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Balance sheet information - Intangible Assets (Details) - USD ($)
$ in Thousands
 3 Months Ended
Apr. 01, 2023
Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]    
Carrying amount $ 815,322 $ 938,322
Total accumulated amortization (298,194) (297,204)
Intangible assets, net before currency translation 517,128 641,118
Currency translation (1,089) (1,267)
Intangible assets, net 516,039 639,851
Intellectual Property    
Finite-Lived Intangible Assets [Line Items]    
Carrying amount 676,549 790,049
Total accumulated amortization (188,094) (187,767)
Intellectual Property | Discontinued Operations, Held-for-sale    
Finite-Lived Intangible Assets [Line Items]    
Intangible assets, net 23,458  
Impairment of intangible assets 78,615  
Intellectual Property | Discontinued Operations, Held-for-sale | CartiHeal Ltd    
Finite-Lived Intangible Assets [Line Items]    
Total accumulated amortization   (11,327)
Intangible assets, net   410,200
Distribution rights    
Finite-Lived Intangible Assets [Line Items]    
Carrying amount 61,325 61,325
Total accumulated amortization (45,563) (44,319)
Customer relationships    
Finite-Lived Intangible Assets [Line Items]    
Carrying amount 57,950 67,450
Total accumulated amortization (57,950) (58,842)
Customer relationships | Discontinued Operations, Held-for-sale    
Finite-Lived Intangible Assets [Line Items]    
Intangible assets, net 8,377  
IPR&D    
Finite-Lived Intangible Assets [Line Items]    
Carrying amount 5,500 5,500
Developed technology and other    
Finite-Lived Intangible Assets [Line Items]    
Carrying amount 13,998 13,998
Total accumulated amortization $ (6,587) $ (6,276)