The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes.

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-Topic 805
-SubTopic 30
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No definition available.

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
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- Definition

Cash inflow representing an adjustment to the purchase price of a previous acquisition.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585

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Acquisitions - Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended
Acquisitions - Goodwill (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Sep. 30, 2019	Nov. 15, 2018	Sep. 30, 2018	Apr. 20, 2018	Apr. 06, 2018	Oct. 15, 2017	Oct. 05, 2017	Sep. 30, 2017	Jul. 05, 2017	Nov. 28, 2016
Goodwill
Goodwill		$ 488,602		$ 255,876					$ 207,154
Brooks Semiconductor Solutions Group
Goodwill
Goodwill		47,847		47,963					40,334
Brooks Life Sciences
Goodwill
Goodwill		$ 440,755		$ 207,913					$ 166,820
GENEWIZ
Goodwill
Goodwill			$ 235,160
Proceeds from settlement of business acquisition working capital adjustments	$ 300
GENEWIZ \| Brooks Life Sciences
Goodwill
Goodwill			235,200
Goodwill deductible for tax purposes			$ 0
Tec-Sem Group AG
Goodwill
Goodwill						$ 7,665
Goodwill deductible for tax purposes						0
Tec-Sem Group AG \| Brooks Semiconductor Solutions Group
Goodwill
Goodwill						$ 7,700
4titude Limited
Goodwill
Goodwill								$ 38,185
Goodwill deductible for tax purposes								$ 0
4titude Limited \| Brooks Life Sciences
Goodwill
Goodwill							$ 38,185
BioSpeciMan Corporation
Goodwill
Goodwill					$ 2,700
Goodwill deductible for tax purposes					0
BioSpeciMan Corporation \| Brooks Life Sciences
Goodwill
Goodwill					$ 2,700
PBMMI and Novare
Goodwill
Goodwill										$ 21,434
Goodwill deductible for tax purposes										$ 21,434
Cool Lab, LLC
Goodwill
Goodwill											$ 8,527
Goodwill deductible for tax purposes											$ 8,527