Costs And Estimated Earnings On Uncompleted Contracts (Summary Of Costs And Estimated Earnings On Uncompleted Contracts) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Costs And Estimated Earnings On Uncompleted Contracts [Abstract]
Costs incurred on uncompleted contracts	$ 113,654	$ 94,145
Estimated earnings	48,949	32,547
Billings to date	(143,323)	(108,070)
Costs and estimated earnings on uncompleted contracts	$ 19,280	$ 18,622

Amount of receivable reflecting the cost incurred on uncompleted contracts in excess of related billings.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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