Income Taxes - Additional Information (Detail) $ in Millions	1 Months Ended	6 Months Ended
Apr. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2019	Dec. 31, 2019 USD ($)
Income Tax Disclosure [Abstract]
Effective income tax rate		25.30%	16.40%
Tax benefit, CARES Act		$ 28.7
Tax expense, base erosion and anti-abuse tax		5.7
Total gross liability for unrecognized tax benefits		$ 47.2		$ 47.4
Tax expense, Tax Cuts and Jobs Act	$ 14.1
Effective tax rate, Tax Cuts and Jobs Act	0.005	0.010

Coronavirus Aid, Relief, and Economic Security Act, Income Tax Expense (Benefit)

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations, attributable to Tax Cuts and Jobs Act.

+ References

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Amount of income tax expense (benefit) from effect of Tax Cuts and Jobs Act.

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Amount of income tax expense from transition tax on accumulated earnings of controlled foreign corporation deemed repatriated pursuant to Tax Cuts and Jobs Act.

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Amount of unrecognized tax benefits.

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