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Income Taxes - Summary of Reconciliation of Statutory U.S. Federal Income Tax Rate to Company's Expense (Benefit) for Income Taxes (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Income Tax Disclosure [Abstract]      
Benefit for income taxes at federal statutory rate $ (150.8) $ (251.9) $ (81.8)
State income taxes, net of federal tax effect (1.3) (9.9) (18.0)
Other permanent items 4.9 11.6 6.9
Equity-based compensation 8.1 (5.6) 7.0
Other changes in tax laws and tax rulings (4.1) 4.7 37.4
Goodwill related items 113.4 232.0 0.0
Base erosion and anti-abuse tax 0.0 0.0 10.2
Foreign-derived intangible income deduction (1.9) (7.4) (7.5)
Federal tax credits (20.0) (24.3) (19.5)
Change in unrecognized tax benefits (4.1) (7.6) (13.8)
Withholding taxes and Subpart F income, net of foreign tax credits 15.2 26.7 19.3
Foreign earnings taxed at other than federal rate 5.9 6.5 5.2
Tax provision adjustments and revisions to prior years' returns 2.7 (3.2) (5.3)
Change in valuation allowances 165.4 13.4 20.7
Total expense (benefit) for income taxes $ 133.4 $ (15.0) $ (39.2)