Consolidated Statement of Shareholders' Equity (Unaudited) - 9 months ended Nov. 30, 2017 - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Capital in Excess of Par Value	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Balance at Feb. 28, 2017	$ 533,136	$ 25,964	$ 37,739	$ 498,527	$ (29,094)
Balance (shares) at Feb. 28, 2017		25,964
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Compensation (shares)		16
Stock Compensation	4,810	$ 16	4,794
Restricted Stock Units (shares)		43
Restricted Stock Units	(1,216)	$ 43	(1,259)
Stock Issued for Stock Appreciation Rights Shares		1
Stock Issued For Stock Appreciation Rights	(4)	$ 1	(5)
Employee Stock Purchase Plan (shares)		77
Employee Stock Purchase Plan	3,317	$ 77	3,240
Treasury Stock, Shares, Retired		(147)
Treasury Stock, Retired, Par Value Method, Amount	(7,518)	$ 147	7,371
Cash Dividend Paid	(13,266)			(13,266)
Net Income	21,682
Foreign Currency Translation	2,876				2,876
Interest rate swap, net of $22 income tax	(41)				(41)
Balance at Nov. 30, 2017	$ 543,776	$ 25,954	$ 37,138	$ 506,943	$ (26,259)
Balance (shares) at Nov. 30, 2017		25,954