REVENUE (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
Deferred revenue	$ 171,749		$ 173,167
Non-current deferred revenue	1,300		1,300
Deferred revenue recognized during period	84,700	$ 65,600
Current capitalized sales commissions	3,800		3,500
Non-current capitalized sales commissions	$ 6,800		$ 6,200