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Billed And Unbilled Accounts Receivable (Schedule Of Accounts Receivable) (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Jun. 30, 2011
Accounts Receivable, Net [Abstract]    
Billed $ 400,698 $ 348,204
Unbilled 257,967 315,706
Total $ 649,217 $ 649,643