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Commitments and Contingencies - Additional Information (Details) - USD ($)
$ in Thousands
4 Months Ended 12 Months Ended
Jan. 31, 2015
Jan. 28, 2017
Jan. 30, 2016
Sep. 30, 2014
Commitments And Contingencies Disclosure [Abstract]        
Total rent expense $ 19,350 $ 56,830 $ 58,120 $ 58,682
Contingent rentals based upon a percentage of sales $ 454 $ 977 $ 1,359 $ 1,735