Financial Instruments - Derivative Instruments Measured at Fair Value (Detail) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Derivatives, Fair Value [Line Items]
Total Fair Value, Derivative Assets	$ 32,892
Total Fair Value, Derivative Liabilities		$ 7,415
Foreign currency contracts
Derivatives, Fair Value [Line Items]
Total Fair Value, Derivative Assets	5,224	3,575
Total Fair Value, Derivative Liabilities	5,631	3,228
Currency Swap
Derivatives, Fair Value [Line Items]
Total Fair Value, Derivative Assets	27,668
Interest rate swaps
Derivatives, Fair Value [Line Items]
Total Fair Value, Derivative Liabilities		4,187
Fair Value of Derivatives Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Total Fair Value, Derivative Assets	30,471
Total Fair Value, Derivative Liabilities		4,984
Fair Value of Derivatives Designated as Hedging Instruments [Member] | Foreign currency contracts
Derivatives, Fair Value [Line Items]
Total Fair Value, Derivative Assets	2,803	1,310
Total Fair Value, Derivative Liabilities	0	797
Fair Value of Derivatives Designated as Hedging Instruments [Member] | Interest rate swaps
Derivatives, Fair Value [Line Items]
Total Fair Value, Derivative Assets	27,668
Total Fair Value, Derivative Liabilities		4,187
Fair Value of Derivatives Not Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Total Fair Value, Derivative Assets	2,421
Total Fair Value, Derivative Liabilities		2,431
Fair Value of Derivatives Not Designated as Hedging Instruments [Member] | Foreign currency contracts
Derivatives, Fair Value [Line Items]
Total Fair Value, Derivative Assets	2,421	2,265
Total Fair Value, Derivative Liabilities	5,631	$ 2,431
Fair Value of Derivatives Not Designated as Hedging Instruments [Member] | Currency Swap
Derivatives, Fair Value [Line Items]
Total Fair Value, Derivative Assets	$ 0