Income Taxes - Components of Pretax Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Components of income before provision for income taxes and noncontrolling interest
Domestic	$ 509.5	$ 264.6	$ 204.2
Foreign	26.8	45.5	61.0
Income before income taxes and loss from equity method investment	536.3	310.1	265.2
Current provision (benefit):
Federal	223.6	63.4	73.4
States	23.9	15.9	20.3
Foreign	36.2	48.2	(21.6)
Total current provision (benefit)	283.7	127.5	72.1
Deferred (benefit) provision:
Federal	(199.3)	(54.3)	(58.7)
States	(13.6)	(4.1)	(6.6)
Foreign	(10.3)	(11.7)	0.6
Total deferred (benefit) provision	(223.2)	(70.1)	(64.7)
Total provision for income taxes	60.5	57.4	7.4
Income tax reconciliation
Expected provision at statutory rate	112.7	65.1	55.7
State taxes, net of federal benefit	12.0	6.5	8.7
Foreign income at different tax rates	(18.1)	(0.2)	(5.9)
R&D tax credits	(23.6)	(16.6)	(16.4)
Share-based compensation	(7.4)	(2.2)	9.0
Non-deductible compensation	4.0	4.2	3.5
Temporary differences not currently benefited	0.0	0.0	(0.9)
Recognition of previously unrecognized tax benefits	(8.1)	0.0	(63.7)
Cost sharing adjustment - Altera	0.0	0.0	20.1
Other	(11.0)	0.6	(2.7)
Total provision for income taxes	$ 60.5	$ 57.4	$ 7.4