Consolidated Statement of Comprehensive Income (Loss) (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	May 30, 2014	May 31, 2013
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 43,739	$ 33,393
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	1,866	(2,155)
Pension and postretirement benefit adjustments	(23)	377
Unrealized gain on securities		1
Other comprehensive income (loss), net of tax	1,843	(1,777)
Comprehensive income	$ 45,582	$ 31,616