Business Acquisitions - Table (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012 NP Coil Dexter [Member]	Mar. 31, 2013 Socomor [Member]	Jun. 30, 2013 Tin Plating [Member]
Business Acquisition [Line Items]
Current Assets			$ 5,536
Inventory					454
Fixed Assets			1,211		270
Intangibles			3,825		830
Goodwill	58,511	59,169	1,786		277
Other Long-term Assets			783
Total Assets Acquired			13,141
Short-term Debt			(1,186)
Other Current Liabilities			(6,168)
Long-term Debt			(854)
Other Non-current Liabilities			(1,258)
Present Value of Hold-back			(927)	(100)
Business Acquisition, Purchase Price Allocation, Liabilities Assumed			(10,393)
Business Acquisition, Cost of Acquired Entity, Purchase Price			$ 2,748