Other Charges, Net - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 04, 2018	Jul. 29, 2017	Aug. 04, 2018	Jul. 29, 2017
Other Charges Net Related To Proxy Solicitation And Proposed Merger And Management And Organizational Changes [Line Items]
Charges related to proxy solicitation	$ 1,256		$ 2,142
Reimbursement for amounts incurred to nominate slate of alternative directors	1,256
Charges related to Merger		$ (165)		$ 649
Charges related to management and organizational changes	$ 667	$ (6)	$ 931	$ (3)
Orchestra-Premaman S.A., and Certain Other Affiliates of Orchestra
Other Charges Net Related To Proxy Solicitation And Proposed Merger And Management And Organizational Changes [Line Items]
Termination agreement entry date			Jul. 27, 2017