Asset Impairments and Other Charges and Discontinued Operations - Accrued Provision For Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Aug. 03, 2019	Aug. 04, 2018	Aug. 03, 2019	Aug. 04, 2018	Feb. 02, 2019
Accrued Provision for Discontinued Operations
Additional provision	$ 292	$ 246	$ 380	$ 277
Current provision for discontinued operations	0	57,769	0	57,769	$ 0
Total Noncurrent Provision for Discontinued Operations	0	$ 24,809	0	24,809	0
Facility Shutdown Costs
Accrued Provision for Discontinued Operations
Balance at beginning of period			2,399	$ 3,609	3,609
Additional provision			380		743
Charges and adjustments, net			(413)		(1,953)
Balance at end of period	2,366		2,366		$ 2,399
Current provision for discontinued operations	520		520
Total Noncurrent Provision for Discontinued Operations	$ 1,846		1,846
Environmental provision for discontinued operations			1,700
Current environmental provision for discontinued operations			$ 500