Income Taxes - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Tax Disclosure [Abstract]
Effective tax rate (as a percent)	18.40%	9.10%	21.30%	16.90%
Benefit from tax credits	$ 3.0
Tax benefit from the release of valuation allowance in a foreign jurisdiction and reserves for uncertain tax positions		$ 9.6		$ 1.3
Effective income tax rate excluding discrete benefits (as a percent)			22.30%	21.30%
Estimated effective income tax rate			24.00%

Effective income tax rate continuing operations excluding discrete benefits.

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Estimated annual effective income tax rate continuing operations.

+ References

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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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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments.

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Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement.

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