Other Non-Current Obligations - Schedule of Other Non-Current Obligations (Parenthetical) (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Oct. 28, 2017	Nov. 03, 2018	Oct. 28, 2017
Other Non Current Obligations [Line Items]
Incentive payment service agreement period		5 years
Loss on extinguishment of debt	$ 4,880	$ 917	$ 4,880
Equipment Security Notes [Member]
Other Non Current Obligations [Line Items]
Loss on extinguishment of debt		200
Promissory Note [Member]
Other Non Current Obligations [Line Items]
Loss on extinguishment of debt		$ 200