Capital Assets

6 Months Ended

Mar. 30, 2019

Capital Assets [Abstract]

Capital Assets

CAPITAL ASSETS

Property and Equipment

Property and equipment, net are as follows: 

	March 30, 2019			September 29, 2018
Land and improvements	$	2,881		$	2,881
Buildings and improvements	58,692			58,880
Machinery and equipment	210,065			203,647
Assets held under capital leases	2,796			2,815
Total property and equipment	274,434			268,223
Less: Accumulated depreciation	(186,308		)	(177,954		)
Total property and equipment, net	$	88,126		$	90,269

Goodwill

Changes to the carrying amount of goodwill are as follows:  

	Test & Simulation			Sensors			Total
Balance, September 29, 2018	$	24,631		$	344,644		$	369,275
Acquisitions 1	34,387			—			34,387
Currency translation	(208		)	(29		)	(237		)
Balance, March 30, 2019	$	58,810		$	344,615		$	403,425

¹    See Note 18 for additional information regarding acquisitions.

Intangible Assets

Intangible assets are as follows: 

	March 30, 2019
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Value		Weighted Average Useful Life (in Years)
Software development costs 2	$	35,297	$	(15,859	)	$	19,438	6.3
Technology and patents	59,055		(14,110		)	44,945		14.9
Trademarks and trade names	12,697		(3,442		)	9,255		20.7
Customer lists	179,919		(28,831		)	151,088		15.7
Land-use rights	2,360		(858		)	1,502		26.2
Other	3,705		(332		)	3,373		4.0
Trade names	57,500		—			57,500		Indefinite
Total intangible assets	$	350,533	$	(63,432	)	$	287,101	14.5

	September 29, 2018
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Value		Weighted Average Useful Life (in Years)
Software development costs 2	$	31,251	$	(15,860	)	$	15,391	6.5
Technology and patents	46,405		(12,188		)	34,217		14.9
Trademarks and trade names	6,754		(2,987		)	3,767		25.4
Customer lists	156,971		(23,314		)	133,657		15.8
Land-use rights	2,336		(730		)	1,606		26.0
Trade names	57,500		—			57,500		Indefinite
Total intangible assets	$	301,217	$	(55,079	)	$	246,138	14.8

²  The gross carrying amount of software development costs as of March 30, 2019 and September 29, 2018 includes $19,438 and $15,391, respectively, of intangible assets not yet placed in service.

Amortization expense recognized related to finite-lived intangible assets is as follows:

	Three Months Ended				Six Months Ended
	March 30, 2019		March 31, 2018		March 30, 2019		March 31, 2018
Amortization expense	$	4,403	$	3,456	$	8,219	$	6,935

Estimated future amortization expense related to finite-lived intangible assets is as follows: 

	Amortization Expense
Remainder of 2019	$	8,695
2020	17,108
2021	18,164
2022	19,036
2023	18,139
2024	17,770
Thereafter	130,689

Future amortization amounts presented above are estimates. Actual future amortization expense may be different due to fluctuations in foreign currency exchange rates, future acquisitions, impairments, changes in amortization periods or other factors.