OTHER FINANCIAL INFORMATION - Other Accrued Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accrued sales and other taxes	$ 8,805	$ 5,213
Accrued professional fees	4,502	5,912
Accrued dividends on Redeemable Series A Preferred Stock	0	3,842
Current maturities of capital lease obligations	315	429
Income taxes payable	1,546	2,245
Accrued litigation settlement costs	7,530	0
Other accrued expenses	3,426	3,513
Total other accrued liabilities	$ 26,124	$ 21,154
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Total other accrued liabilities	Total other accrued liabilities