DEBT OBLIGATIONS - Schedule of Long-term Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Less: Unamortized debt issuance costs	$ (12,437)	$ (15,073)
Net carrying amount	677,563	674,927
Less: Current installments of long-term debt	0	0
Less: Current installments of long-term debt to related party	0	(16,082)
Long-term debt, net of current portion	677,563	674,927
Convertible Notes Due 2026 \| Convertible Debt
Debt Instrument [Line Items]
Outstanding balance, gross	690,000	690,000
Related Party Debt
Debt Instrument [Line Items]
Less: Unamortized debt discount	0	(517)
Net carrying amount	0	16,082
Less: Current installments of long-term debt to related party	0	(16,082)
Long-term debt, net of current portion	0	0
Related Party Debt \| Offtake Advances
Debt Instrument [Line Items]
Outstanding balance, gross	$ 0	$ 16,599

Long-Term Debt, Current Maturities, Related Parties

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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