Capital Assets (Tables)

3 Months Ended

Dec. 30, 2017

Capital Assets [Abstract]

Property and Equipment

Property and equipment, net are as follows: 

	December 30, 2017			September 30, 2017
Land and improvements	$	2,867		$	2,867
Buildings and improvements	61,119			60,340
Machinery and equipment	198,127			196,621
Assets held under capital leases	2,815			2,747
Total property and equipment	264,928			262,575
Less: Accumulated depreciation	(167,309		)	(162,645		)
Total property and equipment, net	$	97,619		$	99,930

Goodwill

Changes to the carrying amount of goodwill are as follows:  

	Test		Sensors		Total
Balance, September 30, 2017	$	25,109	$	344,653	$	369,762
Currency translation	186		11		197
Balance, December 30, 2017	$	25,295	$	344,664	$	369,959

Other Intangible Assets

Intangible assets are as follows: 

	December 30, 2017
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Value		Weighted Average Useful Life (in Years)
Software development costs	$	26,902	$	(15,859	)	$	11,043	5.9
Technology and patents	46,858		(10,229		)	36,629		14.9
Trademarks and trade names	7,007		(2,647		)	4,360		25.6
Customer lists	157,007		(15,851		)	141,156		15.8
Land-use rights	2,392		(557		)	1,835		26.5
Trade names	57,500		—			57,500		Indefinite
Total intangible assets	$	297,666	$	(45,143	)	$	252,523	14.9

	September 30, 2017
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Value		Weighted Average Useful Life (in Years)
Software development costs	$	26,083	$	(15,830	)	$	10,253	5.9
Technology and patents	46,731		(9,399		)	37,332		14.9
Trademarks and trade names	6,936		(2,484		)	4,452		25.6
Customer lists	157,016		(13,359		)	143,657		15.8
Land-use rights	2,377		(492		)	1,885		26.4
Trade names	57,500		—			57,500		Indefinite
Total intangible assets	$	296,643	$	(41,564	)	$	255,079	15.0

Amortization Expense

Amortization expense recognized is as follows:

	Three Months Ended
	December 30, 2017		December 31, 2016
Amortization expense	$	3,479	$	3,665

Estimated Future Amortization Expense on Other Intangible Assets

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

	Amortization Expense
Remainder of 2018	$	11,929
2019	15,810
2020	15,529
2021	15,529
2022	15,345
2023	13,586
Thereafter	107,295