DERIVATIVE INSTRUMENTS - Fair Value of Derivative Instruments By Balance Sheet Location (Details) - USD ($)	9 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Derivatives, Fair Value [Line Items]
Reduction In notional amount of interest rate derivatives In next twelve months	$ 0
Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivatives designated as hedges — Assets	2,479,000	$ 1,871,000
Interest Rate Swap
Derivatives, Fair Value [Line Items]
Notional amounts	400,000,000	150,000,000.0
Interest Rate Swap | Designated as Hedging Instrument | Prepaid expenses and other current assets
Derivatives, Fair Value [Line Items]
Derivatives designated as hedges — Assets	825,000	242,000
Interest Rate Swap | Designated as Hedging Instrument | Other assets
Derivatives, Fair Value [Line Items]
Derivatives designated as hedges — Assets	1,654,000	1,629,000
Interest Rate Swap | Designated as Hedging Instrument | Accrued expenses and other current liabilities
Derivatives, Fair Value [Line Items]
Derivatives designated as hedges — Liabilities	$ 1,184,000	$ 0