Summary of Effects of Interest Rate Swap Agreements and Foreign Currency Foreign Exchange Contracts on Result of Operations (Detail) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
Derivative Instruments Gain Loss [Line Items]
Gain/(Loss) recognized in AOCI			$ (2,917)
Designated As Hedging Instrument | Cash Flow Hedging | Interest Rate Swap
Derivative Instruments Gain Loss [Line Items]
Gain/(Loss) recognized in AOCI	[1]	$ 0	(2,917)
Designated As Hedging Instrument | Net Investment Hedge | Foreign Currency Foreign Exchange Contracts
Derivative Instruments Gain Loss [Line Items]
Gain/(Loss) recognized in AOCI		$ 40,546	$ 5,221

[1] The amount of gain reclassified out of AOCI into interest expense, net was $0 and $2.9 million during the three-month periods ended March 31, 2020 and 2019, respectively.