Goodwill and Intangible Assets (Tables)

6 Months Ended

Mar. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Components of Goodwill by Business Segment

The components of the Company’s goodwill by an operating segment at March 31, 2017 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	(48		)	8,527		—			8,479
Gross goodwill, at March 31, 2017	655,733			143,828		26,014			825,575
Accumulated goodwill impairments	(588,944		)	—		(26,014		)	(614,958		)
Goodwill, net of accumulated impairments, at March 31, 2017	$	66,789		$	143,828	$	—		$	210,617

Components of Identifiable Intangible Assets

The components of the Company’s identifiable intangible assets as of March 31, 2017 and September 30, 2016 are as follows (in thousands):

	March 31, 2017						September 30, 2016
	Cost		Accumulated Amortization		Net Book Value		Cost		Accumulated Amortization		Net Book Value
Patents	$	9,028	$	7,629	$	1,399	$	7,808	$	7,486	$	322
Completed technology	60,428		52,902		7,526		60,485		51,018		9,467
Trademarks and trade names	9,140		4,584		4,556		9,142		4,204		4,938
Customer relationships	118,929		53,035		65,894		114,263		47,147		67,116
Total intangible assets	$	197,525	$	118,150	$	79,375	$	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	$	8,297
2018	15,589
2019	15,415
2020	14,087
2021	8,245
Thereafter	17,742
	$	79,375