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Stock Based Compensation - Rollforward of Outstanding Restricted Stock Units (Details) (Restricted Stock Units)
6 Months Ended
Aug. 02, 2014
Restricted Stock Units
 
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Beginning balance 1,193,747
Forfeiture 8,037
Vesting in connection with initial public offering 297,401
Ending balance 888,309