CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 29, 2016	Oct. 31, 2015	Oct. 29, 2016	Oct. 31, 2015
Condensed Consolidated Statements Of Comprehensive Income Loss
Net income (loss)	$ (38,393)	$ 1,436	$ (44,065)	$ (3,470)
Other comprehensive income (expense), net of tax postretirement plan adjustment
Comprehensive income (loss)	$ (38,393)	$ 1,436	$ (44,065)	$ (3,470)