Eagle Materials (EXP) 10-Q 29 Jan 25 2025 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Dec. 31, 2024	Jan. 27, 2025
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Dec. 31, 2024
Document Fiscal Year Focus	2024
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		33,287,642
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, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Income Statement [Abstract]
Revenue	$ 558,025	$ 558,833	$ 1,790,333	$ 1,782,590
Cost of Goods Sold	380,212	378,205	1,221,808	1,216,949
Gross Profit	177,813	180,628	568,525	565,641
Equity in Earnings of Unconsolidated Joint Venture	4,987	9,285	21,979	22,790
Corporate General and Administrative Expense	(20,818)	(14,201)	(54,346)	(42,456)
Other Non-Operating Income (Loss)	1,381	1,019	4,788	2,837
Interest Expense, net	(9,061)	(10,128)	(30,459)	(32,571)
Earnings Before Income Taxes	154,302	166,603	510,487	516,241
Income Taxes	(34,728)	(37,465)	(113,551)	(115,701)
Net Earnings	$ 119,574	$ 129,138	$ 396,936	$ 400,540
EARNINGS PER SHARE
Basic	$ 3.59	$ 3.75	$ 11.85	$ 11.47
Diluted	$ 3.56	$ 3.72	$ 11.75	$ 11.38
AVERAGE SHARES OUTSTANDING
Basic	33,317,168	34,466,141	33,493,382	34,931,378
Diluted	33,608,538	34,749,721	33,771,660	35,201,658
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, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Statement of Comprehensive Income [Abstract]
Net Earnings	$ 119,574	$ 129,138	$ 396,936	$ 400,540
Net Actuarial Change in Defined Benefit Plans
Amortization of Net Actuarial Loss	60	63	180	189
Tax Expense	(15)	(15)	(45)	(45)
Comprehensive Earnings	$ 119,619	$ 129,186	$ 397,071	$ 400,684

Consolidated Balance Sheets (un

Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Dec. 31, 2024	Mar. 31, 2024
Current Assets
Cash and Cash Equivalents	$ 31,173	$ 34,925
Accounts and Notes Receivable, net	182,379	202,985
Inventories	392,266	373,923
Income Tax Receivable	1,743	9,910
Prepaid and Other Assets	10,901	5,950
Total Current Assets	618,462	627,693
Property, Plant, and Equipment, net	1,736,159	1,676,217
Investment in Joint Venture	135,672	113,478
Operating Lease Right-of-Use Assets	34,227	19,373
Goodwill and Intangible Assets, net	487,388	486,117
Other Assets	31,762	24,141
Total Assets	3,043,670	2,947,019
Current Liabilities
Accounts Payable	118,718	127,183
Accrued Liabilities	86,999	94,327
Income Tax Payable	3,090	0
Operating Lease Liabilities	5,074	7,899
Current Portion of Long-Term Debt	10,000	10,000
Total Current Liabilities	223,881	239,409
Long-Term Debt	991,749	1,083,299
Noncurrent Operating Lease Liabilities	34,951	19,037
Other Long-Term Liabilities	50,696	51,942
Deferred Income Taxes	246,254	244,797
Total Liabilities	1,547,531	1,638,484
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 33,391,155 and 34,143,945 Shares, respectively	334	341
Capital in Excess of Par Value	0	0
Accumulated Other Comprehensive Losses	(3,238)	(3,373)
Retained Earnings	1,499,043	1,311,567
Total Stockholders’ Equity	1,496,139	1,308,535
Total Liabilities and Stockholders' Equity	$ 3,043,670	$ 2,947,019

Consolidated Balance Sheets (_2

Consolidated Balance Sheets (unaudited) (Parenthetical) - $ / shares	Dec. 31, 2024	Mar. 31, 2024
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	33,391,155	34,143,945
Common Stock, Outstanding	33,391,155	34,143,945

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
CASH FLOWS FROM OPERATING ACTIVITIES
Net Earnings	$ 396,936	$ 400,540
Adjustments to Reconcile Net Earnings to Net Cash Provided by Operating Activities, Net of Effect of Non-Cash Activity
Depreciation, Depletion and Amortization	116,661	111,347
Deferred Income Tax Provision	1,457	9,324
Stock Compensation Expense	14,221	15,356
Equity in Earnings of Unconsolidated Joint Venture	(21,979)	(22,790)
Distributions from Joint Venture	0	7,000
Changes in Operating Assets and Liabilities
Accounts and Notes Receivable	20,606	9,452
Inventories	(17,277)	(27,137)
Accounts Payable and Accrued Liabilities	(15,175)	3,278
Other Assets	(18,041)	(19,428)
Income Taxes Payable (Receivable)	8,371	13,607
Net Cash Provided by Operating Activities	485,780	500,549
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant, and Equipment	(146,975)	(87,848)
Acquisition Spending	(24,881)	(55,053)
Net Cash Used in Investing Activities	(171,856)	(142,901)
CASH FLOWS FROM FINANCING ACTIVITIES
Borrowings Under Revolving Credit Facility	100,000	222,000
Repayment of Borrowings Under Revolving Credit Facility	(185,000)	(272,000)
Repayment of Term Loan	(7,500)	(7,500)
Dividends Paid to Stockholders	(25,373)	(26,692)
Purchase and Retirement of Common Stock	(201,276)	(248,852)
Payment of Excise Tax on Purchases and Retirements of Common Stock	(3,331)	0
Proceeds from Stock Option Exercises	6,260	11,560
Shares Redeemed to Settle Employee Taxes on Stock Compensation	(1,456)	(2,494)
Net Cash Used in Financing Activities	(317,676)	(323,978)
NET INCREASE IN CASH AND CASH EQUIVALENTS	(3,752)	33,670
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	34,925	15,242
CASH AND CASH EQUIVALENTS AT END OF PERIOD	$ 31,173	$ 48,912

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, 2023	$ 1,185,694	$ 358		$ 1,188,883	$ (3,547)
Net Earnings	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 Earnings	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 Earnings	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 Earnings	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)
Beginning balance at Mar. 31, 2024	1,308,535	341		1,311,567	(3,373)
Net Earnings	133,842			133,842
Stock Compensation Expense	4,539		4,539
Stock Option Exercises and Restricted Share Issuances	56		56
Shares Redeemed to Settle Employee Taxes	(1,421)		(1,421)
Purchase and Retirement of Common Stock	(86,345)	(3)	(3,174)	(83,168)
Dividends to Shareholders	(8,453)			(8,453)
Unfunded Pension Liability, net of tax	45				45
Ending Balance at Jun. 30, 2024	1,350,798	338		1,353,788	(3,328)
Beginning balance at Mar. 31, 2024	1,308,535	341		1,311,567	(3,373)
Net Earnings	396,936
Ending Balance at Dec. 31, 2024	1,496,139	334		1,499,043	(3,238)
Beginning balance at Jun. 30, 2024	1,350,798	338		1,353,788	(3,328)
Net Earnings	143,520			143,520
Stock Compensation Expense	4,864		4,864
Stock Option Exercises and Restricted Share Issuances	2,149		2,149
Shares Redeemed to Settle Employee Taxes	(35)		(35)
Purchase and Retirement of Common Stock	(61,293)	(3)	(6,978)	(54,312)
Dividends to Shareholders	(8,399)			(8,399)
Unfunded Pension Liability, net of tax	45				45
Ending Balance at Sep. 30, 2024	1,431,649	335		1,434,597	(3,283)
Net Earnings	119,574			119,574
Stock Compensation Expense	4,818		4,818
Stock Option Exercises and Restricted Share Issuances	4,055	1	4,054
Purchase and Retirement of Common Stock	(55,651)	(2)	$ (8,872)	(46,777)
Dividends to Shareholders	(8,351)			(8,351)
Unfunded Pension Liability, net of tax	45				45
Ending Balance at Dec. 31, 2024	$ 1,496,139	$ 334		$ 1,499,043	$ (3,238)

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2024	Dec. 31, 2023
Pay vs Performance Disclosure
Net Income (Loss)	$ 119,574	$ 143,520	$ 133,842	$ 129,138	$ 150,553	$ 120,849	$ 396,936	$ 400,540

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Dec. 31, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false
Rule 10b5-1 Arrangement Modified	false
Non-Rule 10b5-1 Arrangement Modified	false

BASIS OF PRESENTATION

BASIS OF PRESENTATION	9 Months Ended
	Dec. 31, 2024
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, 2024, 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 22, 2024. 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, and 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 PENDING ADOPTION In November 2023, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update No. 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures (ASU 2023-07), which is intended to improve reportable segment disclosure requirements, primarily through enhanced disclosures about significant segment expenses. ASU 2023-07 will become effective for public companies during annual reporting periods beginning after December 15, 2023, and interim reporting periods beginning after December 15, 2024, with early adoption permitted. The Company is currently evaluating the impact of adopting this guidance on its Consolidated Financial Statements. In December 2023, the FASB issued Accounting Standards Update No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures (ASU 2023-09), which focuses on the rate reconciliation and income taxes paid. ASU 2023-09 requires public entities to disclose, on an annual basis, a tabular rate reconciliation using both percentages and currency amounts organized by specified categories with certain reconciling items that exceed a specified threshold broken out by nature and jurisdiction. Additionally, all entities are required to disclose income taxes paid, net of refunds received, disaggregated by federal, state, and local jurisdiction, if the amount is at least 5% of the total income tax payments, net of refunds received, by individual jurisdiction. ASU 2023-09 is effective prospectively for annual periods beginning after December 15, 2024. Early adoption and retrospective application are permitted. ASU 2023-09 will not have any impact on the Company's results of operations, cash flows, and financial condition .

SUPPLEMENTAL CASH FLOW INFORMAT

SUPPLEMENTAL CASH FLOW INFORMATION	9 Months Ended
	Dec. 31, 2024
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, 2024 2023 (dollars in thousands) Cash Payments Interest $ 37,223 $ 38,797 Income Taxes 110,683 92,718 Operating Cash Flows Used for Operating Leases 6,802 7,016 Non-Cash Financing Activities Excise Tax on Share Repurchases $ 2,013 $ 3,227 Right-of-Use Assets Acquired for Capitalized Operating Leases 19,588 6,018

ACQUISITION

ACQUISITION	9 Months Ended
	Dec. 31, 2024
Business Combinations [Abstract]
ACQUISITION	(C) ACQUISITION On August 9, 2024, we purchased the assets of an aggregates operation in Battletown, Kentucky (the Kentucky Acquisition), which was accounted for under the acquisition method. The purchase price of the Kentucky Acquisition was approximately $ 24.9 million. The purchase price allocation has not yet been finalized. The purchase price was funded through borrowings under our Revolving Credit Facility. Operations related to the Kentucky Acquisition are included in the Concrete and Aggregates business in our segment reporting from August 9, 2024, through December 31, 2024. The following table summarizes the preliminary allocation of the purchase price to the fair value of assets acquired and liabilities assumed (based on Level 3 inputs) as of December 31, 2024: Estimated Fair Value Inventory $ 1,067 Property, Plant, and Equipment 16,815 Lease Right-of-Use Assets 757 Intangible Assets 1,309 Accrued Liabilities ( 71 ) Lease Obligations ( 757 ) Goodwill 5,761 Total Estimated Purchase Price $ 24,881 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 are approximately 15 years . All goodwill generated from the Kentucky Acquisition is deductible for income tax purposes. The following table presents the Revenue and Operating Loss related to the Kentucky Acquisition that has been included in our Consolidated Statement of Earnings from August 9, 2024, through December 31, 2024. For the Three Months Ended For the Nine Months Ended December 31, 2024 (dollars in thousands) Revenue $ 3,086 $ 4,821 Operating Loss $ ( 296 ) $ ( 642 ) Operating Loss for the three and nine months ended December 31, 2024, was affected by approximately $ 0.6 million and $ 1.0 million, respectively, related to depreciation and amortization. Operating Loss for the nine months ended December 31, 2024, was affected by approximately $ 0.7 million related to the recording of acquired inventories at fair value. Subsequent Acquisition On January 7, 2025, we purchased Bullskin Stone & Lime, LLC, a pure-play aggregates business located in Western Pennsylvania (the Pennsylvania Acquisition), which will be accounted for under the acquisition method. The purchase price of the Pennsylvania Acquisition was approximately $ 152.5 million, subject to customary post-closing adjustments. The purchase price was funded through borrowings under our Revolving Credit Facility. Operations related to the Pennsylvania Acquisition will be included in the Concrete and Aggregates business in our segment reporting.

REVENUE

REVENUE	9 Months Ended
	Dec. 31, 2024
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
	Dec. 31, 2024
Receivables [Abstract]
ACCOUNTS AND NOTES RECEIVABLE	(E) ACCOUNTS AND NOTES RECEIVABLE Accounts Receivable are shown net of the allowance for credit losses totaling $ 6.6 million and $ 6.7 million at December 31, 2024, and March 31, 2024, 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 on detailed analysis of economic trends in the construction industry, the expected collectability of past-due accounts receivable, and the expected collectability of overall receivables. We have no significant credit risk concentration among our diversified customer base.

INVENTORIES

INVENTORIES	9 Months Ended
	Dec. 31, 2024
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, 2024 2024 (dollars in thousands) Raw Materials and Materials-in-Progress $ 140,568 $ 122,772 Finished Cement 65,839 71,396 Aggregates 16,676 12,149 Gypsum Wallboard 6,747 5,242 Recycled Paperboard 9,401 14,278 Repair Parts and Supplies 128,584 127,511 Fuel and Coal 24,451 20,575 $ 392,266 $ 373,923

ACCRUED EXPENSES

ACCRUED EXPENSES	9 Months Ended
	Dec. 31, 2024
Payables and Accruals [Abstract]
ACCRUED EXPENSES	(G) ACCRUED EXPENSES Accrued Expenses consist of the following: December 31, March 31, 2024 2024 (dollars in thousands) Payroll and Incentive Compensation $ 34,500 $ 34,274 Benefits 17,374 17,507 Dividends 8,559 6,374 Interest 1,348 8,729 Property Taxes 4,902 5,921 Power and Fuel 3,359 2,993 Freight 4,004 2,893 Excise Tax 2,851 4,170 Legal and Professional 2,150 2,602 Sales and Use Tax 1,300 1,372 Other 6,652 7,492 $ 86,999 $ 94,327

LEASES

LEASES	9 Months Ended
	Dec. 31, 2024
Leases [Abstract]
LEASES	(H) LEASES We lease certain real estate, buildings, and equipment, including railcars and barges. 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. During December 2024 we extended the term of the lease of our corporate office from May 2029 to January 2036 . 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, 2024 2023 2024 2023 (dollars in thousands) Operating Lease Cost $ 1,982 $ 1,921 $ 5,933 $ 6,148 Short-Term Lease Cost 317 187 962 601 Total Lease Cost $ 2,299 $ 2,108 $ 6,895 $ 6,749 The Right-of-Use Assets and Lease Liabilities are reflected on our Balance Sheet as follows: December 31, March 31, 2024 2024 (dollars in thousands) Operating Leases Operating Lease Right-of-Use Assets $ 34,227 $ 19,373 Current Operating Lease Liabilities $ 5,074 $ 7,899 Noncurrent Operating Lease Liabilities 34,951 19,037 Total Operating Lease Liabilities $ 40,025 $ 26,936 Future payments for operating leases are as follows (dollars in thousands): Fiscal Year Amount 2025 (remaining three months) $ 1,893 2026 4,959 2027 4,183 2028 3,495 2029 3,530 Thereafter 34,094 Total Lease Payments $ 52,154 Less: Imputed Interest ( 12,129 ) Present Value of Lease Liabilities $ 40,025 Weighted-Average Remaining Lease Term (in years) 11.2 Weighted-Average Discount Rate 3.30 %

SHARE-BASED EMPLOYEE COMPENSATI

SHARE-BASED EMPLOYEE COMPENSATION	9 Months Ended
	Dec. 31, 2024
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 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 and consultants, independent contractors, and agents of the Company. The Compensation Committee of our Board of Directors (Compensation Committee) specifies grant terms for awards under the Plan . Fiscal 2025 Equity Awards In May 2024, the Compensation Committee awarded to certain officers and key employees an aggregate of 29,391 performance stock units and 1,963 performance stock options, as compensation for achievement of the target level of performance (collectively, the Performance Stock Awards). For the Performance Stock Awards to be earned, the Company must achieve performance vesting criteria as modified based on the Company’s average absolute total stockholder return during the performance period. The performance vesting criteria are based on certain levels of average annual return on equity (as defined in the Performance Stock Award Agreements) ranging from 10.0 % to 20.0 % measured at the end of fiscal 2027 (three-year performance period) as modified by total stockholder return . Performance outcomes (taking into account both criteria) will result in a threshold vesting percentage of 50 % of target, and maximum performance will result in a vesting percentage of 200 % of target. If the threshold vesting percentage is not achieved, none of the Performance Stock Awards will be earned. Our Performance Stock Awards are evaluated on a quarterly basis with adjustments to compensation expense based on the likelihood of the performance targets being achieved or exceeded. The maximum expense for our outstanding Performance Stock Awards is approximately $ 11.7 million. Any forfeitures are recognized as a reduction to expense in the period in which they occur . The fair value of the above Performance Stock Awards was determined using a Monte Carlo simulation. The following are key inputs in the Monte Carlo analysis for the Fiscal 2025 Employee Performance Stock Award. Measurement Period (in years) 2.85 Risk-Free Interest Rate 4.7 % Dividend Yield 0.4 % Volatility 31.4 % Estimated Fair Value of Market-Based PSAs at Grant Date $ 238.27 In addition to the Performance Stock Awards discussed above, the Compensation Committee approved the granting to certain officers and key employees an aggregate of 1,963 time-vesting stock options, which vest ratably over three years (the Fiscal 2025 Employee Time-Vesting Stock Option Grant) and 30,272 shares of time-vesting restricted stock units, which vest ratably over three years (the Fiscal 2025 Employee Restricted Stock Unit Time-Vesting Award). The Fiscal 2025 Employee Restricted Stock Unit Time-Vesting Award was valued at the closing price of the stock on the grant date and is being expensed over a three-year period. The Fiscal 2025 Employee Time-Vesting Stock Option Grant was valued at its grant date using the Black-Scholes option pricing model, which used similar inputs as the Monte Carlo analysis shown above . In August 2024, the Compensation Committee granted 1,550 options to members of the Board of Directors (the Fiscal 2025 Board of Directors Stock Option Award). Options granted under the Fiscal 2025 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 2025 Board of Directors Stock Option Award was valued at its grant date using the Black-Scholes option pricing model and is being expensed over a one-year period. The weighted-average assumptions used in the Black-Scholes model to value the Fiscal 2025 Board of Directors Stock Option Award are as follows: Dividend Yield 0.5 % Expected Volatility 38.8 % Risk-Free Interest Rate 4.4 % Expected Life 6.0 years In August 2024, the Compensation Committee granted 7,078 shares of time-vesting restricted stock to members of the Board of Directors (the Fiscal 2025 Board of Directors Restricted Stock Award). Restricted stock granted under the Fiscal 2025 Board of Directors Restricted Stock Award vest one year after the grant date and were valued at the closing price of the stock on the grant date. The value of the Fiscal 2025 Board of Directors Restricted Stock Award is being expensed over a one-year period. In addition to the awards described above, we may issue equity awards, including stock options, restricted stock, and restricted stock units, 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, while restricted stock and restricted stock units are valued using the closing price on the date of grant and expensed over the vesting period. Long-Term Compensation Plans STOCK OPTIONS Stock option expense for all outstanding stock option awards totaled approximately $ 0.3 million and $ 0.9 million for the three and nine months ended December 31, 2024, respectively, and $ 0.5 million and $ 1.5 million for the three and nine months ended December 31, 2023, respectively. At December 31, 2024, there was approximately $ 1.4 million of unrecognized compensation expense related to outstanding stock options, which is expected to be recognized over a weighted-average period of 1.3 years. The following table represents stock option activity for the nine months ended December 31, 2024: Number Weighted- Outstanding Options at March 31, 2024 252,364 $ 91.28 Granted 5,476 $ 244.92 Exercised ( 71,353 ) $ 90.04 Cancelled ( 1,054 ) $ 125.97 Outstanding Options at December 31, 2024 185,433 $ 95.78 Options Exercisable at December 31, 2024 148,214 Weighted-Average Fair Value of Options Granted $ 104.45 The following table summarizes information about stock options outstanding at December 31, 2024: Options Outstanding Options Exercisable Range of Exercise Prices Number of Weighted- Weighted- Number of Weighted- $ 59.32 - $ 81.28 88,060 4.78 $ 63.01 88,060 $ 63.01 $ 91.21 - $ 100.88 34,052 3.60 $ 95.12 32,194 $ 94.99 $ 118.27 - $ 139.25 48,931 7.36 $ 126.59 22,043 $ 126.41 $ 143.09 - $ 261.76 14,390 8.38 $ 193.10 5,917 $ 158.49 185,433 5.52 $ 95.78 148,214 $ 83.19 At December 31, 2024, the aggregate intrinsic value of the outstanding and exercisable options was approximately $ 28.0 million and $ 24.2 million, respectively. The total intrinsic value of options exercised during the nine months ended December 31, 2024, was approximately $ 14.5 million. RESTRICTED STOCK UNITS AND RESTRICTED STOCK The following table summarizes the activity for restricted stock units and nonvested restricted stock during the nine months ended December 31, 2024: Number of Shares Weighted-Average Grant Date Fair Value Restricted Stock Units and Nonvested Restricted Stock at March 31, 2024 204,946 $ 121.12 Granted 66,741 $ 240.61 Vested ( 26,194 ) $ 183.42 Forfeited — $ — Restricted Stock Units and Nonvested Restricted Stock at December 31, 2024 245,493 $ 156.30 Expense related to restricted stock units and restricted stock was approximately $ 4.5 million and $ 13.3 million for the three and nine months ended December 31, 2024, respectively, and $ 4.0 million and $ 13.8 million for the three and nine months ended December 31, 2023, respectively. At December 31, 2024, there was approximately $ 23.7 million of unearned compensation from restricted stock units and restricted stock, which will be recognized over a weighted-average period of 1.5 years. The number of shares available for future grants of stock options, restricted stock units, stock appreciation rights, and restricted stock under the Plan was 1,343,966 at December 31, 2024.

COMPUTATION OF EARNINGS PER SHA

COMPUTATION OF EARNINGS PER SHARE	9 Months Ended
	Dec. 31, 2024
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, 2024 2023 2024 2023 Weighted-Average Shares of Common Stock Outstanding 33,317,168 34,466,141 33,493,382 34,931,378 Effect of Dilutive Shares Assumed Exercise of Outstanding Dilutive Options 203,978 305,842 231,459 312,723 Less Shares Repurchased from Proceeds of Assumed Exercised Options ( 67,763 ) ( 169,413 ) ( 86,173 ) ( 170,910 ) Restricted Stock and Restricted Stock Units 155,155 147,151 132,992 128,467 Weighted-Average Common Stock and Dilutive Securities Outstanding 33,608,538 34,749,721 33,771,660 35,201,658 Shares Excluded Due to Anti-Dilution Effects 5,476 5,558 4,047 22,145

PENSION AND EMPLOYEE BENEFIT PL

PENSION AND EMPLOYEE BENEFIT PLANS	9 Months Ended
	Dec. 31, 2024
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, 2024. Due to the frozen status and current funding of the single-employer pension plans, our expected pension expense for fiscal 2025 is less than $ 0.2 million.

INCOME TAXES

INCOME TAXES	9 Months Ended
	Dec. 31, 2024
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, 2024, was approximately 22 %, which was consistent with the effective tax rate of 22 % for the nine months ended December 31, 2023. The effective tax rate was higher than the U.S. Statutory rate of 21 % mainly due to state income taxes, partially offset by a benefit recognized related to percentage depletion.

LONG-TERM DEBT

LONG-TERM DEBT	9 Months Ended
	Dec. 31, 2024
Debt Disclosure [Abstract]
LONG-TERM DEBT	(M) LONG-TERM DEBT Long-term Debt at December 31, 2024 is as follows: December 31, March 31, 2024 2024 (dollars in thousands) Revolving Credit Facility $ 85,000 $ 170,000 2.500 % Senior Unsecured Notes Due 2031 750,000 750,000 Term Loan 175,000 182,500 Total Debt 1,010,000 1,102,500 Less: Current Portion of Long-Term Debt ( 10,000 ) ( 10,000 ) Less: Unamortized Discounts and Debt Issuance Costs ( 8,251 ) ( 9,201 ) Long-Term Debt $ 991,749 $ 1,083,299 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 $ 85.0 million of outstanding borrowings under the Revolving Credit Facility, plus $ 10.0 million outstanding letters of credit as of December 31, 2024. Subsequent to December 31, 2024, we borrowed approximately $ 152.5 million to fund the Pennsylvania Acquisition. After this borrowing, we have $ 502.5 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, 2024; therefore, the entire $ 502.5 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
	Dec. 31, 2024
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 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 to build, expand, and repair roads and buildings; and all repair and remodel activities. Demand for our products is generally cyclical and seasonal, depending on economic and geographic conditions. We distribute our products across many United States markets, 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 (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 our Texas Lehigh joint venture (The Joint Venture)), two slag grinding facilities (one of which is operated through the Joint Venture), and more than 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 25 readymix concrete batch plants and seven 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, 2024 2023 2024 2023 (dollars in thousands) Revenue Cement $ 295,400 $ 308,654 $ 987,342 $ 998,437 Concrete and Aggregates 60,716 61,186 195,511 201,526 Gypsum Wallboard 209,493 200,969 642,294 629,299 Recycled Paperboard 56,158 47,053 161,175 135,397 621,767 617,862 1,986,322 1,964,659 Less: Intersegment Revenue ( 37,316 ) ( 32,346 ) ( 111,428 ) ( 99,356 ) Less: Joint Venture Revenue ( 26,426 ) ( 26,683 ) ( 84,561 ) ( 82,713 ) $ 558,025 $ 558,833 $ 1,790,333 $ 1,782,590 For the Three Months Ended December 31, For the Nine Months Ended December 31, 2024 2023 2024 2023 (dollars in thousands) Intersegment Revenue Cement $ 9,084 $ 7,804 $ 29,748 $ 27,192 Concrete and Aggregates 4,311 3,414 12,138 10,235 Recycled Paperboard 23,921 21,128 69,542 61,929 $ 37,316 $ 32,346 $ 111,428 $ 99,356 Cement Sales Volume (M tons) Wholly Owned 1,541 1,663 5,156 5,470 Joint Venture 161 161 517 496 1,702 1,824 5,673 5,966 For the Three Months Ended December 31, For the Nine Months Ended December 31, 2024 2023 2024 2023 (dollars in thousands) (dollars in thousands) Operating Earnings Cement $ 86,763 $ 105,566 $ 291,821 $ 301,056 Concrete and Aggregates ( 1,397 ) 1,760 588 13,434 Gypsum Wallboard 86,393 75,063 270,510 251,625 Recycled Paperboard 11,041 7,524 27,585 22,316 Sub-Total 182,800 189,913 590,504 588,431 Corporate General and Administrative Expense ( 20,818 ) ( 14,201 ) ( 54,346 ) ( 42,456 ) Other Non-Operating Income (Loss) 1,381 1,019 4,788 2,837 Earnings Before Interest and Income Taxes 163,363 176,731 540,946 548,812 Interest Expense, net ( 9,061 ) ( 10,128 ) ( 30,459 ) ( 32,571 ) Earnings Before Income Taxes $ 154,302 $ 166,603 $ 510,487 $ 516,241 Cement Operating Earnings Wholly Owned $ 81,776 $ 96,281 $ 269,842 $ 278,266 Joint Venture 4,987 9,285 21,979 22,790 $ 86,763 $ 105,566 $ 291,821 $ 301,056 Capital Expenditures Cement $ 35,609 $ 11,571 $ 102,384 $ 38,288 Concrete and Aggregates 4,668 1,207 18,795 10,281 Gypsum Wallboard 2,560 7,386 9,925 23,866 Recycled Paperboard 4,309 1,868 12,425 7,733 Corporate and Other 224 403 3,446 7,680 $ 47,370 $ 22,435 $ 146,975 $ 87,848 Depreciation, Depletion, and Amortization Cement $ 23,029 $ 22,514 $ 68,853 $ 66,380 Concrete and Aggregates 5,261 4,857 15,074 14,850 Gypsum Wallboard 6,414 5,611 19,338 16,620 Recycled Paperboard 3,723 3,694 11,082 11,121 Corporate and Other 807 792 2,314 2,376 $ 39,234 $ 37,468 $ 116,661 $ 111,347 December 31, March 31, 2024 2024 (dollars in thousands) Identifiable Assets Cement $ 2,115,736 $ 2,042,499 Concrete and Aggregates 259,266 225,485 Gypsum Wallboard 409,056 432,122 Recycled Paperboard 168,690 170,832 Other, net 90,922 76,081 $ 3,043,670 $ 2,947,019 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, 2024 2024 (dollars in thousands) Cement $ 227,639 $ 227,639 Concrete and Aggregates 46,534 40,774 Gypsum Wallboard 116,618 116,618 Recycled Paperboard 7,538 7,538 $ 398,329 $ 392,569 The increase in Goodwill in the Concrete and Aggregates segment is related to the Kentucky 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, 2024 2023 2024 2023 (dollars in thousands) (dollars in thousands) Revenue $ 52,852 $ 53,366 $ 153,619 $ 165,426 Gross Margin $ 12,483 $ 19,465 $ 45,948 $ 51,512 Earnings Before Income Taxes $ 10,058 $ 18,711 $ 41,733 $ 45,925 December 31, March 31, 2024 2024 (dollars in thousands) Current Assets $ 117,957 $ 111,164 Noncurrent Assets $ 206,037 $ 158,618 Current Liabilities $ 47,579 $ 27,994

INTEREST EXPENSE

INTEREST EXPENSE	9 Months Ended
	Dec. 31, 2024
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, 2024 2023 2024 2023 (dollars in thousands) (dollars in thousands) Interest Income $ ( 223 ) $ ( 150 ) $ ( 963 ) $ ( 523 ) Interest Expense 8,810 9,804 29,998 31,671 Other Expenses 474 474 1,424 1,423 Interest Expense, net $ 9,061 $ 10,128 $ 30,459 $ 32,571 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
	Dec. 31, 2024
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, 2024, we had contingent liabilities under these outstanding letters of credit of approximately $ 10.0 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 $ 30.0 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
	Dec. 31, 2024
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, 2024, was as follows: Fair Value (dollars in thousands) 2.500 % Senior Unsecured Notes Due 2031 $ 639,000 The carrying values of Cash and Cash Equivalents, Accounts Receivable, Accounts Payable, and Accrued Liabilities approximate their fair values at December 31, 2024, 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, 2024.

BASIS OF PRESENTATION (Policies

BASIS OF PRESENTATION (Policies)	9 Months Ended
	Dec. 31, 2024
Accounting Policies [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements PENDING ADOPTION In November 2023, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update No. 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures (ASU 2023-07), which is intended to improve reportable segment disclosure requirements, primarily through enhanced disclosures about significant segment expenses. ASU 2023-07 will become effective for public companies during annual reporting periods beginning after December 15, 2023, and interim reporting periods beginning after December 15, 2024, with early adoption permitted. The Company is currently evaluating the impact of adopting this guidance on its Consolidated Financial Statements. In December 2023, the FASB issued Accounting Standards Update No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures (ASU 2023-09), which focuses on the rate reconciliation and income taxes paid. ASU 2023-09 requires public entities to disclose, on an annual basis, a tabular rate reconciliation using both percentages and currency amounts organized by specified categories with certain reconciling items that exceed a specified threshold broken out by nature and jurisdiction. Additionally, all entities are required to disclose income taxes paid, net of refunds received, disaggregated by federal, state, and local jurisdiction, if the amount is at least 5% of the total income tax payments, net of refunds received, by individual jurisdiction. ASU 2023-09 is effective prospectively for annual periods beginning after December 15, 2024. Early adoption and retrospective application are permitted. ASU 2023-09 will not have any impact on the Company's results of operations, cash flows, and financial condition .

SUPPLEMENTAL CASH FLOW INFORM_2

SUPPLEMENTAL CASH FLOW INFORMATION (Tables)	9 Months Ended
	Dec. 31, 2024
Supplemental Cash Flow Elements [Abstract]
Supplemental Cash Flow Information	Supplemental cash flow information is as follows: For the Nine Months Ended December 31, 2024 2023 (dollars in thousands) Cash Payments Interest $ 37,223 $ 38,797 Income Taxes 110,683 92,718 Operating Cash Flows Used for Operating Leases 6,802 7,016 Non-Cash Financing Activities Excise Tax on Share Repurchases $ 2,013 $ 3,227 Right-of-Use Assets Acquired for Capitalized Operating Leases 19,588 6,018

ACQUISITION (Tables)

ACQUISITION (Tables)	9 Months Ended
	Dec. 31, 2024
Business Combinations [Abstract]
Schedule of Recognized Fair Value of Identified Assets Acquired and Liabilities Assumed	The following table summarizes the preliminary allocation of the purchase price to the fair value of assets acquired and liabilities assumed (based on Level 3 inputs) as of December 31, 2024: Estimated Fair Value Inventory $ 1,067 Property, Plant, and Equipment 16,815 Lease Right-of-Use Assets 757 Intangible Assets 1,309 Accrued Liabilities ( 71 ) Lease Obligations ( 757 ) Goodwill 5,761 Total Estimated Purchase Price $ 24,881
Schedule of Revenue and Operating Earnings Related to Business Acquisition	The following table presents the Revenue and Operating Loss related to the Kentucky Acquisition that has been included in our Consolidated Statement of Earnings from August 9, 2024, through December 31, 2024. For the Three Months Ended For the Nine Months Ended December 31, 2024 (dollars in thousands) Revenue $ 3,086 $ 4,821 Operating Loss $ ( 296 ) $ ( 642 )

INVENTORIES (Tables)

INVENTORIES (Tables)	9 Months Ended
	Dec. 31, 2024
Inventory Disclosure [Abstract]
Schedule of Inventories	Inventories consist of the following: December 31, March 31, 2024 2024 (dollars in thousands) Raw Materials and Materials-in-Progress $ 140,568 $ 122,772 Finished Cement 65,839 71,396 Aggregates 16,676 12,149 Gypsum Wallboard 6,747 5,242 Recycled Paperboard 9,401 14,278 Repair Parts and Supplies 128,584 127,511 Fuel and Coal 24,451 20,575 $ 392,266 $ 373,923

ACCRUED EXPENSES (Tables)

ACCRUED EXPENSES (Tables)	9 Months Ended
	Dec. 31, 2024
Payables and Accruals [Abstract]
Schedule of Accrued Expenses	Accrued Expenses consist of the following: December 31, March 31, 2024 2024 (dollars in thousands) Payroll and Incentive Compensation $ 34,500 $ 34,274 Benefits 17,374 17,507 Dividends 8,559 6,374 Interest 1,348 8,729 Property Taxes 4,902 5,921 Power and Fuel 3,359 2,993 Freight 4,004 2,893 Excise Tax 2,851 4,170 Legal and Professional 2,150 2,602 Sales and Use Tax 1,300 1,372 Other 6,652 7,492 $ 86,999 $ 94,327

LEASES (Tables)

LEASES (Tables)	9 Months Ended
	Dec. 31, 2024
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, 2024 2023 2024 2023 (dollars in thousands) Operating Lease Cost $ 1,982 $ 1,921 $ 5,933 $ 6,148 Short-Term Lease Cost 317 187 962 601 Total Lease Cost $ 2,299 $ 2,108 $ 6,895 $ 6,749
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, 2024 2024 (dollars in thousands) Operating Leases Operating Lease Right-of-Use Assets $ 34,227 $ 19,373 Current Operating Lease Liabilities $ 5,074 $ 7,899 Noncurrent Operating Lease Liabilities 34,951 19,037 Total Operating Lease Liabilities $ 40,025 $ 26,936
Schedule of Future Payments for Operating Leases	Future payments for operating leases are as follows (dollars in thousands): Fiscal Year Amount 2025 (remaining three months) $ 1,893 2026 4,959 2027 4,183 2028 3,495 2029 3,530 Thereafter 34,094 Total Lease Payments $ 52,154 Less: Imputed Interest ( 12,129 ) Present Value of Lease Liabilities $ 40,025 Weighted-Average Remaining Lease Term (in years) 11.2 Weighted-Average Discount Rate 3.30 %

SHARE-BASED EMPLOYEE COMPENSA_2

SHARE-BASED EMPLOYEE COMPENSATION (Tables)	9 Months Ended
	Dec. 31, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock Option Activity	The following table represents stock option activity for the nine months ended December 31, 2024: Number Weighted- Outstanding Options at March 31, 2024 252,364 $ 91.28 Granted 5,476 $ 244.92 Exercised ( 71,353 ) $ 90.04 Cancelled ( 1,054 ) $ 125.97 Outstanding Options at December 31, 2024 185,433 $ 95.78 Options Exercisable at December 31, 2024 148,214 Weighted-Average Fair Value of Options Granted $ 104.45
Stock Options Outstanding	The following table summarizes information about stock options outstanding at December 31, 2024: Options Outstanding Options Exercisable Range of Exercise Prices Number of Weighted- Weighted- Number of Weighted- $ 59.32 - $ 81.28 88,060 4.78 $ 63.01 88,060 $ 63.01 $ 91.21 - $ 100.88 34,052 3.60 $ 95.12 32,194 $ 94.99 $ 118.27 - $ 139.25 48,931 7.36 $ 126.59 22,043 $ 126.41 $ 143.09 - $ 261.76 14,390 8.38 $ 193.10 5,917 $ 158.49 185,433 5.52 $ 95.78 148,214 $ 83.19
Summary of Activity for Restricted Stock Units and Nonvested Restricted Stock	The following table summarizes the activity for restricted stock units and nonvested restricted stock during the nine months ended December 31, 2024: Number of Shares Weighted-Average Grant Date Fair Value Restricted Stock Units and Nonvested Restricted Stock at March 31, 2024 204,946 $ 121.12 Granted 66,741 $ 240.61 Vested ( 26,194 ) $ 183.42 Forfeited — $ — Restricted Stock Units and Nonvested Restricted Stock at December 31, 2024 245,493 $ 156.30
Fiscal 2025 Employee Performance Stock Awards [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Weighted-Average Assumptions Used to Value Option Awards	The fair value of the above Performance Stock Awards was determined using a Monte Carlo simulation. The following are key inputs in the Monte Carlo analysis for the Fiscal 2025 Employee Performance Stock Award. Measurement Period (in years) 2.85 Risk-Free Interest Rate 4.7 % Dividend Yield 0.4 % Volatility 31.4 % Estimated Fair Value of Market-Based PSAs at Grant Date $ 238.27
Fiscal 2025 Board of Directors Stock Option Award [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Weighted-Average Assumptions Used to Value Option Awards	The weighted-average assumptions used in the Black-Scholes model to value the Fiscal 2025 Board of Directors Stock Option Award are as follows: Dividend Yield 0.5 % Expected Volatility 38.8 % Risk-Free Interest Rate 4.4 % Expected Life 6.0 years

COMPUTATION OF EARNINGS PER S_2

COMPUTATION OF EARNINGS PER SHARE (Tables)	9 Months Ended
	Dec. 31, 2024
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, 2024 2023 2024 2023 Weighted-Average Shares of Common Stock Outstanding 33,317,168 34,466,141 33,493,382 34,931,378 Effect of Dilutive Shares Assumed Exercise of Outstanding Dilutive Options 203,978 305,842 231,459 312,723 Less Shares Repurchased from Proceeds of Assumed Exercised Options ( 67,763 ) ( 169,413 ) ( 86,173 ) ( 170,910 ) Restricted Stock and Restricted Stock Units 155,155 147,151 132,992 128,467 Weighted-Average Common Stock and Dilutive Securities Outstanding 33,608,538 34,749,721 33,771,660 35,201,658 Shares Excluded Due to Anti-Dilution Effects 5,476 5,558 4,047 22,145

LONG-TERM DEBT (Tables)

LONG-TERM DEBT (Tables)	9 Months Ended
	Dec. 31, 2024
Debt Instrument [Line Items]
Long-Term Debt	Long-term Debt at December 31, 2024 is as follows: December 31, March 31, 2024 2024 (dollars in thousands) Revolving Credit Facility $ 85,000 $ 170,000 2.500 % Senior Unsecured Notes Due 2031 750,000 750,000 Term Loan 175,000 182,500 Total Debt 1,010,000 1,102,500 Less: Current Portion of Long-Term Debt ( 10,000 ) ( 10,000 ) Less: Unamortized Discounts and Debt Issuance Costs ( 8,251 ) ( 9,201 ) Long-Term Debt $ 991,749 $ 1,083,299

SEGMENT INFORMATION (Tables)

SEGMENT INFORMATION (Tables)	9 Months Ended
	Dec. 31, 2024
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, 2024 2023 2024 2023 (dollars in thousands) Revenue Cement $ 295,400 $ 308,654 $ 987,342 $ 998,437 Concrete and Aggregates 60,716 61,186 195,511 201,526 Gypsum Wallboard 209,493 200,969 642,294 629,299 Recycled Paperboard 56,158 47,053 161,175 135,397 621,767 617,862 1,986,322 1,964,659 Less: Intersegment Revenue ( 37,316 ) ( 32,346 ) ( 111,428 ) ( 99,356 ) Less: Joint Venture Revenue ( 26,426 ) ( 26,683 ) ( 84,561 ) ( 82,713 ) $ 558,025 $ 558,833 $ 1,790,333 $ 1,782,590 For the Three Months Ended December 31, For the Nine Months Ended December 31, 2024 2023 2024 2023 (dollars in thousands) Intersegment Revenue Cement $ 9,084 $ 7,804 $ 29,748 $ 27,192 Concrete and Aggregates 4,311 3,414 12,138 10,235 Recycled Paperboard 23,921 21,128 69,542 61,929 $ 37,316 $ 32,346 $ 111,428 $ 99,356 Cement Sales Volume (M tons) Wholly Owned 1,541 1,663 5,156 5,470 Joint Venture 161 161 517 496 1,702 1,824 5,673 5,966 For the Three Months Ended December 31, For the Nine Months Ended December 31, 2024 2023 2024 2023 (dollars in thousands) (dollars in thousands) Operating Earnings Cement $ 86,763 $ 105,566 $ 291,821 $ 301,056 Concrete and Aggregates ( 1,397 ) 1,760 588 13,434 Gypsum Wallboard 86,393 75,063 270,510 251,625 Recycled Paperboard 11,041 7,524 27,585 22,316 Sub-Total 182,800 189,913 590,504 588,431 Corporate General and Administrative Expense ( 20,818 ) ( 14,201 ) ( 54,346 ) ( 42,456 ) Other Non-Operating Income (Loss) 1,381 1,019 4,788 2,837 Earnings Before Interest and Income Taxes 163,363 176,731 540,946 548,812 Interest Expense, net ( 9,061 ) ( 10,128 ) ( 30,459 ) ( 32,571 ) Earnings Before Income Taxes $ 154,302 $ 166,603 $ 510,487 $ 516,241 Cement Operating Earnings Wholly Owned $ 81,776 $ 96,281 $ 269,842 $ 278,266 Joint Venture 4,987 9,285 21,979 22,790 $ 86,763 $ 105,566 $ 291,821 $ 301,056 Capital Expenditures Cement $ 35,609 $ 11,571 $ 102,384 $ 38,288 Concrete and Aggregates 4,668 1,207 18,795 10,281 Gypsum Wallboard 2,560 7,386 9,925 23,866 Recycled Paperboard 4,309 1,868 12,425 7,733 Corporate and Other 224 403 3,446 7,680 $ 47,370 $ 22,435 $ 146,975 $ 87,848 Depreciation, Depletion, and Amortization Cement $ 23,029 $ 22,514 $ 68,853 $ 66,380 Concrete and Aggregates 5,261 4,857 15,074 14,850 Gypsum Wallboard 6,414 5,611 19,338 16,620 Recycled Paperboard 3,723 3,694 11,082 11,121 Corporate and Other 807 792 2,314 2,376 $ 39,234 $ 37,468 $ 116,661 $ 111,347 December 31, March 31, 2024 2024 (dollars in thousands) Identifiable Assets Cement $ 2,115,736 $ 2,042,499 Concrete and Aggregates 259,266 225,485 Gypsum Wallboard 409,056 432,122 Recycled Paperboard 168,690 170,832 Other, net 90,922 76,081 $ 3,043,670 $ 2,947,019
Segment Breakdown of Goodwill	The segment breakdown of Goodwill is as follows: December 31, March 31, 2024 2024 (dollars in thousands) Cement $ 227,639 $ 227,639 Concrete and Aggregates 46,534 40,774 Gypsum Wallboard 116,618 116,618 Recycled Paperboard 7,538 7,538 $ 398,329 $ 392,569
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, 2024 2023 2024 2023 (dollars in thousands) (dollars in thousands) Revenue $ 52,852 $ 53,366 $ 153,619 $ 165,426 Gross Margin $ 12,483 $ 19,465 $ 45,948 $ 51,512 Earnings Before Income Taxes $ 10,058 $ 18,711 $ 41,733 $ 45,925 December 31, March 31, 2024 2024 (dollars in thousands) Current Assets $ 117,957 $ 111,164 Noncurrent Assets $ 206,037 $ 158,618 Current Liabilities $ 47,579 $ 27,994

INTEREST EXPENSE (Tables)

INTEREST EXPENSE (Tables)	9 Months Ended
	Dec. 31, 2024
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, 2024 2023 2024 2023 (dollars in thousands) (dollars in thousands) Interest Income $ ( 223 ) $ ( 150 ) $ ( 963 ) $ ( 523 ) Interest Expense 8,810 9,804 29,998 31,671 Other Expenses 474 474 1,424 1,423 Interest Expense, net $ 9,061 $ 10,128 $ 30,459 $ 32,571

FAIR VALUE OF FINANCIAL INSTR_2

FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)	9 Months Ended
	Dec. 31, 2024
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, 2024, was as follows: Fair Value (dollars in thousands) 2.500 % Senior Unsecured Notes Due 2031 $ 639,000

Supplemental Cash Flow Inform_3

Supplemental Cash Flow Information (Detail) - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Cash Payments
Interest	$ 37,223	$ 38,797
Income Taxes	110,683	92,718
Operating Cash Flows Used for Operating Leases	6,802	7,016
Non-Cash Financing Activities
Excise Tax on Share Repurchases	2,013	3,227
Right-of-Use Assets Acquired for Capitalized Operating Leases	$ 19,588	$ 6,018

Acquisition - Additional Inform

Acquisition - Additional Information (Detail) - USD ($) $ in Thousands			3 Months Ended	9 Months Ended
	Jan. 07, 2025	Aug. 09, 2024	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2023
Business Acquisition [Line Items]
Purchase price of separate operating segment				$ 24,881	$ 55,053
Battletown Acquisition [Member]
Business Acquisition [Line Items]
Purchase price of separate operating segment		$ 24,900
Depreciation			$ 600	600
Amortization			$ 1,000	$ 1,000
Battletown Acquisition [Member] | Minimum [Member]
Business Acquisition [Line Items]
Property, plant and equipment, estimated useful life			5 years	5 years
Battletown 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
Battletown Acquisition [Member] | Fair Value Adjustment to Inventory [Member]
Business Acquisition [Line Items]
Inventory			$ 700	$ 700
Bullskin Stone Lime L L C [Member] | Subsequent Event [Member]
Business Acquisition [Line Items]
Purchase price of separate operating segment	$ 152,500

Acquisition - Schedule of Recog

Acquisition - Schedule of Recognized Fair Value of Identified Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Mar. 31, 2024
Business Acquisition [Line Items]
Goodwill	$ 398,329	$ 392,569
Battletown Acquisition [Member] | Level 3 Inputs [Member]
Business Acquisition [Line Items]
Inventory	1,067
Property, Plant, and Equipment	16,815
Lease Right-of-Use Assets	757
Intangible Assets	1,309
Accrued Liabilities	(71)
Lease Obligations	(757)
Goodwill	5,761
Total Estimated Purchase Price	$ 24,881

Acquisition - Schedule of Reven

Acquisition - Schedule of Revenue and Operating Earnings Related to Business Acquisition (Detail) - Battletown Acquisition [Member] - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Dec. 31, 2024	Dec. 31, 2024
Business Acquisition [Line Items]
Revenue	$ 3,086	$ 4,821
Operating Loss	$ (296)	$ (642)

Revenue - Additional Informatio

Revenue - Additional Information (Detail)	9 Months Ended
	Dec. 31, 2024
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, 2024	Mar. 31, 2024
Receivables [Abstract]
Allowance for doubtful accounts	$ 6.6	$ 6.7

Inventories - Schedule of Inven

Inventories - Schedule of Inventories (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Mar. 31, 2024
Inventory [Line Items]
Inventories	$ 392,266	$ 373,923
Raw Materials and Material-in-Progress [Member]
Inventory [Line Items]
Inventories	140,568	122,772
Finished Cement [Member]
Inventory [Line Items]
Inventories	65,839	71,396
Aggregates [Member]
Inventory [Line Items]
Inventories	16,676	12,149
Gypsum Wallboard [Member]
Inventory [Line Items]
Inventories	6,747	5,242
Recycled Paperboard [Member]
Inventory [Line Items]
Inventories	9,401	14,278
Repair Parts and Supplies [Member]
Inventory [Line Items]
Inventories	128,584	127,511
Fuel and Coal [Member]
Inventory [Line Items]
Inventories	$ 24,451	$ 20,575

Accrued Expenses - Schedule of

Accrued Expenses - Schedule of Accrued Expenses (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Mar. 31, 2024
Accounts Payable and Accrued Liabilities, Current [Abstract]
Payroll and Incentive Compensation	$ 34,500	$ 34,274
Benefits	17,374	17,507
Dividends	8,559	6,374
Interest	1,348	8,729
Property Taxes	4,902	5,921
Power and Fuel	3,359	2,993
Freight	4,004	2,893
Excise Tax	2,851	4,170
Legal and Professional	2,150	2,602
Sales and Use Tax	1,300	1,372
Other	6,652	7,492
Accrued Expenses, Total	$ 86,999	$ 94,327

Leases - Additional Information

Leases - Additional Information (Detail)	1 Months Ended
	Dec. 31, 2024
Lessee Lease Description [Line Items]
Extended expiration date on lease	May 2029 to January 2036
Minimum [Member]
Lessee Lease Description [Line Items]
Operating lease term	1 year
Maximum [Member]
Lessee Lease Description [Line Items]
Operating lease term	20 years

Leases - Schedule of Lease Expe

Leases - Schedule of Lease Expense for Operating and Short-Term Leases (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Leases [Abstract]
Operating Lease Cost	$ 1,982	$ 1,921	$ 5,933	$ 6,148
Short-Term Lease Cost	317	187	962	601
Total Lease Cost	$ 2,299	$ 2,108	$ 6,895	$ 6,749

Leases - Schedule of Balance Sh

Leases - Schedule of Balance Sheet Information Related to Leases (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Mar. 31, 2024
Operating Leases
Operating Lease Right-of-Use Assets	$ 34,227	$ 19,373
Current Operating Lease Liabilities	5,074	7,899
Noncurrent Operating Lease Liabilities	34,951	19,037
Total Operating Lease Liabilities	$ 40,025	$ 26,936

Leases - Schedule of Future Pay

Leases - Schedule of Future Payments for Operating Leases (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Mar. 31, 2024
Leases [Abstract]
2025 (remaining three months)	$ 1,893
2026	4,959
2027	4,183
2028	3,495
2029	3,530
Thereafter	34,094
Total Lease Payments	52,154
Less: Imputed Interest	(12,129)
Present Value of Lease Liabilities	$ 40,025	$ 26,936
Weighted-Average Remaining Lease Term (in years)	11 years 2 months 12 days
Weighted-Average Discount Rate	3.30%

Share-Based Employee Compensa_3

Share-Based Employee Compensation - Additional Information (Detail) - USD ($) $ in Millions	1 Months Ended		3 Months Ended		9 Months Ended
	Aug. 31, 2024	May 31, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023	Aug. 03, 2023
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares available for future grant			1,343,966		1,343,966
Common Stock, Capital Shares Reserved for Future Issuance							1,425,000
Stock option expense			$ 0.3	$ 0.5	$ 0.9	$ 1.5
Aggregate intrinsic value for outstanding options			28		28
Aggregate intrinsic value for exercisable options			$ 24.2		24.2
Total intrinsic value of options exercised					$ 14.5
Options granted					5,476
Maximum Performance Level [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting Percentage of Target PSA's					200%
Threshold Performance Level [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting Percentage of Target PSA's					50%
Fiscal 2025 Board of Directors Stock Option Award [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation award expiration term	10 years
Options granted	1,550
Fiscal 2025 Board of Directors Restricted Stock Award [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation vesting period	1 year
Share-based payment award, granted	7,078
Performance share units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Allocated share based compensation expense					$ 11.7
Performance share units [Member] | Fiscal 2025 Stock Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares available for future grant		29,391
Performance stock options [Member] | Fiscal 2025 Stock Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares available for future grant		1,963
Performance Vesting Stock Options [Member] | Long Term Compensation Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock based compensation plan, description					The performance vesting criteria are based on certain levels of average annual return on equity (as defined in the Performance Stock Award Agreements) ranging from 10.0% to 20.0% measured at the end of fiscal 2027 (three-year performance period) as modified by total stockholder return. Performance outcomes (taking into account both criteria) will result in a threshold vesting percentage of 50% of target, and maximum performance will result in a vesting percentage of 200% of target. If the threshold vesting percentage is not achieved, none of the Performance Stock Awards will be earned.
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%
Fiscal Two Thousand Twenty Five 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			1,963		1,963
Share-based compensation vesting period					3 years
Fiscal Two Thousand Twenty Five Time Vesting Restricted Stock [Member] | Long Term Compensation Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
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 3 months 18 days
Unrecognized compensation expense			$ 1.4		$ 1.4
Time Vesting Restricted Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares available for future grant			30,272		30,272
Restricted Stock Units and 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 6 months
Restricted stock or unit expense			$ 4.5	$ 4	$ 13.3	$ 13.8
Unrecognized compensation expense			$ 23.7		$ 23.7
Share-based payment award, granted					66,741

Share-Based Employee Compensa_4

Share-Based Employee Compensation - Weighted-Average Assumptions Used to Value Option Awards (Detail)	9 Months Ended
	Dec. 31, 2024 $ / shares
Fiscal 2025 Employee Performance Stock Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Measurement Period / Expected Life	2 years 10 months 6 days
Risk-Free Interest Rate	4.70%
Dividend Yield	0.40%
Expected Volatility	31.40%
Estimated Fair Value of Market-Based PSAs at Grant Date	$ 238.27
Fiscal 2025 Board of Directors Stock Option Award [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Measurement Period / Expected Life	6 years
Risk-Free Interest Rate	4.40%
Dividend Yield	0.50%
Expected Volatility	38.80%

Share-Based Employee Compensa_5

Share-Based Employee Compensation - Stock Option Activity (Detail)	9 Months Ended
	Dec. 31, 2024 $ / shares shares
Share-Based Payment Arrangement [Abstract]
Number of Shares, Outstanding Options at March 31, 2024 | shares	252,364
Number of Shares, Granted | shares	5,476
Number of Shares, Exercised | shares	(71,353)
Number of Shares, Cancelled | shares	(1,054)
Number of Shares, Outstanding Options at December 31, 2024 | shares	185,433
Number of Shares, Options Exercisable at December 31, 2024 | shares	148,214
Weighted Average Fair Value of Options Granted During the Year | $ / shares	$ 104.45
Weighted-Average Exercise Price, Outstanding Options at March 31, 2024 | $ / shares	91.28
Weighted-Average Exercise Price, Granted | $ / shares	244.92
Weighted-Average Exercise Price, Exercised | $ / shares	90.04
Weighted-Average Exercise Price, Cancelled | $ / shares	125.97
Weighted-Average Exercise Price, Outstanding Options at December 31, 2024 | $ / shares	$ 95.78

Share-Based Employee Compensa_6

Share-Based Employee Compensation - Stock Options Outstanding (Detail)	9 Months Ended
	Dec. 31, 2024 $ / shares shares
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Options Outstanding, Number of Shares Outstanding | shares	185,433
Options Outstanding, Weighted-Average Remaining Contractual Life (in years)	5 years 6 months 7 days
Options Outstanding, Weighted-Average Exercise Price	$ 95.78
Options Exercisable , Number of Shares Outstanding | shares	148,214
Options Exercisable, Weighted-Average Exercise Price	$ 83.19
$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	88,060
Options Outstanding, Weighted-Average Remaining Contractual Life (in years)	4 years 9 months 10 days
Options Outstanding, Weighted-Average Exercise Price	$ 63.01
Options Exercisable , Number of Shares Outstanding | shares	88,060
Options Exercisable, Weighted-Average Exercise Price	$ 63.01
$91.21 - $100.88 [Member]
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Range	91.21
Range of Exercise Prices, Upper Range	$ 100.88
Options Outstanding, Number of Shares Outstanding | shares	34,052
Options Outstanding, Weighted-Average Remaining Contractual Life (in years)	3 years 7 months 6 days
Options Outstanding, Weighted-Average Exercise Price	$ 95.12
Options Exercisable , Number of Shares Outstanding | shares	32,194
Options Exercisable, Weighted-Average Exercise Price	$ 94.99
$118.27 - $139.25 [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	$ 139.25
Options Outstanding, Number of Shares Outstanding | shares	48,931
Options Outstanding, Weighted-Average Remaining Contractual Life (in years)	7 years 4 months 9 days
Options Outstanding, Weighted-Average Exercise Price	$ 126.59
Options Exercisable , Number of Shares Outstanding | shares	22,043
Options Exercisable, Weighted-Average Exercise Price	$ 126.41
$143.09 - $261.76 [Member]
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Range	143.09
Range of Exercise Prices, Upper Range	$ 261.76
Options Outstanding, Number of Shares Outstanding | shares	14,390
Options Outstanding, Weighted-Average Remaining Contractual Life (in years)	8 years 4 months 17 days
Options Outstanding, Weighted-Average Exercise Price	$ 193.1
Options Exercisable , Number of Shares Outstanding | shares	5,917
Options Exercisable, Weighted-Average Exercise Price	$ 158.49

Share-Based Employee Compensa_7

Share-Based Employee Compensation - Summary of Activity for Restricted Stock Units and Nonvested Restricted Stock (Detail) - Restricted Stock Units and Restricted Stock [Member]	9 Months Ended
	Dec. 31, 2024 $ / shares shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Shares, Restricted Stock Units and Nonvested Restricted Stock at March 31, 2024 | shares	204,946
Number of Shares, Granted | shares	66,741
Number of Shares, Vested | shares	(26,194)
Number of Shares, Forfeited | shares	0
Number of Shares, Restricted Stock Units and Nonvested Restricted Stock at December 31, 2024 | shares	245,493
Weighted Average Grant Date Fair Value, Restricted Stock Units and Nonvested Restricted Stock at March 31, 2024 | $ / shares	$ 121.12
Weighted Average Grant Date Fair Value, Granted | $ / shares	240.61
Weighted Average Grant Date Fair Value, Vested | $ / shares	183.42
Weighted Average Grant Date Fair Value, Forfeited | $ / shares	0
Weighted Average Grant Date Fair Value, Restricted Stock Units and Nonvested Restricted Stock at December 31, 2024 | $ / shares	$ 156.3

Computation of Earnings Per S_3

Computation of Earnings Per Share - Calculation of Basic and Diluted Common Shares Outstanding (Detail) - shares	3 Months Ended		9 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Earnings Per Share [Abstract]
Weighted-Average Shares of Common Stock Outstanding	33,317,168	34,466,141	33,493,382	34,931,378
Assumed Exercise of Outstanding Dilutive Options	203,978	305,842	231,459	312,723
Less Shares Repurchased from Proceeds of Assumed Exercised Options	(67,763)	(169,413)	(86,173)	(170,910)
Restricted Stock and Restricted Stock Units	155,155	147,151	132,992	128,467
Weighted-Average Common Stock and Dilutive Securities Outstanding	33,608,538	34,749,721	33,771,660	35,201,658
Shares Excluded Due to Anti-Dilution Effects	5,476	5,558	4,047	22,145

Pension and Employee Benefit _2

Pension and Employee Benefit Plans - Additional information (Detail) $ in Millions	9 Months Ended
	Dec. 31, 2024 USD ($)
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected pension expense for fiscal 2025	$ 0.2

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail)	9 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Effective tax rate	22%	22%
Statutory tax rate	21%

Long-Term Debt - Long-Term Debt

Long-Term Debt - Long-Term Debt (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Mar. 31, 2024	Jul. 01, 2021
Debt Instrument [Line Items]
Revolving Credit Facility	$ 85,000	$ 170,000
Long-Term Debt, Gross, Total	1,010,000	1,102,500
Less: Current Portion of Long-Term Debt	(10,000)	(10,000)
Less: Unamortized Discounts and Debt Issuance Costs	(8,251)	(9,201)
Long-Term Debt	991,749	1,083,299
Term Loan [Member]
Debt Instrument [Line Items]
Long-Term Debt, Gross, Total	175,000	182,500
2.500% Senior Unsecured Notes Due 2031 [Member]
Debt Instrument [Line Items]
Long-Term Debt, Gross, Total	$ 750,000	$ 750,000	$ 750,000

Long-Term Debt - Long-Term De_2

Long-Term Debt - Long-Term Debt (Parenthetical) (Detail) - 2.500% Senior Unsecured Notes Due 2031 [Member]	9 Months Ended
	Dec. 31, 2024	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) $ in Thousands			1 Months Ended	9 Months Ended
	May 05, 2022 USD ($)	Jul. 02, 2021 USD ($)	May 31, 2022	Dec. 31, 2024 USD ($)	Jan. 01, 2025 USD ($)	Mar. 31, 2024 USD ($)	Jul. 01, 2021 USD ($)
Debt Instrument [Line Items]
Interest coverage ratio		250%
Borrowings outstanding under Credit Facility				$ 85,000		$ 170,000
Outstanding letters of credit, amount				10,000
Debt instrument, principal amount				1,010,000		1,102,500
Outstanding borrowings				502,500
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
Quarterly principle payments	$ 2,500
Debt instrument, principal amount				175,000		182,500
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		$ 750,000	$ 750,000
Debt instrument, interest rate				2.50%			2.50%
Debt instrument, maturity period		2031-07
Debt instrument, original issue discount							$ 6,300
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				$ 85,000
Outstanding borrowings				502,500
Revolving Credit Facility [Member] | Subsequent Event [Member]
Debt Instrument [Line Items]
Borrowings outstanding under Credit Facility					$ 152,500
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
Revolving Credit Facility [Member] | Unsecured Debt
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity				750,000
Revolving Credit Facility [Member] | Term Loan [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity				$ 200,000
Line of Credit | Maximum [Member]
Debt Instrument [Line Items]
Amount of increase in borrowing capacity		$ 375,000
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
Letter of Credit Facility							$ 40,000
Unused line of credit commitment fee based on leverage ratio				12.50%
Outstanding letters of credit, amount				$ 10,000

Segment Information - Additiona

Segment Information - Additional Information (Detail)	9 Months Ended
	Dec. 31, 2024 Plant Facility Terminal Location Segment Sector
Segment Reporting [Abstract]
Number of sectors | Sector	2
Number of reportable business segments | Segment	4
Cement plant locations | Location	8
Slag grinding facility | Facility	2
Cement distribution terminals | Terminal	30
Readymix concrete batch plants	25
Aggregates processing plants	7
Gypsum wallboard plants	5
Proportionate consolidation of share of joint venture revenues and operating earnings	50%

Segment Information - Financial

Segment Information - Financial Information Related to Operations by Segment (Detail) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2024 USD ($) kt	Dec. 31, 2023 USD ($) kt	Dec. 31, 2024 USD ($) kt	Dec. 31, 2023 USD ($) kt	Mar. 31, 2024 USD ($)
Segment Reporting Information [Line Items]
Revenue	$ 558,025	$ 558,833	$ 1,790,333	$ 1,782,590
Operating Earnings	182,800	189,913	590,504	588,431
Corporate General and Administrative Expense	(20,818)	(14,201)	(54,346)	(42,456)
Other Non-Operating Income (Loss)	1,381	1,019	4,788	2,837
Earnings Before Interest and Income Taxes	163,363	176,731	540,946	548,812
Interest Expense, net	(9,061)	(10,128)	(30,459)	(32,571)
Earnings Before Income Taxes	154,302	166,603	510,487	516,241
Capital Expenditures	47,370	22,435	146,975	87,848
Depreciation, Depletion and Amortization			116,661	111,347
Identifiable Assets	3,043,670		3,043,670		$ 2,947,019
Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	621,767	617,862	1,986,322	1,964,659
Depreciation, Depletion and Amortization	39,234	37,468	116,661	111,347
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenue	(37,316)	(32,346)	(111,428)	(99,356)
Revenue	37,316	32,346	111,428	99,356
Consolidation, Eliminations [Member]
Segment Reporting Information [Line Items]
Revenue	(26,426)	(26,683)	(84,561)	(82,713)
Cement [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	$ 295,400	$ 308,654	$ 987,342	$ 998,437
Cement Sales Volume | kt	1,702	1,824	5,673	5,966
Operating Earnings	$ 86,763	$ 105,566	$ 291,821	$ 301,056
Capital Expenditures	35,609	11,571	102,384	38,288
Depreciation, Depletion and Amortization	23,029	$ 22,514	68,853	$ 66,380
Identifiable Assets	$ 2,115,736		$ 2,115,736		2,042,499
Cement [Member] | Operating Segments [Member] | Wholly-Owned [Member]
Segment Reporting Information [Line Items]
Cement Sales Volume | kt	1,541	1,663	5,156	5,470
Operating Earnings	$ 81,776	$ 96,281	$ 269,842	$ 278,266
Cement [Member] | Operating Segments [Member] | Joint Venture [Member]
Segment Reporting Information [Line Items]
Cement Sales Volume | kt	161	161	517	496
Operating Earnings	$ 4,987	$ 9,285	$ 21,979	$ 22,790
Cement [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenue	9,084	7,804	29,748	27,192
Concrete and Aggregates [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	60,716	61,186	195,511	201,526
Operating Earnings	(1,397)	1,760	588	13,434
Capital Expenditures	4,668	1,207	18,795	10,281
Depreciation, Depletion and Amortization	5,261	4,857	15,074	14,850
Identifiable Assets	259,266		259,266		225,485
Concrete and Aggregates [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenue	4,311	3,414	12,138	10,235
Gypsum Wallboard [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	209,493	200,969	642,294	629,299
Operating Earnings	86,393	75,063	270,510	251,625
Capital Expenditures	2,560	7,386	9,925	23,866
Depreciation, Depletion and Amortization	6,414	5,611	19,338	16,620
Identifiable Assets	409,056		409,056		432,122
Recycled Paperboard [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	56,158	47,053	161,175	135,397
Operating Earnings	11,041	7,524	27,585	22,316
Capital Expenditures	4,309	1,868	12,425	7,733
Depreciation, Depletion and Amortization	3,723	3,694	11,082	11,121
Identifiable Assets	168,690		168,690		170,832
Recycled Paperboard [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenue	23,921	21,128	69,542	61,929
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	224	403	3,446	7,680
Depreciation, Depletion and Amortization	807	$ 792	2,314	$ 2,376
Other, net [Member]
Segment Reporting Information [Line Items]
Identifiable Assets	$ 90,922		$ 90,922		$ 76,081

Segment Information - Segment B

Segment Information - Segment Breakdown of Goodwill (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Mar. 31, 2024
Segment Reporting Information [Line Items]
Goodwill	$ 398,329	$ 392,569
Cement [Member]
Segment Reporting Information [Line Items]
Goodwill	227,639	227,639
Concrete and Aggregates [Member]
Segment Reporting Information [Line Items]
Goodwill	46,534	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

Segment Information - Summarize

Segment Information - Summarized Financial Information for Joint Venture Unconsolidated (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023	Mar. 31, 2024
Related Party Transaction [Line Items]
Revenue	$ 558,025	$ 558,833	$ 1,790,333	$ 1,782,590
Gross Margin	177,813	180,628	568,525	565,641
Earnings Before Income Taxes	154,302	166,603	510,487	516,241
Current Assets	618,462		618,462		$ 627,693
Current Liabilities	223,881		223,881		239,409
Joint Venture [Member] | Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member]
Related Party Transaction [Line Items]
Revenue	52,852	53,366	153,619	165,426
Gross Margin	12,483	19,465	45,948	51,512
Earnings Before Income Taxes	10,058	$ 18,711	41,733	$ 45,925
Current Assets	117,957		117,957		111,164
Noncurrent Assets	206,037		206,037		158,618
Current Liabilities	$ 47,579		$ 47,579		$ 27,994

Interest Expense, Net (Detail)

Interest Expense, Net (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Interest Income (Expense), Net [Abstract]
Interest Income	$ (223)	$ (150)	$ (963)	$ (523)
Interest Expense	8,810	9,804	29,998	31,671
Other Expenses	474	474	1,424	1,423
Interest Expense, net	$ 9,061	$ 10,128	$ 30,459	$ 32,571

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail)	Dec. 31, 2024 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Letters of credit outstanding, amount	$ 10,000,000
Outstanding guarantees	0
Contingently liable for performance, current	$ 30,000,000

Fair Value of Financial Instr_3

Fair Value of Financial Instruments (Detail) $ in Thousands	Dec. 31, 2024 USD ($)
2.500% Senior Unsecured Notes Due 2031 [Member]
Fair Value Of Financial Instruments [Line Items]
Fair Value of long term debt	$ 639,000

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, 2024	Jul. 01, 2021
Fair Value Of Financial Instruments [Line Items]
Debt instrument, interest rate	2.50%	2.50%
Debt instrument, maturity year	2031