Income Taxes [Line Items]

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- Definition

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

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- Definition

A credit or adjustment for government or taxing authority authorized decrease in taxes owed as a result of meeting certain tax policy conditions.

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- Definition

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

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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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Income Taxes Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Taxes [Line Items]
Income tax expense	$ 53,319	$ 45,357	$ 156,029	$ 155,871
Effective income tax rate reconciliation, percent	24.90%	21.80%	25.60%	26.10%
Global Intangible Low-Taxed Income
Income Taxes [Line Items]
Income tax expense	$ 0	$ 0	$ 0	$ 0
Base Erosion and Anti-Abuse Tax
Income Taxes [Line Items]
Income tax expense	$ 0	0	$ 0	$ 0
Tax Cuts and Jobs Act
Income Taxes [Line Items]
Tax credits from withholding taxes paid on repatriated foreign earnings		7,000
State and Local Jurisdiction
Income Taxes [Line Items]
State income tax refund		$ (4,000)