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DEBT - Notes Payable - Summary (Detail) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Debt        
Unpaid principal balance     $ 2,159,438  
Debt issuance costs     (1,928) $ (2,541)
Carrying balance     164,163 164,462
Term Loan Agreement        
Debt        
Quarterly equal installments $ 300 $ 400 300  
Unpaid principal balance     167,327 168,431
Unamortized debt discount     (987) (1,238)
Debt issuance costs     (2,177) (2,731)
Carrying balance     $ 164,163 $ 164,462
Period for amounts drawn and repaid     60 days