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DERIVATIVE FINANCIAL INSTRUMENTS - Interest Rate Swaps (Details)
$ in Thousands
12 Months Ended
Mar. 12, 2018
USD ($)
item
Dec. 31, 2019
USD ($)
item
Dec. 31, 2018
USD ($)
Derivatives      
Number of swap agreements that provide for the entity or the counterparties to post collateral | item   0  
Forward starting fixed to 1-month floating LIBOR (with floor)      
Derivatives      
Term of derivative contract   1 year  
Interest rate swaps      
Derivatives      
Total fair value, derivative asset (liability)   $ (27,525) $ (2,658)
Cash flow hedges | Interest rate swaps      
Derivatives      
Derivative, Notional Amount $ 500,000    
Notional amount     500,000
Term of derivative contract   5 years  
Number of new counterparties | item 5    
De-designated Hedges | Interest rate swaps      
Derivatives      
Loss recognized as an increase to interest expense     2,500
Prepaid expense and other current assets | Cash flow hedges | Fixed to 1-month floating LIBOR (with floor)      
Derivatives      
Derivative, Notional Amount   $ 705,000  
Prepaid expenses and other current assets   (2,565)  
Other Assets. | Cash flow hedges | Fixed to 1-month floating LIBOR (with floor)      
Derivatives      
Derivative, Notional Amount     650,000
Other assets     2,465
Other Assets. | Cash flow hedges | Forward starting fixed to 1-month floating LIBOR (with floor)      
Derivatives      
Derivative, Notional Amount     500,000
Other assets     (5,698)
Accrued Expense | Cash flow hedges | Fixed to 1-month floating LIBOR (with floor)      
Derivatives      
Derivative, Notional Amount     705,000
Accrued expense     1,524
Other long-term liabilities | Cash flow hedges | Fixed to 1-month floating LIBOR (with floor)      
Derivatives      
Derivative, Notional Amount   500,000  
Other long-term liabilities   (18,303)  
Other long-term liabilities | Cash flow hedges | Forward starting fixed to 1-month floating LIBOR (with floor)      
Derivatives      
Derivative, Notional Amount   705,000  
Other long-term liabilities   $ (6,657)  
Other long-term liabilities | Cash flow hedges | Forward starting fixed to 1-month floating LIBOR (with floor)      
Derivatives      
Derivative, Notional Amount     705,000
Other long-term liabilities     $ (949)