INCOME TAXES - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Income tax provision (benefit)	$ 18,627	$ 26,122	$ 38,200	$ 14,776
Unrecognized tax benefits including interest and penalties	48,800		48,800		$ 46,700
Unrecognized tax benefits that would reduce income tax expense	42,800		42,800		41,800
Decrease in unrecognized tax benefits is reasonably possible	1,800		1,800
Noncurrent income taxes payable, accrued interest and penalties	$ 1,500		$ 1,500		$ 1,900