CASH FLOW DISCLOSURES AND NON CASH INVESTING AND FINANCING ACTIVITIES (Narrative) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Supplemental Cash Flow Elements [Abstract]
Interest paid	$ 20,052	$ 21,488
Net payments for interest rate derivatives	6,259	(1,505)
Cash paid for income taxes	$ 60	$ 233