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Related Party Transactions (Schedule Of Related Party Transactions) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Related Party Transaction [Line Items]  
Revenues (included in income from discontinued operations) from Telesat satellite construction contracts $ 24,156
Telesat [Member]
 
Related Party Transaction [Line Items]  
Revenues (included in income from discontinued operations) from Telesat satellite construction contracts 24,211
Milestone payments received from Telesat $ 18,579