Consolidated Statements of Comprehensive Earnings (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2019	Sep. 01, 2018	Aug. 31, 2019	Sep. 01, 2018
Statement of Comprehensive Income [Abstract]
Net earnings	$ 19,279	$ 20,513	$ 34,722	$ 35,887
Other comprehensive earnings:
Unrealized gain (loss) on marketable securities, net of $2, ($11), $49 and ($9) of tax expense (benefit), respectively	8	(42)	189	(32)
Unrealized gain (loss) on derivative instruments, net of $25, ($17), $27 and ($109) of tax expense (benefit), respectively	84	(55)	89	(359)
Foreign currency translation adjustments	2,465	(3,383)	(95)	(3,900)
Other comprehensive earnings (loss)	2,557	(3,480)	183	(4,291)
Total comprehensive earnings	$ 21,836	$ 17,033	$ 34,905	$ 31,596