Subsequent Events (Details) - USD ($)
$ in Thousands
4 Months Ended
Dec. 31, 2017
Jan. 31, 2018
Jul. 29, 2017
Jan. 28, 2017
Subsequent Event [Line Items]        
Deferred revenue     $ 22,801 $ 29,428
Scenario, Forecast [Member]        
Subsequent Event [Line Items]        
Deferred revenue   $ 20,000    
Non-refundable payments made by Comenity Bank to Company $ 7,100