DERIVATIVE FINANCIAL INSTRUMENT AND HEDGING ACTIVITY (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Apr. 30, 2020	Feb. 28, 2019
Accumulated other comprehensive loss, net of tax	$ 11,437	$ 4,871
(Losses)/gains on interest rate swap	(6,566)	(4,492)	$ (379)
Interest rate swap [Member]
Derivative liability, notional amount				$ 184,200
Accumulated other comprehensive loss, net of tax	11,400			$ 13,200
Fair value interest rate derivative liabilities	14,109	$ 6,215
Unrealized gain (loss)	9,200
(Losses)/gains on interest rate swap	(6,600)
Interest expense	3,900
Interest rate swap [Member] | Term Loan [Member]
Weighted average fixed rate (as a percent)					2.60%
Interest rate swap [Member] | Delayed Draw Term Loan [Member]
Weighted average fixed rate (as a percent)					2.47%
Interest rate swap [Member] | Senior Secured Credit Facility [Member]
Derivative liability, notional amount	$ 179,400
Debt effective interest rate (as a percent)	1.99%