is as follows: Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Beginning allowance for expected credit losses $ 18,246 $ 15,052 $ 17,689 $ 14,957 Loss (gain) on adjustment of allowance for expected credit losses 292 (101) 849 (6) Write-offs, net of recoveries — — — — Ending allowance for expected credit losses $ 18,538 $ 14,951 $ 18,538 $ 14,951

Acquisition (Tables)

Acquisition (Tables)	9 Months Ended
Acquisition (Tables)	Sep. 30, 2024
Business Combination, Asset Acquisition, and Joint Venture Formation [Abstract]
Schedule of Purchase Consideration Allocation	The allocation of the purchase consideration was as follows: Amount Property and equipment $ 3,851 Right of use assets 5,424 Other long-term assets 95 Intangible assets 6,880 Goodwill 14,812 Deferred revenue (687) Other current liabilities (17) Lease liabilities (4,204) Total $ 26,154
Schedule of Identifiable Intangible Assets Acquired	The following table sets forth the components of identifiable intangible assets acquired in the Florida Acquisition and their estimated useful lives in years as of the date of the acquisition: Fair value Useful life Reacquired franchise rights (1) $ 6,650 6.8 Customer relationships (2) 230 6.0 Total intangible assets subject to amortization $ 6,880 (1) Reacquired franchise rights represent the fair value of the reacquired franchise agreements using the income approach, specifically, the multi-period excess earnings method. (2) Customer relationships represent the fair value of the existing contractual customer relationships using the income approach, specifically, the multi-period excess earnings method.

Goodwill and intangible assets

Goodwill and intangible assets (Tables)	9 Months Ended
Goodwill and intangible assets (Tables)	Sep. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill and Related Changes in Carrying Amount	Goodwill and related changes in its carrying amount were as follows: Amount Goodwill at December 31, 2023 $ 717,502 Acquisition 1,572 Foreign currency translation 53 Goodwill at September 30, 2024 $ 719,127 The following table summarizes the Company’s goodwill by reportable segment: September 30, 2024 December 31, 2023 Franchise $ 16,938 $ 16,938 Corporate-owned clubs 609,523 607,898 Equipment 92,666 92,666 Consolidated goodwill $ 719,127 $ 717,502
Schedule of Finite-Lived Intangible Assets,	A summary of intangible assets is as follows: September 30, 2024 December 31, 2023 Gross Accumulated Net carrying Gross Accumulated Net carrying Finite-lived intangible assets: Customer relationships $ 199,043 $ (180,952) $ 18,091 $ 199,043 $ (169,155) $ 29,888 Reacquired franchise rights 274,708 (105,163) 169,545 274,708 (78,689) 196,019 Total finite-lived intangible assets 473,751 (286,115) 187,636 473,751 (247,844) 225,907 Indefinite-lived intangible assets: Trade and brand names 146,600 — 146,600 146,600 — 146,600 Total intangible assets $ 620,351 $ (286,115) $ 334,236 $ 620,351 $ (247,844) $ 372,507
Schedule of Indefinite-Lived Intangible Assets	A summary of intangible assets is as follows: September 30, 2024 December 31, 2023 Gross Accumulated Net carrying Gross Accumulated Net carrying Finite-lived intangible assets: Customer relationships $ 199,043 $ (180,952) $ 18,091 $ 199,043 $ (169,155) $ 29,888 Reacquired franchise rights 274,708 (105,163) 169,545 274,708 (78,689) 196,019 Total finite-lived intangible assets 473,751 (286,115) 187,636 473,751 (247,844) 225,907 Indefinite-lived intangible assets: Trade and brand names 146,600 — 146,600 146,600 — 146,600 Total intangible assets $ 620,351 $ (286,115) $ 334,236 $ 620,351 $ (247,844) $ 372,507
Schedule of Amortization expenses	The anticipated amortization expense related to intangible assets to be recognized in future periods as of September 30, 2024 is as follows: Amount Remainder of 2024 $ 10,918 2025 36,713 2026 32,079 2027 27,956 2028 27,300 Thereafter 52,670 Total $ 187,636

Long-term debt (Tables)

Long-term debt (Tables)	9 Months Ended
Long-term debt (Tables)	Sep. 30, 2024
Debt Disclosure [Abstract]
Schedule of Long-term Debt	Long-term debt consists of the following: September 30, 2024 December 31, 2023 2018-1 Class A-2-II notes $ — $ 592,187 2019-1 Class A-2 notes 523,875 528,000 2022-1 Class A-2-I notes 414,375 417,563 2022-1 Class A-2-II notes 463,125 466,688 2024-1 Class A-2-I notes 425,000 — 2024-1 Class A-2-II notes 375,000 — Total debt, excluding deferred financing costs 2,201,375 2,004,438 Deferred financing costs, net of accumulated amortization (26,599) (20,814) Total debt, net 2,174,776 1,983,624 Current portion of long-term debt 22,500 20,750 Long-term debt, net of current portion $ 2,152,276 $ 1,962,874
Schedule of Future Annual Payments of Long-term Debt	Future principal payments of long-term debt as of September 30, 2024 are as follows: Amount Remainder of 2024 $ 5,625 2025 22,500 2026 427,313 2027 18,250 2028 18,250 Thereafter 1,709,437 Total $ 2,201,375

Leases (Tables)

Leases (Tables)	9 Months Ended
Leases (Tables)	Sep. 30, 2024
Leases [Abstract]
Schedule of Balance Sheet Classification of Lease Assets and Liabilities	The right-of-use assets and lease liabilities for operating and finance leases, including their classification in the condensed consolidated balance sheets, were as follows: Leases Balance Sheet Classification September 30, 2024 December 31, 2023 Assets Operating Right of use asset, net $ 400,246 $ 381,010 Finance Property and equipment, net 82 179 Total lease assets $ 400,328 $ 381,189 Liabilities Current: Operating Other current liabilities $ 35,230 $ 33,849 Finance Other current liabilities 71 125 Noncurrent: Operating Lease liabilities, net of current portion 408,588 381,589 Finance Other liabilities 15 63 Total lease liabilities $ 443,904 $ 415,626 Weighted-average remaining lease term - operating leases 7.9 years 8.0 years Weighted-average discount rate - operating leases 5.6% 5.4%
Schedule of Components of Lease Cost	The components of lease cost were as follows: Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Operating lease cost $ 18,139 $ 16,467 $ 54,142 $ 47,154 Variable lease cost 6,828 5,917 18,980 16,936 Total lease cost $ 24,967 $ 22,384 $ 73,122 $ 64,090 Supplemental disclosures of cash flow information related to leases were as follows: Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Cash paid for lease liabilities $ 14,319 $ 13,877 $ 44,829 $ 41,985 Operating lease ROU assets obtained in exchange for operating lease liabilities, excluding acquisitions $ 18,964 $ 38,683 $ 55,494 $ 59,410 Operating lease ROU assets obtained in exchange for operating lease liabilities through acquisitions $ — $ — $ — $ 4,204
Schedule of Maturities of Lease Liabilities	Maturities of lease liabilities as of September 30, 2024 were as follows: Amount Remainder of 2024 $ 6,164 2025 71,242 2026 77,446 2027 77,054 2028 74,136 Thereafter 252,900 Total lease payments $ 558,942 Less: imputed interest (115,038) Present value of lease liabilities $ 443,904
Schedule of Maturities of Lease Liabilities	Maturities of lease liabilities as of September 30, 2024 were as follows: Amount Remainder of 2024 $ 6,164 2025 71,242 2026 77,446 2027 77,054 2028 74,136 Thereafter 252,900 Total lease payments $ 558,942 Less: imputed interest (115,038) Present value of lease liabilities $ 443,904

Revenue from contract with cu_2

Revenue from contract with customers (Tables)	9 Months Ended
Revenue from contract with customers (Tables)	Sep. 30, 2024
Revenue from Contract with Customer [Abstract]
Schedule of Contract Liabilities	The following table reflects the change in contract liabilities between December 31, 2023 and September 30, 2024: Amount Balance at December 31, 2023 $ 91,638 Revenue recognized that was included in the contract liability at the beginning of the year (56,187) Increase, excluding amounts recognized as revenue during the period 65,644 Balance at September 30, 2024 $ 101,095
Schedule of Remaining Performance Obligations	The following table illustrates estimated revenues expected to be recognized in the future related to performance obligations that are unsatisfied, or partially unsatisfied, as of September 30, 2024. The Company has elected to exclude short-term contracts, sales and usage-based royalties and any other variable consideration recognized on an “as invoiced” basis. Contract liabilities to be recognized in: Amount Remainder of 2024 $ 42,713 2025 26,168 2026 4,313 2027 3,612 2028 3,302 Thereafter 20,987 Total $ 101,095

Related party transactions (Tab

Related party transactions (Tables)	9 Months Ended
Related party transactions (Tables)	Sep. 30, 2024
Related Party Transactions [Abstract]
Schedule of Related Party Transactions	Activity with franchisees considered to be related parties is summarized below: Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Franchise revenue - former interim CEO $ 1,051 $ 958 $ 3,383 $ 2,882 Franchise revenue - other 947 656 2,616 1,206 Equipment revenue - former interim CEO 639 1,294 1,738 2,305 Equipment revenue - other 3,014 1,641 7,358 1,641 Total revenue from related parties $ 5,651 $ 4,549 $ 15,095 $ 8,034

Earnings per share (Tables)

Earnings per share (Tables)	9 Months Ended
Earnings per share (Tables)	Sep. 30, 2024
Earnings Per Share [Abstract]
Schedule of Reconciliation of Numerators and Denominators Used to Compute Basic and Diluted Earnings per Share	The following table sets forth reconciliations of the numerators and denominators used to compute basic and diluted earnings per share of Class A common stock: Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Numerator Net income $ 42,395 $ 41,324 $ 126,680 $ 110,272 Less: net income attributable to non-controlling interests 386 2,190 1,722 7,299 Net income attributable to Planet Fitness, Inc. $ 42,009 $ 39,134 $ 124,958 $ 102,973 Denominator Weighted-average shares of Class A common stock outstanding - basic 84,569,504 84,609,522 86,090,290 84,557,902 Effect of dilutive securities: Stock options 38,017 212,953 117,080 239,709 Restricted stock units 72,665 48,282 48,994 64,347 Performance stock units 47,639 15,562 32,720 8,354 Weighted-average shares of Class A common stock outstanding - diluted 84,727,825 84,886,319 86,289,084 84,870,312 Earnings per share of Class A common stock - basic $ 0.50 $ 0.46 $ 1.45 $ 1.22 Earnings per share of Class A common stock - diluted $ 0.50 $ 0.46 $ 1.45 $ 1.21
Schedule of Common Stock Equivalents Excluded from the Computation of Diluted Net Income Per Share	The number of weighted-average common stock equivalents excluded from the computation of diluted net income per share because either the effect would have been anti-dilutive were as follows: Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Class B common stock 532,058 3,533,885 811,748 4,236,271 Stock options — 307,606 3,503 250,595 Restricted stock units — 968 2,229 5,684 Performance stock units 29 36,717 2,055 1,981 Total 532,087 3,879,176 819,535 4,494,531

Income taxes (Tables)

Income taxes (Tables)	9 Months Ended
Income taxes (Tables)	Sep. 30, 2024
Income Tax Disclosure [Abstract]
Schedule of Future Payments Under Tax Benefit Arrangements	Projected future payments under the tax benefit arrangements were as follows: Amount Remainder of 2024 $ 13,392 2025 50,231 2026 52,314 2027 48,588 2028 42,149 Thereafter 270,737 Total $ 477,411

Segments (Tables)

Segments (Tables)	9 Months Ended
Segments (Tables)	Sep. 30, 2024
Segment Reporting [Abstract]
Schedule of Financial Information for the Company's Reportable Segments	The tables below summarize the financial information for the Company’s reportable segments. Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Revenue Franchise segment revenue - U.S. $ 98,902 $ 95,209 $ 303,971 $ 281,836 Franchise segment revenue - International 3,513 2,956 10,254 7,855 Franchise segment total 102,415 98,165 314,225 289,691 Corporate-owned clubs segment - U.S. 126,716 112,080 372,061 329,505 Corporate-owned clubs segment - International 1,416 1,165 3,915 3,380 Corporate-owned clubs segment total 128,132 113,245 375,976 332,885 Equipment segment - U.S. 58,081 62,605 140,824 158,335 Equipment segment - International 3,618 3,536 10,179 5,329 Equipment segment total 61,699 66,141 151,003 163,664 Total revenue $ 292,246 $ 277,551 $ 841,204 $ 786,240 Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Segment EBITDA Franchise $ 72,758 $ 67,583 $ 226,478 $ 198,418 Corporate-owned clubs 50,107 44,264 141,507 126,499 Equipment 18,487 16,434 41,822 39,134 Corporate and other (1) (20,408) (18,547) (57,191) (52,238) Total Segment EBITDA $ 120,944 $ 109,734 $ 352,616 $ 311,813 (1) Corporate and other primarily includes corporate overhead costs, such as payroll and related benefit costs and professional services which are not directly attributable to any individual segment.
Schedule of Segment EBITDA to Income Before Taxes	The following table reconciles total Segment EBITDA to income before taxes: Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Total Segment EBITDA $ 120,944 $ 109,734 $ 352,616 $ 311,813 Less: Depreciation and amortization 41,033 37,477 120,230 110,254 Other (expense) income, net (558) 148 1,132 631 Losses from equity-method investments, net of tax (782) (242) (3,198) (580) Income from operations 81,251 72,351 234,452 201,508 Interest income 5,610 4,245 16,687 12,339 Interest expense (26,603) (21,704) (72,569) (64,771) Other (expense) income, net (558) 148 1,132 631 Income before income taxes $ 59,700 $ 55,040 $ 179,702 $ 149,707
Schedule of Company's Assets by Reportable Segment	The following table summarizes the Company’s assets by reportable segment: September 30, 2024 December 31, 2023 Franchise $ 164,678 $ 169,836 Corporate-owned clubs 1,678,418 1,637,146 Equipment 196,198 176,249 Unallocated 1,008,887 986,462 Total consolidated assets $ 3,048,181 $ 2,969,693
Schedule of Company's Goodwill by Reportable Segment	Goodwill and related changes in its carrying amount were as follows: Amount Goodwill at December 31, 2023 $ 717,502 Acquisition 1,572 Foreign currency translation 53 Goodwill at September 30, 2024 $ 719,127 The following table summarizes the Company’s goodwill by reportable segment: September 30, 2024 December 31, 2023 Franchise $ 16,938 $ 16,938 Corporate-owned clubs 609,523 607,898 Equipment 92,666 92,666 Consolidated goodwill $ 719,127 $ 717,502

Corporate-owned and franchise_2

Corporate-owned and franchisee-owned stores (Tables)	9 Months Ended
Corporate-owned and franchisee-owned stores (Tables)	Sep. 30, 2024
Franchisors [Abstract]
Schedule of Changes in Corporate-Owned and Franchisee-Owned Clubs	The following table shows changes in corporate-owned and franchisee-owned clubs: Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Franchisee-owned clubs: Clubs operated at beginning of period 2,358 2,230 2,319 2,176 New clubs opened 12 24 52 82 Clubs debranded, sold, closed or consolidated (1) (1) — (2) (4) Clubs operated at end of period 2,369 2,254 2,369 2,254 Corporate-owned clubs: Clubs operated at beginning of period 259 242 256 234 New clubs opened 9 2 12 6 Clubs acquired from franchisees — — — 4 Clubs operated at end of period 268 244 268 244 Total clubs: Clubs operated at beginning of period 2,617 2,472 2,575 2,410 New clubs opened 21 26 64 88 Clubs debranded, sold, closed or consolidated (1) (1) — (2) — Clubs operated at end of period 2,637 2,498 2,637 2,498 (1) The term “debranded” refers to a franchisee-owned club whose right to use the Planet Fitness brand and marks has been terminated in accordance with the franchise agreement. We retain the right to prevent debranded clubs from continuing to operate as fitness clubs. The term “consolidated” refers to the combination of a franchisee’s club with another club located in close proximity with our prior approval. This often coincides with an enlargement, re-equipment and/or refurbishment of the remaining club.

Business organization (Details)

Business organization (Details) member in Millions	9 Months Ended
Business organization (Details) member in Millions	Sep. 30, 2024 segment member state store	Jun. 30, 2024 store	Dec. 31, 2023 store	Sep. 30, 2023 store	Jun. 30, 2023 store	Dec. 31, 2022 store	Aug. 05, 2015
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Number of members \| member	19.6
Number of owned and franchised locations \| store	2,637	2,617	2,575	2,498	2,472	2,410
Number of states in which entity operates \| state	50
Number of reportable segments \| segment	3
Pla-Fit Holdings, LLC
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Percentage of voting power (in percentage)	100%						100%
Percentage of ownership (in percentage)	99.40%
Economic interest	0.60%
Planet Intermediate, LLC \| Pla-Fit Holdings, LLC
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Percentage of ownership (in percentage)							100%
Planet Fitness Holdings, LLC \| Planet Intermediate, LLC
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Percentage of ownership (in percentage)							100%

Summary of significant accoun_4

Summary of significant accounting policies (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Carrying value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	$ 2,201,375	$ 2,004,438
Estimated fair value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	$ 2,141,443	$ 1,829,286

Investments - Additional Inform

Investments - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
Investments - Additional Information (Details) - USD ($)	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2022
Schedule of Equity Method Investments [Line Items]
Allowance for credit losses	$ 0		$ 0		$ 0
Credit loss (gain) on held-to-maturity investment	292,000	$ (101,000)	849,000	$ (6,000)
Amortized cost of held-to-maturity debt security investments	31,961,000		31,961,000		30,343,000
Allowance for expected credit loss	18,538,000	14,951,000	18,538,000	14,951,000	17,689,000	$ 18,246,000	$ 15,052,000	$ 14,957,000
Dividends accrued on held-to-maturity investment	553,000	511,000	1,618,000	1,490,000
Losses from equity-method investments, net of tax	782,000	242,000	3,198,000	580,000
Basis difference amortization	12,768,000	12,965,000	38,304,000	38,517,000
Bravo Fit Holdings Pty Ltd
Schedule of Equity Method Investments [Line Items]
Total investment	$ 12,080,000		$ 12,080,000		$ 13,220,000
Ownership percentage	21.80%		21.80%		21.80%
Underlying equity in net assets	$ 5,287,000		$ 5,287,000		$ 6,812,000
Useful life			9 years		9 years
Losses from equity-method investments, net of tax	674,000	94,000	$ 1,140,000	432,000
Basis difference amortization	66,000	65,000	198,000	195,000
Planet Fitmex, LLC
Schedule of Equity Method Investments [Line Items]
Total investment	$ 49,575,000		$ 49,575,000		$ 51,633,000
Ownership percentage	33.20%		33.20%		33.20%
Underlying equity in net assets	$ 20,060,000		$ 20,060,000		$ 17,458,000
Useful life			9 years
Losses from equity-method investments, net of tax	108,000	148,000	$ 2,058,000	148,000
Basis difference amortization	$ 174,000	$ 56,000	$ 511,000	$ 56,000
Minimum
Schedule of Equity Method Investments [Line Items]
Maturity dates	1 month		1 month
Maximum
Schedule of Equity Method Investments [Line Items]
Maturity dates	23 months		23 months

Investments - Schedule of Amort

Investments - Schedule of Amortized Cost, Gross Unrealized Gains (Losses), and Fair Value of Cash Equivalents and Marketable Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Schedule of Equity Method Investments [Line Items]
Amortized Cost	$ 164,629	$ 129,202
Unrealized Gains (Losses), Net	795	344
Fair Value	165,424	129,546
Level 1
Schedule of Equity Method Investments [Line Items]
Fair Value	1,260	761
Level 2
Schedule of Equity Method Investments [Line Items]
Fair Value	164,164	128,785
Cash equivalents
Schedule of Equity Method Investments [Line Items]
Amortized Cost	1,260	3,758
Unrealized Gains (Losses), Net	0	1
Fair Value	1,260	3,759
Cash equivalents \| Level 1
Schedule of Equity Method Investments [Line Items]
Fair Value	1,260	761
Cash equivalents \| Level 2
Schedule of Equity Method Investments [Line Items]
Fair Value	0	2,998
Cash equivalents \| Money market funds
Schedule of Equity Method Investments [Line Items]
Amortized Cost	1,260	761
Unrealized Gains (Losses), Net	0	0
Fair Value	1,260	761
Cash equivalents \| Money market funds \| Level 1
Schedule of Equity Method Investments [Line Items]
Fair Value	1,260	761
Cash equivalents \| Money market funds \| Level 2
Schedule of Equity Method Investments [Line Items]
Fair Value	0	0
Cash equivalents \| U.S. treasury securities
Schedule of Equity Method Investments [Line Items]
Amortized Cost		2,997
Unrealized Gains (Losses), Net		1
Fair Value		2,998
Cash equivalents \| U.S. treasury securities \| Level 1
Schedule of Equity Method Investments [Line Items]
Fair Value		0
Cash equivalents \| U.S. treasury securities \| Level 2
Schedule of Equity Method Investments [Line Items]
Fair Value		2,998
Short-term marketable securities
Schedule of Equity Method Investments [Line Items]
Amortized Cost	108,253	74,905
Unrealized Gains (Losses), Net	376	(4)
Fair Value	108,629	74,901
Short-term marketable securities \| Level 1
Schedule of Equity Method Investments [Line Items]
Fair Value	0	0
Short-term marketable securities \| Level 2
Schedule of Equity Method Investments [Line Items]
Fair Value	108,629	74,901
Short-term marketable securities \| U.S. treasury securities
Schedule of Equity Method Investments [Line Items]
Amortized Cost	1,976
Unrealized Gains (Losses), Net	0
Fair Value	1,976
Short-term marketable securities \| U.S. treasury securities \| Level 1
Schedule of Equity Method Investments [Line Items]
Fair Value	0
Short-term marketable securities \| U.S. treasury securities \| Level 2
Schedule of Equity Method Investments [Line Items]
Fair Value	1,976
Short-term marketable securities \| Commercial paper
Schedule of Equity Method Investments [Line Items]
Amortized Cost	17,731	37,063
Unrealized Gains (Losses), Net	33	24
Fair Value	17,764	37,087
Short-term marketable securities \| Commercial paper \| Level 1
Schedule of Equity Method Investments [Line Items]
Fair Value	0	0
Short-term marketable securities \| Commercial paper \| Level 2
Schedule of Equity Method Investments [Line Items]
Fair Value	17,764	37,087
Short-term marketable securities \| Corporate debt securities
Schedule of Equity Method Investments [Line Items]
Amortized Cost	83,339	34,632
Unrealized Gains (Losses), Net	330	(38)
Fair Value	83,669	34,594
Short-term marketable securities \| Corporate debt securities \| Level 1
Schedule of Equity Method Investments [Line Items]
Fair Value	0	0
Short-term marketable securities \| Corporate debt securities \| Level 2
Schedule of Equity Method Investments [Line Items]
Fair Value	83,669	34,594
Short-term marketable securities \| U.S. government agency securities
Schedule of Equity Method Investments [Line Items]
Amortized Cost	5,207	3,210
Unrealized Gains (Losses), Net	13	10
Fair Value	5,220	3,220
Short-term marketable securities \| U.S. government agency securities \| Level 1
Schedule of Equity Method Investments [Line Items]
Fair Value	0	0
Short-term marketable securities \| U.S. government agency securities \| Level 2
Schedule of Equity Method Investments [Line Items]
Fair Value	5,220	3,220
Long-term marketable securities
Schedule of Equity Method Investments [Line Items]
Amortized Cost	55,116	50,539
Unrealized Gains (Losses), Net	419	347
Fair Value	55,535	50,886
Long-term marketable securities \| Level 1
Schedule of Equity Method Investments [Line Items]
Fair Value	0	0
Long-term marketable securities \| Level 2
Schedule of Equity Method Investments [Line Items]
Fair Value	55,535	50,886
Long-term marketable securities \| Corporate debt securities
Schedule of Equity Method Investments [Line Items]
Amortized Cost	52,616	47,388
Unrealized Gains (Losses), Net	418	328
Fair Value	53,034	47,716
Long-term marketable securities \| Corporate debt securities \| Level 1
Schedule of Equity Method Investments [Line Items]
Fair Value	0	0
Long-term marketable securities \| Corporate debt securities \| Level 2
Schedule of Equity Method Investments [Line Items]
Fair Value	53,034	47,716
Long-term marketable securities \| U.S. government agency securities
Schedule of Equity Method Investments [Line Items]
Amortized Cost	2,500	3,151
Unrealized Gains (Losses), Net	1	19
Fair Value	2,501	3,170
Long-term marketable securities \| U.S. government agency securities \| Level 1
Schedule of Equity Method Investments [Line Items]
Fair Value	0	0
Long-term marketable securities \| U.S. government agency securities \| Level 2
Schedule of Equity Method Investments [Line Items]
Fair Value	$ 2,501	$ 3,170

Investments - Schedule of Rollf

Investments - Schedule of Rollforward of Allowance for Expected Credit Losses on Held-to-maturity Investments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Roll Forward]
Beginning allowance for expected credit losses	$ 18,246	$ 15,052	$ 17,689	$ 14,957
Loss (gain) on adjustment of allowance for expected credit losses	292	(101)	849	(6)
Write-offs, net of recoveries	0	0	0	0
Ending allowance for expected credit losses	$ 18,538	$ 14,951	$ 18,538	$ 14,951

Acquisition - Additional Inform

Acquisition - Additional Information (Details) $ in Thousands	Apr. 16, 2023 USD ($) store	Sep. 30, 2024 store	Jun. 30, 2024 store	Dec. 31, 2023 store	Sep. 30, 2023 store	Jun. 30, 2023 store	Dec. 31, 2022 store
Business Acquisition [Line Items]
Number of owned and franchised locations \| store		2,637	2,617	2,575	2,498	2,472	2,410
Franchised Units
Business Acquisition [Line Items]
Number of owned and franchised locations \| store		2,369	2,358	2,319	2,254	2,230	2,176
Florida Acquisition
Business Acquisition [Line Items]
Aggregate consideration \| $	$ 26,264
Loss on unfavorable reacquired franchise rights \| $	110
Net purchase price \| $	$ 26,154
Florida Acquisition \| Franchised Units
Business Acquisition [Line Items]
Number of owned and franchised locations \| store	4

Acquisition - Schedule of Purch

Acquisition - Schedule of Purchase Consideration (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023	Apr. 16, 2023
Business Acquisition [Line Items]
Goodwill	$ 719,127	$ 717,502
Florida Acquisition
Business Acquisition [Line Items]
Property and equipment			$ 3,851
Right of use assets			5,424
Other long-term assets			95
Intangible assets			6,880
Goodwill			14,812
Deferred revenue			(687)
Other current liabilities			(17)
Lease liabilities			(4,204)
Total			$ 26,154

Acquisition - Schedule of Ident

Acquisition - Schedule of Identifiable Intangible Assets Acquired (Details) - Florida Acquisition $ in Thousands	Apr. 16, 2023 USD ($)
Business Acquisition [Line Items]
Fair value	$ 6,880
Reacquired franchise rights
Business Acquisition [Line Items]
Fair value	$ 6,650
Useful life	6 years 9 months 18 days
Customer relationships
Business Acquisition [Line Items]
Fair value	$ 230
Useful life	6 years

Goodwill and intangible asset_2

Goodwill and intangible assets - Schedule of Goodwill and Related Changes in Carrying Amount (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Mar. 31, 2024	Sep. 30, 2024
Goodwill [Roll Forward]
Beginning balance	$ 717,502	$ 717,502
Acquisition	$ 1,572	1,572
Foreign currency translation		53
Ending balance		$ 719,127

Goodwill and intangible asset_3

Goodwill and intangible assets - Additional Information (Details) - USD ($)	3 Months Ended			9 Months Ended		12 Months Ended
	Sep. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Acquisition		$ 1,572,000		$ 1,572,000
Impairment charges				0		$ 0
Amortization of intangible assets	$ 12,768,000		$ 12,965,000	$ 38,304,000	$ 38,517,000

Goodwill and intangible asset_4

Goodwill and intangible assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Finite-lived intangible assets:
Gross carrying amount	$ 473,751	$ 473,751
Accumulated amortization	(286,115)	(247,844)
Total	187,636	225,907
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Total intangible assets	620,351	620,351
Accumulated amortization	(286,115)	(247,844)
Net carrying Amount	334,236	372,507
Trade and brand names
Indefinite-lived intangible assets:
Indefinite-lived intangible assets	146,600	146,600
Customer relationships
Finite-lived intangible assets:
Gross carrying amount	199,043	199,043
Accumulated amortization	(180,952)	(169,155)
Total	18,091	29,888
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Accumulated amortization	(180,952)	(169,155)
Reacquired franchise rights
Finite-lived intangible assets:
Gross carrying amount	274,708	274,708
Accumulated amortization	(105,163)	(78,689)
Total	169,545	196,019
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Accumulated amortization	$ (105,163)	$ (78,689)

Goodwill and intangible asset_5

Goodwill and intangible assets - Schedule of Amortization expenses (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Remainder of 2024	$ 10,918
2025	36,713
2026	32,079
2027	27,956
2028	27,300
Thereafter	52,670
Total	$ 187,636	$ 225,907

Long-term debt - Schedule of Lo

Long-term debt - Schedule of Long-term Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Total debt, excluding deferred financing costs	$ 2,201,375	$ 2,004,438
Deferred financing costs, net of accumulated amortization	(26,599)	(20,814)
Total debt, net	2,174,776	1,983,624
Current portion of long-term debt	22,500	20,750
Long-term debt, net of current portion	2,152,276	1,962,874
2018-1 Class A-2-II notes \| Senior Notes
Debt Instrument [Line Items]
Total debt, excluding deferred financing costs	0	592,187
2019-1 Class A-2 notes \| Senior Notes
Debt Instrument [Line Items]
Total debt, excluding deferred financing costs	523,875	528,000
2022-1 Class A-2-I notes \| Senior Notes
Debt Instrument [Line Items]
Total debt, excluding deferred financing costs	414,375	417,563
2022-1 Class A-2-II notes \| Senior Notes
Debt Instrument [Line Items]
Total debt, excluding deferred financing costs	463,125	466,688
2024-1 Class A-2-I notes \| Senior Notes
Debt Instrument [Line Items]
Total debt, excluding deferred financing costs	425,000	0
2024-1 Class A-2-II notes \| Senior Notes
Debt Instrument [Line Items]
Total debt, excluding deferred financing costs	$ 375,000	$ 0

Long-term debt - Schedule of Fu

Long-term debt - Schedule of Future Annual Payments of Long-term Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Debt Disclosure [Abstract]
Remainder of 2024	$ 5,625
2025	22,500
2026	427,313
2027	18,250
2028	18,250
Thereafter	1,709,437
Total	$ 2,201,375	$ 2,004,438

Long-term debt - Additional Inf

Long-term debt - Additional Information (Details)		9 Months Ended
Long-term debt - Additional Information (Details)	Feb. 10, 2022 USD ($) extension	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Jun. 12, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 03, 2019 USD ($)	Aug. 01, 2018 USD ($)
Debt Instrument [Line Items]
Debt issuance costs	$ 16,193,000	$ 12,055,000				$ 10,577,000
Loss on extinguishment of debt		2,285,000	$ 0
Restricted cash		67,766,000			$ 46,279,000
2018-1 Class A-2-I \| Senior Notes
Debt Instrument [Line Items]
Interest rate							4.262%
Principal amount							$ 575,000,000
2018-1 Class A-2-II notes \| Senior Notes
Debt Instrument [Line Items]
Interest rate				5.765%			4.666%
Principal amount							$ 625,000,000
Variable Funding Note Facility \| Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity							$ 75,000,000
2019-1 Class A-2 notes \| Senior Notes
Debt Instrument [Line Items]
Interest rate						3.858%
Principal amount						$ 550,000,000
3.251% Fixed Rate Class A-2-I Senior Secured Notes \| Senior Notes
Debt Instrument [Line Items]
Interest rate	3.251%
Principal amount	$ 425,000
4.008% Fixed Rate Class A-2-II Senior Secured Notes \| Senior Notes
Debt Instrument [Line Items]
Interest rate	4.008%
Principal amount	$ 475,000
2022 Variable Funding Notes \| Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 75,000
Commitment fee percentage	0.50%
Number of additional extensions \| extension	2
Term of extension (in years)	1 year
Interest rate during period	5%
2024-1 Class A-2-I notes \| Senior Notes
Debt Instrument [Line Items]
Interest rate				6.237%
Principal amount				$ 425,000
2024-1 Class A-2-II notes \| Senior Notes
Debt Instrument [Line Items]
Principal amount				$ 375,000
Securitized Senior Notes \| Securitized Senior Notes
Debt Instrument [Line Items]
Cap on non-securitized indebtedness		$ 50,000,000
Leverage ratio cap		7

Leases - Balance Sheet Classifi

Leases - Balance Sheet Classification of Lease Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Assets
Operating	$ 400,246	$ 381,010
Finance	82	179
Total lease assets	400,328	381,189
Liabilities
Current operating lease liabilities	35,230	33,849
Current finance lease liabilities	71	125
Noncurrent operating lease liabilities	408,588	381,589
Noncurrent finance lease liabilities	15	63
Total lease liabilities	$ 443,904	$ 415,626
Weighted-average remaining lease term - operating leases	7 years 10 months 24 days	8 years
Weighted-average discount rate - operating leases	5.60%	5.40%
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Property and equipment, net of accumulated depreciation of $347,586 and $322,958, as of September 30, 2024 and December 31, 2023, respectively	Property and equipment, net of accumulated depreciation of $347,586 and $322,958, as of September 30, 2024 and December 31, 2023, respectively
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Other current liabilities	Other current liabilities
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Other current liabilities	Other current liabilities
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other liabilities	Other liabilities

Leases - Components of Lease Co

Leases - Components of Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Leases [Abstract]
Operating lease cost	$ 18,139	$ 16,467	$ 54,142	$ 47,154
Variable lease cost	6,828	5,917	18,980	16,936
Total lease cost	$ 24,967	$ 22,384	$ 73,122	$ 64,090

Leases - Supplemental Disclosur

Leases - Supplemental Disclosures of Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Leases [Abstract]
Cash paid for lease liabilities	$ 14,319	$ 13,877	$ 44,829	$ 41,985
Operating lease ROU assets obtained in exchange for operating lease liabilities, excluding acquisitions	18,964	38,683	55,494	59,410
Operating lease ROU assets obtained in exchange for operating lease liabilities through acquisitions	$ 0	$ 0	$ 0	$ 4,204

Leases - Maturities of Lease Li

Leases - Maturities of Lease Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Leases [Abstract]
Remainder of 2024	$ 6,164
2025	71,242
2026	77,446
2027	77,054
2028	74,136
Thereafter	252,900
Total lease payments	558,942
Less: imputed interest	(115,038)
Present value of lease liabilities	$ 443,904	$ 415,626

Leases - Additional Information

Leases - Additional Information (Details) $ in Thousands	Sep. 30, 2024 USD ($)
Leases [Abstract]
Lease payments for leases signed but not yet commenced	$ 36,861

Revenue from contract with cu_3

Revenue from contract with customers - Schedule of Contract Liabilities (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2024 USD ($)
Amount
Beginning Balance	$ 91,638
Revenue recognized that was included in the contract liability at the beginning of the year	(56,187)
Increase, excluding amounts recognized as revenue during the period	65,644
Ending Balance	$ 101,095

Revenue from contract with cu_4

Revenue from contract with customers - Schedule of Remaining Performance Obligations (Details) $ in Thousands	Sep. 30, 2024 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 101,095
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 42,713
Remaining performance obligation, expected timing of satisfaction	3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 26,168
Remaining performance obligation, expected timing of satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 4,313
Remaining performance obligation, expected timing of satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 3,612
Remaining performance obligation, expected timing of satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 3,302
Remaining performance obligation, expected timing of satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2029-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 20,987
Remaining performance obligation, expected timing of satisfaction

Revenue from contract with cu_5

Revenue from contract with customers - Additional Information (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2024 USD ($)
Revenue from Contract with Customer [Abstract]
Equipment deposits	$ 10,345
Deferred revenue expected recognition period (in months)	12 months

Related party transactions - Sc

Related party transactions - Schedule of Related Party Transactions (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Related Party Transaction [Line Items]
Total revenue from related parties	$ 292,246	$ 277,551	$ 841,204	$ 786,240
Related party
Related Party Transaction [Line Items]
Total revenue from related parties	5,651	4,549	15,095	8,034
Franchise revenue \| Related party
Related Party Transaction [Line Items]
Total revenue from related parties	947	656	2,616	1,206
Equipment revenue \| Related party
Related Party Transaction [Line Items]
Total revenue from related parties	3,014	1,641	7,358	1,641
CEO \| Franchise revenue \| Related party
Related Party Transaction [Line Items]
Total revenue from related parties	1,051	958	3,383	2,882
CEO \| Equipment revenue \| Related party
Related Party Transaction [Line Items]
Total revenue from related parties	$ 639	$ 1,294	$ 1,738	$ 2,305

Related party transactions - Ad

Related party transactions - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Related Party Transaction [Line Items]
Accounts receivable	$ 48,958		$ 48,958		$ 41,890
Deferred revenue	101,095		101,095		91,638
Accounts payable	31,844		31,844		23,788
Total revenue	292,246	$ 277,551	841,204	$ 786,240
Selling, general and administrative	32,647	33,290	93,453	93,705
Equipment
Related Party Transaction [Line Items]
Total revenue	61,699	66,141	151,003	163,664
Related party
Related Party Transaction [Line Items]
Accounts receivable	1,099		1,099		2,916
Total revenue	5,651	4,549	15,095	8,034
Related party \| Administrative Service
Related Party Transaction [Line Items]
Total revenue	1,657	893	4,455	2,679
Related party \| Deferred ADA and franchise agreement revenue
Related Party Transaction [Line Items]
Deferred revenue	627		627		719
Related party \| Deferred ADA and franchise agreement revenue \| Director and Interim CEO
Related Party Transaction [Line Items]
Deferred revenue	129		129		142
Related party \| Tax benefit arrangements
Related Party Transaction [Line Items]
Accounts payable	87,111		87,111		$ 98,494
Related party \| Amenity tracking compliance software \| Director and Interim CEO
Related Party Transaction [Line Items]
Purchases from related party	$ 102	101	$ 273	270
Related party \| Amenity tracking compliance software \| Director and Interim CEO \| Amenity Tracking Compliance Software Company
Related Party Transaction [Line Items]
Ownership percentage	10.50%		10.50%
Affiliated entity \| Corporate travel
Related Party Transaction [Line Items]
Selling, general and administrative		$ 63		$ 427

Stockholders' equity (Details)

Stockholders' equity (Details) - USD ($)				3 Months Ended		9 Months Ended
Stockholders' equity (Details) - USD ($)	Sep. 16, 2024	Jun. 14, 2024	Jun. 12, 2024	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Jun. 30, 2024	Jun. 13, 2024	Dec. 31, 2023	Jun. 30, 2023	Dec. 31, 2022	Nov. 04, 2022
Class of Stock [Line Items]
Repurchase and retirement of common stock				$ 692,000		$ 302,806,000	$ 126,078,000
Preferred stock, shares authorized (in shares)				50,000,000		50,000,000				50,000,000
Preferred stock, shares issued (in shares)				0		0				0
Preferred stock, shares outstanding (in shares)				0		0				0
2022 share repurchase program
Class of Stock [Line Items]
Stock repurchase program, authorized amount													$ 500,000,000
Share repurchase excise tax				$ 2,618,000		$ 2,618,000
ASR Agreement
Class of Stock [Line Items]
Stock repurchase program, authorized amount			$ 280,000,000
Accelerated cash paid		$ 280,000,000
Increase to accumulated deficit			$ 56,000,000
2024 Share Repurchase Program
Class of Stock [Line Items]
Stock repurchase program, authorized amount									$ 500,000,000
Remaining authorized amount				$ 500,000,000		$ 500,000,000
Continuing LLC Owners \| Affiliated entity \| Secondary Offering and Exchange
Class of Stock [Line Items]
Number of units held by owners (in shares)				488,207		488,207
Pla-Fit Holdings, LLC
Class of Stock [Line Items]
Stock received during period (in shares)				162,324		908,960
Economic interest				0.60%		0.60%
Pla-Fit Holdings, LLC \| Investor \| Secondary Offering and Exchange
Class of Stock [Line Items]
Percentage of economic interest						99.40%
Pla-Fit Holdings, LLC \| Affiliated entity \| Secondary Offering and Exchange
Class of Stock [Line Items]
Percentage of economic interest						0.60%
Holdings Units
Class of Stock [Line Items]
Shares exchanged for class A common stock (in shares)						1
Class B common stock
Class of Stock [Line Items]
Shares exchanged for class A common stock (in shares)						1
Number of shares exchanged (in shares)				162,324		908,960
Common stock, shares outstanding (in shares)				488,000		488,000				1,397,000
Class B common stock \| Common stock
Class of Stock [Line Items]
Exchanges of class A common stock, shares (in shares)				(162,000)	(1,418,000)	(909,000)	(3,413,000)
Common stock, shares outstanding (in shares)				488,000	2,733,000	488,000	2,733,000	650,000		1,397,000	4,151,000	6,146,000
Class B common stock \| Continuing LLC Owners \| Affiliated entity \| Secondary Offering and Exchange
Class of Stock [Line Items]
Number of units held by owners (in shares)				488,207		488,207
Class B common stock \| Pla-Fit Holdings, LLC \| Continuing LLC Owners \| Affiliated entity \| Secondary Offering and Exchange
Class of Stock [Line Items]
Economic interest				0.60%		0.60%
Class A common stock
Class of Stock [Line Items]
Number of shares exchanged (in shares)				162,324	1,417,603	908,960	3,412,312
Exchanges of class A common stock, shares (in shares)				162,324		908,960
Common stock, shares outstanding (in shares)				84,104,000		84,104,000				86,760,000
Class A common stock \| 2022 share repurchase program
Class of Stock [Line Items]
Repurchase and retirement of common stock (in shares)						313,834
Repurchase and retirement of common stock						$ 20,005,000
Class A common stock \| ASR Agreement
Class of Stock [Line Items]
Repurchase and retirement of common stock (in shares)	668,432	3,090,507,000
Repurchase and retirement of common stock		$ 224,000,000
ASR, percentage of total repurchased amount		80%
Weighted average cost per share (in dollars per share)			$ 76.88
Class A common stock \| Common stock
Class of Stock [Line Items]
Exchanges of class A common stock, shares (in shares)				162,000	1,418,000	909,000	3,413,000
Common stock, shares outstanding (in shares)				84,104,000	85,410,000	84,104,000	85,410,000	84,496,000		86,760,000	83,980,000	83,430,000
Repurchase and retirement of common stock (in shares)				669,000		4,073,000	1,699,000
Class A common stock \| Common Stockholders \| Investor \| Common stock
Class of Stock [Line Items]
Common stock, shares outstanding (in shares)				84,103,670		84,103,670
Class A common stock \| Continuing LLC Owners \| Investor
Class of Stock [Line Items]
Common stock, shares outstanding (in shares)				84,103,670		84,103,670
Class A common stock \| Planet Fitness, Inc. \| Common Stockholders \| Investor \| Common stock
Class of Stock [Line Items]
Economic interest				99.40%		99.40%

Earnings per share - Additional

Earnings per share - Additional Information (Details)	9 Months Ended
Earnings per share - Additional Information (Details)	Sep. 30, 2024 shares
Holdings Units
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Shares exchanged for class A common stock (in shares)	1
Class B common stock
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Shares exchanged for class A common stock (in shares)	1

Earnings per share - Reconcilia

Earnings per share - Reconciliation of Numerators and Denominators Used to Compute Basic and Diluted Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Numerator
Net income	$ 42,395	$ 41,324	$ 126,680	$ 110,272
Less: net income attributable to non-controlling interests	386	2,190	1,722	7,299
Net income attributable to Planet Fitness, Inc.	$ 42,009	$ 39,134	$ 124,958	$ 102,973
Stock options
Effect of dilutive securities:
Weighted-average shares outstanding adjustment (in shares)	38,017	212,953	117,080	239,709
Restricted stock units
Effect of dilutive securities:
Weighted-average shares outstanding adjustment (in shares)	72,665	48,282	48,994	64,347
Performance stock units
Effect of dilutive securities:
Weighted-average shares outstanding adjustment (in shares)	47,639	15,562	32,720	8,354
Class A common stock
Denominator
Weighted-average shares of Class A common stock outstanding - basic (in shares)	84,569,504	84,609,522	86,090,290	84,557,902
Effect of dilutive securities:
Weighted-average shares of Class A common stock outstanding - diluted (in shares)	84,727,825	84,886,319	86,289,084	84,870,312
Earnings per share of Class A common stock - basic (in usd per share)	$ 0.50	$ 0.46	$ 1.45	$ 1.22
Earnings per share of Class A common stock - diluted (in usd per share)	$ 0.50	$ 0.46	$ 1.45	$ 1.21

Earnings per share - Common Sto

Earnings per share - Common Stock Equivalents Excluded from the Computation of Diluted Net Income Per Share (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities number of weighted-average common stock equivalents excluded from the computation of diluted net income per share (in shares)	532,087	3,879,176	819,535	4,494,531
Class B common stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities number of weighted-average common stock equivalents excluded from the computation of diluted net income per share (in shares)	532,058	3,533,885	811,748	4,236,271
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities number of weighted-average common stock equivalents excluded from the computation of diluted net income per share (in shares)	0	307,606	3,503	250,595
Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities number of weighted-average common stock equivalents excluded from the computation of diluted net income per share (in shares)	0	968	2,229	5,684
Performance stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities number of weighted-average common stock equivalents excluded from the computation of diluted net income per share (in shares)	29	36,717	2,055	1,981

Income taxes - Additional infor

Income taxes - Additional information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024 USD ($) shares	Sep. 30, 2023 USD ($) shares	Sep. 30, 2024 USD ($) agreement shares	Sep. 30, 2023 USD ($) shares	Dec. 31, 2023 USD ($)
Tax Credit Carryforward [Line Items]
Effective income tax rate	27.70%	24.50%	27.70%	26%
Net deferred tax assets	$ 479,890		$ 479,890		$ 502,544
Total liability related to uncertain tax positions	$ 278		$ 278		273
Number of tax receivable agreements \| agreement			2
Applicable tax savings (in percentage)	85%		85%
Percentage of remaining tax savings			15%
Decrease in deferred tax assets	$ (223)	$ (1,106)	$ (1,704)	$ (4,358)
Deferred tax assets, amount	4,137	18,675	24,999	77,730
Deferred tax liabilities, amount	3,548	$ 11,310	14,762	$ 17,077
Tax benefit obligation	$ 477,411		$ 477,411		$ 495,662
Class A common stock
Tax Credit Carryforward [Line Items]
Number of shares exchanged (in shares) \| shares	162,324	1,417,603	908,960	3,412,312
TRA Holders
Tax Credit Carryforward [Line Items]
Applicable tax savings (in percentage)	85%		85%

Income taxes - Schedule of Futu

Income taxes - Schedule of Future Payments Under Tax Benefit Arrangements (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Remainder of 2024	$ 13,392
2025	50,231
2026	52,314
2027	48,588
2028	42,149
Thereafter	270,737
Total	$ 477,411	$ 495,662

Commitments and contingencies (

Commitments and contingencies (Details) - Planet Fitmex, LLC - Mexico Acquisition $ in Thousands		9 Months Ended
	Oct. 20, 2023 USD ($) store	Sep. 30, 2023 USD ($)
Commitment And Contingencies [Line Items]
Legal settlement		$ 6,250
Settlement	$ 31,619
Clubs acquired from the Company \| store	5

Segments - Additional Informati

Segments - Additional Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
Segments - Additional Information (Details) $ in Thousands	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) segment	Sep. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments \| segment			3
Total revenue	$ 292,246	$ 277,551	$ 841,204	$ 786,240
Franchise
Segment Reporting Information [Line Items]
Total revenue	102,415	98,165	314,225	289,691
Franchise \| International
Segment Reporting Information [Line Items]
Total revenue	3,513	2,956	10,254	7,855
Corporate-owned clubs
Segment Reporting Information [Line Items]
Total revenue	128,132	113,245	375,976	332,885
Corporate-owned clubs \| International
Segment Reporting Information [Line Items]
Total revenue	1,416	1,165	3,915	3,380
Long-lived assets	12,127		12,127		$ 3,609
Placement services \| Franchise
Segment Reporting Information [Line Items]
Total revenue	$ 4,528	$ 5,884	$ 11,780	$ 13,760

Segments - Schedule of Financia

Segments - Schedule of Financial Information for the Company's Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Segment Reporting Information [Line Items]
Total revenue	$ 292,246	$ 277,551	$ 841,204	$ 786,240
Total Segment EBITDA	120,944	109,734	352,616	311,813
Corporate and other
Segment Reporting Information [Line Items]
Total Segment EBITDA	(20,408)	(18,547)	(57,191)	(52,238)
Franchise segment
Segment Reporting Information [Line Items]
Total revenue	102,415	98,165	314,225	289,691
Franchise segment \| Operating segments
Segment Reporting Information [Line Items]
Total Segment EBITDA	72,758	67,583	226,478	198,418
Corporate-owned clubs
Segment Reporting Information [Line Items]
Total revenue	128,132	113,245	375,976	332,885
Corporate-owned clubs \| Operating segments
Segment Reporting Information [Line Items]
Total Segment EBITDA	50,107	44,264	141,507	126,499
Equipment segment
Segment Reporting Information [Line Items]
Total revenue	61,699	66,141	151,003	163,664
Equipment segment \| Operating segments
Segment Reporting Information [Line Items]
Total Segment EBITDA	18,487	16,434	41,822	39,134
US \| Franchise segment
Segment Reporting Information [Line Items]
Total revenue	98,902	95,209	303,971	281,836
US \| Corporate-owned clubs
Segment Reporting Information [Line Items]
Total revenue	126,716	112,080	372,061	329,505
US \| Equipment segment
Segment Reporting Information [Line Items]
Total revenue	58,081	62,605	140,824	158,335
International \| Franchise segment
Segment Reporting Information [Line Items]
Total revenue	3,513	2,956	10,254	7,855
International \| Corporate-owned clubs
Segment Reporting Information [Line Items]
Total revenue	1,416	1,165	3,915	3,380
International \| Equipment segment
Segment Reporting Information [Line Items]
Total revenue	$ 3,618	$ 3,536	$ 10,179	$ 5,329

Segments - Schedule of Segment

Segments - Schedule of Segment EBITDA to Income Before Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Segment Reporting [Abstract]
Total Segment EBITDA	$ 120,944	$ 109,734	$ 352,616	$ 311,813
Depreciation and amortization	41,033	37,477	120,230	110,254
Other (expense) income, net	(558)	148	1,132	631
Losses from equity-method investments, net of tax	(782)	(242)	(3,198)	(580)
Income from operations	81,251	72,351	234,452	201,508
Interest income	5,610	4,245	16,687	12,339
Interest expense	(26,603)	(21,704)	(72,569)	(64,771)
Other (expense) income, net	(558)	148	1,132	631
Income before income taxes	$ 59,700	$ 55,040	$ 179,702	$ 149,707

Segments - Schedule of Company'

Segments - Schedule of Company's Assets by Reportable Segment (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Segment Reporting, Asset Reconciling Item [Line Items]
Total consolidated assets	$ 3,048,181	$ 2,969,693
Operating segments \| Franchise
Segment Reporting, Asset Reconciling Item [Line Items]
Total consolidated assets	164,678	169,836
Operating segments \| Corporate-owned clubs
Segment Reporting, Asset Reconciling Item [Line Items]
Total consolidated assets	1,678,418	1,637,146
Operating segments \| Equipment
Segment Reporting, Asset Reconciling Item [Line Items]
Total consolidated assets	196,198	176,249
Unallocated
Segment Reporting, Asset Reconciling Item [Line Items]
Total consolidated assets	$ 1,008,887	$ 986,462

Segments - Schedule of Compan_2

Segments - Schedule of Company's Goodwill by Reportable Segment (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Segment Reporting, Other Significant Reconciling Item [Line Items]
Consolidated goodwill	$ 719,127	$ 717,502
Franchise
Segment Reporting, Other Significant Reconciling Item [Line Items]
Consolidated goodwill	16,938	16,938
Corporate-owned clubs
Segment Reporting, Other Significant Reconciling Item [Line Items]
Consolidated goodwill	609,523	607,898
Equipment
Segment Reporting, Other Significant Reconciling Item [Line Items]
Consolidated goodwill	$ 92,666	$ 92,666

Corporate-owned and franchise_3

Corporate-owned and franchisee-owned clubs (Details) - store	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Number Of Stores [Roll Forward]
Clubs operated at beginning of period	2,617	2,472	2,575	2,410
New clubs opened	21	26	64	88
Clubs debranded, sold, closed or consolidated	(1)	0	(2)	0
Clubs operated at end of period	2,637	2,498	2,637	2,498
Franchisee-owned clubs
Number Of Stores [Roll Forward]
Clubs operated at beginning of period	2,358	2,230	2,319	2,176
New clubs opened	12	24	52	82
Clubs debranded, sold, closed or consolidated	(1)	0	(2)	(4)
Clubs operated at end of period	2,369	2,254	2,369	2,254
Corporate-owned clubs
Number Of Stores [Roll Forward]
Clubs operated at beginning of period	259	242	256	234
New clubs opened	9	2	12	6
Clubs acquired from franchisees	0	0	0	4
Clubs operated at end of period	268	244	268	244