Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Feb. 28, 2021	Feb. 29, 2020	Feb. 28, 2019
Income Statement [Abstract]
Sales	$ 838,917	$ 1,061,817	$ 927,087
Costs and Expenses
Cost of sales	650,170	824,589	728,466
Gross margin	188,747	237,228	198,621
Selling, general and administrative	107,134	139,253	121,665
Restructuring and impairment charges	19,999	18,632	0
Operating income	61,614	79,343	76,956
Interest expense	9,648	13,463	14,971
Other (income) expense, net	969	990	(1,020)
Income before income taxes	50,997	64,890	63,005
Income tax expense	11,383	16,656	11,797
Net Income	$ 39,614	$ 48,234	$ 51,208
Earnings per common share
Basic earnings per common share (usd per share)	$ 1.53	$ 1.84	$ 1.97
Diluted earnings per common share (usd per share)	$ 1.52	$ 1.84	$ 1.96
Weighted average shares outstanding
Weighted average number common shares (shares)	25,897,000	26,191,000	26,038,000
Weighted average number common shares and potentially dilutive common shares (shares)	26,045,000	26,281,000	26,107,000
Cash dividends declared per common share (usd per share)	$ 0.68	$ 0.68	$ 0.68