Goodwill and Intangible Assets (Tables)

6 Months Ended

Mar. 28, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Carry Amount of Goodwill

The changes in the carrying amount of goodwill are as follows:

	Aircraft Controls		Space and Defense Controls		Industrial Systems			Total
Balance at September 28, 2019	$	176,939	$	261,684	$	345,617		$	784,240
Acquisitions	—		—		25,034			25,034
Divestitures	—		—		(635		)	(635		)
Foreign currency translation	668		11		1,036			1,715
Balance at March 28, 2020	$	177,607	$	261,695	$	371,052		$	810,354

Components of Intangible Assets

The components of intangible assets are as follows:

		March 28, 2020					September 28, 2019
	Weighted- Average Life (years)	Gross Carrying Amount		Accumulated Amortization			Gross Carrying Amount		Accumulated Amortization
Customer-related	11	$	141,843	$	(100,430	)	$	132,697	$	(100,091	)
Technology-related	9	77,471		(52,042		)	69,220		(52,192		)
Program-related	19	62,684		(37,937		)	62,015		(35,680		)
Marketing-related	8	25,222		(20,390		)	23,139		(19,899		)
Other	10	4,134		(3,813		)	4,061		(3,624		)
Intangible assets	12	$	311,354	$	(214,612	)	$	291,132	$	(211,486	)

Finite-lived Intangible Assets Amortization Expense

Amortization of acquired intangible assets is as follows:

	Three Months Ended				Six Months Ended
	March 28, 2020		March 30, 2019		March 28, 2020		March 30, 2019
Acquired intangible asset amortization	$	3,330	$	3,402	$	6,553	$	7,085

Estimated Future Amortization of Acquired Intangible Assets

Based on acquired intangible assets recorded at March 28, 2020, amortization is estimated to be approximately:

	2020		2021		2022		2023		2024
Estimated future amortization of acquired intangible assets	$	13,200	$	12,200	$	10,800	$	9,900	$	9,500