v3.25.4
Segment Information - Summary of Revenue Adjusted EBITDA and EBITDA (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure Of Operating Segments [Line Items]      
Revenue $ 862,459 $ 823,666 $ 783,348
Adjusted EBITDA 6,821 (35,325) (157,561)
Share-based compensation (13,261) (13,598) (21,446)
Restructuring costs (4,935) (8,172) (14,760)
Strategic review of Greater China business (7,547)    
Asset impairment charges and other costs related to closure of production facility   (42,110)  
Asset impairment charges and other costs related to discontinued construction of production facilities   (24,660) (201,560)
New product launch issue   (11,998)  
Closure of production facility 846    
Costs related to the YYF Transaction     (375)
Legal settlement     (9,250)
Non-controlling interests (344) (323) (186)
EBITDA (18,420) (136,186) (405,138)
Finance income 9,944 57,758 117,876
Finance expenses (87,132) (70,179) (69,029)
Depreciation and amortization (49,310) (49,966) (51,874)
Loss before tax (144,918) (198,573) (408,165)
Europe & International      
Disclosure Of Operating Segments [Line Items]      
Revenue 482,861 434,263 408,410
North America      
Disclosure Of Operating Segments [Line Items]      
Revenue 249,559 274,455 250,264
Greater China      
Disclosure Of Operating Segments [Line Items]      
Revenue 130,039 114,948 124,674
Operating Segments | Europe & International      
Disclosure Of Operating Segments [Line Items]      
Revenue 484,483 440,692 434,011
Adjusted EBITDA 88,169 56,128 28,377
Share-based compensation (1,950) (1,985) (2,378)
Restructuring costs (954) (2,410) (1,382)
Asset impairment charges and other costs related to closure of production facility   (42,110)  
Asset impairment charges and other costs related to discontinued construction of production facilities   (2,875) (158,551)
Closure of production facility 846    
EBITDA 86,111 6,748 (133,934)
Operating Segments | North America      
Disclosure Of Operating Segments [Line Items]      
Revenue 249,559 274,455 250,264
Adjusted EBITDA 1,871 5,298 (31,910)
Share-based compensation (1,333) 656 (3,820)
Restructuring costs (1,896) (1,222) (3,062)
Asset impairment charges and other costs related to discontinued construction of production facilities   3,283 (43,009)
New product launch issue   (11,998)  
Costs related to the YYF Transaction     (375)
EBITDA (1,358) (3,983) (82,176)
Operating Segments | Greater China      
Disclosure Of Operating Segments [Line Items]      
Revenue 130,039 114,948 124,855
Adjusted EBITDA 3,641 (1,645) (57,543)
Share-based compensation (1,726) (2,101) (4,608)
Restructuring costs (42) (1,940) (2,675)
Strategic review of Greater China business (7,547)    
Asset impairment charges and other costs related to discontinued construction of production facilities   (25,068)  
Non-controlling interests (344) (323) (186)
EBITDA (6,018) (31,077) (65,012)
Unallocated Amounts | Corporate      
Disclosure Of Operating Segments [Line Items]      
Adjusted EBITDA (86,860) (95,106) (96,485)
Share-based compensation (8,252) (10,168) (10,640)
Restructuring costs (2,043) (2,600) (7,641)
Legal settlement     (9,250)
EBITDA (97,155) (107,874) (124,016)
Eliminations      
Disclosure Of Operating Segments [Line Items]      
Revenue (1,622) (6,429) (25,782)
Revenue from External Customers      
Disclosure Of Operating Segments [Line Items]      
Revenue 862,459 823,666 783,348
Revenue from External Customers | Operating Segments | Europe & International      
Disclosure Of Operating Segments [Line Items]      
Revenue 482,861 434,263 408,410
Revenue from External Customers | Operating Segments | North America      
Disclosure Of Operating Segments [Line Items]      
Revenue 249,559 274,455 250,264
Revenue from External Customers | Operating Segments | Greater China      
Disclosure Of Operating Segments [Line Items]      
Revenue 130,039 114,948 124,674
Intersegment Revenue | Operating Segments | Europe & International      
Disclosure Of Operating Segments [Line Items]      
Revenue 1,622 6,429 25,601
Intersegment Revenue | Operating Segments | Greater China      
Disclosure Of Operating Segments [Line Items]      
Revenue     181
Intersegment Revenue | Eliminations      
Disclosure Of Operating Segments [Line Items]      
Revenue $ (1,622) $ (6,429) $ (25,782)