v3.26.1
Fair Value of Financial Instruments - Hierarchy (Details) - Recurring basis - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Assets:    
Forward currency contracts (note 17) $ 2.0 $ 2.8
Equity interest investment at fair value (note 4) 37.6  
Total assets recorded at fair value 39.6 2.8
Liabilities:    
Contingent consideration (note 18) 9.4 10.2
Hybrid instruments liabilities (note 19) 19.8 19.6
Interest rate and cross-currency swap agreements (note 17) $ 30.4 $ 37.8
Derivative Liability, Statement of Financial Position [Extensible Enumeration] Other current liabilities Other current liabilities
Forward currency contracts $ 1.3 $ 1.0
Equity interest purchase option liability (note 4) 10.8 11.0
Total liabilities recorded at fair value 71.7 79.6
Quoted Prices in Active Markets Available (Level 1)    
Assets:    
Equity interest investment at fair value (note 4) 37.6  
Total assets recorded at fair value 37.6 0.0
Significant Other Observable Inputs (Level 2)    
Assets:    
Forward currency contracts (note 17) 2.0 2.8
Total assets recorded at fair value 2.0 2.8
Liabilities:    
Interest rate and cross-currency swap agreements (note 17) $ 30.4 $ 37.8
Derivative Liability, Statement of Financial Position [Extensible Enumeration] Other current liabilities Other current liabilities
Forward currency contracts $ 1.3 $ 1.0
Total liabilities recorded at fair value 31.7 38.8
Significant Unobservable Inputs (Level 3)    
Assets:    
Total assets recorded at fair value 0.0 0.0
Liabilities:    
Contingent consideration (note 18) 9.4 10.2
Hybrid instruments liabilities (note 19) 19.8 19.6
Equity interest purchase option liability (note 4) 10.8 11.0
Total liabilities recorded at fair value $ 40.0 $ 40.8