XML 67 R48.htm IDEA: XBRL DOCUMENT v3.7.0.1
Acquisition of Trade Secret - Additional Information (Detail)
$ in Thousands, AUD in Millions
 12 Months Ended
Oct. 24, 2015
USD ($)
Store
Oct. 24, 2015
AUD
Jan. 28, 2017
USD ($)
Jan. 30, 2016
USD ($)
Jan. 31, 2015
USD ($)
Feb. 01, 2014
USD ($)
Business Acquisition [Line Items]            
Acquisition of Trade Secret, net of cash received     $ 2,324 $ 57,104    
Goodwill acquired     $ 195,871 $ 193,911 $ 169,022 $ 169,273
Trade Secret            
Business Acquisition [Line Items]            
Business acquisition, date of acquisition Oct. 24, 2015 Oct. 24, 2015        
Business acquisition, number of operating stores acquired | Store 35          
Acquisition of Trade Secret, net of cash received $ 59,400 AUD 83.3        
Identifiable amortizable intangible assets $ 12,000          
Identifiable intangible assets, amortization period 7 years 7 years        
Goodwill acquired $ 25,000