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Income Taxes - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Effective income tax rate	25.50%	25.60%	25.80%	26.40%
U.S. corporate tax rate	21.00%		21.00%
Deferred tax assets, valuation allowance	$ 32.0		$ 32.0
Liability for income taxes associated with uncertain tax positions	17.6		17.6		$ 16.4
Decrease in uncertain tax positions during the next twelve months	$ 0.2		$ 0.2

X

- Definition

Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit.

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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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 domestic federal statutory tax rate applicable to pretax income (loss).

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Amount recognized for uncertainty in income taxes classified as current.

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