Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	May 31, 2023	May 31, 2022
Income Statement [Abstract]
Sales	$ 390,873	$ 207,134
Costs and Expenses
Cost of sales	293,854	147,081
Gross margin	97,019	60,053
Selling, general and administrative	31,523	32,144
Operating income from continuing operations	65,496	27,909
Interest expense	28,706	7,472
Equity in (earnings) loss of unconsolidated subsidiaries	(1,420)	0
Other (income) expense, net	38	(27)
Income from continuing operations before income taxes	38,172	20,464
Income tax expense	9,650	5,111
Net income from continuing operations	28,522	15,353
Income from discontinued operations, net of tax	0	8,724
Net income (loss) from discontinued operations	0	8,724
Net income (loss)	28,522	24,077
Dividends on preferred stock	(3,600)	0
Net income (loss) available to common shareholders	$ 24,922	$ 24,077
Basic earnings (loss) per share
Earnings (loss) per common share from continuing operations (in dollars per share)	$ 1.00	$ 0.62
Earnings (loss) per common share from discontinued operations (in dollars per share)	0	0.35
Basic earnings per common share (usd per share)	1.00	0.97
Diluted Earnings (Loss) Per Share [Abstract]
Diluted earnings per common share (usd per share)	0.98	0.96
Earnings (loss) per common share from continuing operations (in dollars per share)	0.98	0.62
Earnings (loss) per common share from discontinued operations (in dollars per share)	$ 0	$ 0.34
Weighted average shares outstanding
Weighted average number common shares, basic (shares)	24,940,000	24,709,000
Weighted average number common shares, diluted (shares)	29,150,000	25,675,000
Cash dividends declared per common share (usd per share)	$ 0.17	$ 0.17