Fair Value Measurements - Additional Information (Detail) - USD ($)	1 Months Ended								12 Months Ended
	May 31, 2019	Mar. 31, 2019	May 31, 2018	Aug. 31, 2017	Jul. 31, 2017	Apr. 30, 2017	Mar. 31, 2017	Feb. 28, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Derivative Instruments Gain Loss [Line Items]
Impairment in other expense									$ 0	$ 0	$ 0
Pre-tax gain (loss) from accumulated other comprehensive loss to interest expense expected to be recognized in next twelve months									(6,000,000)
Foreign Currency Exchange Contract
Derivative Instruments Gain Loss [Line Items]
Notional amount of outstanding derivative financial instruments									125,000,000	76,000,000
Gains/(losses) on derivative financial instruments									1,000,000	$ (2,000,000)
US Dollar term loan floating-to-fixed rate swaps maturing on July 2023
Derivative Instruments Gain Loss [Line Items]
Notional amount of outstanding derivative financial instruments	$ 150,000,000								150,000,000
Interest rate swap maturity term	4 years
Variable interest rate	1.82%
US Dollar term loan floating-to-fixed rate swaps maturing on April 2023
Derivative Instruments Gain Loss [Line Items]
Notional amount of outstanding derivative financial instruments		$ 150,000,000							150,000,000
Interest rate swap maturity term		4 years
Variable interest rate		2.26%
US Dollar term loan floating-to-fixed rate swaps maturing on June 2023
Derivative Instruments Gain Loss [Line Items]
Notional amount of outstanding derivative financial instruments		$ 250,000,000							250,000,000
Interest rate swap maturity term		4 years
Variable interest rate		2.07%
US Dollar term loan floating-to-fixed rate swaps maturing on May 2023
Derivative Instruments Gain Loss [Line Items]
Notional amount of outstanding derivative financial instruments			$ 250,000,000						250,000,000
Interest rate swap maturity term			5 years
Variable interest rate			2.72%
US Dollar term loan floating-to-fixed rate swaps maturing on October 2021
Derivative Instruments Gain Loss [Line Items]
Notional amount of outstanding derivative financial instruments				$ 250,000,000					250,000,000
Interest rate swap maturity term				4 years
Variable interest rate				1.60%
US Dollar term loan floating-to-fixed rate swaps maturing on October 2020
Derivative Instruments Gain Loss [Line Items]
Notional amount of outstanding derivative financial instruments					$ 250,000,000				250,000,000
Interest rate swap maturity term					3 years
Variable interest rate					1.66%
US Dollar term loan floating-to-fixed rate swaps maturing on July 2020
Derivative Instruments Gain Loss [Line Items]
Notional amount of outstanding derivative financial instruments						$ 250,000,000			250,000,000
Interest rate swap maturity term						3 years
Variable interest rate						1.63%
US Dollar term loan floating-to-fixed rate swaps maturing on July 2022
Derivative Instruments Gain Loss [Line Items]
Notional amount of outstanding derivative financial instruments							$ 250,000,000		250,000,000
Interest rate swap maturity term							5 years
Variable interest rate							2.00%
US Dollar term loan floating-to-fixed rate swaps maturing on July 2020
Derivative Instruments Gain Loss [Line Items]
Notional amount of outstanding derivative financial instruments								$ 250,000,000	$ 250,000,000
Interest rate swap maturity term								3 years
Variable interest rate								1.73%