Acquisitions Contech (Details) (Contech [Member], USD $) In Thousands, unless otherwise specified	Aug. 02, 2013
Contech [Member]
Business Acquisition [Line Items]
Net of Cash Acquired	$ 42,187
Cash Acquired Placed In Escrow	3,825
Accounts Receivable	2,126
Inventory	1,529
Prepaid Assets And Other	170
Property, Plant, and Equipment	39,956
Goodwill	1,276
Intangibles	2,898
Accounts payable and other	(5,768)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net	$ 42,187