Accounts Payable, Accrued Expenses and Other Current Liabilities - Accounts Payable and Accrued Expenses (Detail) - USD ($) $ in Thousands	Oct. 28, 2017	Jan. 28, 2017
Payables And Accruals [Abstract]
Accounts payable	$ 130,902	$ 134,720
Accrued compensation	43,697	26,886
Accrued freight and duty	21,952	27,955
Accrued sales taxes	15,517	14,908
Accrued catalog costs	13,296	3,874
Accrued occupancy	11,422	8,137
Accrued professional fees	3,801	2,082
Other accrued expenses	11,982	8,418
Total accounts payable and accrued expenses	$ 252,569	$ 226,980