Consolidated Statement of Shareholders Equity (unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Common Stock Held In Trust [Member]	Deferred Compensation Obligation [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Beginning balance (in shares) at Feb. 28, 2015	29,050
Beginning balance at Feb. 28, 2015		$ 9,683	$ 138,575	$ 256,538	$ (801)	$ 801	$ (22,320)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	$ 12,126			12,126
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	$ (64)						(64)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent						0	(3,011)
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures	83
Adjustment to Additional Paid in Capital, Income Tax Effect from Share-based Compensation, Net			3,658
Outstanding shares awards exercised	160
Stock Issued During Period, Value, Stock Options Exercised		53	1,285
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures		28	(13)		(9)	9
Stock Repurchased and Retired During Period, Shares	(65)
Stock Repurchased and Retired During Period, Value		(21)	(316)	(3,122)
Dividends, Common Stock, Cash				(3,215)
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition			1,040
Ending balance at May. 30, 2015		9,743	144,229	262,327	(810)	810	(25,395)
Ending balance (in shares) at May. 30, 2015	29,228
Beginning balance (in shares) at Feb. 27, 2016	28,684
Beginning balance at Feb. 27, 2016	$ 406,195	9,561	145,528	282,477	(837)	837	(31,371)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	17,722			17,722
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	$ (14)						(14)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent						0	2,893
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures	126
Adjustment to Additional Paid in Capital, Income Tax Effect from Share-based Compensation, Net			188
Outstanding shares awards exercised	9
Stock Issued During Period, Value, Stock Options Exercised		3	62
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures		42	(3)		(6)	6
Stock Repurchased and Retired During Period, Shares	(30)
Stock Repurchased and Retired During Period, Value		(10)	(155)	(1,137)
Dividends, Common Stock, Cash				(3,560)
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition			1,390
Ending balance at May. 28, 2016	$ 423,616	$ 9,596	$ 147,010	$ 295,502	$ (843)	$ 843	$ (28,492)
Ending balance (in shares) at May. 28, 2016	28,789