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DERIVATIVES AND FAIR VALUE MEASUREMENTS Narrative 2 (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Loss to be reclassified during next 12 months	$ (5,400)
Interest rate swaps \| Cash Flow Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount of forward-starting interest rate swaps		$ 250,000
Other Current Liabilities [Member] \| Interest rate swaps \| Fair Value, Inputs, Level 2 [Member] \| Designated as Hedging Instruments
Derivative Instruments, Gain (Loss) [Line Items]
Liability derivatives		$ (19,200)