Goodwill and Intangible Assets (Tables)

3 Months Ended

Dec. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Components of Goodwill by Business Segment

The components of the Company’s goodwill by an operating segment at December 31, 2016 and September 30, 2016 are as follows (in thousands):

	Brooks Semiconductor Solutions Group			Brooks Life Science Systems		Other			Total
Gross goodwill, at September 30, 2016	$	655,781		$	135,301	$	26,014		$	817,096
Accumulated goodwill impairments	(588,944		)	—		(26,014		)	(614,958		)
Goodwill, net of accumulated impairments, at September 30, 2016	66,837			135,301		—			202,138
Acquisitions and adjustments	(78		)	8,527		—			8,449
Gross goodwill, at December 31, 2016	655,703			143,828		26,014			825,545
Accumulated goodwill impairments	(588,944		)	—		(26,014		)	(614,958		)
Goodwill, net of accumulated impairments, at December 31, 2016	$	66,759		$	143,828	$	—		$	210,587

Components of Identifiable Intangible Assets

The components of the Company’s identifiable intangible assets as of December 31, 2016 and September 30, 2016 are as follows (in thousands):

	December 31, 2016						September 30, 2016
	Cost		Accumulated Amortization		Net Book Value		Cost		Accumulated Amortization		Net Book Value
Patents	$	9,028	$	7,523	$	1,505	$	7,808	$	7,486	$	322
Completed technology	60,385		51,927		8,458		60,485		51,018		9,467
Trademarks and trade names	9,139		4,392		4,747		9,142		4,204		4,938
Customer relationships	118,422		49,700		68,722		114,263		47,147		67,116
Total intangible assets	$	196,974	$	113,542	$	83,432	$	191,698	$	109,855	$	81,843

Schedule of Future Amortization Expense

Estimated future amortization expense for the intangible assets for the remainder of fiscal year 2017 and the subsequent four fiscal years is as follows (in thousands):

Fiscal year ended September 30,
2017	$	12,424
2018	15,300
2019	15,192
2020	13,909
2021	8,226
Thereafter	18,381
	$	83,432