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Debt - Additional Information (Details)
3 Months Ended
Mar. 31, 2017
USD ($)
Mar. 31, 2016
USD ($)
Dec. 15, 2016
USD ($)
Debt Instrument [Line Items]      
Loss on early extinguishment of debt   $ 136,000  
Mandatory principal payments $ 0    
2013 Senior Secured Credit Facility      
Debt Instrument [Line Items]      
Excess cash flow payment   12,727,000  
2016 Senior Secured Credit Facility      
Debt Instrument [Line Items]      
Debt instrument, interest rate 3.90%    
Mandatory principal payments $ 588,000    
Optional prepayment 0    
Term loans outstanding, net of unamortized discount and issuance costs $ 230,360,000    
2016 Senior Secured Credit Facility | Maximum      
Debt Instrument [Line Items]      
Leverage ratio under debt covenant 2.75    
2013 Senior Secured Credit Facility | 2013 Senior Secured Credit Facility      
Debt Instrument [Line Items]      
Loss on early extinguishment of debt   $ 136,000  
Term loan | 2016 Senior Secured Credit Facility      
Debt Instrument [Line Items]      
Credit facility, borrowing capacity     $ 235,000,000
Revolving loan facility | 2016 Senior Secured Credit Facility      
Debt Instrument [Line Items]      
Credit facility, borrowing capacity     $ 10,000,000
Revolving loan facility commitment fee on average daily amount of unused portion 0.50%    
LIBOR loans | 2016 Senior Secured Credit Facility | London Interbank Offered Rate (LIBOR)      
Debt Instrument [Line Items]      
Variable interest rate floor 0.75%    
LIBOR loans | 2016 Senior Secured Credit Facility | London Interbank Offered Rate (LIBOR) | Maximum      
Debt Instrument [Line Items]      
Basis spread on variable rate 2.75%