Consolidated Statement of Shareholders' Equity (Unaudited) - 9 months ended Nov. 30, 2016 - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Capital in Excess of Par Value	Treasury Stock, Common [Member]	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Balance at Feb. 29, 2016	$ 481,216	$ 25,874	$ 35,148	$ 0	$ 450,754	$ (30,560)
Balance (shares) at Feb. 29, 2016		25,874
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Compensation (shares)		13
Stock Compensation	4,408	$ 13	4,395
Restricted Stock Units (shares)		25
Restricted Stock Units	(573)	$ 25	(598)
Stock Issued for Stock Appreciation Rights Shares		71
Stock Issued For Stock Appreciation Rights	(224)	$ 71	(295)
Employee Stock Purchase Plan (shares)		71
Employee Stock Purchase Plan	2,914	$ 71	2,843
Treasury Stock, Common, Value	(5,282)
Cash Dividend Paid	12,216				(12,216)
Net Income	49,337
Foreign Currency Translation	(235)					(235)
Interest rate swap, net of $22 income tax	(41)					(41)
Balance at Nov. 30, 2016	$ 519,304	$ 26,054	$ 41,493	$ (5,282)	$ 487,875	$ (30,836)
Balance (shares) at Nov. 30, 2016		26,054