Goodwill and Intangible Assets (Tables)

6 Months Ended

Mar. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Components of Goodwill by Business Segment

The changes in the Company’s goodwill by reportable segment since September 30, 2020 are as follows (in thousands):

	Brooks
	Semiconductor		Brooks		Brooks
	Solutions		Life Sciences		Life Sciences
	Group		Products		Services		Other		Total
Gross goodwill, at September 30, 2020	$	637,303	$	103,278	$	349,899	$	26,014	$	1,116,494
Accumulated goodwill impairments		(588,944)		—				(26,014)		(614,958)
Goodwill, net of accumulated impairments, at September 30, 2020		48,359		103,278		349,899		—		501,536
Acquisitions and adjustments		(129)		2,573		9,113		—		11,557
Gross goodwill, at March 31, 2021		637,174		105,851		359,012		26,014		1,128,051
Accumulated goodwill impairments		(588,944)		—				(26,014)		(614,958)
Goodwill, net of accumulated impairments, at March 31, 2021	$	48,230	$	105,851	$	359,012	$	—	$	513,093

Components of Identifiable Intangible Assets

The components of the Company’s identifiable intangible assets as of March 31, 2021 and September 30, 2020 are as follows (in thousands):

	March 31, 2021						September 30, 2020
			Accumulated		Net Book				Accumulated		Net Book
	Cost		Amortization		Value		Cost		Amortization		Value
Patents	$	5,302	$	4,964	$	338	$	5,302	$	4,865	$	437
Completed technology		93,228		54,599		38,629		92,477		49,875		42,602
Trademarks and trade names		26,258		11,153		15,105		25,769		9,322		16,447
Non-competition agreements		716		94		622		—		—		—
Customer relationships		281,420		126,218		155,202		271,113		112,277		158,836
Other intangibles		248		245		3		245		242		3
	$	407,172	$	197,273	$	209,899	$	394,906	$	176,581	$	218,325

Schedule of Future Amortization Expense

Estimated future amortization expense for the intangible assets for the remainder of fiscal year 2021, the subsequent four fiscal years and thereafter is as follows (in thousands):

Fiscal year ended September 30,
2021	$	19,407
2022		35,834
2023		32,545
2024		27,604
2025		22,308
Thereafter		72,201
	$	209,899