Goodwill and Intangible Assets (Tables)

3 Months Ended

Dec. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Components of Goodwill by Business Segment

The components of the Company’s goodwill by operating segment at December 31, 2017 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		(15)		39,101		—		39,086
Gross goodwill, at December 31, 2017		655,747		205,921		26,014		887,682
Accumulated goodwill impairments		(588,944)		—		(26,014)		(614,958)
Goodwill, net of accumulated impairments, at December 31, 2017	$	66,803	$	205,921	$	—	$	272,724

Components of Identifiable Intangible Assets

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

	December 31, 2017						September 30, 2017
			Accumulated		Net Book				Accumulated		Net Book
	Cost		Amortization		Value		Cost		Amortization		Value
Patents	$	9,028	$	7,806	$	1,222	$	9,028	$	7,729	$	1,299
Completed technology		67,032		55,668		11,364		61,662		54,777		6,885
Trademarks and trade names		9,405		5,241		4,164		9,244		4,969		4,275
Customer relationships		152,797		63,790		89,007		130,655		59,594		71,061
	$	238,262	$	132,505	$	105,757	$	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 and the subsequent four fiscal years is as follows (in thousands):

Fiscal year ended September 30,
2018	$	16,454
2019		20,810
2020		19,021
2021		13,240
2022		10,553
Thereafter		25,679
	$	105,757