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Subsequent Events - Additional Information (Details) (USD $)
In Thousands, unless otherwise specified
 9 Months Ended 0 Months Ended 9 Months Ended 0 Months Ended 9 Months Ended 0 Months Ended
Nov. 01, 2014
Feb. 01, 2014
Nov. 01, 2014
Revolving Credit Facility
Aug. 20, 2013
Term Loan
Nov. 01, 2014
Term Loan
Aug. 20, 2013
Term Loan
London Interbank Offered Rate (LIBOR)
Nov. 01, 2014
Term Loan
London Interbank Offered Rate (LIBOR)
Nov. 01, 2014
Subsequent Event
Revolving Credit Facility
Dec. 03, 2014
Subsequent Event
Revolving Credit Facility
Dec. 03, 2014
Subsequent Event
New Term Loan
Dec. 03, 2014
Subsequent Event
New Term Loan
London Interbank Offered Rate (LIBOR)
Subsequent Event [Line Items]                      
Senior secured loan facility       $ 235,000           $ 160,000  
Senior secured loan facility outstanding 158,763 233,825     158,800            
Debt instrument issuance price, percentage of aggregate principal amount                   99.00%  
Line of Credit , Maturity Date     Aug. 20, 2018         Dec. 03, 2019   Dec. 03, 2020  
Quarterly loan principal repayment         588         400  
Debt instrument, date of first required payment         Nov. 01, 2013         May 01, 2015  
Debt instrument maturity date, end date         Aug. 20, 2019         Dec. 03, 2020  
Write-off of term loan fees                   5,700  
Debt instrument, interest rate term         The Term Loans bear interest at a rate per annum equal to the one-, two-, three-, or six-month LIBOR (or, the nine- or 12-month LIBOR), as defined in the term loan agreement, at the Company’s election, which cannot be less than 1.25%, plus an applicable margin of 6.00% and 10.75% for the $185,000 tranche and $50,000 tranche, respectively. Since LIBOR has been less than 1.25% since the inception of the Term Loans through November 1, 2014, the interest rates have been fixed at 7.25% and 12.0% on the $185,000 tranche and $50,000 tranche, respectively.         The New Term Loan bears interest at a rate per annum equal to the one-, two-, three-, or six-month LIBOR (or, the nine- or 12-month LIBOR), as defined in the term loan agreement, at the Company’s election, which cannot be less than 1.25%, plus an applicable margin of 6.00%.  
Debt instrument applicable margin       7.00%   1.50% 1.25%     6.00% 1.25%
Line of Credit Facility, Maximum Borrowing Capacity                 135,000    
Net borrowing available under revolving line of credit     $ 24,004           $ 105,000