Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Taxes [Line Items]
Income tax expense	$ 62,710	$ 53,319	$ 173,968	$ 156,029
Effective income tax rate reconciliation, percent	24.60%	24.90%	25.90%	25.60%
Base Erosion and Anti-Abuse Tax
Income Taxes [Line Items]
Income tax expense	$ 0	$ 0	$ 0	$ 0