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Trade And Unbilled Receivables, Net (Tables)
12 Months Ended
Dec. 31, 2013
Accounts Receivable, Net [Abstract]  
Schedule Of Trade And Unbilled Receivables, Net
 
December 31,
 
2013
 
2012
Receivables (1)
$
572,398

 
$
454,641

Unbilled receivables
257,964

 
242,616

Less – allowance for doubtful accounts
(7,117
)
 
(9,128
)
 
$
823,245

 
$
688,129

 
 
 
 
(1) Includes receivables due from affiliated companies
$
55,301

 
$
20,623