Asset Impairments and Other Charges and Discontinued Operations - Schedule of Accrued Provision for Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016	Jan. 28, 2017
Accrued Provision for Discontinued Operations
Additional provision	$ 119	$ (120)	$ 303	$ 132
Current provision for discontinued operations	2,111	13,249	2,111	13,249	$ 3,330
Total Noncurrent Provision for Discontinued Operations	1,713	$ 1,713	1,713	1,713	1,713
Facility Shutdown Costs
Accrued Provision for Discontinued Operations
Balance at beginning of period			5,043	$ 15,619	15,619
Additional provision			303		701
Charges and adjustments, net			(1,522)		(11,277)
Balance at end of period	3,824		3,824		$ 5,043
Current provision for discontinued operations	2,111		2,111
Total Noncurrent Provision for Discontinued Operations	$ 1,713		1,713
Environmental provision			3,200
Current provision for discontinued operations			$ 2,100