Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Feb. 29, 2020	Feb. 28, 2019	Feb. 28, 2018
Income Statement [Abstract]
Revenues	$ 1,061,817	$ 927,087	$ 810,430
Costs and Expenses
Cost of Goods and Services Sold	824,589	728,466	650,121
Gross profit	237,228	198,621	160,309
Selling, General and Administrative	139,253	121,665	112,061
Loss on disposal of business	(18,632)	0	0
Operating Income (Loss)	79,343	76,956	48,248
Interest Expense	13,463	14,971	13,860
Other Expense (Income) - net	990	(1,020)	3,489
Income before income taxes	64,890	63,005	30,899
Income Tax Expense	16,656	11,797	(14,270)
Net Income	$ 48,234	$ 51,208	$ 45,169
Earnings Per Common Share
Basic Earnings Per Share (usd per share)	$ 1.84	$ 1.97	$ 1.74
Diluted Earnings Per Share (usd per share)	$ 1.84	$ 1.96	$ 1.73
Weighted average number common shares (shares)	26,191,000	26,038,000	25,970,000
Weighted average number common shares and potentially dilutive common shares (shares)	26,281,000	26,107,000	26,036,000
Common Stock, Dividends, Per Share, Declared	$ 0.68	$ 0.68	$ 0.68