CAPITAL ASSETS

Property and Equipment

Property and equipment at October 1, 2016 and October 3, 2015 are as follows:



(in thousands)	2016			2015
Land and improvements	$	2,865		$	1,705
Buildings and improvements	59,350			53,097
Machinery and equipment	189,406			162,472
Total property and equipment	251,621			217,274
Less accumulated depreciation	(150,832		)	(136,820		)
Total property and equipment, net	$	100,789		$	80,454

Goodwill

Changes to the carrying amount of goodwill are as follows:



(in thousands)	Test			Sensors			Total
Balance, September 27, 2014	$	24,584		$	1,539		$	26,123
Acquisitions¹	533			—			533
Adjustment related to finalization of purchase accounting¹	1,619			—			1,619
Currency translation gain (loss)	(493		)	(105		)	(598		)
Balance, October 3, 2015	$	26,243		$	1,434		$	27,677
Acquisitions¹	—			343,242			343,242
Adjustment related to finalization of purchase accounting¹	(530		)	—			(530		)
Currency translation gain (loss)	(691		)	2			(689		)
Balance, October 1, 2016	$	25,022		$	344,678		$	369,700


¹	Refer to Note 13 for information related to acquisitions.

During the fourth quarter of fiscal years 2016 and 2015, we completed our annual goodwill impairment test with no impairments to the reporting unit carrying values identified.

Other Intangible Assets

Other intangible assets are as follows:



	October 1, 2016
(in thousands)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Value		Weighted Average Useful Life (in Years)
Software development costs	$	23,184	$	(14,938	)	$	8,246	6.0
Technology and patents	46,672		(6,360		)	40,312		14.9
Trademarks and trade names	6,903		(1,911		)	4,992		25.5
Customer lists	156,987		(3,372		)	153,615		15.8
Land-use rights	2,369		(245		)	2,124		26.3
Trademarks and trade names	57,500		—			57,500		Indefinite
Total intangible assets	$	293,615	$	(26,826	)	$	266,789	15.1
	October 3, 2015
(in thousands)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Value		Weighted Average Useful Life (in Years)
Software development costs	$	19,546	$	(14,046	)	$	5,500	6.2
Patents	11,838		(5,141		)	6,697		14.5
Trademarks and trade names	6,163		(1,659		)	4,504		29.4
Customer lists	2,561		(610		)	1,951		8.1
Land-use rights	1,227		(173		)	1,054		47.8
Total intangible assets	$	41,335	$	(21,629	)	$	19,706	13.4

Amortization expense recognized during fiscal years 2016, 2015 and 2014 was $5,517, $4,058 and $3,918, respectively.

The estimated future amortization expense related to other amortizable intangible assets for the next five fiscal years and thereafter are as follows:



Fiscal Year	Amortization Expense (in thousands)
2017	$	14,573
2018	13,712
2019	13,587
2020	13,306
2021	13,306
Thereafter	140,805

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.