COMMITMENTS, CONTINGENCIES AND REGULATORY MATTERS - Lease Activity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Lessee, Lease, Description [Line Items]
Cash used in operating activities for amounts included in the measurement of lease liabilities	$ 325	$ 2,375	$ 1,507	$ 5,453
Short-term (twelve months or less) lease costs	397	(940)	425	(459)
Selling, general and administrative expense
Lessee, Lease, Description [Line Items]
Operating lease costs:	697	1,118	1,631	3,210
Cost of revenue
Lessee, Lease, Description [Line Items]
Operating lease costs:	$ 0	$ 1,327	$ 265	$ 1,498