FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Estimated fair values of Tellutax contingent consideration (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2022 USD ($) Y	Sep. 30, 2022 USD ($) Y	Dec. 31, 2021 USD ($) Y
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value adjustments to contingent consideration		$ 2,000
Purchase commitment and contingent consideration liabilities, current	$ 5,082	5,082	$ 468
Purchase commitment and contingent consideration liabilities, net of current portion	8,009	8,009	10,829
Tellutax
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Tellutax Contingent Consideration	4,500	4,500	$ 2,500
Fair value adjustments to contingent consideration	1,300	2,000
Purchase commitment and contingent consideration liabilities, current	1,400	1,400
Purchase commitment and contingent consideration liabilities, net of current portion	$ 3,100	$ 3,100
Tellutax | Revenue volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Contingent consideration measurement input	0.750	0.750	0.950
Tellutax | Revenue discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Contingent consideration measurement input	0.222	0.222	0.200
Tellutax | Term (in years)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Contingent consideration measurement input | Y	2.6	2.6	3.6