Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Nov. 30, 2025	Nov. 30, 2024	Nov. 30, 2025	Nov. 30, 2024
Income Statement [Abstract]
Sales	$ 425,746	$ 403,654	$ 1,264,983	$ 1,225,869
Cost of sales	323,805	305,876	957,620	921,907
Gross margin	101,941	97,778	307,363	303,962
Selling, general and administrative	32,462	39,243	99,874	108,032
Operating income	69,479	58,535	207,489	195,930
Interest expense	(12,206)	(19,223)	(44,434)	(63,906)
Equity in earnings of unconsolidated subsidiaries	(1,437)	7,168	231,431	12,470
Other income (expense), net	(276)	(763)	1,239	(142)
Income before income taxes	55,560	45,717	395,725	144,352
Income tax expense	14,485	12,114	94,396	35,728
Net income	41,075	33,603	301,329	108,624
Series A Preferred Stock Dividends	0	0	0	(1,200)
Redemption premium on Series A Preferred Stock	0	0	0	(75,198)
Net income (loss) available to common shareholders	$ 41,075	$ 33,603	$ 301,329	$ 32,226
Basic Earnings (Loss) Per Share [Abstract]
Basic earnings per common share (usd per share)	$ 1.37	$ 1.12	$ 10.05	$ 1.12
Diluted Earnings (Loss) Per Share [Abstract]
Diluted earnings per common share (usd per share)	$ 1.36	$ 1.12	$ 9.97	$ 1.11
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted average number common shares, basic (shares)	29,963,000	29,879,000	29,983,000	28,819,000
Weighted average number common shares, diluted (shares)	30,198,000	30,118,000	30,231,000	29,076,000
Cash dividends declared per common share (usd per share)	$ 0.20	$ 0.17	$ 0.57	$ 0.51