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Income Taxes - Schedule of Tax Rate Reconciliation (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Income Tax Disclosure [Abstract]      
Federal tax provision at statutory rate $ 225.1 $ 286.0 $ 363.3
State taxes, net of federal income tax benefit 52.0 39.5 76.9
Non-deductible items 11.9 10.8 5.0
Permanent differences related to share-based compensation (0.5) 0.0 (2.4)
Net change in valuation allowance (13.3) 19.9 25.0
General business credits (22.1) (5.3) (2.6)
Foreign rate differential 2.5 3.1 1.4
Other 1.1 (3.4) 1.8
Total provision $ 256.7 $ 350.6 $ 468.4