INCOME TAXES (Tables)

12 Months Ended

Mar. 31, 2025

Income Tax Disclosure [Abstract]

Schedule of Components of Provision for Income Taxes

The provision for income taxes from continuing operations includes the following components:

	For the Years Ended March 31,
	2025			2024		2023
	(dollars in thousands)
Current Provision
Federal	$	114,606		$	111,690	$	103,940
State		18,411			20,689		18,520
		133,017			132,379		122,460
Deferred Provision (Benefit)
Federal		(5,117	)		5,607		11,321
State		169			2,312		(6,728	)
		(4,948	)		7,919		4,593
Provision for Income Taxes	$	128,069		$	140,298	$	127,053

Schedule of Effective Tax Rates Vary from Federal Statutory Rates

The effective tax rates vary from the federal statutory rates due to the following items:

	For the Years Ended March 31,
	2025			2024			2023
	(dollars in thousands)
Earnings Before Income Taxes	$	591,485		$	617,937		$	588,593
Income Taxes at Statutory Rate	$	124,212		$	129,766		$	123,605
Increases (Decreases) in Tax Resulting From
State Income Taxes, net		14,680			18,172			16,821
Statutory Depletion in Excess of Cost		(9,927	)		(9,883	)		(8,253	)
Excess Tax Benefit from Stock Compensation		(3,951	)		(5,417	)		(1,593	)
Meals and Entertainment Disallowance		478			524			484
Limitation on Officers' Compensation		4,843			6,513			3,009
Valuation Allowance		500			500			(7,205	)
Other		(2,766	)		123			185
Provision for Income Taxes	$	128,069		$	140,298		$	127,053
Effective Tax Rate		22	%		23	%		22	%

Schedule of Components of Deferred Income Taxes

Components of deferred income taxes are as follows:

	For the Years Ended March 31,
	2025			2024
	(dollars in thousands)
Items Giving Rise to Deferred Tax Liabilities
Excess Tax Depreciation and Amortization	$	(256,999	)	$	(260,577	)
Depletable Assets		(4,455	)		(4,294	)
Investment in Joint Venture Basis Differences		(6,436	)		(7,710	)
Right-of-Use Assets		(7,996	)		(4,774	)
Inventory		(1,276	)		—
Other		—			(2,956	)
Total Deferred Tax Liabilities	$	(277,162	)	$	(280,311	)
Items Giving Rise to Deferred Tax Assets
Change in Accruals	$	12,866		$	13,313
Bad Debts		1,551			1,621
Long-term Incentive Compensation Plan		4,609			3,622
Credits and Other Carryforwards		9,905			11,466
Lease Liability		9,303			6,598
Inventory		—			307
Pension		984			1,087
Other		1,002			—
Subtotal		40,220			38,014
Valuation Allowance		(3,000	)		(2,500	)
Total Deferred Tax Assets	$	37,220		$	35,514

Reconciliation of Consolidated Liability for Gross Unrecognized Tax Benefits

The changes in unrecognized tax benefits for the years ended March 31, 2025, 2024, and 2023 were as follows:

	For the Years Ended March 31,
	2025			2024		2023
	(dollars in thousands)
Balance at Beginning of Year	$	1,284		$	1,284	$	1,284
Increase Related to Current Tax Positions		—			—		—
Decrease Related to Prior Year Tax Positions		(1,284	)		—		—
Payments		—			—		—
	$	—		$	1,284	$	1,284