Costs And Estimated Earnings On Uncompleted Contracts (Costs And Estimated Earnings On Uncompleted Contracts Accompanying Consolidated Balance Sheets) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Costs And Estimated Earnings On Uncompleted Contracts [Abstract]
Costs and estimated earnings in excess of billings on uncompleted contracts	$ 25,704	$ 27,864
Other current liabilities (Billings in excess of costs and estimated earnings on uncompleted contracts)	(7,028)	(9,242)
Costs in excess of billings on uncompleted contracts or programs	$ 18,676	$ 18,622