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RELATED-PARTY TRANSACTIONS - Additional Information (Detail) - USD ($)
$ in Thousands
6 Months Ended
Mar. 23, 2015
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Interest income   $ 913 $ 783  
Buyout provision $ 12,500      
Level III        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Due to affiliates   $ 167,659   $ 159,264
Discounted cash flow | Affiliates | Level III        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Discount rate (as a percent)   10.00%    
Minimum | Discounted cash flow | Affiliates | Level III        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Average interest rate (as a percent)   2.00%    
Maximum | Discounted cash flow | Affiliates | Level III        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Average interest rate (as a percent)   3.00%