REVENUE Deferred Revenue Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2027	Dec. 31, 2026	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2019
Deferred Revenue Arrangement [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 30,400
Deferred Revenue	98,082	$ 99,258							$ 97,901
Deferred Revenue, Additions	81,517	72,633
Deferred Revenue, Revenue Recognized	(82,693)	$ (71,276)
Revenue, Remaining Performance Obligation, Amount, Installments	35,200
Subscription services
Deferred Revenue Arrangement [Line Items]
Revenue, Remaining Performance Obligation, Amount	4,568
Subscription Arrangement [Member]
Deferred Revenue Arrangement [Line Items]
Revenue, Remaining Performance Obligation, Amount	11,002
Software Service, Support and Maintenance Arrangement [Member]
Deferred Revenue Arrangement [Line Items]
Revenue, Remaining Performance Obligation, Amount	74,336
Nonsoftware Service, Support and Maintenance Arrangement [Member]
Deferred Revenue Arrangement [Line Items]
Revenue, Remaining Performance Obligation, Amount	5,761
Nonsoftware Service, Support and Maintenance Arrangement [Member] | Forecast [Member]
Deferred Revenue Arrangement [Line Items]
Revenue, Remaining Performance Obligation, Amount			$ 100	$ 300	$ 700	$ 1,000	$ 1,500	$ 2,200
Software License Arrangement [Member]
Deferred Revenue Arrangement [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 2,415