Inventory Impairment Write-down (Details) - USD ($) $ in Thousands	3 Months Ended
May 04, 2019	May 05, 2018
Inventory Disclosure [Abstract]
Non-cash inventory impairment write-down	$ 6,050	$ 0

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://fasb.org/us-gaap/role/ref/legacyRef
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