CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash flows from operating activities:
Net loss	$ (20,442)	$ (30,364)
Adjustments to reconcile net loss to net cash used in operating activities:
Share-based compensation expense	6,960	6,432
Foreign currency loss (gain)	535	(3,857)
Depreciation and amortization	3,275	3,092
Net change in right-of-use assets and liabilities	(36)	(24)
Amortization of interest on asset retirement obligations	48	44
Amortization of debt discount	273	266
Fair value adjustment		(54)
Gain on sale of nonfinancial assets	(29,018)
(Increase) decrease in operating assets:
Accounts receivable - related party	(1,603)	(14,137)
Prepaid expenses	530	1,235
Other current assets	626	136
Other assets, net	632
Increase (decrease) in operating liabilities:
Accounts payable	5,198	14,642
Accrued expenses	(24,231)	(11,469)
Other current liabilities	37
Deferred revenue - related party	20,475	(3,334)
Net cash used in operating activities	(36,741)	(37,392)
Cash flows from investing activities:
Purchase of property, plant and equipment	(1,678)	(8,605)
Proceeds from sale of nonfinancial assets	29,018
Net cash provided by (used in) investing activities	27,340	(8,605)
Cash flows from financing activities:
Payments of withholdings on shares withheld for income taxes	(2,221)	(1,231)
Proceeds from issuance of ordinary shares	1,586
Issuance costs in connection with ordinary shares	(635)
Net cash used in financing activities	(1,270)	(1,231)
Net decrease in cash, cash equivalents and restricted cash	(10,671)	(47,228)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	287	496
Cash, cash equivalents and restricted cash at beginning of the period	130,649	115,516
Cash, cash equivalents and restricted cash at end of the period	120,265	68,784
Supplemental disclosure of non-cash transactions:
Fixed asset acquisition included in accounts payable and accrued expenses at end of the period	1,558	3,162
Supplemental disclosure of cash flow information:
Cash paid for interest	$ 2,953	$ 1,572