Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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

Restructuring Charges - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Aug. 03, 2019	Aug. 03, 2019	Aug. 04, 2018	Feb. 02, 2019
Restructuring Cost And Reserve [Line Items]
Restructuring charges	$ 2,728	$ 4,272	$ 1,568
Accrued liability	4,066	4,066		$ 6,629
Accrued Compensation
Restructuring Cost And Reserve [Line Items]
Accrued liability	2,300	2,300
Other Current Liabilities
Restructuring Cost And Reserve [Line Items]
Accrued liability	$ 1,800	$ 1,800