v3.26.3
Property, Plant & Equipment - Summary of Property, Plant & Equipment (Details)
$ in Millions
 9 Months Ended
Sep. 30, 2026
USD ($)
Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization [Roll Forward]  
Property, plant, and equipment beginning balance $ 33.2
Currency translation effect (1.2)
Increase 3.3
Decrease 0.0
Property, plant, and equipment ending balance 35.4
Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization [Roll Forward]  
Accumulated amortization and depreciation, beginning of period (22.9)
Currency translation effect 0.8
Increase (1.8)
Decrease 0.0
Accumulated amortization and depreciation, end of period (23.9)
Movement In Property, Plant And Equipment, Net [Roll Forward]  
Property, plant and equipment, net, beginning of period 10.4
Currency translation effect (0.4)
Increase 1.5
Decrease 0.0
Property, plant and equipment, net, end of period 11.5
Laboratory equipment  
Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization [Roll Forward]  
Property, plant, and equipment beginning balance 27.6
Currency translation effect (0.9)
Increase 0.4
Decrease 0.0
Property, plant, and equipment ending balance 27.1
Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization [Roll Forward]  
Accumulated amortization and depreciation, beginning of period (19.6)
Currency translation effect 0.7
Increase (1.6)
Decrease 0.0
Accumulated amortization and depreciation, end of period (20.5)
Fixture and installations  
Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization [Roll Forward]  
Property, plant, and equipment beginning balance 1.5
Currency translation effect 0.0
Increase 0.0
Decrease 0.0
Property, plant, and equipment ending balance 1.4
Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization [Roll Forward]  
Accumulated amortization and depreciation, beginning of period (0.3)
Currency translation effect 0.0
Increase (0.1)
Decrease 0.0
Accumulated amortization and depreciation, end of period (0.4)
Computer equipment  
Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization [Roll Forward]  
Property, plant, and equipment beginning balance 2.0
Currency translation effect (0.1)
Increase 0.2
Decrease 0.0
Property, plant, and equipment ending balance 2.2
Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization [Roll Forward]  
Accumulated amortization and depreciation, beginning of period (1.6)
Currency translation effect 0.0
Increase (0.1)
Decrease 0.0
Accumulated amortization and depreciation, end of period (1.7)
Other property, plant and equipment  
Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization [Roll Forward]  
Property, plant, and equipment beginning balance 0.9
Currency translation effect 0.0
Increase 0.0
Decrease 0.0
Property, plant, and equipment ending balance 0.9
Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization [Roll Forward]  
Accumulated amortization and depreciation, beginning of period (1.3)
Currency translation effect 0.0
Increase 0.0
Decrease 0.0
Accumulated amortization and depreciation, end of period (1.3)
Property, plant, and equipment in progress  
Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization [Roll Forward]  
Property, plant, and equipment beginning balance 1.2
Currency translation effect (0.1)
Increase 2.7
Decrease 0.0
Property, plant, and equipment ending balance $ 3.8