Income Taxes - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Income tax expense	$ 53.5	$ 56.3	$ 108.2	$ 90.5
Effective income tax rate (as a percent)	23.40%	24.30%	23.20%	25.10%
Income tax expense (benefits), tax credit, discrete charges	$ (2.0)	$ 1.2	$ (4.2)	$ 4.2
Income tax benefit, tax credit, discrete items purchase of discounted federal tax credits	(1.9)		(3.1)
Income tax benefit, tax credit, discrete items amended sales returns			(1.0)
Valuation allowance charges with respect to unrealizable foreign tax credits				2.5
Charge related to a valuation allowance				1.7
Unrecognized tax benefits	66.2		66.2		$ 64.3
Net unrecognized tax benefits, excluding interest and penalties that would affect the company's net income if recognized	52.4		52.4
Interest and penalties expense on unrecognized tax benefits			2.1	0.9
Accruals for payment of interest and penalties	9.9		9.9
Significant change in unrecognized tax benefits is reasonably possible, amount of unrecorded benefit	$ 23.0		23.0
Cash paid for income taxes, net of refunds			325.8	106.5
Cash paid for purchase of transferable tax credits			$ 44.3	$ 2.9