Contractual interest rate for funds borrowed, under the debt agreement.

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Derivatives - Schedule of Derivative Gain (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	May 31, 2013
Derivative Instruments, Gain (Loss) [Line Items]
Derivative gain (loss)	$ 299	$ (1,242)	$ 299	$ (1,728)
Embedded derivative within 2023 Funding Agreement
Derivative Instruments, Gain (Loss) [Line Items]
Derivative gain (loss)	299	0	299	0
Compound embedded derivative within the 2013 8.00% Notes
Derivative Instruments, Gain (Loss) [Line Items]
Derivative gain (loss)	0	0	0	216
2019 Facility Agreement
Derivative Instruments, Gain (Loss) [Line Items]
Derivative gain (loss)	$ 0	$ (1,242)	$ 0	$ (1,944)
Convertible 8.00% Notes
Derivative Instruments, Gain (Loss) [Line Items]
Loan interest rate					8.00%