Related Party Transactions - Schedule of Related Party Debt Rollforward by Transaction Type (Details) - Related Party - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Notes and Loans Payable [Roll Forward]
Beginning balance	$ 4,192	$ 7,123	$ 4,279	$ 8,064
Repayment of debt, including periodic interest on debt carried at fair value	(59)	(491)	(204)	(615)
Other Adjustments	68	62	126	15
Ending balance	4,201	7,563	4,201	7,563
Notes Payable — China
Notes and Loans Payable [Roll Forward]
Beginning balance	3,682	4,215	3,775	4,382
Repayment of debt, including periodic interest on debt carried at fair value	(59)	0	(204)	(124)
Other Adjustments	62	56	114	13
Ending balance	3,685	4,271	3,685	4,271
Notes Payable on Demand — China
Notes and Loans Payable [Roll Forward]
Beginning balance	435	413	429	417
Repayment of debt, including periodic interest on debt carried at fair value	0	0	0	0
Other Adjustments	6	6	12	2
Ending balance	441	419	441	419
Other Notes
Notes and Loans Payable [Roll Forward]
Beginning balance	75	75	75	75
Repayment of debt, including periodic interest on debt carried at fair value	0	0	0	0
Other Adjustments	0	0	0	0
Ending balance	$ 75	$ 75	$ 75	$ 75