Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
CASH FLOWS FROM OPERATING ACTIVITIES
Net Earnings	$ 105,005	$ 95,327
Adjustments to Reconcile Net Earnings to Net Cash Provided by Operating Activities, Net of Effect of Non-Cash Activity
Depreciation, Depletion and Amortization	34,229	31,944
Deferred Income Tax Provision	2,547	1,799
Stock Compensation Expense	5,146	2,456
Equity in Earnings of Unconsolidated Joint Venture	(5,098)	(7,970)
Distributions from Joint Venture	4,500	7,000
Changes in Operating Assets and Liabilities
Accounts and Notes Receivable	(51,478)	(40,344)
Inventories	9,085	18,697
Accounts Payable and Accrued Liabilities	(6,389)	(2,938)
Other Assets	(1,109)	(8,704)
Income Taxes Payable (Receivable)	28,364	13,854
Net Cash Provided by Operating Activities	124,802	111,121
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant, and Equipment	(14,914)	(11,935)
Acquisition Spending	(121,162)
Net Cash Used in Investing Activities	(136,076)	(11,935)
CASH FLOWS FROM FINANCING ACTIVITIES
Increase (Decrease) in Credit Facility	(19,000)
Term Loan	200,000
Dividends Paid to Stockholders	(9,642)
Purchase and Retirement of Common Stock	(109,612)	(61,929)
Proceeds from Stock Option Exercises	667	8,222
Payment of Debt Issuance Costs	(777)	(1,243)
Shares Redeemed to Settle Employee Taxes on Stock Compensation	(1,497)	(1,214)
Net Cash Provided by (Used in) Financing Activities	60,139	(56,164)
NET INCREASE IN CASH AND CASH EQUIVALENTS	48,865	43,022
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	19,416	268,520
CASH AND CASH EQUIVALENTS AT END OF PERIOD	$ 68,281	$ 311,542