Hedging Transactions and Derivative Financial Instruments (Effect and Fair Value of Derivative Instruments) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Derivative [Line Items]
Effect of current derivative instruments	$ (3,191)	$ 200	$ 247
Contracts not designated as hedging instruments | Other income (expense), net | Foreign Currency Contracts
Derivative [Line Items]
Effect of current derivative instruments	(1,981)	(779)	(333)
Contracts not designated as hedging instruments | Other income (expense), net | Copper Derivatives Contracts
Derivative [Line Items]
Effect of current derivative instruments	3,610	(716)	(2,101)
Contract designated as hedging instrument | Other comprehensive income (loss) | Interest Rate Swap Contract
Derivative [Line Items]
Effect of current derivative instruments	$ 1,254	$ (1,715)	$ 420