Derivatives and Hedge Accounting - Summary of Effect of Foreign Currency Exchange Contracts (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Gain recognized in consolidated statements of income	$ 4,313	$ 4,432	$ 3,752
Foreign currency exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gain recognized in AOCI	1,134	0	0
Derivatives in cash flow hedging relationships | Derivative designated as hedging instruments | Foreign currency exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gain recognized in AOCI	4,663	12,665	8,773
Fair value hedge | Gain/ (loss) on foreign currency exchange contracts | Derivative not designated as hedging instruments | Foreign currency exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gain recognized in consolidated statements of income	$ 196	$ 3,686	$ 3,208