DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES - Additional information (Details) $ in Thousands	3 Months Ended			12 Months Ended
	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($) item	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($) item	Nov. 30, 2019	Dec. 31, 2014 USD ($) item
Derivative [Line Items]
Acquisition, restructuring and other expenses	$ 103		$ 0
Notional amount of interest rate swap	672,077	$ 580,372		$ 580,372
Interest rate cap agreements
Derivative [Line Items]
Derivative, Number of Instruments Held | item						4
Premiums paid						$ 4,600
Cap interest rate						3.00%
Effective percentage interest rate, maximum						3.00%
Acquisition, restructuring and other expenses		$ 3,200
Interest rate swap
Derivative [Line Items]
Derivative, Number of Instruments Held | item		2		2
Term of interest rate swap				5 years
Fixed rate of interest rate swap			2.46%		1.55%
Notional amount of interest rate swap		$ 50,000		$ 50,000
Designated as hedging instrument | Cash flow hedges
Derivative [Line Items]
Notional amount of interest rate swap	100,000	100,000		100,000
Designated as hedging instrument | Cash flow hedges | Interest rate cap agreements
Derivative [Line Items]
Notional amount of interest rate swap	$ 100,000	$ 100,000		$ 100,000