Consolidated Statements of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock Outstanding	Common Stock	Paid-in Capital	Retained Earnings	Cumulative Other Comprehensive Income (Loss)	Treasury Stock
Beginning Balance at Feb. 28, 2015	$ 337,267		$ 125	$ 222,438	$ 713,575	$ (9,985)	$ (588,886)
Beginning Balance, Common Stock at Feb. 28, 2015		89,912
Net income	39,634				39,634
Other comprehensive income (loss)	(652)					(652)
Purchases of treasury stock	(75,000)						(75,000)
Purchases of treasury stock (in shares)		(7,461)
Stock-based compensation expense	5,065			(8,683)			13,748
Stock-based compensation expense (in shares)		760
Exercise of stock options, stock purchase plan, and other	2,115			(2,736)			4,851
Exercise of stock options, stock purchase plan, and other (in shares)		261
Cash dividends ($0.28 per share)	(23,672)				(23,672)
Ending Balance at Feb. 27, 2016	284,757		125	211,019	729,537	(10,637)	(645,287)
Ending Balance, Common Stock at Feb. 27, 2016		83,472
Net income	30,129				30,129
Other comprehensive income (loss)	3,223					3,223
Purchases of treasury stock	(10,566)						(10,566)
Purchases of treasury stock (in shares)		(1,794)
Stock-based compensation expense	8,228			(12,077)			20,305
Stock-based compensation expense (in shares)		1,302
Exercise of stock options, stock purchase plan, and other	(1,242)			(7,441)			6,199
Exercise of stock options, stock purchase plan, and other (in shares)		202
Cash dividends ($0.28 per share)	(22,501)				(22,501)
Ending Balance at Feb. 25, 2017	292,028		125	191,501	737,165	(7,414)	(629,349)
Ending Balance, Common Stock at Feb. 25, 2017		83,182
Net income	11,626				11,626
Other comprehensive income (loss)	(63)					(63)
Purchases of treasury stock	(10,000)						(10,000)
Purchases of treasury stock (in shares)		(1,927)
Stock-based compensation expense	3,809			(19,845)			23,654
Stock-based compensation expense (in shares)		1,648
Stock purchase plan and other	2,464			(3,232)	(265)		5,961
Stock purchase plan and other (in shares)		355
Cash dividends ($0.28 per share)	(22,294)				(22,294)
Ending Balance at Mar. 03, 2018	$ 277,570		$ 125	$ 168,424	$ 726,232	$ (7,477)	$ (609,734)
Ending Balance, Common Stock at Mar. 03, 2018		83,258