Receivables (Tables)

12 Months Ended

Sep. 30, 2017

Receivables [Abstract]

Schedule of Accounts, Notes, Loans and Financing Receivable

Receivables consist of:

	September 30, 2017			October 1, 2016
Accounts receivable	$	286,773		$	306,469
Long-term contract receivables:
Amounts billed	148,087			130,429
Unbilled recoverable costs and accrued profits	282,154			245,376
Total long-term contract receivables	430,241			375,805
Other	15,077			10,652
Total receivables	732,091			692,926
Less allowance for doubtful accounts	(4,351		)	(4,538		)
Receivables	$	727,740		$	688,388