Unaudited Condensed Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Ordinary Shares	Additional paid in capital	Accumulated deficit	Accumulated other comprehensive income	Treasury Stock
Beginning balance (in shares) at Dec. 31, 2023		977,151,270
Beginning balance at Dec. 31, 2023	$ 796,118	$ 6	$ 2,975,302	$ (2,195,980)	$ 37,626	$ (20,836)
Beginning balance (in shares) at Dec. 31, 2023						(4,912,200)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of ordinary shares upon vesting of restricted shares (in shares)		1,046,440
Issuance of ordinary shares upon vesting of restricted shares	0	$ 0	0
Share-based compensation	17,980		17,980
Net loss	(53,471)			(53,471)
Foreign currency translation	1,542				1,542
Ending balance (in shares) at Mar. 31, 2024		978,197,710
Ending balance at Mar. 31, 2024	762,169	$ 6	2,993,282	(2,249,451)	39,168	$ (20,836)
Ending balance (in shares) at Mar. 31, 2024						(4,912,200)
Beginning balance (in shares) at Dec. 31, 2023		977,151,270
Beginning balance at Dec. 31, 2023	796,118	$ 6	2,975,302	(2,195,980)	37,626	$ (20,836)
Beginning balance (in shares) at Dec. 31, 2023						(4,912,200)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(133,748)
Foreign currency translation	5,147
Ending balance (in shares) at Jun. 30, 2024		986,310,340
Ending balance at Jun. 30, 2024	704,179	$ 6	3,011,964	(2,329,728)	42,773	$ (20,836)
Ending balance (in shares) at Jun. 30, 2024						(4,912,200)
Beginning balance (in shares) at Mar. 31, 2024		978,197,710
Beginning balance at Mar. 31, 2024	762,169	$ 6	2,993,282	(2,249,451)	39,168	$ (20,836)
Beginning balance (in shares) at Mar. 31, 2024						(4,912,200)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of ordinary shares upon vesting of restricted shares (in shares)		8,087,630
Issuance of ordinary shares upon vesting of restricted shares	0	$ 0	0
Exercise of share options (in shares)		25,000
Exercise of share options	44	$ 0	44
Share-based compensation	18,638		18,638
Net loss	(80,277)			(80,277)
Foreign currency translation	3,605				3,605
Ending balance (in shares) at Jun. 30, 2024		986,310,340
Ending balance at Jun. 30, 2024	$ 704,179	$ 6	3,011,964	(2,329,728)	42,773	$ (20,836)
Ending balance (in shares) at Jun. 30, 2024						(4,912,200)
Beginning balance (in shares) at Dec. 31, 2024	1,077,702,540	1,082,614,740
Beginning balance at Dec. 31, 2024	$ 840,898	$ 7	3,264,295	(2,453,083)	50,515	$ (20,836)
Beginning balance (in shares) at Dec. 31, 2024	(4,912,200)					(4,912,200)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of ordinary shares upon vesting of restricted shares (in shares)		137,540
Issuance of ordinary shares upon vesting of restricted shares	$ 0	$ 0	0
Exercise of share options (in shares)		6,324,120
Exercise of share options	3,733	$ 0	3,733
Issuance cost of the follow-on public offering	(28)		(28)
Share-based compensation	15,800		15,800
Net loss	(48,438)			(48,438)
Foreign currency translation	(1,212)				(1,212)
Ending balance (in shares) at Mar. 31, 2025		1,089,076,400
Ending balance at Mar. 31, 2025	$ 810,753	$ 7	3,283,800	(2,501,521)	49,303	$ (20,836)
Ending balance (in shares) at Mar. 31, 2025						(4,912,200)
Beginning balance (in shares) at Dec. 31, 2024	1,077,702,540	1,082,614,740
Beginning balance at Dec. 31, 2024	$ 840,898	$ 7	3,264,295	(2,453,083)	50,515	$ (20,836)
Beginning balance (in shares) at Dec. 31, 2024	(4,912,200)					(4,912,200)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	$ (89,165)
Foreign currency translation	$ (4,167)
Ending balance (in shares) at Jun. 30, 2025	1,099,112,890	1,104,032,910
Ending balance at Jun. 30, 2025	$ 791,735	$ 7	3,308,491	(2,542,248)	46,348	$ (20,863)
Ending balance (in shares) at Jun. 30, 2025	(4,920,020)					(4,920,020)
Beginning balance (in shares) at Mar. 31, 2025		1,089,076,400
Beginning balance at Mar. 31, 2025	$ 810,753	$ 7	3,283,800	(2,501,521)	49,303	$ (20,836)
Beginning balance (in shares) at Mar. 31, 2025						(4,912,200)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of ordinary shares upon vesting of restricted shares (in shares)		9,698,120
Issuance of ordinary shares upon vesting of restricted shares	0	$ 0	0
Exercise of share options (in shares)		5,258,390
Exercise of share options	7,718	$ 0	7,718
Receipt of shares netted to satisfy tax withholding obligations related to share-based compensation (in shares)						(7,820)
Receipt of shares netted to satisfy tax withholding obligations related to share-based compensation	(27)					$ (27)
Share-based compensation	16,973		16,973
Net loss	(40,727)			(40,727)
Foreign currency translation	$ (2,955)				(2,955)
Ending balance (in shares) at Jun. 30, 2025	1,099,112,890	1,104,032,910
Ending balance at Jun. 30, 2025	$ 791,735	$ 7	$ 3,308,491	$ (2,542,248)	$ 46,348	$ (20,863)
Ending balance (in shares) at Jun. 30, 2025	(4,920,020)					(4,920,020)