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Restructuring (Schedule of Restructuring Reserve Activity) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2018	Apr. 01, 2017	Mar. 31, 2018	Apr. 01, 2017
Restructuring Reserve
Restructuring accrual at beginning of period			$ 1,168
Charged to expense	$ 24,058	$ 0	24,058	$ 0
Restructuring accrual at end of period	10,316		10,316
2016 Plan
Restructuring Reserve
Cash payments			(428)
Restructuring accrual at end of period	740		740
2018 Plan
Restructuring Reserve
Charged to expense			31,387
Non-cash charges			(21,811)
Restructuring accrual at end of period	9,576		9,576
Aircraft Controls
Restructuring Reserve
Restructuring accrual at beginning of period			130
Restructuring accrual at end of period	0		0
Aircraft Controls | 2016 Plan
Restructuring Reserve
Cash payments			(130)
Aircraft Controls | 2018 Plan
Restructuring Reserve
Charged to expense			0
Non-cash charges			0
Industrial Systems
Restructuring Reserve
Restructuring accrual at beginning of period			0
Restructuring accrual at end of period	9,576		9,576
Industrial Systems | 2016 Plan
Restructuring Reserve
Cash payments			0
Industrial Systems | 2018 Plan
Restructuring Reserve
Charged to expense			31,387
Non-cash charges			(21,811)
Corporate
Restructuring Reserve
Restructuring accrual at beginning of period			1,038
Restructuring accrual at end of period	$ 740		740
Corporate | 2016 Plan
Restructuring Reserve
Cash payments			(298)
Corporate | 2018 Plan
Restructuring Reserve
Charged to expense			0
Non-cash charges			$ 0

X

- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3536-108585

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- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 5.P.3)
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 230
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-Section 45
-Paragraph 28
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-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

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-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 5.P.4(b))
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

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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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 5.P.4(b))
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

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-Publisher FASB
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-Topic 420
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Amount of decrease in the reserve for full or partial settlement through consideration other than cash.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 5.P.4(b)(2))
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

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-Name Accounting Standards Codification
-Topic 420
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-Section 50
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-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

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