Fair Value Measurements - Fair Value of Financial Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Assets:
Cross-currency swap derivative contract	$ 5.9	$ 0.0
Investments in rabbi trust	24.2
Liabilities:
Contingent consideration	0.3	$ 3.8
Derivative Liability, Statement of Financial Position [Extensible Enumeration]		Other long-term liabilities
Cross-currency swap derivative contract		$ 3.3
Cross-currency swap derivative contract
Assets:
Cross-currency swap derivative contract	5.9
Carrying Amount
Assets:
Investments in rabbi trust	24.2	0.0
Liabilities:
Contingent consideration	0.3	3.8
Other debt	788.6	911.2
Carrying Amount | Convertible senior notes due 2028
Liabilities:
Convertible senior notes	489.7	486.9
Carrying Amount | Convertible senior notes due 2025
Liabilities:
Convertible senior notes	116.0	115.3
Carrying Amount | Cross-currency swap derivative contract
Assets:
Cross-currency swap derivative contract	5.9	0.0
Liabilities:
Cross-currency swap derivative contract	0.0	3.3
Fair Value
Assets:
Investments in rabbi trust	24.2	0.0
Liabilities:
Contingent consideration	0.3	3.8
Other debt	788.6	911.2
Fair Value | Convertible senior notes due 2028
Liabilities:
Convertible senior notes	450.0	455.7
Fair Value | Convertible senior notes due 2025
Liabilities:
Convertible senior notes	125.4	145.1
Fair Value | Cross-currency swap derivative contract
Assets:
Cross-currency swap derivative contract	5.9	0.0
Liabilities:
Cross-currency swap derivative contract	$ 0.0	$ 3.3