Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash flows from operating activities
Net loss	$ (55,287)	$ (52,543)	$ (180,029)
Adjustments for:
Share-based compensation expense	32,469	32,888	48,894
Depreciation	4,090	5,335	7,591
Unrealized foreign exchange losses (gains)	13,827	(14,482)	99
Loss on loan extinguishment	0	1,686	0
Non-cash lease expense	1,647	2,076	2,076
Other	412	(4)	222
Changes in assets and liabilities:
Increase in accounts receivable	(17,871)	(26,264)	(4,863)
Decrease (increase) in prepayments and other current assets	8,544	(14,694)	1,350
Increase in accounts payable	2,625	4,913	1,474
Increase in accrued expenses	39,088	41,757	10,681
Decrease in deferred revenue	(8,013)	(25,504)	(29,072)
Decrease in operating lease liabilities	(2,226)	(1,782)	(2,013)
(Increase) decrease in other operating assets	(15,012)	(4,729)	361
(Decrease) increase in other operating liabilities	(1,353)	2,138	123
Net cash provided by (used in) operating activities	2,940	(49,209)	(143,106)
Cash flows from investing activities
Proceeds from sale of property, plant and equipment	0	6	106
Purchase of property, plant and equipment	(5,425)	(2,203)	(1,386)
Net cash used in investing activities	(5,425)	(2,197)	(1,280)
Cash flows from financing activities
Proceeds from issue of ordinary shares, net	0	139,515	286,887
Exercise of share options	34,346	9,696	1,298
Loan repayments	0	(50,000)	0
Debt prepayments and extinguishments	0	(2,000)	0
Non-current interest-bearing loan received	0	50,000	0
Debt issuance payments	0	(1,769)	0
Net cash provided by financing activities	34,346	145,442	288,185
Increase in net cash and cash equivalents	31,861	94,036	143,799
Net foreign exchange difference on cash held	8,293	(12,646)	625
Cash and cash equivalents at beginning of year	402,472	321,082	176,658
Cash and cash equivalents at end of year	442,626	402,472	321,082
Supplemental cash flow information
Cash received (paid) for interest, net	5,674	(4,482)	(5,708)
Cash received (paid) for income taxes, net	$ (977)	$ (765)	$ 17,044