Revenue (Significant Changes in Contact Assets and Liabilities) (Details) $ in Thousands	3 Months Ended
Dec. 29, 2018 USD ($)
Change in Contract with Customer, Asset [Abstract]
Balance, September 29, 2018	$ 70,474
Cumulative transition adjustment upon adoption	(8,002)
Changes in estimated stage of completion	33,096
Transfers to accounts receivable, net	(36,642)
Acquisitions	749
Other	981
Balance, December 29, 2018	60,656
Change in Contract with Customer, Liability [Abstract]
Balance, September 29, 2018	80,131
Cumulative transition adjustment upon adoption	20,557
Revenue recognized included in balance at beginning of period	(40,511)
Increases due to payments received, excluding amounts recognized as revenue during period	43,383
Acquisitions	5,561
Other	104
Balance, December 29, 2018	$ 109,225

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Amount of change in Contract with Customer, Asset due to currency translation and other.

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Amount of increase (decrease) in Contract with Customer, Liability, due to payments received, excluding amounts recognized as revenue during the period

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Amount of increase (decrease) in revenue recognized for cumulative catch-up adjustment from change in measure of progress which increases (decreases) right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

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Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

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