FAIR VALUE OF FINANCIAL INSTRUMENTS - Financial Liabilities Fair Value Measurement on a Recurring Basis (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation liability	$ 1,835	$ 1,669
Interest rate swap asset	0	434
Interest rate swap liability	6,984	1,317
Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation liability	0	0
Interest rate swap asset	0	0
Interest rate swap liability	0	0
Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation liability	1,835	1,669
Interest rate swap asset	0	434
Interest rate swap liability	6,984	1,317
Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation liability	0	0
Interest rate swap asset	0	0
Interest rate swap liability	$ 0	$ 0