Segment Reporting - Additional Information (Detail)	3 Months Ended
	Apr. 29, 2017 Store Segment Customer	Apr. 30, 2016 Customer
Segment Reporting Information [Line Items]
Number of operating segments | Segment	2
Number of reportable segment | Segment	1
Number of outlet stores	28
Number of customers accounted for more than 10% of Company's revenues | Customer	0	0
Sales [Member] | Customer Concentration Risk [Member]
Segment Reporting Information [Line Items]
Portion of specified customers portion in total revenues	10.00%	10.00%
Canada [Member]
Segment Reporting Information [Line Items]
Number of retail stores	5
Number of outlet stores	2
U.K [Member]
Segment Reporting Information [Line Items]
Number of retail stores	1