Consolidated Statements Of Shareholders' Equity (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Mar. 04, 2017	Feb. 27, 2016	Feb. 28, 2015
Statement of Stockholders' Equity [Abstract]
Unrealized gain (loss) on marketable securities, tax	$ (45)	$ 38	$ 88
Unrealized gain (loss) on foreign currency hedge, tax	0	0	(36)
Unrealized gain (loss) on pension obligation, tax	$ 74	$ 347	$ (830)
Cash dividends per share	$ 0.515	$ 0.455	$ 0.41