Condensed Consolidated Statements of Changes in Shareholders' Equity (unaudited) - USD ($) $ in Thousands	Total	Ordinary shares	Additional paid-in capital	Treasury stock	Accumulated deficit	Accumulated other comprehensive income (loss)	Accumulated currency translation effect
Beginning balance (in shares) at Dec. 31, 2022		94,137,145
Beginning balance at Dec. 31, 2022	$ 194,453	$ 10,720	$ 458,221	$ (1,109)	$ (259,578)	$ 781	$ (14,581)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss)	(20,561)				(20,561)
Other comprehensive income (loss)	3,584					(82)	3,666
Issuance of ordinary shares (in shares)		10,174
Issuance of ordinary shares	0	$ 1	(1)
Treasury shares	(14)			(14)
Share-based payments	1,632		1,632
Other change in equity	0
Ending balance (in shares) at Mar. 31, 2023		94,147,319
Ending balance at Mar. 31, 2023	179,094	$ 10,721	459,852	(1,123)	(280,138)	698	(10,915)
Beginning balance (in shares) at Dec. 31, 2022		94,137,145
Beginning balance at Dec. 31, 2022	194,453	$ 10,720	458,221	(1,109)	(259,578)	781	(14,581)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss)	(61,540)
Ending balance (in shares) at Sep. 30, 2023		96,253,553
Ending balance at Sep. 30, 2023	143,991	$ 10,953	376,249	(1,163)	(227,676)	761	(15,132)
Beginning balance (in shares) at Mar. 31, 2023		94,147,319
Beginning balance at Mar. 31, 2023	179,094	$ 10,721	459,852	(1,123)	(280,138)	698	(10,915)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss)	(24,243)				(24,243)
Other comprehensive income (loss)	(232)					(10)	(221)
Issuance of ordinary shares (in shares)		2,103,635
Issuance of ordinary shares	7,766	$ 231	7,535
Issuance of warrants	0
Treasury shares	42			42
Share-based payments	1,814		1,814
Allocation of accumulated net losses	0		(93,441)		93,441
Ending balance (in shares) at Jun. 30, 2023		96,250,954
Ending balance at Jun. 30, 2023	164,240	$ 10,952	375,759	(1,082)	(210,940)	687	(11,136)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss)	(16,736)				(16,736)
Other comprehensive income (loss)	(3,922)					73	(3,996)
Issuance of ordinary shares (in shares)		2,599
Issuance of ordinary shares	(864)	$ 1	(864)
Issuance of warrants	0
Treasury shares	(81)			(81)
Share-based payments	1,354		1,354
Other change in equity	0
Ending balance (in shares) at Sep. 30, 2023		96,253,553
Ending balance at Sep. 30, 2023	143,991	$ 10,953	376,249	(1,163)	(227,676)	761	(15,132)
Beginning balance (in shares) at Dec. 31, 2023		96,431,770
Beginning balance at Dec. 31, 2023	140,187	$ 10,972	377,468	(1,263)	(238,862)	742	(8,871)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss)	(27,345)				(27,345)
Other comprehensive income (loss)	(3,084)					(59)	(3,026)
Issuance of ordinary shares (in shares)		2,599
Issuance of ordinary shares	0
Treasury shares	(62)			(62)
Share-based payments	1,958		1,958
Ending balance (in shares) at Mar. 31, 2024		96,434,369
Ending balance at Mar. 31, 2024	111,654	$ 10,972	379,426	(1,325)	(266,207)	683	(11,897)
Beginning balance (in shares) at Dec. 31, 2023		96,431,770
Beginning balance at Dec. 31, 2023	140,187	$ 10,972	377,468	(1,263)	(238,862)	742	(8,871)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss)	(90,903)
Ending balance (in shares) at Sep. 30, 2024		96,501,526
Ending balance at Sep. 30, 2024	54,034	$ 10,979	316,102	(1,351)	(263,332)	709	(9,073)
Beginning balance (in shares) at Mar. 31, 2024		96,434,369
Beginning balance at Mar. 31, 2024	111,654	$ 10,972	379,426	(1,325)	(266,207)	683	(11,897)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss)	(33,116)				(33,116)
Other comprehensive income (loss)	(934)					67	(1,001)
Issuance of ordinary shares (in shares)		58,709
Issuance of ordinary shares	0	$ 6	(6)
Treasury shares	(33)			(33)
Share-based payments	1,525		1,525
Allocation of accumulated net losses	0		(66,433)		66,433
Ending balance (in shares) at Jun. 30, 2024		96,493,078
Ending balance at Jun. 30, 2024	79,095	$ 10,978	314,513	(1,358)	(232,890)	750	(12,898)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss)	(30,442)				(30,442)
Other comprehensive income (loss)	3,784					(41)	3,825
Issuance of ordinary shares (in shares)		8,448
Issuance of ordinary shares	0	$ 1	(1)
Treasury shares	7			7
Share-based payments	1,590		1,590
Allocation of accumulated net losses	0
Ending balance (in shares) at Sep. 30, 2024		96,501,526
Ending balance at Sep. 30, 2024	$ 54,034	$ 10,979	$ 316,102	$ (1,351)	$ (263,332)	$ 709	$ (9,073)