REVENUE Deferred Revenue Activity (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Deferred Revenue Arrangement [Line Items]
Revenue, Performance Obligation, Description of Timing		P6Y
Revenue, Remaining Performance Obligation, Amount	$ 59,400
Unbilled Receivables, Not Billable	56,700
Movement in Deferred Revenue [Roll Forward]
Deferred Revenue	95,412							$ 97,901
Deferred Revenue, Additions	28,687
Deferred Revenue, Revenue Recognized	31,176
Product [Member]
Deferred Revenue Arrangement [Line Items]
Revenue, Remaining Performance Obligation, Amount	5,311
Subscription Arrangement [Member]
Deferred Revenue Arrangement [Line Items]
Revenue, Remaining Performance Obligation, Amount	1,501
Software Service, Support and Maintenance Arrangement [Member]
Deferred Revenue Arrangement [Line Items]
Revenue, Remaining Performance Obligation, Amount	73,465
Nonsoftware Service, Support and Maintenance Arrangement [Member]
Deferred Revenue Arrangement [Line Items]
Revenue, Remaining Performance Obligation, Amount	10,769
Nonsoftware Service, Support and Maintenance Arrangement [Member] | Forecast [Member]
Deferred Revenue Arrangement [Line Items]
Revenue, Remaining Performance Obligation, Amount			$ 600	$ 1,100	$ 1,900	$ 3,200	$ 3,700
Software License Arrangement [Member]
Deferred Revenue Arrangement [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 4,366