DERIVATIVE INSTRUMENTS - Fair Value of Derivative Instruments By Balance Sheet Location (Details) - USD ($)	6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Derivatives, Fair Value [Line Items]
Reduction In notional amount of interest rate derivatives In next twelve months	$ 150,000,000.0
Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivatives designated as hedges — Assets	30,035,000	$ 11,769,000
Derivatives designated as hedges — Liabilities	9,545,000	15,134,000
Interest Rate Swap
Derivatives, Fair Value [Line Items]
Notional amount	1,050,000,000	1,050,000,000
Interest Rate Swap | Designated as Hedging Instrument | Prepaid expenses and other current assets
Derivatives, Fair Value [Line Items]
Derivatives designated as hedges — Assets	4,817,000	1,521,000
Interest Rate Swap | Designated as Hedging Instrument | Other assets
Derivatives, Fair Value [Line Items]
Derivatives designated as hedges — Assets	17,527,000	2,491,000
Interest Rate Swap | Designated as Hedging Instrument | Accrued expenses and other current liabilities
Derivatives, Fair Value [Line Items]
Derivatives designated as hedges — Liabilities	0	1,845,000
Interest Rate Swap | Designated as Hedging Instrument | Other liabilities
Derivatives, Fair Value [Line Items]
Derivatives designated as hedges — Liabilities	0	1,575,000
Cross-currency swap | Designated as Hedging Instrument | Prepaid expenses and other current assets
Derivatives, Fair Value [Line Items]
Derivatives designated as hedges — Assets	7,691,000	7,757,000
Cross-currency swap | Designated as Hedging Instrument | Other assets
Derivatives, Fair Value [Line Items]
Derivatives designated as hedges — Assets	0	0
Cross-currency swap | Designated as Hedging Instrument | Accrued expenses and other current liabilities
Derivatives, Fair Value [Line Items]
Derivatives designated as hedges — Liabilities	0	0
Cross-currency swap | Designated as Hedging Instrument | Other liabilities
Derivatives, Fair Value [Line Items]
Derivatives designated as hedges — Liabilities	$ 9,545,000	$ 11,714,000