SHARE-BASED COMPENSATION - RSU Plan During Current Period (Details) - RSUs - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Changes in RSUs [Roll Forward]
RSUs outstanding beginning (in shares)	5,539
RSUs issued (in shares)	3,513	3,793	1,955
RSUs released (in shares)	(1,477)	(1,712)	(1,456)
RSUs forfeited (in shares)	(233)	(403)	(323)
RSUs outstanding ending (in shares)	7,342	5,539
RSU weighted average purchase price (in dollars per share)	$ 0
RSU weighted average remaining contractual terms	1 year 3 months 18 days
RSU aggregate intrinsic value	$ 18,028
RSU vested Number of Restricted Stock Units (in shares)	7,342
RSU vested and expected to vest weighted average purchase price (in dollars per share)	$ 0
RSU vested and expected to vest weighted average remaining contractual term	1 year 3 months 18 days
RSUs vested and expected to vest aggregate intrinsic value	$ 18,028
RSU Options Exercisable (in shares)	5
RSU options weighted average purchase price exercisable (in dollars per share)	$ 0
RSU options weighted average remaining recognition period	0 years
RSU exercisable aggregate intrinsic value.	$ 13
Weighted average remaining recognition period in years	2 years
Unamortized compensation expense	$ 17,218