Fair Value Measurements (Various Instruments That Require Fair Value Measurement) (Detail) - Fair Value, Recurring - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency contracts	$ (78)	$ (18)
Copper derivative contracts	193	355
Interest rate swap	(18)	(144)
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency contracts	0	0
Copper derivative contracts	0	0
Interest rate swap	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency contracts	(78)	(18)
Copper derivative contracts	193	355
Interest rate swap	(18)	(144)
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency contracts	0	0
Copper derivative contracts	0	0
Interest rate swap	$ 0	$ 0