Basis of Presentation (Policies)

6 Months Ended

Jun. 30, 2011

Basis of Presentation [Abstract]

Use Of Estimates

The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions, including estimates of future contract costs and earnings.  Such estimates and assumptions affect the reported amounts of assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and earnings during the current reporting period.  Management periodically assesses and evaluates the adequacy and/or deficiency of liabilities recorded for various reserves, contract risks and other uncertainties.  Actual results could differ from these estimates and assumptions.