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Receivables (Tables)
12 Months Ended
Oct. 01, 2016
Receivables [Abstract]  
Schedule of Accounts, Notes, Loans and Financing Receivable

 
October 1,
2016
 
October 3,
2015
Accounts receivable
 
$
306,469

 
$
291,188

Long-term contract receivables:
 
 
 
 
Amounts billed
 
130,429

 
113,565

Unbilled recoverable costs and accrued profits
 
245,376

 
286,395

Total long-term contract receivables
 
375,805

 
399,960

Other
 
10,652

 
12,557

Total receivables
 
692,926

 
703,705

Less allowance for doubtful accounts
 
(4,538
)
 
(5,286
)
Receivables
 
$
688,388

 
$
698,419