ALLOWANCE FOR CREDIT LOSSES - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disaggregation of Revenue [Line Items]
Provision for credit losses	$ 78,337	$ 59,134	$ 11,109
Allowance for credit losses	40,216	34,092	17,122	$ 6,013
Transaction-based revenues
Disaggregation of Revenue [Line Items]
Provision for credit losses	77,100	58,000	11,100
Allowance for credit losses	$ 38,400	$ 33,500	$ 17,122