Restructuring (Schedule of Restructuring Reserve Activity) (Details) $ in Thousands	6 Months Ended
Mar. 28, 2020 USD ($)
Restructuring Reserve
Restructuring accrual at beginning of period	$ 4,123
Adjustments to provision	(970)
Foreign currency translation	48
Restructuring accrual at end of period	2,761
2018 Plan
Restructuring Reserve
Cash payments	(440)
Restructuring accrual at end of period	2,761
Space And Defense Controls
Restructuring Reserve
Restructuring accrual at beginning of period	27
Adjustments to provision	(1)
Foreign currency translation	0
Restructuring accrual at end of period	0
Space And Defense Controls \| 2018 Plan
Restructuring Reserve
Cash payments	(26)
Industrial Systems
Restructuring Reserve
Restructuring accrual at beginning of period	4,096
Adjustments to provision	(969)
Foreign currency translation	48
Restructuring accrual at end of period	2,761
Industrial Systems \| 2018 Plan
Restructuring Reserve
Cash payments	$ (414)

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

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Amount of expense (reversal of expense) which increases (decreases) the restructuring reserve from an adjustment to a previously accrued restructuring liability.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of foreign currency translation gain (loss) which decreases (increases) the restructuring reserve.

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