Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2016	Aug. 31, 2015	Aug. 31, 2016	Aug. 31, 2015
Income Statement [Abstract]
Net Sales	$ 195,045	$ 214,246	$ 437,712	$ 443,134
Costs and Expenses
Cost of Sales	153,159	160,741	332,499	330,325
Gross Profit	41,886	53,505	105,213	112,809
Selling, General and Administrative	26,997	27,086	55,816	53,505
Operating Income (Loss)	14,889	26,419	49,397	59,304
Interest Expense	3,580	4,023	7,505	7,869
Gain (Loss) on Disposition of Property Plant Equipment	(192)	25	(82)	449
Other Expense (Income) - net	(68)	547	(190)	855
Income Before Income Taxes	11,185	21,874	42,000	51,029
Income Tax Expense	1,162	4,631	10,914	13,862
Net Income	$ 10,023	$ 17,243	$ 31,086	$ 37,167
Earnings Per Common Share
Basic Earnings Per Share (usd per share)	$ 0.39	$ 0.67	$ 1.20	$ 1.44
Diluted Earnings Per Share (usd per share)	$ 0.38	$ 0.67	$ 1.19	$ 1.44