Goodwill & Intangible Assets (Tables)

12 Months Ended

Sep. 28, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The following table outlines changes to the carrying amount of goodwill (in thousands):

	Goodwill
Balance at September 30, 2016	$	309,616
Translation adjustments	1,471
Balance at September 29, 2017	$	311,087
Acquired goodwill	18,394
Translation adjustments	(1,499		)
Balance at September 28, 2018	$	327,982

Schedule of Finite-Lived Intangible Assets

Intangible assets are stated at their original cost less accumulated amortization. Intangible assets subject to amortization consisted of the following (in thousands):

	September 28, 2018							September 29, 2017
Intangible Assets, Net	Cost		Accumulated Amortization			Net		Cost		Accumulated Amortization			Net
Acquired patents and technology	$	319,082	$	(152,775	)	$	166,307	$	299,707	$	(128,986	)	$	170,721
Customer relationships	58,342		(41,012		)	17,330		56,843		(38,368		)	18,475
Other intangibles	22,742		(22,360		)	382		22,742		(22,290		)	452
Total	$	400,166	$	(216,147	)	$	184,019	$	379,292	$	(189,644	)	$	189,648

Future Amortization Expense

As of September 28, 2018, expected amortization expense of our intangible assets in future periods was as follows (in thousands):

Fiscal Year	Amortization Expense
2019	$	27,696
2020	27,233
2021	27,206
2022	24,542
2023	21,198
Thereafter	56,144
Total	$	184,019