INCOME TAXES - SCHEDULE OF UNRECOGNIZED TAX BENEFITS ROLL FORWARD (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at beginning of year	$ 108,383	$ 97,530
Additions for tax positions taken during prior years	10,641	9,327
Reductions for tax positions taken during prior years	(2,496)	(2,080)
Additions for tax positions taken during the current year	3,354	10,472
Settlements	0	(1,151)
Expiration of statutes of limitations	(11,339)	(5,715)
Balance at end of year	$ 108,543	$ 108,383