Derivative Instruments and Hedging Activities - Open Foreign Currency Contracts (Detail) - Cash Flow Hedging - Foreign exchange contracts, net - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Derivative [Line Items]
Notional Amounts (in U.S. dollars)	$ 134,354	$ 74,355
Net Unrealized Gain (Loss)	(76)	3,128
Australian Dollar
Derivative [Line Items]
Notional Amounts (in U.S. dollars)	15,971	0
Net Unrealized Gain (Loss)	(86)	0
Canadian Dollar
Derivative [Line Items]
Notional Amounts (in U.S. dollars)	101,397	55,133
Net Unrealized Gain (Loss)	(1,069)	2,564
Mexican Peso
Derivative [Line Items]
Notional Amounts (in U.S. dollars)	16,986	19,222
Net Unrealized Gain (Loss)	$ 1,079	$ 564