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Commitments and Contingencies (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Mar. 09, 2015
Oct. 28, 2017
Oct. 29, 2016
Oct. 28, 2017
Oct. 29, 2016
Jan. 31, 2015
Operating Leases            
Rent expense   $ 12,632 $ 11,312 $ 36,225 $ 32,847  
Loss contingency trial start date       Mar. 02, 2015    
Loss contingency trial end date       Mar. 06, 2015    
Trial award against defendants to the action $ 11,887          
Accrued amount of litigation           $ 4,000