CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Apr. 29, 2017	Apr. 30, 2016
Statement of Comprehensive Income [Abstract]
Net Income	$ 66,302	$ 77,431
Other comprehensive income:
Amortization of retirement plan and other retiree benefit adjustments (net of tax of $0 and $115, respectively)	0	186
Comprehensive income	$ 66,302	$ 77,617