Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Jan. 01, 2020
Income Taxes [Line Items]
Effective income tax rate	23.50%	24.50%	23.60%	24.10%
Tax benefits from employee share-based payments	$ 3,000,000		$ 6,000,000
Increase to the foreign provision			1,000,000
Provisional deferred tax - GILTI			$ 0	$ 0
Unrecognized tax benefits					$ 2,000,000
Impact of unrecognized tax benefits if recognized					$ 2,000,000
Period of expiration of the statute of limitations for certain jurisdictions			within the next twelve months
Jurisdictions statutes of limitations expiration period			12 months
Maximum
Income Taxes [Line Items]
Accrued interest and penalties	$ 1,000,000		$ 1,000,000
Foreign and U.S. state and local jurisdictions have statutes of limitations, in years			4 years
Minimum
Income Taxes [Line Items]
Foreign and U.S. state and local jurisdictions have statutes of limitations, in years			3 years