Escrow Deposit for Acquiree's Employees Retention Obligations

No definition available.

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Namespace Prefix:	brks_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Escrow deposit for indemnification obligation of acquiree.

+ References

No definition available.

+ Details

Name:	brks_EscrowDepositForIndemnificationObligationOfAcquiree
Namespace Prefix:	brks_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Escrow deposit for payable to former owner of acquiree.

+ References

No definition available.

+ Details

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Namespace Prefix:	brks_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Escrow deposit, purchase price.

+ References

No definition available.

+ Details

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Namespace Prefix:	brks_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount in escrow reserved for potential future claims against sellers.

+ References

No definition available.

+ Details

Name:	brks_EscrowReserve
Namespace Prefix:	brks_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.10)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

Name:	us-gaap_EscrowDeposit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The increase (decrease) during the reporting period in moneys or securities given as security including, but not limited to, contract, escrow, or earnest money deposits, retainage (if applicable), deposits with clearing organizations and others, collateral, or margin deposits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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Namespace Prefix:
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- Details

Name:	us-gaap_BusinessAcquisitionAxis=brks_RuroInc.Member
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- Details

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Balance Type:
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- Details

Name:	us-gaap_BusinessAcquisitionAxis=brks_ContactCo.LtdMember
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- Details

Name:	us-gaap_BusinessAcquisitionAxis=brks_FluidXMember
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Acquisitions - Escrow (Details) - USD ($) $ in Millions	12 Months Ended
Acquisitions - Escrow (Details) - USD ($) $ in Millions	Sep. 30, 2016	Sep. 30, 2017	Aug. 22, 2017	Jul. 05, 2017	Nov. 30, 2015	Sep. 30, 2015	Aug. 14, 2015
PBMMI and Novare
Business Acquisition [Line Items]
Escrow deposit				$ 3.3
Escrow deposit for indemnification obligation		$ 2.9		2.9
Escrow deposit for payable to former owner		0.4		$ 0.4
RURO, Inc.
Business Acquisition [Line Items]
Escrow deposit			$ 0.5
BioStorage Technologies, Inc.
Business Acquisition [Line Items]
Escrow deposit		0.0			$ 5.4
Escrow deposit related to the purchase price					2.9
Escrow deposit for acquiree's employees retention obligations					$ 2.5
Contact Co., Ltd
Business Acquisition [Line Items]
Escrow deposit	$ 0.7	$ 0.7					$ 1.5
Reduction in escrow balance	$ 0.8
FluidX
Business Acquisition [Line Items]
Escrow reserve						$ 1.5