Fair Value of Financial Instruments - Hierarchy (Details) - Recurring basis - USD ($) $ in Millions		Mar. 31, 2025	Dec. 31, 2024
Assets:
Time deposits and money market funds		$ 0.4	$ 17.2
Interest rate and cross-currency swap agreements (note 17)		13.9	21.8
Forward currency contracts		3.0	6.0
Total assets recorded at fair value		17.3	45.0
Liabilities:
Contingent consideration (note 18)		17.3	17.3
Hybrid instruments liabilities (note 19)		80.2	78.1
Interest rate and cross-currency swap agreements (note 17)		$ 19.1	$ 17.2
Derivative Liability, Statement of Financial Position [Extensible Enumeration]		Other current liabilities	Other current liabilities
Forward currency contracts		$ 0.6	$ 0.5
Equity interest purchase option liability	[1]	15.3	14.9
Total liabilities recorded at fair value		132.5	128.0
Quoted Prices in Active Markets Available (Level 1)
Assets:
Time deposits and money market funds		0.4	0.4
Total assets recorded at fair value		0.4	0.4
Significant Other Observable Inputs (Level 2)
Assets:
Time deposits and money market funds		0.0	16.8
Interest rate and cross-currency swap agreements (note 17)		13.9	21.8
Forward currency contracts		3.0	6.0
Total assets recorded at fair value		16.9	44.6
Liabilities:
Interest rate and cross-currency swap agreements (note 17)		$ 19.1	$ 17.2
Derivative Liability, Statement of Financial Position [Extensible Enumeration]		Other current liabilities	Other current liabilities
Forward currency contracts		$ 0.6	$ 0.5
Total liabilities recorded at fair value		19.7	17.7
Significant Unobservable Inputs (Level 3)
Assets:
Total assets recorded at fair value		0.0	0.0
Liabilities:
Contingent consideration (note 18)		17.3	17.3
Hybrid instruments liabilities (note 19)		80.2	78.1
Equity interest purchase option liability	[1]	15.3	14.9
Total liabilities recorded at fair value		$ 112.8	$ 110.3

[1] Equity interest purchase option liability is related to NovAliX, refer to Note 4, Minority and equity-method investments, for more information.