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Receivables (Tables)
12 Months Ended
Sep. 29, 2012
Receivables [Abstract]  
Schedule Of Receivables

 
September 29,
2012
 
October 1,
2011
Accounts receivable
 
$
338,000

 
$
338,381

Long-term contract receivables:
 
 
 
 
Amounts billed
 
114,482

 
94,420

Unbilled recoverable costs and accrued profits
 
286,887

 
216,667

Total long-term contract receivables
 
401,369

 
311,087

Other
 
10,936

 
11,055

Total receivables
 
750,305

 
660,523

Less allowance for doubtful accounts
 
(5,754
)
 
(4,718
)
Receivables
 
$
744,551

 
$
655,805