Borrowings - Net Carrying Value (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Principal	$ 218,141	$ 238,962
Total borrowings	153,281	203,859
2021 Convertible Note Payable | Convertible Notes
Debt Instrument [Line Items]
Principal	119,289	115,815
Unamortized debt discount	(16,493)	(19,612)
Unamortized debt issuance costs	(1,593)	(1,895)
Embedded conversion feature	53	78
Total borrowings	101,256	94,386
AFG Convertible Notes | Convertible Notes | Related Party
Debt Instrument [Line Items]
Principal	19,738	17,429
Unamortized debt discount	(2,399)	(2,835)
Unamortized debt issuance costs	(677)	(800)
Embedded conversion feature	5,361	4,345
Total borrowings	22,023	18,139
Senior Secured Term Loan
Debt Instrument [Line Items]
Total borrowings	0	85,624
Senior Secured Term Loan | Secured Debt
Debt Instrument [Line Items]
Principal	0	100,000
Total borrowings	$ 0	85,624
Senior Secured Term Loan | Secured Debt | Nonrelated Party
Debt Instrument [Line Items]
Principal		100,000
Unamortized debt discount		(1,459)
Unamortized debt issuance costs		(12,917)
Total borrowings		$ 85,624