Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Nov. 30, 2017	Nov. 30, 2016	Nov. 30, 2017	Nov. 30, 2016
Income Statement [Abstract]
Net Sales	$ 208,158	$ 228,116	$ 609,770	$ 679,272
Costs and Expenses
Cost of Sales	177,041	176,819	487,471	520,742
Gross Profit	31,117	51,297	122,299	158,530
Selling, General and Administrative	29,563	25,082	83,335	80,898
Operating Income (Loss)	1,554	26,215	38,964	77,632
Interest Expense	3,507	3,654	10,267	11,159
Gain (Loss) on Disposition of Property Plant Equipment	(22)	57	(576)	(26)
Other Expense (Income) - net	(7)	(759)	(486)	(949)
Income Before Income Taxes	(1,968)	23,377	28,607	67,396
Income Tax Expense	(1,802)	6,731	6,925	18,402
Net Income	$ (166)	$ 16,646	$ 21,682	$ 48,994
Earnings Per Common Share
Basic Earnings Per Share (usd per share)	$ (0.01)	$ 0.64	$ 0.83	$ 1.89
Diluted Earnings Per Share (usd per share)	(0.01)	0.64	0.83	1.88
Common Stock, Dividends, Per Share, Declared	$ 0.17	$ 0.17	$ 0.51	$ 0.47