Long Term Debt (Detail) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Debt Instrument [Line Items]    
Long term debt $ 95,821 $ 271,384
Less: current portion (3,169) (3,617)
Long-term debt, net 92,652 267,767
Revolver borrowings    
Debt Instrument [Line Items]    
Long term debt 0 0
2014 Term Loan    
Debt Instrument [Line Items]    
Long term debt 95,352 270,000
Unamortized discount 0 8,306
Capital lease obligations    
Debt Instrument [Line Items]    
Long term debt $ 469 $ 1,384