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Restructuring (Schedule of Restructuring Reserve Activity) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Restructuring Cost and Reserve
Restructuring Charges	$ 0	$ (1,549)	$ 0	$ 22,509
Restructuring Reserve
Restructuring accrual at beginning of period			8,113
Adjustments to provision			39
Foreign currency translation			(118)
Restructuring accrual at end of period	4,423		4,423
2016 Plan
Restructuring Reserve
Cash payments			(446)
2018 Plan
Restructuring Reserve
Cash payments			(3,165)
Restructuring accrual at end of period	4,423		4,423
Aircraft Controls
Restructuring Reserve
Restructuring accrual at beginning of period			626
Adjustments to provision			13
Foreign currency translation			(4)
Restructuring accrual at end of period	0		0
Aircraft Controls \| 2016 Plan
Restructuring Reserve
Cash payments			0
Aircraft Controls \| 2018 Plan
Restructuring Reserve
Cash payments			(635)
Space And Defense Controls
Restructuring Reserve
Restructuring accrual at beginning of period			64
Adjustments to provision			9
Foreign currency translation			0
Restructuring accrual at end of period	46		46
Space And Defense Controls \| 2016 Plan
Restructuring Reserve
Cash payments			0
Space And Defense Controls \| 2018 Plan
Restructuring Reserve
Cash payments			(27)
Industrial Systems
Restructuring Reserve
Restructuring accrual at beginning of period			6,994
Adjustments to provision			0
Foreign currency translation			(114)
Restructuring accrual at end of period	4,377		4,377
Industrial Systems \| 2016 Plan
Restructuring Reserve
Cash payments			0
Industrial Systems \| 2018 Plan
Restructuring Reserve
Cash payments			(2,503)
Corporate
Restructuring Reserve
Restructuring accrual at beginning of period			429
Adjustments to provision			17
Foreign currency translation			0
Restructuring accrual at end of period	$ 0		0
Corporate \| 2016 Plan
Restructuring Reserve
Cash payments			(446)
Corporate \| 2018 Plan
Restructuring Reserve
Cash payments			$ 0