Fair Value Measurements - Underlying Asset Value (Details) - USD ($) $ in Thousands	Aug. 03, 2019	Feb. 02, 2019	Aug. 04, 2018
Investment [Line Items]
Underlying assets in non-qualified deferred compensation program	$ 133,788	$ 124,558	$ 129,110
Level 1
Investment [Line Items]
Underlying assets in non-qualified deferred compensation program	126,377	114,181	117,274
Level 2
Investment [Line Items]
Underlying assets in non-qualified deferred compensation program	$ 7,411	$ 10,377	$ 11,836