COMMITMENTS AND CONTINGENCIES - Narrative (Details) $ in Millions		3 Months Ended		9 Months Ended		12 Months Ended
	Jan. 12, 2022 claim	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) claim	Sep. 30, 2021 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2021 USD ($)	Sep. 15, 2020 copyright client
Loss Contingencies [Line Items]
Employer contribution		$ 0.8	$ 0.8	$ 2.7	$ 2.5
Current carrying value of guarantor obligations		9.4		$ 9.4			$ 8.3
Oracle Litigation
Loss Contingencies [Line Items]
Number of claim found liable | claim				1
Damages awarded						$ 124.4
Payments for judgement ordered after fees and costs						$ 89.9
Injunction Proceedings
Loss Contingencies [Line Items]
Number of claims ruled in favor of defendant | claim	5
Number of claims ruled in favor of plaintiff | claim	5
Permanent injunction awarded sanctions				$ 0.6
Accrued expense		$ 6.9		6.9			$ 6.9
Amount awarded to other party				$ 0.6
Rimini II Litigation | Gap Customers
Loss Contingencies [Line Items]
Copyrights infringed | copyright								17
Rimini II Litigation | Two Specific Company Clients
Loss Contingencies [Line Items]
Copyrights infringed | copyright								4
Litigation case, number of clients | client								2