Eagle Materials (EXP) 10-Q25 Jan 242023 Q3 Quarterly reportFinancial data

Company Profile

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
Document and Entity Information - shares	Dec. 31, 2023	Jan. 23, 2024
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Dec. 31, 2023
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q3
Entity Registrant Name	EAGLE MATERIALS INC.
Entity Central Index Key	0000918646
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Current Fiscal Year End Date	--03-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		34,450,244
Entity Shell Company	false
Entity Small Business	false
Entity Emerging Growth Company	false
Title of 12(b) Security	Common Stock (par value $.01 per share)
Trading Symbol	EXP
Security Exchange Name	NYSE
Entity File Number	1-12984
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	75-2520779
Entity Address, Address Line One	5960 Berkshire Lane
Entity Address, Address Line Two	Suite 900
Entity Address, City or Town	Dallas
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	75225
City Area Code	214
Local Phone Number	432-2000
Document Quarterly Report	true
Document Transition Report	false

Consolidated Statements of Earn

Consolidated Statements of Earnings (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Income Statement [Abstract]
Revenue	$ 558,833	$ 511,487	$ 1,782,590	$ 1,677,942
Cost of Goods Sold	378,205	352,717	1,216,949	1,174,067
Gross Profit	180,628	158,770	565,641	503,875
Equity in Earnings of Unconsolidated Joint Venture	9,285	11,377	22,790	23,631
Corporate General and Administrative Expense	(14,201)	(12,497)	(42,456)	(37,944)
Other Non-Operating Income (Loss)	1,019	2,210	2,837	911
Interest Expense, net	(10,128)	(8,932)	(32,571)	(24,842)
Earnings before Income Taxes	166,603	150,928	516,241	465,631
Income Taxes	(37,465)	(33,744)	(115,701)	(104,447)
Net Earnings	$ 129,138	$ 117,184	$ 400,540	$ 361,184
EARNINGS PER SHARE
Basic	$ 3.75	$ 3.23	$ 11.47	$ 9.72
Diluted	$ 3.72	$ 3.2	$ 11.38	$ 9.66
AVERAGE SHARES OUTSTANDING
Basic	34,466,141	36,336,056	34,931,378	37,149,927
Diluted	34,749,721	36,605,982	35,201,658	37,395,586
CASH DIVIDENDS PER SHARE	$ 0.25	$ 0.25	$ 0.75	$ 0.75

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Earnings (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Statement of Comprehensive Income [Abstract]
Net Income (Loss)	$ 129,138	$ 117,184	$ 400,540	$ 361,184
Net Actuarial Change in Defined Benefit Plans
Amortization of Net Actuarial Loss	63	30	189	90
Tax Expense	(15)	(7)	(45)	(20)
Comprehensive Earnings	$ 129,186	$ 117,207	$ 400,684	$ 361,254

Consolidated Balance Sheets (Un

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Dec. 31, 2023	Mar. 31, 2023
Current Assets
Cash and Cash Equivalents	$ 48,912	$ 15,242
Accounts and Notes Receivable, net	192,982	195,052
Inventories	333,828	291,882
Income Tax Receivable	2,917	16,267
Prepaid and Other Assets	9,092	3,060
Total Current Assets	587,731	521,503
Property, Plant, and Equipment, net	1,667,915	1,662,061
Notes Receivable	0	7,382
Investment in Joint Venture	104,822	89,111
Operating Lease Right-of-Use Assets	20,670	20,759
Goodwill and Intangible Assets, net	488,088	466,043
Other Assets	21,114	14,143
Total Assets	2,890,340	2,781,002
Current Liabilities
Accounts Payable	117,270	110,408
Accrued Liabilities	88,178	86,472
Income Taxes Payable	1,848	0
Operating Lease Liabilities	8,217	6,009
Current Portion of Long-term Debt	10,000	10,000
Total Current Liabilities	225,513	212,889
Long-term Debt	1,022,482	1,079,032
Noncurrent Operating Lease Liabilities	20,685	24,940
Other Long-term Liabilities	42,331	41,603
Deferred Income Taxes	246,168	236,844
Total Liabilities	1,557,179	1,595,308
Stockholders’ Equity
Preferred Stock, Par Value $0.01; Authorized 5,000,000 Shares; None Issued	0	0
Common Stock, Par Value $0.01; Authorized 100,000,000 Shares;Issued and Outstanding 34,474,435 and 35,768,376 Shares, respectively	345	358
Capital in Excess of Par Value	0	0
Accumulated Other Comprehensive Losses	(3,403)	(3,547)
Retained Earnings	1,336,219	1,188,883
Total Stockholders’ Equity	1,333,161	1,185,694
Total Liabilities and Stockholders' Equity	$ 2,890,340	$ 2,781,002

Consolidated Balance Sheets (_2

Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Dec. 31, 2023	Mar. 31, 2023
Statement of Financial Position [Abstract]
Preferred Stock, Par Value	$ 0.01	$ 0.01
Preferred Stock, Authorized	5,000,000	5,000,000
Preferred Stock, Issued	0	0
Common Stock, Par Value	$ 0.01	$ 0.01
Common Stock, Authorized	100,000,000	100,000,000
Common Stock, Issued	34,474,435	35,768,376
Common Stock, Outstanding	34,474,435	35,768,376

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
CASH FLOWS FROM OPERATING ACTIVITIES
Net Earnings	$ 400,540	$ 361,184
Adjustments to Reconcile Net Earnings to Net Cash Provided by Operating Activities, Net of Effect of Non-Cash Activity
Depreciation, Depletion and Amortization	111,347	103,689
Deferred Income Tax Provision	9,324	7,227
Stock Compensation Expense	15,356	13,636
Equity in Earnings of Unconsolidated Joint Venture	(22,790)	(23,631)
Distributions from Joint Venture	7,000	19,000
Changes in Operating Assets and Liabilities
Accounts and Notes Receivable	9,452	9,300
Inventories	(27,137)	(3,219)
Accounts Payable and Accrued Liabilities	3,278	(13,959)
Other Assets	(19,428)	4,411
Income Taxes Payable (Receivable)	13,607	2,473
Net Cash Provided by Operating Activities	500,549	480,111
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant, and Equipment	(87,848)	(60,951)
Acquisition Spending	(55,053)	(158,451)
Net Cash Used in Investing Activities	(142,901)	(219,402)
CASH FLOWS FROM FINANCING ACTIVITIES
Borrowings Under Revolving Credit Facility	222,000	200,000
Repayment of Borrowings Under Revolving Credit Facility	(272,000)	(70,000)
Repayment of Term Loan	(7,500)	(5,000)
Dividends Paid to Stockholders	(26,692)	(28,421)
Purchase and Retirement of Common Stock	(248,852)	(313,898)
Proceeds from Stock Option Exercises	11,560	840
Payment of Debt Issuance Costs	0	(903)
Shares Redeemed to Settle Employee Taxes on Stock Compensation	(2,494)	(1,806)
Net Cash Used in Financing Activities	(323,978)	(219,188)
NET INCREASE IN CASH AND CASH EQUIVALENTS	33,670	41,521
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	15,242	19,416
CASH AND CASH EQUIVALENTS AT END OF PERIOD	$ 48,912	$ 60,937

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock [Member]	Capital in Excess of Par Value [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Losses [Member]
Beginning balance at Mar. 31, 2022	$ 1,133,556	$ 387		$ 1,136,344	$ (3,175)
Net Income (Loss)	105,005			105,005
Stock Compensation Expense	5,146		$ 5,146
Stock Option Exercises and Restricted Share Issuances	667	1	666
Shares Redeemed to Settle Employee Taxes	(1,497)		(1,497)
Purchase and Retirement of Common Stock	(109,612)	(8)	(4,315)	(105,289)
Dividends to Shareholders	(9,507)			(9,507)
Unfunded Pension Liability, net of tax	23				23
Ending Balance at Jun. 30, 2022	1,123,781	380		1,126,553	(3,152)
Beginning balance at Mar. 31, 2022	1,133,556	387		1,136,344	(3,175)
Net Income (Loss)	361,184
Ending Balance at Dec. 31, 2022	1,165,514	362		1,168,257	(3,105)
Beginning balance at Jun. 30, 2022	1,123,781	380		1,126,553	(3,152)
Net Income (Loss)	138,995			138,995
Stock Compensation Expense	4,402		4,402
Stock Option Exercises and Restricted Share Issuances	68		68
Shares Redeemed to Settle Employee Taxes	(309)		(309)
Purchase and Retirement of Common Stock	(100,786)	(9)	(4,161)	(96,616)
Dividends to Shareholders	(9,471)			(9,471)
Unfunded Pension Liability, net of tax	24				24
Ending Balance at Sep. 30, 2022	1,156,704	371		1,159,461	(3,128)
Net Income (Loss)	117,184			117,184
Stock Compensation Expense	4,088		4,088
Stock Option Exercises and Restricted Share Issuances	105		105
Purchase and Retirement of Common Stock	(103,500)	(9)	(4,193)	(99,298)
Dividends to Shareholders	(9,090)			(9,090)
Unfunded Pension Liability, net of tax	23				23
Ending Balance at Dec. 31, 2022	1,165,514	362		1,168,257	(3,105)
Beginning balance at Mar. 31, 2023	1,185,694	358		1,188,883	(3,547)
Net Income (Loss)	120,849			120,849
Stock Compensation Expense	6,457		6,457
Stock Option Exercises and Restricted Share Issuances	10,385	2	10,383
Shares Redeemed to Settle Employee Taxes	(1,360)	(1)	(1,359)
Purchase and Retirement of Common Stock	(74,799)	(5)	(15,481)	(59,313)
Dividends to Shareholders	(8,863)			(8,863)
Unfunded Pension Liability, net of tax	48				48
Ending Balance at Jun. 30, 2023	1,238,411	354		1,241,556	(3,499)
Beginning balance at Mar. 31, 2023	1,185,694	358		1,188,883	(3,547)
Net Income (Loss)	400,540
Ending Balance at Dec. 31, 2023	1,333,161	345		1,336,219	(3,403)
Beginning balance at Jun. 30, 2023	1,238,411	354		1,241,556	(3,499)
Net Income (Loss)	150,553			150,553
Stock Compensation Expense	4,542		4,542
Stock Option Exercises and Restricted Share Issuances	1,084		1,084
Shares Redeemed to Settle Employee Taxes	(1,134)		(1,134)
Purchase and Retirement of Common Stock	(78,037)	(4)	(4,492)	(73,541)
Dividends to Shareholders	(8,833)			(8,833)
Unfunded Pension Liability, net of tax	48				48
Ending Balance at Sep. 30, 2023	1,306,634	350		1,309,735	(3,451)
Net Income (Loss)	129,138			129,138
Stock Compensation Expense	4,357		4,357
Stock Option Exercises and Restricted Share Issuances	91		91
Purchase and Retirement of Common Stock	(98,504)	(5)	$ (4,448)	(94,051)
Dividends to Shareholders	(8,603)			(8,603)
Unfunded Pension Liability, net of tax	48				48
Ending Balance at Dec. 31, 2023	$ 1,333,161	$ 345		$ 1,336,219	$ (3,403)

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
Pay vs Performance Disclosure - USD ($) $ in Thousands	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2023	Dec. 31, 2022
Pay vs Performance Disclosure
Net Income (Loss)	$ 129,138	$ 150,553	$ 120,849	$ 117,184	$ 138,995	$ 105,005	$ 400,540	$ 361,184

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
Insider Trading Arrangements	Dec. 31, 2023 shares
Trading Arrangements, by Individual
Material Terms of Trading Arrangement	None of the Company's directors or officers adopted , modified , or terminated a Rule 10b5-1 trading arrangement, or a non-Rule 10b5-1 trading arrangement during the Company's fiscal third quarter ended December 31, 2023, except as follows: On December 6, 2023 , Michael R. Haack , President and Chief Executive Officer , adopted a Rule 10b5-1 trading arrangement intended to satisfy the affirmative defense of Rule 10b5-1(c) for the sale of up to 10,000 shares of the Company’s common stock and the exercise of up to 21,700 stock options and the sale of the underlying shares, subject to certain conditions. Trades may occur under Mr. Haack’s plan during the period from (a) the later of March 6, 2024, or the third trading day after the filing of the Company’s Form 10-Q for the quarter ended December 31, 2023, through (b) March 5, 2025 .
Other Officers or Directors [Member]
Trading Arrangements, by Individual
Title	directors or officers
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false
Rule 10b5-1 Arrangement Modified	false
Non-Rule 10b5-1 Arrangement Modified	false
Michael R Haack [Member]
Trading Arrangements, by Individual
Name	Michael R. Haack
Title	President and Chief Executive Officer
Rule 10b5-1 Arrangement Adopted	true
Adoption Date	December 6, 2023
Arrangement Duration	455 days
Aggregate Available	10,000
Expiration Date	March 5, 2025

BASIS OF PRESENTATION

BASIS OF PRESENTATION	9 Months Ended
BASIS OF PRESENTATION	Dec. 31, 2023
Accounting Policies [Abstract]
BASIS OF PRESENTATION	(A) BASIS OF PRESENTATION The accompanying Unaudited Consolidated Financial Statements as of and for the three and nine months ended December 31, 2023, include the accounts of Eagle Materials Inc. and its majority-owned subsidiaries (collectively, the Company, us, or we) and have been prepared by the Company, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission. These Unaudited Consolidated Financial Statements should be read in conjunction with the Audited Consolidated Financial Statements and the notes thereto included in our Annual Report on Form 10-K filed with the Securities and Exchange Commission on May 19, 2023. Certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles have been condensed or omitted pursuant to such rules and regulations, although we believe that the disclosures are adequate to make the information presented not misleading. In our opinion, all adjustments (consisting solely of normal recurring adjustments) necessary to present fairly the information in the following unaudited consolidated financial statements of the Company have been included. The results of operations for interim periods are not necessarily indicative of the results for the full year. The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosures of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. Recent Accounting Pronouncements There have been no recent accounting pronouncements that are expected to materially affect the Company.

SUPPLEMENTAL CASH FLOW INFORMAT

SUPPLEMENTAL CASH FLOW INFORMATION	9 Months Ended
SUPPLEMENTAL CASH FLOW INFORMATION	Dec. 31, 2023
Supplemental Cash Flow Elements [Abstract]
SUPPLEMENTAL CASH FLOW INFORMATION	(B) SUPPLEMENTAL CASH FLOW INFORMATION Supplemental cash flow information is as follows: For the Nine Months Ended December 31, 2023 2022 (dollars in thousands) Cash Payments Interest $ 38,797 $ 26,526 Income Taxes 92,718 94,793 Operating Cash Flows Used for Operating Leases 7,016 6,360 Non-Cash Financing Activities Excise Tax on Share Repurchases $ 3,227 $ — Right-of-Use Assets Acquired for Capitalized Operating Leases 6,018 —

ACQUISITION

ACQUISITION	9 Months Ended
ACQUISITION	Dec. 31, 2023
Business Combinations [Abstract]
ACQUISITION	(C) ACQUISITION On May 3, 2023, we purchased the assets of a cement import terminal in Stockton, California (the Stockton Terminal Acquisition), which was accounted for under the acquisition method. The purchase price of the Stockton Terminal Acquisition was approximately $ 55.1 million. The purchase price was funded through borrowings under our revolving credit facility. Operations related to the Stockton Terminal Acquisition are included in the Cement business in our segment reporting from May 3, 2023, through December 31, 2023. The following table summarizes the allocation of the purchase price to the fair value of assets acquired and liabilities assumed (based on Level 3 inputs) as of December 31, 2023: Fair Value Inventory $ 14,809 Prepaid and Other Current Assets 179 Property, Plant, and Equipment 12,737 Lease Right-of-Use Assets 1,646 Intangible Assets 16,100 Lease Obligations ( 1,646 ) Other Long-term Liabilities ( 630 ) Goodwill 11,858 Total Purchase Price $ 55,053 The estimated useful lives assigned to Property, Plant, and Equipment range from 5 to 30 years , while the estimated useful lives assigned to Intangible Assets range from 2 to 15 years . All goodwill generated from the Stockton Terminal Acquisition is deductible for income tax purposes. The following table presents the Revenue and Operating Loss related to the Stockton Terminal Acquisition that has been included in our Consolidated Statement of Earnings from May 3, 2023, through December 31, 2023. For the Three Months Ended For the Nine Months Ended December 31, 2023 (dollars in thousands) Revenue $ 11,247 $ 32,529 Operating Loss $ ( 56 ) $ ( 2,106 ) Operating Earnings shown above for the three months ended December 31, 2023 were affected by approximately $ 0.7 million related to depreciation and amortization. Operating Loss for the nine months ended December 31, 2023, was affected by approximately $ 1.9 million and $ 3.9 million related to depreciation and amortization and the recording of acquired inventories at fair value, respectively.

REVENUE

REVENUE	9 Months Ended
REVENUE	Dec. 31, 2023
Revenue from Contract with Customer [Abstract]
REVENUE	(D) REVENUE We earn Revenue primarily from the sale of products, which include cement, concrete, aggregates, gypsum wallboard, and recycled paperboard. The vast majority of Revenue from the sale of concrete, aggregates, and gypsum wallboard is originated by purchase orders from our customers, who are mostly third-party contractors and suppliers. Revenue from the sale of cement is recognized at the point-of-sale to customers under sales orders. Revenue from our Recycled Paperboard segment is generated mainly through long-term supply agreements. These agreements do not have a stated maturity date, but may be terminated by either party with a two to three-year notice period. We invoice customers upon shipment, and our collection terms range from 30 to 75 days. Revenue from the sale of cement, concrete, aggregates, and gypsum wallboard not related to long-term supply agreements is recognized upon shipment of the related products to customers, which is when title and ownership are transferred, and the customer is obligated to pay. Revenue from sales under our long-term supply agreements is also recognized upon transfer of control to the customer, which generally occurs at the time the product is shipped from the production facility or terminal location. Our long-term supply agreements with customers define, among other commitments, the volume of product that we must provide and the volume that the customer must purchase by the end of the defined periods. Pricing structures under our agreements are generally market-based, but are subject to certain contractual adjustments. Shortfall amounts, if applicable under these arrangements, are constrained and not recognized as Revenue until an agreement is reached with the customer and, therefore, are not subject to the risk of reversal. The Company offers certain of its customers, including those with long-term supply agreements, rebates and incentives, which we treat as variable consideration. We adjust the amount of Revenue recognized for the variable consideration using the most likely amount method based on past history and projected volumes in the rebate and incentive period. Any amounts billed to customers for taxes are excluded from Revenue. The Company has elected to treat freight and delivery charges we pay for the delivery of goods to our customers as a fulfillment activity rather than a separate performance obligation. When we arrange for a third party to deliver products to customers, fees for shipping and handling billed to the customer are recorded as Revenue, while costs we incur for shipping and handling are recorded as expenses and included in Cost of Goods Sold. Other Non-Operating Income includes lease and rental income, asset sale income, non-inventoried aggregates sales income, distribution center income, and trucking income, as well as other miscellaneous revenue items and costs that have not been allocated to a business segment. See Footnote (N) to the Unaudited Consolidated Financial Statements for disaggregation of revenue by segment.

ACCOUNTS AND NOTES RECEIVABLE

ACCOUNTS AND NOTES RECEIVABLE	9 Months Ended
ACCOUNTS AND NOTES RECEIVABLE	Dec. 31, 2023
Receivables [Abstract]
ACCOUNTS AND NOTES RECEIVABLE	(E) ACCOUNTS AND NOTES RECEIVABLE Accounts Receivable are shown net of the allowance for credit losses totaling $ 7.0 million and $ 6.9 million at December 31, 2023, and March 31, 2023, respectively. We perform ongoing credit evaluations of our customers’ financial condition and generally require no collateral from our customers. The allowance for credit losses is based upon an analysis of economic trends in the construction industry, detailed analysis of the expected collectability of accounts receivable that are past due, and the expected collectability of overall receivables. We have no significant credit risk concentration among our diversified customer base.

INVENTORIES

INVENTORIES	9 Months Ended
INVENTORIES	Dec. 31, 2023
Inventory Disclosure [Abstract]
INVENTORIES	(F) INVENTORIES Inventories are stated at the lower of average cost (including applicable material, labor, depreciation, and plant overhead) or net realizable value. Raw Materials and Materials-in-Progress include clinker, which is an intermediary product before it is ground into cement powder. Quantities of Raw Materials and Materials-in-Progress, Aggregates, and Coal inventories, are based on measured volumes, subject to estimation based on the size and location of the inventory piles, and are converted to tonnage using standard inventory density factors. Inventories consist of the following: December 31, March 31, 2023 2023 (dollars in thousands) Raw Materials and Materials-in-Progress $ 104,465 $ 96,880 Finished Cement 55,480 46,364 Aggregates 10,580 8,309 Gypsum Wallboard 7,183 4,244 Recycled Paperboard 13,471 8,651 Repair Parts and Supplies 123,555 112,885 Fuel and Coal 19,094 14,549 $ 333,828 $ 291,882

ACCRUED EXPENSES

ACCRUED EXPENSES	9 Months Ended
ACCRUED EXPENSES	Dec. 31, 2023
Payables and Accruals [Abstract]
ACCRUED EXPENSES	(G) ACCRUED EXPENSES Accrued Expenses consist of the following: December 31, March 31, 2023 2023 (dollars in thousands) Payroll and Incentive Compensation $ 39,703 $ 32,742 Benefits 17,073 16,130 Dividends 8,793 9,186 Interest 1,297 7,163 Property Taxes 5,817 6,671 Power and Fuel 3,479 3,051 Freight 4,643 1,663 Legal and Professional 2,083 1,691 Sales and Use Tax 1,160 1,452 Other 4,130 6,723 $ 88,178 $ 86,472

LEASES

LEASES	9 Months Ended
LEASES	Dec. 31, 2023
Leases [Abstract]
LEASES	(H) LEASES We lease certain real estate, buildings, and equipment. Certain of these leases contain escalations of rent over the term of the lease, as well as options for us to extend the term of the lease at the end of the original term. These extensions range from periods of 1 to 20 years . Our lease agreements do not contain material residual value guarantees or material restrictive covenants. In calculating the present value of future minimum lease payments, we use the rate implicit in the lease if it can be determined. Otherwise, we use our incremental borrowing rate in effect at the commencement of the lease to determine the present value of the future minimum lease payments. Additionally, we lease certain equipment under short-term leases with initial terms of less than 12 months, which are not recorded on the balance sheet. Lease expense for our operating and short-term leases is as follows: For the Three Months Ended December 31, For the Nine Months Ended December 31, 2023 2022 2023 2022 (dollars in thousands) Operating Lease Cost $ 1,921 $ 1,953 $ 6,148 $ 5,351 Short-term Lease Cost 187 135 601 410 Total Lease Cost $ 2,108 $ 2,088 $ 6,749 $ 5,761 The Right-of-Use Assets and Lease Liabilities are reflected on our Balance Sheet as follows: December 31, March 31, 2023 2023 (dollars in thousands) Operating Leases Operating Lease Right-of-Use Assets $ 20,670 $ 20,759 Current Operating Lease Liabilities $ 8,217 $ 6,009 Noncurrent Operating Lease Liabilities 20,685 24,940 Total Operating Lease Liabilities $ 28,902 $ 30,949 Future payments for operating leases are as follows (dollars in thousands): Fiscal Year Amount 2024 (remaining three months) $ 2,269 2025 8,653 2026 4,776 2027 3,606 2028 2,735 Thereafter 13,664 Total Lease Payments $ 35,703 Less: Imputed Interest ( 6,801 ) Present Value of Lease Liabilities $ 28,902 Weighted-Average Remaining Lease Term (in years) 9.3 Weighted-Average Discount Rate 4.17 %

SHARE-BASED EMPLOYEE COMPENSATI

SHARE-BASED EMPLOYEE COMPENSATION	9 Months Ended
SHARE-BASED EMPLOYEE COMPENSATION	Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]
SHARE-BASED EMPLOYEE COMPENSATION	(I) S hare -BASED EMPLOYEE COMPENSATION On August 3, 2023, our stockholders approved the Eagle Materials Inc. 2023 Equity Incentive Plan (the 2023 Plan), which reserves 1,425,000 shares for future grants of stock awards. Under the terms of the 2023 Plan, we can issue equity awards, including stock options, restricted stock units, restricted stock, and stock appreciation rights, to employees of the Company, members of the Board of Directors, consultants, independent contractors, and agents of the Company. The Compensation Committee of our Board of Directors specifies grant terms for awards under the Plan. Long-Term Compensation Plans OPTIONS In May 2023, under the 2013 Amended and Restated Incentive Plan (the Prior Plan), the Compensation Committee of the Board of Directors approved the granting to certain officers and key employees an aggregate of 2,296 performance-vesting stock options that will be earned only if certain performance conditions are satisfied (the Fiscal 2024 Employee Performance Stock Option Award). The performance criteria for the Fiscal 2024 Employee Performance Stock Option Award are based upon the achievement of certain levels of return on equity (as defined in the option agreements), ranging from 10.0 % to 20.0 %, for the performance periods described in the table below. All stock options in each performance period will be earned if the return on equity is 20.0 % or greater. If the return on equity is less than 20 % but at least 10 % in any performance period, the amount of stock options earned in such period will be reduced proportionately using straight-line interpolation, such that approximately 66.7 % of the amount of stock options granted will be earned if the return on equity is 10.0%. If the Company does not achieve a return on equity of at least 10.0 % during any performance period, all stock option awards for that performance period will be forfeited. The stock option performance periods are as follows: Options Performance Period Vesting Date One-Year Performance Shares 574 April 1, 2023 to March 31, 2024 May 2024 Two-Year Performance Shares 574 April 1, 2023 to March 31, 2025 May 2025 Three-Year Performance Shares 1,148 April 1, 2023 to March 31, 2026 May 2026 The stock options have a term of 10 years from the grant date. The Compensation Committee also approved the granting of 1,914 time-vesting stock options to the same officers and key employees, which vest ratably over three years (the Fiscal 2024 Employee Time-Vesting Stock Option Award). In August 2023, under the 2023 Plan, the Compensation Committee granted 1,348 options to members of the Board of Directors (the Fiscal 2024 Board of Directors Stock Option Award). Options granted under the Fiscal 2024 Board of Directors Stock Option Award vest one year after the grant date, and can be exercised from the date of vesting until their expiration on the tenth anniversary of the grant date. The Fiscal 2024 Employee Performance Stock Option Award, the Fiscal 2024 Employee Time-Vesting Stock Option Award, and the Fiscal 2024 Board of Directors Stock Option Award were valued at their grant date using the Black-Scholes option pricing model. The weighted-average assumptions used in the Black-Scholes model to value the option awards for fiscal 2024 are as follows: Dividend Yield 0.8 % Expected Volatility 38.8 % Risk-Free Interest Rate 3.7 % Expected Life 6.0 years In addition to the stock options described above, we issue stock options to certain employees from time to time. Any options issued are valued using the Black-Scholes options pricing model on the grant date and expensed over the vesting period. Stock option expense for all outstanding stock option awards totaled approximately $ 0.5 million and $ 1.5 million for the three and nine months ended December 31, 2023, respectively, and $ 0.8 million and $ 2.7 million for the three and nine months ended December 31, 2022, respectively. At December 31, 2023, there was approximately $ 2.2 million of unrecognized compensation cost related to outstanding stock options, which is expected to be recognized over a weighted-average period of 1.9 years. The following table represents stock option activity for the nine months ended December 31, 2023: Number Weighted- Outstanding Options at March 31, 2023 436,949 $ 89.69 Granted 5,558 $ 172.62 Exercised ( 131,099 ) $ 88.17 Cancelled ( 1,000 ) $ 73.37 Outstanding Options at December 31, 2023 310,408 $ 91.86 Options Exercisable at December 31, 2023 215,822 Weighted-Average Fair Value of Options Granted $ 69.84 The following table summarizes information about stock options outstanding at December 31, 2023: Options Outstanding Options Exercisable Range of Exercise Prices Number of Weighted- Weighted- Number of Weighted- $ 59.32 - $ 81.28 113,490 5.91 $ 62.49 71,086 $ 63.67 $ 87.37 - $ 106.24 125,721 4.60 $ 95.77 122,005 $ 95.72 $ 118.27 - $ 166.75 71,197 8.34 $ 131.77 22,731 $ 130.79 310,408 5.94 $ 91.86 215,822 $ 88.86 At December 31, 2023, the aggregate intrinsic value of the outstanding and exercisable options was approximately $ 34.4 million and $ 24.6 million, respectively. The total intrinsic value of options exercised during the nine months ended December 31, 2023, was approximately $ 10.6 million. RESTRICTED STOCK In May 2023, under the Prior Plan, the Compensation Committee approved the granting to certain officers and key employees an aggregate of 45,693 shares of performance-vesting restricted stock that will be earned if certain performance conditions are satisfied (the Fiscal 2024 Employee Restricted Stock Performance Award). The performance criteria for the Fiscal 2024 Employee Restricted Stock Performance Award are based upon the achievement of certain levels of return on equity (as defined in the award agreement), ranging from 10.0 % to 20.0 %, for the performance periods described in the table below. All restricted shares in each performance period will be earned if the return on equity is 20.0 % or greater. If the return on equity is less than 20 % but at least 10 % in any performance period, the amount of shares earned in such period will be reduced proportionately using straight-line interpolation, such that approximately 66.7 % of the amount of shares issued will be earned if the return on equity is 10.0%. If the Company does not achieve a return on equity of at least 10.0 % during any performance period, all awards for that performance period will be forfeited. The restricted share performance periods are as follows: Shares Performance Period Vesting Date One-Year Performance Shares 11,424 April 1, 2023 to March 31, 2024 May 2024 Two-Year Performance Shares 11,424 April 1, 2023 to March 31, 2025 May 2025 Three-Year Performance Shares 22,845 April 1, 2023 to March 31, 2026 May 2026 The Compensation Committee also approved the granting of 38,072 shares of time-vesting restricted stock to the same officers and key employees, which vest ratably over three years (the Fiscal 2024 Employee Restricted Stock Time-Vesting Award). The Fiscal 2024 Employee Restricted Stock Performance Award and the Fiscal 2024 Employee Restricted Stock Time-Vesting Award were valued at the closing price of the stock on the grant date and are being expensed over a three-year period. In August 2023, under the 2023 Plan, we granted 10,755 shares of restricted stock to members of the Board of Directors (the Fiscal 2024 Board of Directors Restricted Stock Award). Restrictions on these shares will lapse one year after the grant date. The Fiscal 2024 Board of Directors Restricted Stock Award was valued at the closing price of the stock on the grant date, and is being expensed over a one-year period. In addition to the restricted stock described above, from time to time we issue restricted stock to certain employees. These awards are valued at the closing price of the stock on the grant date and expensed over the vesting period. The fair value of restricted stock is based on the stock price on the grant date. The following table summarizes the activity for nonvested restricted shares during the nine months ended December 31, 2023: Number of Shares Weighted-Average Grant Date Fair Value Nonvested Restricted Stock at March 31, 2023 219,084 $ 96.54 Granted 97,257 $ 169.62 Vested ( 35,958 ) $ 146.24 Forfeited ( 3,000 ) $ 139.03 Nonvested Restricted Stock at December 31, 2023 277,383 $ 125.10 Expense related to restricted shares was approximately $ 4.0 million and $ 13.8 million for the three and nine months ended December 31, 2023, respectively, and $ 3.3 million and $ 11.0 million for the three and nine months ended December 31, 2022, respectively. At December 31, 2023, there was approximately $ 21.5 million of unearned compensation from restricted stock, which will be recognized over a weighted-average period of 1.7 years. The number of shares available for future grants of stock options, restricted stock units, stock appreciation rights, and restricted stock under the 2023 Plan was 1,411,804 at December 31, 2023.

COMPUTATION OF EARNINGS PER SHA

COMPUTATION OF EARNINGS PER SHARE	9 Months Ended
COMPUTATION OF EARNINGS PER SHARE	Dec. 31, 2023
Earnings Per Share [Abstract]
COMPUTATION OF EARNINGS PER SHARE	(J) COMPUTATION OF EARNINGS PER SHARE The calculation of basic and diluted common shares outstanding is as follows: For the Three Months Ended December 31, For the Nine Months Ended December 31, 2023 2022 2023 2022 Weighted-Average Shares of Common Stock Outstanding 34,466,141 36,336,056 34,931,378 37,149,927 Effect of Dilutive Shares Assumed Exercise of Outstanding Dilutive Options 305,842 424,949 312,723 424,642 Less Shares Repurchased from Proceeds of Assumed Exercised Options ( 169,413 ) ( 294,478 ) ( 170,910 ) ( 305,741 ) Restricted Stock Units 147,151 139,455 128,467 126,758 Weighted-Average Common Stock and Dilutive Securities Outstanding 34,749,721 36,605,982 35,201,658 37,395,586 Shares Excluded Due to Anti-Dilution Effects 5,558 66,802 22,145 46,736

PENSION AND EMPLOYEE BENEFIT PL

PENSION AND EMPLOYEE BENEFIT PLANS	9 Months Ended
PENSION AND EMPLOYEE BENEFIT PLANS	Dec. 31, 2023
Retirement Benefits [Abstract]
PENSION AND EMPLOYEE BENEFIT PLANS	(K) PENSION AND EMPLOYEE BENEFIT PLANS We sponsor several single-employer defined benefit plans and defined contribution plans, which together cover substantially all our employees. Benefits paid under the single-employer defined benefit plans covering certain hourly employees were historically based on years of service and the employee’s qualifying compensation over the last few years of employment. Over the last several years, these plans have been frozen to new participants and new benefits, with the last plan becoming frozen during fiscal 2020. Our defined benefit plans are all fully funded, with plan assets exceeding the benefit obligation at March 31, 2023. Due to the frozen status and current funding of the single-employer pension plans, our expected pension expense for fiscal 2024 is less than $ 0.2 million.

INCOME TAXES

INCOME TAXES	9 Months Ended
INCOME TAXES	Dec. 31, 2023
Income Tax Disclosure [Abstract]
INCOME TAXES	(L) INCOME TAXES Income Taxes for the interim periods presented have been included in the accompanying financial statements on the basis of an estimated annual effective tax rate. In addition to the amount of tax resulting from applying the estimated annual effective tax rate to pre-tax income, we will include, when appropriate, certain items treated as discrete events to arrive at an estimated overall tax amount. The effective tax rate for the nine months ended December 31, 2023, was approximately 22 %, which was consistent with the effective tax rate for the nine months ended December 31, 2022. The effective tax rate was higher than the U.S. Statutory rate of 21 % mainly because of state income taxes, partially offset by a benefit recognized related to percentage depletion.

LONG-TERM DEBT

LONG-TERM DEBT	9 Months Ended
LONG-TERM DEBT	Dec. 31, 2023
Debt Disclosure [Abstract]
LONG-TERM DEBT	(M) LONG-TERM DEBT Long-term Debt at December 31, 2023 is as follows: December 31, March 31, 2023 2023 (dollars in thousands) Revolving Credit Facility $ 107,000 $ 157,000 2.500 % Senior Unsecured Notes Due 2031 750,000 750,000 Term Loan 185,000 192,500 Total Debt 1,042,000 1,099,500 Less: Current Portion of Long-term Debt ( 10,000 ) ( 10,000 ) Less: Unamortized Discounts and Debt Issuance Costs ( 9,518 ) ( 10,468 ) Long-term Debt $ 1,022,482 $ 1,079,032 Revolving Credit Facility We have an unsecured $ 750.0 million revolving credit facility (the Revolving Credit Facility). The Revolving Credit Facility includes a separate $ 200.0 million term loan facility (the Term Loan) and also provides the Company the option to increase the borrowing capacity by up to $ 375.0 million (for a total borrowing capacity of $ 1,125.0 million), provided the existing lenders, or new lenders, agree to such increase. The Revolving Credit Facility includes a $ 40.0 million letter of credit facility and a swingline loan sub-facility of $ 25.0 million, and expires on May 5, 2027. The Revolving Credit Facility contains customary covenants for an unsecured investment-grade facility, including covenants that restrict the Company’s and/or its subsidiaries’ ability to incur additional debt; encumber assets; merge with or transfer or sell assets to other persons; and enter into certain affiliate transactions. The Revolving Credit Facility also requires the Company to maintain at the end of each fiscal quarter a Leverage Ratio of 3.50 :1.00 or less and an Interest Coverage Ratio (both ratios, as defined in the Revolving Credit Facility) equal to or greater than 2.50 to 1.00 (collectively, the Financial Covenants). At the Company’s option, outstanding loans under the Revolving Credit Facility bear interest, at a variable rate equal to either (i) the adjusted term SOFR rate (secured overnight financing rate), plus 10 basis points, plus an agreed spread (ranging from 100 to 162.5 basis points, which is established based on the Company's credit rating); (ii) in respect of any Revolving Loans (until such time as the then-existing Benchmark (as defined in the Revolving Credit Facility) is replaced in accordance with the Revolving Credit Facility), the adjusted daily simple SOFR rate, plus 10 basis points, plus an agreed spread (ranging from 100 to 162.5 basis points, which is established based on the Company's credit rating) or (iii) an Alternate Base Rate (as defined in the Revolving Credit Facility), which is the highest of (a) the Prime Rate (as defined in the Revolving Credit Facility) in effect on any applicable day, (b) the NYFRB Rate (as defined in the Revolving Credit Facility) in effect on any applicable day, plus ½ of 1% , and (c) the Adjusted Term SOFR (as defined in the Revolving Credit Facility) for a one month interest period on any applicable day, or if such day is not a business day, the immediately preceding business day, plus 1.0%, in each case plus an agreed upon spread (ranging from 0 to 62.5 basis points), which is established quarterly based on the Company's credit rating. The Company is also required to pay a facility fee on unused available borrowings under the Revolving Credit Facility ranging from 9 to 22.5 basis points, which is established based on the Company's then credit rating. The Company pays each lender a participation fee with respect to such lender’s participations in letters of credit, which fee accrues at the same Applicable Rate (as defined in the Revolving Credit Facility) used to determine the interest rate applicable to Eurodollar Revolving Loans (as defined in the Revolving Credit Facility), plus a fronting fee for each letter of credit issued by the issuing bank in an amount equal to 12.5 basis points per annum on the daily maximum amount then available to be drawn under such letter of credit. The Company also pays each issuing bank such bank’s standard fees with respect to issuance, amendment or extensions of letters of credit and other processing fees, and other standard costs and charges relating to such issuing bank’s letters of credit from time to time. There were $ 107.0 million of outstanding borrowings under the Revolving Credit Facility, plus $ 8.3 million outstanding letters of credit as of December 31, 2023, resulting in $ 634.7 million of available borrowings under the Revolving Credit Facility, net of the outstanding letters of credit. We were in compliance with all Financial Covenants on December 31, 2023; therefore, the entire $ 634.7 million is available for future borrowings. Term Loan On May 5, 2022, we borrowed the $ 200.0 million Term Loan under the Revolving Credit Facility, and used these proceeds to, among other things, pay down a portion of the Revolving Credit Facility. The Term Loan requires quarterly principal payments of $ 2.5 million, with any unpaid amounts due upon maturity on May 5, 2027 . At the Company’s option, principal amounts outstanding under the Term Loan bear interest as set forth in the Revolving Credit Facility (but not, for the avoidance of doubt, at a daily simple SOFR rate unless and until such time as the then-existing Benchmark (as defined in the Revolving Credit Facility) is replaced in accordance with the Revolving Credit Facility). 2.500% Senior Unsecured Notes Due 2031 On July 1, 2021, we issued $ 750.0 million aggregate principal amount of 2.500% senior notes due July 2031 (the 2.500 % Senior Unsecured Notes). The 2.500% Senior Unsecured Notes are senior unsecured obligations of the Company and are not guaranteed by any of our subsidiaries. The 2.500% Senior Unsecured Notes were issued net of original issue discount of $ 6.3 million and have an effective interest rate of approximately 2.6 %. The original issue discount is being amortized by the effective interest method over the 10-year term of the notes. The 2.500% Senior Unsecured Notes are redeemable prior to April 1, 2031, at a redemption price equal to 100 % of the aggregate principal amount of the 2.500% Senior Unsecured Notes being redeemed, plus the present value of remaining scheduled payments of principal and interest from the applicable redemption date to April 1, 2031, discounted to the redemption date on a semi-annual basis at the Treasury rate plus 20 basis points. The 2.500% Senior Unsecured Notes are redeemable on or after April 1, 2031, at a redemption price equal to 100 % of the aggregate principal amount of the 2.500 % Senior Unsecured Notes being redeemed, plus accrued and unpaid interest to, but excluding, the applicable redemption date. If we experience certain change of control triggering events, we would be required to offer to repurchase the 2.500% Senior Unsecured Notes at a purchase price equal to 101 % of the aggregate principal amount of the 2.500% Senior Unsecured Notes being repurchased, plus accrued and unpaid interest to, but excluding, the applicable redemption date. The indenture governing the 2.500% Senior Unsecured Notes contains certain covenants that limit our ability to create or permit to exist certain liens; enter into sale and leaseback transactions; and consolidate, merge, or transfer all or substantially all of our assets, and provides for certain events of default that, if any occurred, would permit or require the principal of and accrued interest on the 2.500% Senior Unsecured Notes to become or be declared due and payable.

SEGMENT INFORMATION

SEGMENT INFORMATION	9 Months Ended
SEGMENT INFORMATION	Dec. 31, 2023
Segment Reporting [Abstract]
SEGMENT INFORMATION	(N) SEGMENT INFORMATION Operating segments are defined as components of an enterprise that engage in business activities that earn revenue, incur expenses, and prepare separate financial information that is evaluated regularly by our chief operating decision maker in order to allocate resources and assess performance. Our business is organized into two sectors within which there are four reportable business segments. The Heavy Materials sector includes the Cement and Concrete and Aggregates segments. The Light Materials sector includes the Gypsum Wallboard and Recycled Paperboard segments. Our primary products are commodities that are essential in commercial and residential construction; public construction projects; and projects to build, expand, and repair roads and highways. Demand for our products is generally cyclical and seasonal, depending on economic and geographic conditions. We distribute our products throughout most of the United States, except the Northeast, which provides us with regional economic diversification. Our operations are conducted in the U.S. and include the mining of limestone for the manufacture, production, distribution, and sale of portland cement, including portland limestone cement (a basic construction material that is the essential binding ingredient in concrete); the grinding and sale of slag; the mining of gypsum for the manufacture and sale of gypsum wallboard; the manufacture and sale of recycled paperboard to the gypsum wallboard industry and other paperboard converters; the sale of readymix concrete; and the mining and sale of aggregates (crushed stone, sand, and gravel). We operate eight modern cement plants (one of which is operated through a joint venture located in Buda, Texas), one slag grinding facility, and over 30 cement distribution terminals. Our cement companies focus on the U.S. heartland and operate as an integrated network selling product primarily in California, Colorado, Illinois, Indiana, Iowa, Kansas, Kentucky, Missouri, Nebraska, Nevada, Ohio, Oklahoma, Tennessee, and Texas. We operate over 25 readymix concrete batch plants and five aggregates processing plants in markets that are complementary to our cement network. We operate five gypsum wallboard plants and a recycled paperboard mill. We distribute gypsum wallboard and recycled paperboard throughout the continental U.S., with the exception of the Northeast. We account for intersegment sales at market prices. For segment reporting purposes only, we proportionately consolidate our 50 % share of the Joint Venture Revenue and Operating Earnings, consistent with the way management reports the segments within the Company for making operating decisions and assessing performance. The following table sets forth certain financial information relating to our operations by segment. We do not allocate interest or taxes at the segment level; these costs are disclosed at the consolidated company level. For the Three Months Ended December 31, For the Nine Months Ended December 31, 2023 2022 2023 2022 (dollars in thousands) Revenue Cement $ 308,654 $ 256,313 $ 998,437 $ 860,289 Concrete and Aggregates 61,186 55,176 201,526 186,407 Gypsum Wallboard 200,969 212,016 629,299 652,981 Recycled Paperboard 47,053 47,774 135,397 155,520 617,862 571,279 1,964,659 1,855,197 Less: Intersegment Revenue ( 32,346 ) ( 32,172 ) ( 99,356 ) ( 98,190 ) Less: Joint Venture Revenue ( 26,683 ) ( 27,620 ) ( 82,713 ) ( 79,065 ) $ 558,833 $ 511,487 $ 1,782,590 $ 1,677,942 For the Three Months Ended December 31, For the Nine Months Ended December 31, 2023 2022 2023 2022 (dollars in thousands) Intersegment Revenue Cement $ 7,804 $ 7,719 $ 27,192 $ 26,371 Concrete and Aggregates 3,414 — 10,235 — Recycled Paperboard 21,128 24,453 61,929 71,819 $ 32,346 $ 32,172 $ 99,356 $ 98,190 Cement Sales Volume (M tons) Wholly Owned 1,663 1,527 5,470 5,313 Joint Venture 161 172 496 524 1,824 1,699 5,966 5,837 For the Three Months Ended December 31, For the Nine Months Ended December 31, 2023 2022 2023 2022 (dollars in thousands) (dollars in thousands) Operating Earnings Cement $ 105,566 $ 72,315 $ 301,056 $ 233,442 Concrete and Aggregates 1,760 2,692 13,434 15,700 Gypsum Wallboard 75,063 87,335 251,625 261,164 Recycled Paperboard 7,524 7,805 22,316 17,200 Sub-Total 189,913 170,147 588,431 527,506 Corporate General and Administrative Expense ( 14,201 ) ( 12,497 ) ( 42,456 ) ( 37,944 ) Other Non-Operating Income (Loss) 1,019 2,210 2,837 911 Earnings Before Interest and Income Taxes 176,731 159,860 548,812 490,473 Interest Expense, net ( 10,128 ) ( 8,932 ) ( 32,571 ) ( 24,842 ) Earnings Before Income Taxes $ 166,603 $ 150,928 $ 516,241 $ 465,631 Cement Operating Earnings Wholly Owned $ 96,281 $ 60,938 $ 278,266 $ 209,811 Joint Venture 9,285 11,377 22,790 23,631 $ 105,566 $ 72,315 $ 301,056 $ 233,442 Capital Expenditures Cement $ 11,571 $ 7,278 $ 38,288 $ 21,157 Concrete and Aggregates 1,207 2,128 10,281 16,468 Gypsum Wallboard 7,386 7,307 23,866 19,777 Recycled Paperboard 1,868 463 7,733 2,318 Corporate and Other 403 526 7,680 1,231 $ 22,435 $ 17,702 $ 87,848 $ 60,951 Depreciation, Depletion, and Amortization Cement $ 22,514 $ 20,582 $ 66,380 $ 60,893 Concrete and Aggregates 4,857 4,402 14,850 12,954 Gypsum Wallboard 5,611 5,387 16,620 16,539 Recycled Paperboard 3,694 3,738 11,121 11,197 Corporate and Other 792 706 2,376 2,106 $ 37,468 $ 34,815 $ 111,347 $ 103,689 December 31, March 31, 2023 2023 (dollars in thousands) Identifiable Assets Cement $ 1,997,649 $ 1,905,227 Concrete and Aggregates 229,998 234,767 Gypsum Wallboard 412,092 421,425 Recycled Paperboard 168,120 163,797 Other, net 82,481 55,786 $ 2,890,340 $ 2,781,002 Segment Operating Earnings, including the proportionately consolidated 50% interest in the revenue and expenses of the Joint Venture, represent Revenue, less direct operating expenses, segment Depreciation, and segment Selling, General, and Administrative expenses. We account for intersegment sales at market prices. Corporate assets consist mainly of cash and cash equivalents, general office assets, and miscellaneous other assets. The basis used to disclose Identifiable Assets; Capital Expenditures; and Depreciation, Depletion, and Amortization conforms with the equity method, and is similar to how we disclose these accounts in our Unaudited Consolidated Balance Sheets and Unaudited Consolidated Statements of Earnings. The segment breakdown of Goodwill is as follows: December 31, March 31, 2023 2023 (dollars in thousands) Cement $ 227,669 $ 215,781 Concrete and Aggregates 40,774 40,774 Gypsum Wallboard 116,618 116,618 Recycled Paperboard 7,538 7,538 $ 392,599 $ 380,711 The increase in Goodwill in the Cement segment is related to the Stockton Terminal Acquisition. The purchase price allocation is still in progress, and may affect the recorded balance of Goodwill when completed. Summarized financial information for the Joint Venture that is not consolidated is set out below. This summarized financial information includes the total amount for the Joint Venture and not our 50% interest in those amounts: For the Three Months Ended December 31, For the Nine Months Ended December 31, 2023 2022 2023 2022 (dollars in thousands) (dollars in thousands) Revenue $ 53,366 $ 55,240 $ 165,426 $ 158,129 Gross Margin $ 19,465 $ 24,716 $ 51,512 $ 52,718 Earnings Before Income Taxes $ 18,711 $ 22,754 $ 45,925 $ 47,262 December 31, March 31, 2023 2023 (dollars in thousands) Current Assets $ 104,158 $ 88,562 Noncurrent Assets $ 150,950 $ 124,503 Current Liabilities $ 40,621 $ 29,434

INTEREST EXPENSE

INTEREST EXPENSE	9 Months Ended
INTEREST EXPENSE	Dec. 31, 2023
Banking and Thrift, Interest [Abstract]
INTEREST EXPENSE	(O) INTEREST EXPENSE The following components are included in Interest Expense, net: For the Three Months Ended December 31, For the Nine Months Ended December 31, 2023 2022 2023 2022 (dollars in thousands) (dollars in thousands) Interest Income $ ( 150 ) $ ( 163 ) $ ( 523 ) $ ( 245 ) Interest Expense 9,804 8,621 31,671 23,676 Other Expenses 474 474 1,423 1,411 Interest Expense, net $ 10,128 $ 8,932 $ 32,571 $ 24,842 Interest Income includes interest earned on investments of excess cash. Components of Interest Expense include interest associated with the Revolving Credit Facility, Term Loan, Senior Unsecured Notes, and commitment fees based on the unused portion of the Revolving Credit Facility. Other Expenses include amortization of debt issuance costs and Revolving Credit Facility costs.

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	9 Months Ended
COMMITMENTS AND CONTINGENCIES	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	(P) COMMITMENTS AND CONTINGENCIES We have certain deductible limits under our workers’ compensation and liability insurance policies for which reserves are established based on the undiscounted estimated costs of known and anticipated claims. We have entered into standby letter of credit agreements relating to workers’ compensation, auto, and general liability self-insurance. At December 31, 2023, we had contingent liabilities under these outstanding letters of credit of approximately $ 8.3 million. In the ordinary course of business, we execute contracts involving indemnifications that are both standard in the industry and specific to a transaction, such as the sale of a business. These indemnifications may include claims relating to any of the following: environmental and tax matters; intellectual property rights; governmental regulations and employment-related matters; customer, supplier, and other commercial contractual relationships; and construction contracts and financial matters. While the maximum amount to which the Company may be exposed under such agreements cannot be estimated, management believes these indemnifications will not have a material adverse effect on our consolidated financial position, results of operations, or cash flows. We currently have no outstanding guarantees. We are currently contingently liable for performance under $ 29.3 million in performance bonds required by certain states and municipalities, and their related agencies. The bonds are principally for certain reclamation obligations and mining permits. We have indemnified the underwriting insurance company against any exposure under the performance bonds. In our experience, no material claims have been made against these financial instruments.

FAIR VALUE OF FINANCIAL INSTRUM

FAIR VALUE OF FINANCIAL INSTRUMENTS	9 Months Ended
FAIR VALUE OF FINANCIAL INSTRUMENTS	Dec. 31, 2023
Fair Value Disclosures [Abstract]
FAIR VALUE OF FINANCIAL INSTRUMENTS	(Q) FAIR VALUE OF FINANCIAL INSTRUMENTS The fair value of our long-term debt has been determined using market transactions (Level 1 inputs). The fair value of our 2.500% Senior Unsecured Notes at December 31, 2023, is as follows: Fair Value (dollars in thousands) 2.500 % Senior Unsecured Notes Due 2031 $ 631,000 The carrying values of Cash and Cash Equivalents, Accounts Receivable, Accounts Payable, and Accrued Liabilities approximate their fair values at December 31, 2023, due to the short-term maturities of these assets and liabilities. The fair value of our Revolving Credit Facility and Term Loan also approximates the carrying value at December 31, 2023.

BASIS OF PRESENTATION (Policies

BASIS OF PRESENTATION (Policies)	9 Months Ended
BASIS OF PRESENTATION (Policies)	Dec. 31, 2023
Accounting Policies [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements There have been no recent accounting pronouncements that are expected to materially affect the Company.

SUPPLEMENTAL CASH FLOW INFORM_2

SUPPLEMENTAL CASH FLOW INFORMATION (Tables)	9 Months Ended
SUPPLEMENTAL CASH FLOW INFORMATION (Tables)	Dec. 31, 2023
Supplemental Cash Flow Elements [Abstract]
Supplemental Cash Flow Information	Supplemental cash flow information is as follows: For the Nine Months Ended December 31, 2023 2022 (dollars in thousands) Cash Payments Interest $ 38,797 $ 26,526 Income Taxes 92,718 94,793 Operating Cash Flows Used for Operating Leases 7,016 6,360 Non-Cash Financing Activities Excise Tax on Share Repurchases $ 3,227 $ — Right-of-Use Assets Acquired for Capitalized Operating Leases 6,018 —

ACQUISITION (Tables)

ACQUISITION (Tables)	9 Months Ended
ACQUISITION (Tables)	Dec. 31, 2023
Business Combinations [Abstract]
Schedule of Recognized Fair Value of Identified Assets Acquired and Liabilities Assumed	The following table summarizes the allocation of the purchase price to the fair value of assets acquired and liabilities assumed (based on Level 3 inputs) as of December 31, 2023: Fair Value Inventory $ 14,809 Prepaid and Other Current Assets 179 Property, Plant, and Equipment 12,737 Lease Right-of-Use Assets 1,646 Intangible Assets 16,100 Lease Obligations ( 1,646 ) Other Long-term Liabilities ( 630 ) Goodwill 11,858 Total Purchase Price $ 55,053
Schedule of Revenue and Operating Earnings Related to Business Acquisition	The following table presents the Revenue and Operating Loss related to the Stockton Terminal Acquisition that has been included in our Consolidated Statement of Earnings from May 3, 2023, through December 31, 2023. For the Three Months Ended For the Nine Months Ended December 31, 2023 (dollars in thousands) Revenue $ 11,247 $ 32,529 Operating Loss $ ( 56 ) $ ( 2,106 )

INVENTORIES (Tables)

INVENTORIES (Tables)	9 Months Ended
INVENTORIES (Tables)	Dec. 31, 2023
Inventory Disclosure [Abstract]
Schedule of Inventories	Inventories consist of the following: December 31, March 31, 2023 2023 (dollars in thousands) Raw Materials and Materials-in-Progress $ 104,465 $ 96,880 Finished Cement 55,480 46,364 Aggregates 10,580 8,309 Gypsum Wallboard 7,183 4,244 Recycled Paperboard 13,471 8,651 Repair Parts and Supplies 123,555 112,885 Fuel and Coal 19,094 14,549 $ 333,828 $ 291,882

ACCRUED EXPENSES (Tables)

ACCRUED EXPENSES (Tables)	9 Months Ended
ACCRUED EXPENSES (Tables)	Dec. 31, 2023
Payables and Accruals [Abstract]
Schedule of Accrued Expenses	Accrued Expenses consist of the following: December 31, March 31, 2023 2023 (dollars in thousands) Payroll and Incentive Compensation $ 39,703 $ 32,742 Benefits 17,073 16,130 Dividends 8,793 9,186 Interest 1,297 7,163 Property Taxes 5,817 6,671 Power and Fuel 3,479 3,051 Freight 4,643 1,663 Legal and Professional 2,083 1,691 Sales and Use Tax 1,160 1,452 Other 4,130 6,723 $ 88,178 $ 86,472

LEASES (Tables)

LEASES (Tables)	9 Months Ended
LEASES (Tables)	Dec. 31, 2023
Leases [Abstract]
Schedule of Lease Expense for Operating and Short-Term Leases	Lease expense for our operating and short-term leases is as follows: For the Three Months Ended December 31, For the Nine Months Ended December 31, 2023 2022 2023 2022 (dollars in thousands) Operating Lease Cost $ 1,921 $ 1,953 $ 6,148 $ 5,351 Short-term Lease Cost 187 135 601 410 Total Lease Cost $ 2,108 $ 2,088 $ 6,749 $ 5,761
Schedule of Balance Sheet Information Related to Leases	The Right-of-Use Assets and Lease Liabilities are reflected on our Balance Sheet as follows: December 31, March 31, 2023 2023 (dollars in thousands) Operating Leases Operating Lease Right-of-Use Assets $ 20,670 $ 20,759 Current Operating Lease Liabilities $ 8,217 $ 6,009 Noncurrent Operating Lease Liabilities 20,685 24,940 Total Operating Lease Liabilities $ 28,902 $ 30,949
Schedule of Future Payments for Operating Leases	Future payments for operating leases are as follows (dollars in thousands): Fiscal Year Amount 2024 (remaining three months) $ 2,269 2025 8,653 2026 4,776 2027 3,606 2028 2,735 Thereafter 13,664 Total Lease Payments $ 35,703 Less: Imputed Interest ( 6,801 ) Present Value of Lease Liabilities $ 28,902 Weighted-Average Remaining Lease Term (in years) 9.3 Weighted-Average Discount Rate 4.17 %

SHARE-BASED EMPLOYEE COMPENSA_2

SHARE-BASED EMPLOYEE COMPENSATION (Tables)	9 Months Ended
SHARE-BASED EMPLOYEE COMPENSATION (Tables)	Dec. 31, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Period and vesting of performance shares	The stock option performance periods are as follows: Options Performance Period Vesting Date One-Year Performance Shares 574 April 1, 2023 to March 31, 2024 May 2024 Two-Year Performance Shares 574 April 1, 2023 to March 31, 2025 May 2025 Three-Year Performance Shares 1,148 April 1, 2023 to March 31, 2026 May 2026
Weighted-Average Assumptions Used to Value Option Awards	The weighted-average assumptions used in the Black-Scholes model to value the option awards for fiscal 2024 are as follows: Dividend Yield 0.8 % Expected Volatility 38.8 % Risk-Free Interest Rate 3.7 % Expected Life 6.0 years
Stock Option Activity	The following table represents stock option activity for the nine months ended December 31, 2023: Number Weighted- Outstanding Options at March 31, 2023 436,949 $ 89.69 Granted 5,558 $ 172.62 Exercised ( 131,099 ) $ 88.17 Cancelled ( 1,000 ) $ 73.37 Outstanding Options at December 31, 2023 310,408 $ 91.86 Options Exercisable at December 31, 2023 215,822 Weighted-Average Fair Value of Options Granted $ 69.84
Stock Options Outstanding	The following table summarizes information about stock options outstanding at December 31, 2023: Options Outstanding Options Exercisable Range of Exercise Prices Number of Weighted- Weighted- Number of Weighted- $ 59.32 - $ 81.28 113,490 5.91 $ 62.49 71,086 $ 63.67 $ 87.37 - $ 106.24 125,721 4.60 $ 95.77 122,005 $ 95.72 $ 118.27 - $ 166.75 71,197 8.34 $ 131.77 22,731 $ 130.79 310,408 5.94 $ 91.86 215,822 $ 88.86
Summary of Activity for Nonvested Restricted Shares	The following table summarizes the activity for nonvested restricted shares during the nine months ended December 31, 2023: Number of Shares Weighted-Average Grant Date Fair Value Nonvested Restricted Stock at March 31, 2023 219,084 $ 96.54 Granted 97,257 $ 169.62 Vested ( 35,958 ) $ 146.24 Forfeited ( 3,000 ) $ 139.03 Nonvested Restricted Stock at December 31, 2023 277,383 $ 125.10
Performance Vesting Restricted Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Period and vesting of performance shares	The restricted share performance periods are as follows: Shares Performance Period Vesting Date One-Year Performance Shares 11,424 April 1, 2023 to March 31, 2024 May 2024 Two-Year Performance Shares 11,424 April 1, 2023 to March 31, 2025 May 2025 Three-Year Performance Shares 22,845 April 1, 2023 to March 31, 2026 May 2026

COMPUTATION OF EARNINGS PER S_2

COMPUTATION OF EARNINGS PER SHARE (Tables)	9 Months Ended
COMPUTATION OF EARNINGS PER SHARE (Tables)	Dec. 31, 2023
Earnings Per Share [Abstract]
Calculation of Basic and Diluted Common Shares Outstanding	The calculation of basic and diluted common shares outstanding is as follows: For the Three Months Ended December 31, For the Nine Months Ended December 31, 2023 2022 2023 2022 Weighted-Average Shares of Common Stock Outstanding 34,466,141 36,336,056 34,931,378 37,149,927 Effect of Dilutive Shares Assumed Exercise of Outstanding Dilutive Options 305,842 424,949 312,723 424,642 Less Shares Repurchased from Proceeds of Assumed Exercised Options ( 169,413 ) ( 294,478 ) ( 170,910 ) ( 305,741 ) Restricted Stock Units 147,151 139,455 128,467 126,758 Weighted-Average Common Stock and Dilutive Securities Outstanding 34,749,721 36,605,982 35,201,658 37,395,586 Shares Excluded Due to Anti-Dilution Effects 5,558 66,802 22,145 46,736

LONG-TERM DEBT (Tables)

LONG-TERM DEBT (Tables)	9 Months Ended
LONG-TERM DEBT (Tables)	Dec. 31, 2023
Debt Instrument [Line Items]
Long-Term Debt	Long-term Debt at December 31, 2023 is as follows: December 31, March 31, 2023 2023 (dollars in thousands) Revolving Credit Facility $ 107,000 $ 157,000 2.500 % Senior Unsecured Notes Due 2031 750,000 750,000 Term Loan 185,000 192,500 Total Debt 1,042,000 1,099,500 Less: Current Portion of Long-term Debt ( 10,000 ) ( 10,000 ) Less: Unamortized Discounts and Debt Issuance Costs ( 9,518 ) ( 10,468 ) Long-term Debt $ 1,022,482 $ 1,079,032

SEGMENT INFORMATION (Tables)

SEGMENT INFORMATION (Tables)	9 Months Ended
SEGMENT INFORMATION (Tables)	Dec. 31, 2023
Segment Reporting [Abstract]
Financial Information Related to Operations by Segment	The following table sets forth certain financial information relating to our operations by segment. We do not allocate interest or taxes at the segment level; these costs are disclosed at the consolidated company level. For the Three Months Ended December 31, For the Nine Months Ended December 31, 2023 2022 2023 2022 (dollars in thousands) Revenue Cement $ 308,654 $ 256,313 $ 998,437 $ 860,289 Concrete and Aggregates 61,186 55,176 201,526 186,407 Gypsum Wallboard 200,969 212,016 629,299 652,981 Recycled Paperboard 47,053 47,774 135,397 155,520 617,862 571,279 1,964,659 1,855,197 Less: Intersegment Revenue ( 32,346 ) ( 32,172 ) ( 99,356 ) ( 98,190 ) Less: Joint Venture Revenue ( 26,683 ) ( 27,620 ) ( 82,713 ) ( 79,065 ) $ 558,833 $ 511,487 $ 1,782,590 $ 1,677,942 For the Three Months Ended December 31, For the Nine Months Ended December 31, 2023 2022 2023 2022 (dollars in thousands) Intersegment Revenue Cement $ 7,804 $ 7,719 $ 27,192 $ 26,371 Concrete and Aggregates 3,414 — 10,235 — Recycled Paperboard 21,128 24,453 61,929 71,819 $ 32,346 $ 32,172 $ 99,356 $ 98,190 Cement Sales Volume (M tons) Wholly Owned 1,663 1,527 5,470 5,313 Joint Venture 161 172 496 524 1,824 1,699 5,966 5,837 For the Three Months Ended December 31, For the Nine Months Ended December 31, 2023 2022 2023 2022 (dollars in thousands) (dollars in thousands) Operating Earnings Cement $ 105,566 $ 72,315 $ 301,056 $ 233,442 Concrete and Aggregates 1,760 2,692 13,434 15,700 Gypsum Wallboard 75,063 87,335 251,625 261,164 Recycled Paperboard 7,524 7,805 22,316 17,200 Sub-Total 189,913 170,147 588,431 527,506 Corporate General and Administrative Expense ( 14,201 ) ( 12,497 ) ( 42,456 ) ( 37,944 ) Other Non-Operating Income (Loss) 1,019 2,210 2,837 911 Earnings Before Interest and Income Taxes 176,731 159,860 548,812 490,473 Interest Expense, net ( 10,128 ) ( 8,932 ) ( 32,571 ) ( 24,842 ) Earnings Before Income Taxes $ 166,603 $ 150,928 $ 516,241 $ 465,631 Cement Operating Earnings Wholly Owned $ 96,281 $ 60,938 $ 278,266 $ 209,811 Joint Venture 9,285 11,377 22,790 23,631 $ 105,566 $ 72,315 $ 301,056 $ 233,442 Capital Expenditures Cement $ 11,571 $ 7,278 $ 38,288 $ 21,157 Concrete and Aggregates 1,207 2,128 10,281 16,468 Gypsum Wallboard 7,386 7,307 23,866 19,777 Recycled Paperboard 1,868 463 7,733 2,318 Corporate and Other 403 526 7,680 1,231 $ 22,435 $ 17,702 $ 87,848 $ 60,951 Depreciation, Depletion, and Amortization Cement $ 22,514 $ 20,582 $ 66,380 $ 60,893 Concrete and Aggregates 4,857 4,402 14,850 12,954 Gypsum Wallboard 5,611 5,387 16,620 16,539 Recycled Paperboard 3,694 3,738 11,121 11,197 Corporate and Other 792 706 2,376 2,106 $ 37,468 $ 34,815 $ 111,347 $ 103,689 December 31, March 31, 2023 2023 (dollars in thousands) Identifiable Assets Cement $ 1,997,649 $ 1,905,227 Concrete and Aggregates 229,998 234,767 Gypsum Wallboard 412,092 421,425 Recycled Paperboard 168,120 163,797 Other, net 82,481 55,786 $ 2,890,340 $ 2,781,002
Segment Breakdown of Goodwill	The segment breakdown of Goodwill is as follows: December 31, March 31, 2023 2023 (dollars in thousands) Cement $ 227,669 $ 215,781 Concrete and Aggregates 40,774 40,774 Gypsum Wallboard 116,618 116,618 Recycled Paperboard 7,538 7,538 $ 392,599 $ 380,711
Summarized Financial Information for Joint Venture Unconsolidated	Summarized financial information for the Joint Venture that is not consolidated is set out below. This summarized financial information includes the total amount for the Joint Venture and not our 50% interest in those amounts: For the Three Months Ended December 31, For the Nine Months Ended December 31, 2023 2022 2023 2022 (dollars in thousands) (dollars in thousands) Revenue $ 53,366 $ 55,240 $ 165,426 $ 158,129 Gross Margin $ 19,465 $ 24,716 $ 51,512 $ 52,718 Earnings Before Income Taxes $ 18,711 $ 22,754 $ 45,925 $ 47,262 December 31, March 31, 2023 2023 (dollars in thousands) Current Assets $ 104,158 $ 88,562 Noncurrent Assets $ 150,950 $ 124,503 Current Liabilities $ 40,621 $ 29,434

INTEREST EXPENSE (Tables)

INTEREST EXPENSE (Tables)	9 Months Ended
INTEREST EXPENSE (Tables)	Dec. 31, 2023
Banking and Thrift, Interest [Abstract]
Interest Expense, Net	The following components are included in Interest Expense, net: For the Three Months Ended December 31, For the Nine Months Ended December 31, 2023 2022 2023 2022 (dollars in thousands) (dollars in thousands) Interest Income $ ( 150 ) $ ( 163 ) $ ( 523 ) $ ( 245 ) Interest Expense 9,804 8,621 31,671 23,676 Other Expenses 474 474 1,423 1,411 Interest Expense, net $ 10,128 $ 8,932 $ 32,571 $ 24,842

FAIR VALUE OF FINANCIAL INSTR_2

FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)	9 Months Ended
FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)	Dec. 31, 2023
Fair Value Disclosures [Abstract]
Fair Value of Senior Notes	The fair value of our long-term debt has been determined using market transactions (Level 1 inputs). The fair value of our 2.500% Senior Unsecured Notes at December 31, 2023, is as follows: Fair Value (dollars in thousands) 2.500 % Senior Unsecured Notes Due 2031 $ 631,000

Supplemental Cash Flow Inform_3

Supplemental Cash Flow Information (Detail) - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Cash Payments
Interest	$ 38,797	$ 26,526
Income Taxes	92,718	94,793
Operating Cash Flows Used for Operating Leases	7,016	6,360
Noncash Financing Activities
Excise Tax on Share Repurchases	3,227	0
Right-of-Use Assets Acquired for Capitalized Operating Leases	$ 6,018	$ 0

Acquisition - Additional Inform

Acquisition - Additional Information (Detail) - USD ($) $ in Thousands		3 Months Ended	9 Months Ended
	May 03, 2023	Dec. 31, 2023	Dec. 31, 2023	Dec. 31, 2022
Business Acquisition [Line Items]
Purchase price of separate operating segment			$ 55,053	$ 158,451
Stockton Terminal Acquisition [Member]
Business Acquisition [Line Items]
Purchase price of separate operating segment	$ 55,100
Depreciation		$ 700	1,900
Amortization			$ 3,900
Stockton Terminal Acquisition [Member] \| Minimum [Member]
Business Acquisition [Line Items]
Property, plant and equipment, estimated useful life		5 years	5 years
Acquired intangible assets estimated useful life			2 years
Stockton Terminal Acquisition [Member] \| Maximum [Member]
Business Acquisition [Line Items]
Property, plant and equipment, estimated useful life		30 years	30 years
Acquired intangible assets estimated useful life			15 years

Acquisition - Schedule of Recog

Acquisition - Schedule of Recognized Fair Value of Identified Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Mar. 31, 2023
Business Acquisition [Line Items]
Goodwill	$ 392,599	$ 380,711
Stockton Terminal Acquisition [Member] \| Level 3 Inputs [Member]
Business Acquisition [Line Items]
Inventory	14,809
Prepaid and Other Current Assets	179
Property, Plant, and Equipment	12,737
Lease Right-of-Use Assets	1,646
Intangible Assets	16,100
Lease Obligations	(1,646)
Other Long-term Liabilities	(630)
Goodwill	11,858
Total Purchase Price	$ 55,053

Acquisition - Schedule of Reven

Acquisition - Schedule of Revenue and Operating Earnings Related to Business Acquisition (Detail) - Stockton Terminal Acquisition [Member] - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Dec. 31, 2023	Dec. 31, 2023
Business Acquisition [Line Items]
Revenue	$ 11,247	$ 32,529
Operating Loss	$ (56)	$ (2,106)

Revenue - Additional Informatio

Revenue - Additional Information (Detail)	9 Months Ended
Revenue - Additional Information (Detail)	Dec. 31, 2023	Sep. 30, 2023
Minimum [Member]
Supply Commitment [Line Items]
Revenue from contract with customer collection terms	30 days
Long term supply agreements term of termination notice period	2 years
Maximum [Member]
Supply Commitment [Line Items]
Revenue from contract with customer collection terms	75 days
Long term supply agreements term of termination notice period		3 years

Accounts and Notes Receivable -

Accounts and Notes Receivable - Additional Information (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Mar. 31, 2023
Receivables [Abstract]
Allowance for credit losses	$ 7	$ 6.9

Schedule of Inventories (Detail

Schedule of Inventories (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Mar. 31, 2023
Inventory [Line Items]
Inventories	$ 333,828	$ 291,882
Raw Materials and Material-in-Progress [Member]
Inventory [Line Items]
Inventories	104,465	96,880
Finished Cement [Member]
Inventory [Line Items]
Inventories	55,480	46,364
Aggregates [Member]
Inventory [Line Items]
Inventories	10,580	8,309
Gypsum Wallboard [Member]
Inventory [Line Items]
Inventories	7,183	4,244
Recycled Paperboard [Member]
Inventory [Line Items]
Inventories	13,471	8,651
Repair Parts and Supplies [Member]
Inventory [Line Items]
Inventories	123,555	112,885
Fuel and Coal [Member]
Inventory [Line Items]
Inventories	$ 19,094	$ 14,549

Schedule of Accrued Expenses (D

Schedule of Accrued Expenses (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Mar. 31, 2023
Accounts Payable and Accrued Liabilities, Current [Abstract]
Payroll and Incentive Compensation	$ 39,703	$ 32,742
Benefits	17,073	16,130
Dividends	8,793	9,186
Interest	1,297	7,163
Property Taxes	5,817	6,671
Power and Fuel	3,479	3,051
Freight	4,643	1,663
Legal and Professional	2,083	1,691
Sales and Use Tax	1,160	1,452
Other	4,130	6,723
Accrued Expenses, Total	$ 88,178	$ 86,472

Leases - Additional Information

Leases - Additional Information (Detail)	Dec. 31, 2023
Minimum [Member]
Lessee Lease Description [Line Items]
Operating lease term	1 year
Maximum [Member]
Lessee Lease Description [Line Items]
Operating lease term	20 years

Schedule of Lease Expense for O

Schedule of Lease Expense for Operating and Short-Term Leases (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Leases [Abstract]
Operating Lease Cost	$ 1,921	$ 1,953	$ 6,148	$ 5,351
Short-Term Lease Cost	187	135	601	410
Total Lease Cost	$ 2,108	$ 2,088	$ 6,749	$ 5,761

Schedule of Balance Sheet Infor

Schedule of Balance Sheet Information Related to Leases (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Mar. 31, 2023
Operating Leases
Operating Lease Right-of-Use Assets	$ 20,670	$ 20,759
Current Operating Lease Liabilities	8,217	6,009
Noncurrent Operating Lease Liabilities	20,685	24,940
Total Operating Lease Liabilities	$ 28,902	$ 30,949

Schedule of Future Payments for

Schedule of Future Payments for Operating Leases (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Mar. 31, 2023
Leases [Abstract]
2024 (remaining three months)	$ 2,269
2025	8,653
2026	4,776
2027	3,606
2028	2,735
Thereafter	13,664
Total Lease Payments	35,703
Less: Imputed Interest	(6,801)
Present Value of Lease Liabilities	$ 28,902	$ 30,949
Weighted-Average Remaining Lease Term (in years)	9 years 3 months 18 days
Weighted-Average Discount Rate	4.17%

Share-Based Employee Compensa_3

Share-Based Employee Compensation - Additional Information (Detail) - USD ($) $ in Millions		1 Months Ended			3 Months Ended		9 Months Ended
	Jul. 19, 2021	Aug. 31, 2023	May 31, 2023	May 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Aug. 03, 2023
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares available for future grant					1,411,804		1,411,804
Reserved future issuance									1,425,000
Stock option expense					$ 0.5	$ 0.8	$ 1.5	$ 2.7
Aggregate intrinsic value for outstanding options					34.4		34.4
Aggregate intrinsic value for exercisable options					24.6		24.6
Total intrinsic value of options exercised							10.6
Restricted stock or unit expense					4	$ 3.3	$ 13.8	$ 11
Options granted							5,558
Long Term Compensation Plan [Member] \| Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of average return on invested capital			10%
Long Term Compensation Plan [Member] \| Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of average return on invested capital			20%
Performance Vesting Stock Options [Member] \| Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of average return on invested capital							10%
Performance Vesting Stock Options [Member] \| Long Term Compensation Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares available for future grant			2,296
Percentage of average return on invested capital							20%
Reduced percentage of shares earned in stock options plan							66.70%
Stock based compensation plan, description							The performance criteria for the Fiscal 2024 Employee Performance Stock Option Award are based upon the achievement of certain levels of return on equity (as defined in the option agreements), ranging from 10.0% to 20.0%, for the performance periods described in the table below. All stock options in each performance period will be earned if the return on equity is 20.0% or greater. If the return on equity is less than 20% but at least 10% in any performance period, the amount of stock options earned in such period will be reduced proportionately using straight-line interpolation, such that approximately 66.7% of the amount of stock options granted will be earned if the return on equity is 10.0%. If the Company does not achieve a return on equity of at least 10.0% during any performance period, all stock option awards for that performance period will be forfeited.
Share-based compensation award expiration term			10 years
Performance Vesting Stock Options [Member] \| Long Term Compensation Plan [Member] \| Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of average return on invested capital			10%
Performance Vesting Stock Options [Member] \| Long Term Compensation Plan [Member] \| Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of average return on invested capital			20%
Time Vesting Stock Options [Member] \| Long Term Compensation Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares available for future grant			1,914
Share-based compensation vesting period			3 years
Employee Stock Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average period of recognition of unrecognized compensation cost							1 year 10 months 24 days
Unrecognized compensation cost					2.2		$ 2.2
Employee Stock Option \| Long Term Compensation Plan [Member] \| Board of Directors [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation award expiration term		10 years
Options granted		1,348
Performance Vesting Restricted Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares available for future grant				45,693
Percentage of average return on invested capital							20%
Stock based compensation plan, description							The performance criteria for the Fiscal 2024 Employee Restricted Stock Performance Award are based upon the achievement of certain levels of return on equity (as defined in the award agreement), ranging from 10.0% to 20.0%, for the performance periods described in the table below. All restricted shares in each performance period will be earned if the return on equity is 20.0% or greater. If the return on equity is less than 20% but at least 10% in any performance period, the amount of shares earned in such period will be reduced proportionately using straight-line interpolation, such that approximately 66.7% of the amount of shares issued will be earned if the return on equity is 10.0%. If the Company does not achieve a return on equity of at least 10.0% during any performance period, all awards for that performance period will be forfeited.
Reduced percentage of restricted shares							66.70%
Performance Vesting Restricted Stock [Member] \| Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of average return on invested capital			10%	10%			10%
Performance Vesting Restricted Stock [Member] \| Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of average return on invested capital			20%	20%
Time Vesting Restricted Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares available for future grant			38,072
Share-based compensation vesting period	3 years		3 years
Time Vesting Restricted Stock [Member] \| Board of Directors [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation vesting period			1 year
Share-based compensation award expiration term			1 year
Restricted Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average period of recognition of unrecognized compensation cost							1 year 8 months 12 days
Unrecognized compensation cost					$ 21.5		$ 21.5
Restricted Stock [Member] \| Board of Directors [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares available for future grant		10,755

Schedule Of Period And Vesting

Schedule Of Period And Vesting Of Performance Share (Detail) - shares	1 Months Ended	9 Months Ended
	May 31, 2023	Dec. 31, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of shares		1,411,804
Options granted		5,558
One-Year Performance Shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of shares	11,424
Vesting Date	2024-05
One-Year Performance Shares \| Minimum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Performance Period	Apr. 01, 2023
One-Year Performance Shares \| Maximum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Performance Period	Mar. 31, 2024
Two-Year Performance Shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of shares	11,424
Vesting Date	2025-05
Two-Year Performance Shares \| Minimum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Performance Period	Apr. 01, 2023
Two-Year Performance Shares \| Maximum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Performance Period	Mar. 31, 2025
Three-Year Performance Shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of shares	22,845
Vesting Date	2026-05
Three-Year Performance Shares \| Minimum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Performance Period	Apr. 01, 2023
Three-Year Performance Shares \| Maximum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Performance Period	Mar. 31, 2026
Long Term Compensation Plan [Member] \| One-Year Performance Shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Options granted	574
Vesting Date	2024-05
Long Term Compensation Plan [Member] \| One-Year Performance Shares \| Minimum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Performance Period	Apr. 01, 2023
Long Term Compensation Plan [Member] \| One-Year Performance Shares \| Maximum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Performance Period	Mar. 31, 2024
Long Term Compensation Plan [Member] \| Two-Year Performance Shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Options granted	574
Vesting Date	2025-05
Long Term Compensation Plan [Member] \| Two-Year Performance Shares \| Minimum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Performance Period	Apr. 01, 2023
Long Term Compensation Plan [Member] \| Two-Year Performance Shares \| Maximum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Performance Period	Mar. 31, 2025
Long Term Compensation Plan [Member] \| Three-Year Performance Shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Options granted	1,148
Vesting Date	2026-05
Long Term Compensation Plan [Member] \| Three-Year Performance Shares \| Minimum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Performance Period	Apr. 01, 2023
Long Term Compensation Plan [Member] \| Three-Year Performance Shares \| Maximum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Performance Period	Mar. 31, 2026

Weighted-Average Assumptions Us

Weighted-Average Assumptions Used to Value Option Awards (Detail) - Long Term Compensation Plan [Member] - Employee Stock Option	9 Months Ended
	Dec. 31, 2023
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Dividend Yield	0.80%
Expected Volatility	38.80%
Risk-Free Interest Rate	3.70%
Expected Life	6 years

Stock Option Activity (Detail)

Stock Option Activity (Detail)	9 Months Ended
Stock Option Activity (Detail)	Dec. 31, 2023 $ / shares shares
Share-Based Payment Arrangement [Abstract]
Number of Shares, Outstanding Options at March 31, 2023 \| shares	436,949
Number of Shares, Granted \| shares	5,558
Number of Shares, Exercised \| shares	(131,099)
Number of Shares, Cancelled \| shares	(1,000)
Number of Shares, Outstanding Options at December 31, 2023 \| shares	310,408
Number of Shares, Options Exercisable at December 31, 2023 \| shares	215,822
Weighted-Average Exercise Price, Outstanding Options at March 31, 2023 \| $ / shares	$ 89.69
Weighted-Average Exercise Price, Granted \| $ / shares	172.62
Weighted-Average Exercise Price, Exercised \| $ / shares	88.17
Weighted-Average Exercise Price, Cancelled \| $ / shares	73.37
Weighted-Average Exercise Price, Outstanding Options at December 31, 2023 \| $ / shares	91.86
Weighted Average Fair Value of Options Granted During the Year \| $ / shares	$ 69.84

Stock Options Outstanding (Deta

Stock Options Outstanding (Detail)	9 Months Ended
Stock Options Outstanding (Detail)	Dec. 31, 2023 $ / shares shares
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Options Outstanding, Number of Shares Outstanding \| shares	310,408
Options Outstanding, Weighted-Average Remaining Contractual Life (in years)	5 years 11 months 8 days
Options Outstanding, Weighted-Average Exercise Price	$ 91.86
Options Exercisable , Number of Shares Outstanding \| shares	215,822
Options Exercisable, Weighted-Average Exercise Price	$ 88.86
$59.32 - $81.28 [Member]
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Range	59.32
Range of Exercise Prices, Upper Range	$ 81.28
Options Outstanding, Number of Shares Outstanding \| shares	113,490
Options Outstanding, Weighted-Average Remaining Contractual Life (in years)	5 years 10 months 28 days
Options Outstanding, Weighted-Average Exercise Price	$ 62.49
Options Exercisable , Number of Shares Outstanding \| shares	71,086
Options Exercisable, Weighted-Average Exercise Price	$ 63.67
$87.37 - $106.24 [Member]
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Range	87.37
Range of Exercise Prices, Upper Range	$ 106.24
Options Outstanding, Number of Shares Outstanding \| shares	125,721
Options Outstanding, Weighted-Average Remaining Contractual Life (in years)	4 years 7 months 6 days
Options Outstanding, Weighted-Average Exercise Price	$ 95.77
Options Exercisable , Number of Shares Outstanding \| shares	122,005
Options Exercisable, Weighted-Average Exercise Price	$ 95.72
$118.27 - $166.75 [Member]
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Range	118.27
Range of Exercise Prices, Upper Range	$ 166.75
Options Outstanding, Number of Shares Outstanding \| shares	71,197
Options Outstanding, Weighted-Average Remaining Contractual Life (in years)	8 years 4 months 2 days
Options Outstanding, Weighted-Average Exercise Price	$ 131.77
Options Exercisable , Number of Shares Outstanding \| shares	22,731
Options Exercisable, Weighted-Average Exercise Price	$ 130.79

Summary of Activity for Nonvest

Summary of Activity for Nonvested Restricted Shares (Detail) - Restricted Stock [Member]	9 Months Ended
	Dec. 31, 2023 $ / shares shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Shares, Nonvested Restricted Stock March 31, 2023 \| shares	219,084
Number of Shares, Granted \| shares	97,257
Number of Shares, Vested \| shares	(35,958)
Number of Shares, Forfeited \| shares	(3,000)
Number of Shares, Nonvested Restricted Stock at December 31, 2023 \| shares	277,383
Weighted Average Grant Date Fair Value, Nonvested Restricted Stock March 31, 2023 \| $ / shares	$ 96.54
Weighted Average Grant Date Fair Value, Granted \| $ / shares	169.62
Weighted Average Grant Date Fair Value, Vested \| $ / shares	146.24
Weighted Average Grant Date Fair Value, Forfeited \| $ / shares	139.03
Weighted Average Grant Date Fair Value, Nonvested Restricted Stock at December 31, 2023 \| $ / shares	$ 125.1

Calculation of Basic and Dilute

Calculation of Basic and Diluted Common Shares Outstanding (Detail) - shares	3 Months Ended		9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Earnings Per Share [Abstract]
Weighted-Average Shares of Common Stock Outstanding	34,466,141	36,336,056	34,931,378	37,149,927
Assumed Exercise of Outstanding Dilutive Options	305,842	424,949	312,723	424,642
Less Shares Repurchased from Proceeds of Assumed Exercised Options	(169,413)	(294,478)	(170,910)	(305,741)
Restricted Stock Units	147,151	139,455	128,467	126,758
Weighted-Average Common Stock and Dilutive Securities Outstanding	34,749,721	36,605,982	35,201,658	37,395,586
Shares Excluded Due to Anti-Dilution Effects	5,558	66,802	22,145	46,736

Pension and Employee Benefit _2

Pension and Employee Benefit Plans - Additional information (Detail) $ in Millions	9 Months Ended
	Dec. 31, 2023 USD ($)
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected pension expense for fiscal 2024	$ 0.2

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail)	9 Months Ended
Income Taxes - Additional Information (Detail)	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Effective tax rate	22%
Statutory tax rate	21%

Long-Term Debt (Detail)

Long-Term Debt (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Mar. 31, 2023	Jul. 01, 2021
Debt Instrument [Line Items]
Revolving Credit Facility	$ 107,000	$ 157,000
Total Debt	1,042,000	1,099,500
Less: Current Portion of Long-term Debt	(10,000)	(10,000)
Less: Unamortized Discounts and Debt Issuance Costs	(9,518)	(10,468)
Long-term Debt	1,022,482	1,079,032
Term Loan [Member]
Debt Instrument [Line Items]
Total Debt	185,000	192,500
2.500% Senior Unsecured Notes Due 2031 [Member]
Debt Instrument [Line Items]
Total Debt	$ 750,000	$ 750,000	$ 750,000

Long-Term Debt (Parenthetical)

Long-Term Debt (Parenthetical) (Detail) - 2.500% Senior Unsecured Notes Due 2031 [Member]	9 Months Ended
	Dec. 31, 2023	Jul. 01, 2021
Debt Instrument [Line Items]
Debt instrument, interest rate	2.50%	2.50%
Debt instrument, maturity year	2031

Long-Term Debt - Additional Inf

Long-Term Debt - Additional Information (Detail)			1 Months Ended	9 Months Ended
Long-Term Debt - Additional Information (Detail)	May 05, 2022 USD ($)	Jul. 02, 2021 USD ($)	May 31, 2022	Dec. 31, 2023 USD ($)	Mar. 31, 2023 USD ($)	Jul. 01, 2021 USD ($)
Debt Instrument [Line Items]
Interest coverage ratio		250%
Borrowings outstanding under Credit Facility				$ 107,000,000	$ 157,000,000
Outstanding letters of credit, amount				8,300,000
Debt instrument, principal amount				1,042,000,000	1,099,500,000
Outstanding borrowings				634,700,000
Maturity Period 2021 [Member]
Debt Instrument [Line Items]
Unused line of credit commitment fee based on leverage ratio		9%
Maximum [Member]
Debt Instrument [Line Items]
Unused line of credit commitment fee based on leverage ratio		22.50%
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] \| Minimum [Member] \| Maturity Period 2021 [Member]
Debt Instrument [Line Items]
Variable margin		100%
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] \| Maximum [Member] \| Maturity Period 2021 [Member]
Debt Instrument [Line Items]
Variable margin		162.50%
NYFRB [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Variable margin		0%
NYFRB [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Variable margin		62.50%
Term Loan [Member]
Debt Instrument [Line Items]
Term loan facility, unused borrowing capacity, Amount	$ 200,000,000
Quarterly principle payments	$ 2,500,000
Debt instrument, principal amount				185,000,000	192,500,000
Debt instrument, maturity date			May 05, 2027
2.500% Senior Unsecured Notes Due 2031 [Member]
Debt Instrument [Line Items]
Debt instrument, principal amount				$ 750,000,000	$ 750,000,000	$ 750,000,000
Debt instrument, interest rate				2.50%		2.50%
Debt instrument, maturity period		2031-07
Debt instrument, original issue discount						$ 6,300,000
Effective interest rate						2.60%
Interest payment period		10-year
Semi annual basis, treasury rate		20%
Percentage of aggregate amount repurchased		101%
2.500% Senior Unsecured Notes Due 2031 [Member] \| Redeemable On or After April 1, 2031 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate						2.50%
Percentage of principal amount redeemable		100%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Borrowings outstanding under Credit Facility				$ 107,000
Outstanding borrowings				634,700,000
Revolving Credit Facility [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Supplementary leverage ratio						0.035
Revolving Credit Facility [Member] \| Swingline Loan [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity						$ 25,000,000
Revolving Credit Facility [Member] \| Unsecured Debt
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity				750,000,000
Revolving Credit Facility [Member] \| Term Loan [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity				$ 200,000,000
Line of Credit \| Maximum [Member]
Debt Instrument [Line Items]
Amount of increase in borrowing capacity		$ 375,000,000
Line of Credit \| NYFRB [Member]
Debt Instrument [Line Items]
Variable margin		0.50%
Letter of Credit [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity						1,125,000,000
Letter of Credit Facility						$ 40,000,000
Unused line of credit commitment fee based on leverage ratio				12.50%
Outstanding letters of credit, amount				$ 8,300,000

Segment Information - Additiona

Segment Information - Additional Information (Detail)	9 Months Ended
Segment Information - Additional Information (Detail)	Dec. 31, 2023 Plant Facility Location Terminal Sector Segment
Segment Reporting [Abstract]
Number of sectors \| Sector	2
Number of reportable business segments \| Segment	4
Cement plant locations \| Location	8
Slag grinding facility \| Facility	1
Cement distribution terminals \| Terminal	30
Readymix concrete batch plants	25
Aggregates processing plants	5
Gypsum wallboard plants	5
Proportionate consolidation of share of joint venture revenues and operating earnings	50%

Financial Information Related t

Financial Information Related to Operations by Segment (Detail) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2023 USD ($) kt	Dec. 31, 2022 USD ($) kt	Dec. 31, 2023 USD ($) kt	Dec. 31, 2022 USD ($) kt	Mar. 31, 2023 USD ($)
Segment Reporting Information [Line Items]
Revenue	$ 558,833	$ 511,487	$ 1,782,590	$ 1,677,942
Operating Earnings	189,913	170,147	588,431	527,506
Corporate General and Administrative Expense	(14,201)	(12,497)	(42,456)	(37,944)
Other Non-Operating Income	1,019	2,210	2,837	911
Earnings Before Interest and Income Taxes	176,731	159,860	548,812	490,473
Interest Expense, net	(10,128)	(8,932)	(32,571)	(24,842)
Earnings before Income Taxes	166,603	150,928	516,241	465,631
Capital Expenditures	22,435	17,702	87,848	60,951
Depreciation, Depletion and Amortization			111,347	103,689
Identifiable Assets	2,890,340		2,890,340		$ 2,781,002
Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	617,862	571,279	1,964,659	1,855,197
Depreciation, Depletion and Amortization	37,468	34,815	111,347	103,689
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenue	(32,346)	(32,172)	(99,356)	(98,190)
Revenue	32,346	32,172	99,356	98,190
Consolidation, Eliminations [Member]
Segment Reporting Information [Line Items]
Revenue	(26,683)	(27,620)	(82,713)	(79,065)
Cement [Member] \| Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	$ 308,654	$ 256,313	$ 998,437	$ 860,289
Cement Sales Volume \| kt	1,824	1,699	5,966	5,837
Operating Earnings	$ 105,566	$ 72,315	$ 301,056	$ 233,442
Capital Expenditures	11,571	7,278	38,288	21,157
Depreciation, Depletion and Amortization	22,514	$ 20,582	66,380	$ 60,893
Identifiable Assets	$ 1,997,649		$ 1,997,649		1,905,227
Cement [Member] \| Operating Segments [Member] \| Wholly-Owned [Member]
Segment Reporting Information [Line Items]
Cement Sales Volume \| kt	1,663	1,527	5,470	5,313
Operating Earnings	$ 96,281	$ 60,938	$ 278,266	$ 209,811
Cement [Member] \| Operating Segments [Member] \| Joint Venture [Member]
Segment Reporting Information [Line Items]
Cement Sales Volume \| kt	161	172	496	524
Operating Earnings	$ 9,285	$ 11,377	$ 22,790	$ 23,631
Cement [Member] \| Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenue	7,804	7,719	27,192	26,371
Concrete and Aggregates [Member] \| Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	61,186	55,176	201,526	186,407
Operating Earnings	1,760	2,692	13,434	15,700
Capital Expenditures	1,207	2,128	10,281	16,468
Depreciation, Depletion and Amortization	4,857	4,402	14,850	12,954
Identifiable Assets	229,998		229,998		234,767
Concrete and Aggregates [Member] \| Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenue	3,414	0	10,235	0
Gypsum Wallboard [Member] \| Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	200,969	212,016	629,299	652,981
Operating Earnings	75,063	87,335	251,625	261,164
Capital Expenditures	7,386	7,307	23,866	19,777
Depreciation, Depletion and Amortization	5,611	5,387	16,620	16,539
Identifiable Assets	412,092		412,092		421,425
Recycled Paperboard [Member] \| Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	47,053	47,774	135,397	155,520
Operating Earnings	7,524	7,805	22,316	17,200
Capital Expenditures	1,868	463	7,733	2,318
Depreciation, Depletion and Amortization	3,694	3,738	11,121	11,197
Identifiable Assets	168,120		168,120		163,797
Recycled Paperboard [Member] \| Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenue	21,128	24,453	61,929	71,819
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	403	526	7,680	1,231
Depreciation, Depletion and Amortization	792	$ 706	2,376	$ 2,106
Other, net [Member]
Segment Reporting Information [Line Items]
Identifiable Assets	$ 82,481		$ 82,481		$ 55,786

Segment Breakdown of Goodwill (

Segment Breakdown of Goodwill (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Mar. 31, 2023
Segment Reporting Information [Line Items]
Goodwill	$ 392,599	$ 380,711
Cement [Member]
Segment Reporting Information [Line Items]
Goodwill	227,669	215,781
Concrete and Aggregates [Member]
Segment Reporting Information [Line Items]
Goodwill	40,774	40,774
Gypsum Wallboard [Member]
Segment Reporting Information [Line Items]
Goodwill	116,618	116,618
Recycled Paperboard [Member]
Segment Reporting Information [Line Items]
Goodwill	$ 7,538	$ 7,538

Summarized Financial Informatio

Summarized Financial Information for Joint Venture Unconsolidated (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Mar. 31, 2023
Related Party Transaction [Line Items]
Revenue	$ 558,833	$ 511,487	$ 1,782,590	$ 1,677,942
Gross Margin	180,628	158,770	565,641	503,875
Earnings Before Income Taxes	166,603	150,928	516,241	465,631
Current Assets	587,731		587,731		$ 521,503
Current Liabilities	225,513		225,513		212,889
Joint Venture [Member] \| Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member]
Related Party Transaction [Line Items]
Revenue	53,366	55,240	165,426	158,129
Gross Margin	19,465	24,716	51,512	52,718
Earnings Before Income Taxes	18,711	$ 22,754	45,925	$ 47,262
Current Assets	104,158		104,158		88,562
Noncurrent Assets	150,950		150,950		124,503
Current Liabilities	$ 40,621		$ 40,621		$ 29,434

Interest Expense, Net (Detail)

Interest Expense, Net (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Interest Expense, Net (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Interest Income (Expense), Net [Abstract]
Interest Income	$ (150)	$ (163)	$ (523)	$ (245)
Interest Expense	9,804	8,621	31,671	23,676
Other Expenses	474	474	1,423	1,411
Interest Expense, net	$ 10,128	$ 8,932	$ 32,571	$ 24,842

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail)	Dec. 31, 2023 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Letters of credit outstanding, amount	$ 8,300,000
Outstanding guarantees	0
Contingently liable for performance, current	$ 29,300,000

Fair Value of Financial Instr_3

Fair Value of Financial Instruments (Detail) $ in Thousands	Dec. 31, 2023 USD ($)
2.500% Senior Unsecured Notes Due 2031 [Member]
Fair Value Of Financial Instruments [Line Items]
Fair Value of long term debt	$ 631,000

Fair Value of Financial Instr_4

Fair Value of Financial Instruments (Parenthetical) (Detail) - 2.500% Senior Unsecured Notes Due 2031 [Member]	9 Months Ended
	Dec. 31, 2023	Jul. 01, 2021
Fair Value Of Financial Instruments [Line Items]
Debt instrument, interest rate	2.50%	2.50%
Debt instrument, maturity year	2031