Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 330
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=116847112&loc=d3e4542-108314

Name:	us-gaap_InventoryWriteDown
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Inventory (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Inventory (Details) - USD ($) $ in Thousands	Aug. 01, 2020	Aug. 03, 2019	Aug. 01, 2020	Aug. 03, 2019
Inventory [Line Items]
Decrease in inventories		$ 1,300	$ 54,308	$ 6,232
COVID-19
Inventory [Line Items]
Decrease in inventories	$ 12,300		$ 55,400