Consolidated Statements of Earnings (unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Revenue	$ 462,941	$ 404,667	$ 1,448,405	$ 1,279,340
Cost of Goods Sold	324,355	291,288	1,027,967	940,815
Gross Profit	138,586	113,379	420,438	338,525
Equity in Earnings of Unconsolidated Joint Venture	8,555	10,083	24,785	28,456
Corporate General and Administrative Expense	(12,851)	(11,327)	(32,986)	(40,225)
Premium Paid on Early Retirement of Senior Notes			(8,407)
Gain on Sale of Businesses				51,973
Other Non-Operating Income (Loss)	3,207	2,297	5,941	1,898
Interest Expense, net	(5,651)	(9,360)	(24,891)	(35,957)
Earnings from Continuing Operations Before Income Taxes	131,846	105,072	384,880	344,670
Income Taxes	(29,367)	(23,879)	(84,949)	(76,515)
Earnings from Continuing Operations	102,479	81,193	299,931	268,155
Earnings from Discontinued Operations, net of Income Taxes				5,278
Net Earnings	$ 102,479	$ 81,193	$ 299,931	$ 273,433
BASIC EARNINGS PER SHARE
Continuing Operations	$ 2.56	$ 1.96	$ 7.30	$ 6.47
Discontinued Operations				0.13
Net Earnings	2.56	1.96	7.30	6.60
DILUTED EARNINGS PER SHARE
Continuing Operations	2.53	1.94	7.23	6.43
Discontinued Operations				0.13
Net Earnings	$ 2.53	$ 1.94	$ 7.23	$ 6.56
AVERAGE SHARES OUTSTANDING
Basic	40,049,456	41,494,149	41,096,702	41,451,801
Diluted	40,458,049	41,834,590	41,493,339	41,682,541
CASH DIVIDENDS PER SHARE	$ 0.25		$ 0.50	$ 0.10