Summary of Significant Accounting Policies - Fair Value Measurements (Details) - Recurring basis - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	$ 1,074.0	$ 716.8
Marketable securities	74.2	50.0
Collateral for interest rate swap	5.0
Interest rate swap	1.5
Deferred consideration	7.4	14.9
Contingent consideration	58.1	75.7
Fair Value | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	1,074.0	716.8
Marketable securities	74.2	50.0
Collateral for interest rate swap	5.0
Interest rate swap	0.0
Deferred consideration	0.0	0.0
Contingent consideration	0.0	0.0
Fair Value | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0.0	0.0
Marketable securities	0.0	0.0
Collateral for interest rate swap	0.0
Interest rate swap	1.5
Deferred consideration	7.4	14.9
Contingent consideration	0.0	0.0
Fair Value | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0.0	0.0
Marketable securities	0.0	0.0
Collateral for interest rate swap	0.0
Interest rate swap	0.0
Deferred consideration	0.0	0.0
Contingent consideration	$ 58.1	$ 75.7