REVENUE Deferred Revenue Activity (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Movement in Deferred Revenue [Roll Forward]
Deferred revenue at beginning of period	$ 94,150	$ 98,082
Billings deferred	40,831	45,192
Recognition of prior deferred revenue	(70,500)	(62,341)
Deferred revenue at end of period	64,481	80,933
Deferred Revenue Arrangement [Line Items]
Remaining Performance Obligation	14,700
Deferred Revenue	64,481	$ 80,933
Subscription
Deferred Revenue Arrangement [Line Items]
Remaining Performance Obligation	1,672
Subscription Arrangement [Member]
Deferred Revenue Arrangement [Line Items]
Remaining Performance Obligation	14,926
Maintenance contracts
Deferred Revenue Arrangement [Line Items]
Remaining Performance Obligation	42,885
Implied PCS
Deferred Revenue Arrangement [Line Items]
Remaining Performance Obligation	3,233
Professional services, training and other
Deferred Revenue Arrangement [Line Items]
Remaining Performance Obligation	$ 1,765