Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	9 Months Ended
Dec. 31, 2021	Dec. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES
Net Earnings	$ 299,931	$ 273,433
Adjustments to Reconcile Net Earnings to Net Cash Provided by Operating Activities, Net of Effect of Non-Cash Activity
Depreciation, Depletion and Amortization	96,478	96,279
Write-off of debt issuance costs	6,101
Deferred Income Tax Provision	12,685	48,392
Stock Compensation Expense	10,637	12,057
Gain on Sale of Subsidiaries		(61,203)
Equity in Earnings of Unconsolidated Joint Venture	(24,785)	(28,456)
Distributions from Joint Venture	20,750	27,500
Changes in Operating Assets and Liabilities
Accounts and Notes Receivable	(23,595)	(6,859)
Inventories	23,771	37,084
Accounts Payable and Accrued Liabilities	13,629	5,572
Other Assets	(672)	(2,013)
Income Taxes Payable (Receivable)	(6,052)	126,513
Net Cash Provided by Operating Activities	428,878	542,017
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant, and Equipment	(55,188)	(45,541)
Proceeds from Sale of Businesses		91,022
Net Cash Provided by (Used in) Investing Activities	(55,188)	45,481
CASH FLOWS FROM FINANCING ACTIVITIES
Increase (Decrease) in Credit Facility	100,000	(560,000)
Repayment of Term Loan	(665,000)
Dividends Paid to Stockholders	(20,538)	(4,163)
Purchase and Retirement of Common Stock	(435,975)
Proceeds from Stock Option Exercises	20,754	8,649
Premium Paid on Early Retirement of Senior Notes	8,407
Payment of Debt Issuance Costs	(7,985)	(1,718)
Shares Redeemed to Settle Employee Taxes on Stock Compensation	(1,359)	(1,130)
Net Cash Used in Financing Activities	(624,818)	(558,362)
NET INCREASE (DECREASE) IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH	(251,128)	29,136
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH AT BEGINNING OF PERIOD	268,520	118,648
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH AT END OF PERIOD	17,392	$ 147,784
2.500% Senior Unsecured Notes [Member]
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from 2.500% Senior Unsecured Notes	743,692
4.500% Senior Unsecured Notes [Member]
CASH FLOWS FROM FINANCING ACTIVITIES
Repayment of 4.500% Senior Unsecured Notes	$ (350,000)

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