Subsequent Events - Senior Secured Term Loan Facility - Additional Information (Details) - Secured Debt - Line of Credit - Senior Secured Term Loan Facility - Subsequent Event	Oct. 04, 2017
Subsequent Event [Line Items]
Installment payment percentage (as a percent)	0.25%
Premium percentage during first six months of loan term (as a percent)	1.00%
Prepayment percentage (as a percent)	50.00%
Interest rate above applicable rate (as a percent)	2.00%

Debt Instrument, Events of Default, Unpaid Amounts, Interest Rate Above Applicable Rate.

No definition available.

Name:	brks_DebtInstrumentEventsOfDefaultUnpaidAmountsInterestRateAboveApplicableRate
Namespace Prefix:	brks_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, Prepayments, Percentage of Preceding Year Excess Cash Flow Reduced by Voluntary Prepayments.

+ References

No definition available.

+ Details

Name:	brks_DebtInstrumentPrepaymentsPercentageOfPrecedingYearExcessCashFlowReducedByVoluntaryPrepayments
Namespace Prefix:	brks_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, Quarterly Installment Payment, Percentage of Annual Principal Due per Payment.

+ References

No definition available.

+ Details

Name:	brks_DebtInstrumentQuarterlyInstallmentPaymentPercentageOfAnnualPrincipalDuePerPayment
Namespace Prefix:	brks_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt instrument, repricing transaction, premium, percentage of loan principal amount during first six months of loan term.

+ References

No definition available.

+ Details

Name:	brks_DebtInstrumentRepricingTransactionPremiumPercentageOfLoanPrincipalAmount
Namespace Prefix:	brks_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

Name:	us-gaap_SubsequentEventLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_SecuredDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=brks_SeniorSecuredTermLoanFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: