SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Prepaid expenses and other current assets:
Prepaid expenses	$ 10,666	$ 8,903
Prepaid Insurance	1,954	3,348
Prepaid licenses and support	9,874	8,285
Prepaid expenses and other current assets	22,494	20,536
Accrued expenses:
Accrued general expenses	16,059	10,771
Accrued professional fees	10,654	9,688
Accrued income and other taxes	2,195	2,507
Accrued expenses	$ 28,908	$ 22,966