Fair Value Measurements (Various Instruments That Require Fair Value Measurement) (Details) (Fair Value, Measurements, Recurring [Member], USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency contracts	$ 473	$ (18)
Copper derivative contracts	290	355
Interest rate swap	(128)	(144)
Level 1 [Member]
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 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency contracts	473	(18)
Copper derivative contracts	290	355
Interest rate swap	(128)	(144)
Level 3 [Member]
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