Goodwill and Intangible Assets (Tables)

9 Months Ended

Jun. 30, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Components of Goodwill by Business Segment

The components of the Company’s goodwill by operating segment at June 30, 2018 and September 30, 2017 are as follows (in thousands):

	Brooks
	Semiconductor
	Solutions		Brooks
	Group		Life Sciences		Other		Total
Gross goodwill, at September 30, 2017	$	655,762	$	166,820	$	26,014	$	848,596
Accumulated goodwill impairments		(588,944)		—		(26,014)		(614,958)
Goodwill, net of accumulated impairments, at September 30, 2017		66,818		166,820		—		233,638
Acquisitions and adjustments		7,395		41,172		—		48,567
Gross goodwill, at June 30, 2018		663,157		207,992		26,014		897,163
Accumulated goodwill impairments		(588,944)		—		(26,014)		(614,958)
Goodwill, net of accumulated impairments, at June 30, 2018	$	74,213	$	207,992	$	—	$	282,205

Components of Identifiable Intangible Assets

The components of the Company’s identifiable intangible assets as of June 30, 2018 and September 30, 2017 are as follows (in thousands):

	June 30, 2018						September 30, 2017
			Accumulated		Net Book				Accumulated		Net Book
	Cost		Amortization		Value		Cost		Amortization		Value
Patents	$	9,028	$	7,960	$	1,068	$	9,028	$	7,729	$	1,299
Completed technology		74,747		57,734		17,013		61,662		54,777		6,885
Trademarks and trade names		9,404		5,785		3,619		9,244		4,969		4,275
Customer relationships		157,211		72,716		84,495		130,655		59,594		71,061
	$	250,390	$	144,195	$	106,195	$	210,589	$	127,069	$	83,520

Schedule of Future Amortization Expense

Estimated future amortization expense for the intangible assets for the remainder of fiscal year 2018, the subsequent four fiscal years and thereafter is as follows (in thousands):

Fiscal year ended September 30,
2018	$	6,141
2019		23,373
2020		20,849
2021		14,745
2022		11,842
Thereafter		29,245
	$	106,195