Consolidated Statements of Earnings - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Revenue	$ 2,259,297	$ 2,148,069	$ 1,861,522
Cost of Goods Sold	1,573,976	1,508,803	1,341,908
Gross Profit	685,321	639,266	519,614
Equity in Earnings of Unconsolidated Joint Venture	31,581	35,474	32,488
Corporate General and Administrative Expense	(59,795)	(53,630)	(46,801)
Loss on Early Retirement of Senior Notes	0	0	(8,407)
Other Nonoperating Income	3,087	2,654	9,073
Interest Expense, net	(42,257)	(35,171)	(30,873)
Earnings Before Income Taxes	617,937	588,593	475,094
Income Taxes	(140,298)	(127,053)	(100,847)
Net Earnings	$ 477,639	$ 461,540	$ 374,247
EARNINGS PER SHARE
Basic	$ 13.72	$ 12.54	$ 9.23
Diluted	$ 13.61	$ 12.46	$ 9.14
AVERAGE SHARES OUTSTANDING
Basic	34,811,560	36,798,354	40,547,048
Diluted	35,097,871	37,052,942	40,929,712
CASH DIVIDENDS PER SHARE	$ 1	$ 1	$ 0.75