Significant Accounting Policies - Computer Software (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Implementation costs	$ 40.1	$ 36.9
Amortization of cloud computing arrangements	7.2	6.2	$ 3.4
Other Prepaid Expense, Current
Finite-Lived Intangible Assets [Line Items]
Implementation costs	5.2	13.7
Other Noncurrent Assets
Finite-Lived Intangible Assets [Line Items]
Implementation costs	$ 34.9	$ 23.2
Minimum | Computer software
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	3 years
Maximum | Computer software
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	8 years