v2.4.0.6

Discontinued Operations (Narrative) (Detail) (USD $) In Millions, except Share data, unless otherwise specified | 0 Months Ended | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Jun. 05, 2012 Year | Oct. 31, 2011 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2011 | Sep. 30, 2011 | Jun. 30, 2011 | Mar. 31, 2011 | Dec. 31, 2010 | Sep. 30, 2010 | Jun. 30, 2012 Year | Jun. 30, 2011 | Jun. 30, 2010 | Jun. 25, 2010 | May 31, 2010
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Date of sale on business disposal contracts |  |  | June 25, 2010 |  |  |  |  |  |  |  | June 25, 2010 |  |  |  |
Term of subordinated note from PWI, in years |  |  |  |  |  |  |  |  |  |  | 5 |  |  |  |
Subordinated note receivable due to disposal of discontinued operations |  |  | $ 20.6 |  |  |  |  |  |  |  | $ 20.6 |  |  |  |
Spread over LIBOR (basis points) |  |  | 0.0550 |  |  |  |  |  |  |  | 0.0550 |  |  |  |
Number of PWI common shares received in connection with disposal of discontinued operations |  |  | 2,455,627 |  |  |  |  |  |  |  | 2,455,627 |  |  |  |
Percentage of common shares received compared to the total number of common shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 9.50%
Closing price of common stock at completion of sale |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 5.95 |
Master services agreement | 10 |  |  |  |  |  |  |  |  |  | 11 |  |  |  |
Expiration date on agreement |  |  |  |  |  |  |  |  |  |  | December 2022 |  |  |  |
Annual revenues under outsourcing services agreement |  |  | 800.3 | 547.0 | 479.8 | 476.4 | 776.1 | 527.1 | 442.3 | 421.4 | 2,303.5 | 2,166.9 | 2,209.2 |  |
Additional revenue due to outsourcing support services |  |  |  |  |  |  |  |  |  |  | 8.0 |  |  |  |
Consideration for additional services |  | 7.0 |  |  |  |  |  |  |  |  |  |  |  |  |
Fee shortfall reimbursement threshold |  |  |  |  |  |  |  |  |  |  | 8.0 |  |  |  |
Fee shortfall reimbursement maximum |  |  |  |  |  |  |  |  |  |  | 7.0 |  |  |  |
Outstanding common stock, percentage |  |  | 9.90% |  |  |  |  |  |  |  | 9.90% |  |  |  |
Transition period |  |  |  |  |  |  |  |  |  |  | 24 months |  |  |  |
Retain claims under Outsourcing Services Agreement against PFSC |  |  | 20 |  |  |  |  |  |  |  | 20 |  |  |  |
Deferred Costs |  |  | 47.2 |  |  |  |  |  |  |  | 47.2 |  |  |  |
Credit Penson fees |  |  |  |  |  |  |  |  |  |  | 15.1 |  |  |  |
Penson Worldwide, Inc. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual revenues under outsourcing services agreement |  |  |  |  |  |  |  |  |  |  | 50.0 |  |  |  |
Ridge Clearing & Outsourcing Solutions, Inc. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate purchase price on sale of contracts |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 35.2 |

X
- Definition Additional revenue due to outsourcing support service. + References No definition available. + Details
Name: | br_AdditionalRevenueDueToOutsourcingSupportService
Namespace Prefix: | br_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Business disposal, date of sale of contracts. + References No definition available. + Details
Name: | br_BusinessDisposalDateOfSaleOfContracts
Namespace Prefix: | br_
Data Type: | us-types:dateStringItemType
Balance Type: | na
Period Type: | instant

X
- Definition Closing price of common stock. + References No definition available. + Details
Name: | br_ClosingPriceOfCommonStock
Namespace Prefix: | br_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Common stock, shares, outstanding, percentage. + References No definition available. + Details
Name: | br_CommonStockSharesOutstandingPercentage
Namespace Prefix: | br_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Consideration for procurement of outsourcing support service. + References No definition available. + Details
Name: | br_ConsiderationForProcurementOfOutsourcingSupportService
Namespace Prefix: | br_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Debt instrument, basis spread over LIBOR. + References No definition available. + Details
Name: | br_DebtInstrumentBasisSpreadOverLibor
Namespace Prefix: | br_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Expiration date on agreement. + References No definition available. + Details
Name: | br_ExpirationDateOnAgreement
Namespace Prefix: | br_
Data Type: | us-types:dateStringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fee shortfall reimbursement maximum. + References No definition available. + Details
Name: | br_FeeShortfallReimbursementMaximum
Namespace Prefix: | br_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Fee shortfall reimbursement threshold. + References No definition available. + Details
Name: | br_FeeShortfallReimbursementThreshold
Namespace Prefix: | br_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Loan And Credit Related Fees + References No definition available. + Details
Name: | br_LoanAndCreditRelatedFees
Namespace Prefix: | br_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Outsourcing Service Agreement Term + References No definition available. + Details
Name: | br_OutsourcingServiceAgreementTerm
Namespace Prefix: | br_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of common shares received compared to the total number of common shares. + References No definition available. + Details
Name: | br_PercentageOfCommonSharesReceivedComparedToTotalNumberOfCommonShares
Namespace Prefix: | br_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Retained Claims + References No definition available. + Details
Name: | br_RetainedClaims
Namespace Prefix: | br_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Subordinated Debt Term + References No definition available. + Details
Name: | br_SubordinatedDebtTerm
Namespace Prefix: | br_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Transition Period + References No definition available. + Details
Name: | br_TransitionPeriod
Namespace Prefix: | br_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of acquisition cost of a business combination allocated to notes payables and long-term debt assumed from the acquired entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 51 -Subparagraph e -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 98-1 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 37 -Subparagraph g -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_BusinessAcquisitionPurchasePriceAllocationNotesPayableAndLongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Sum of the carrying amounts of deferred costs that are expected to be recognized as a charge against earnings in periods after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 17 -Article 5 Reference 2: 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_DeferredCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Balance held at close of period in number of shares. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 6 -Subparagraph (SX 210.12-14.Column B) -URI http://asc.fasb.org/extlink&oid=6955306&loc=d3e611322-123010 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-12.Column B) -URI http://asc.fasb.org/extlink&oid=6955306&loc=d3e611133-123010 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12C -Paragraph Column B -Article 12 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-12C.Column B) -URI http://asc.fasb.org/extlink&oid=6955306&loc=d3e611225-123010 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Paragraph Column B -Article 12 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 14 -Paragraph Column B -Article 12 + Details
Name: | us-gaap_InvestmentOwnedBalanceShares
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
Name: | us-gaap_Revenues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The value of all consideration given or received by the Entity in the significant acquisition or disposal. + References No definition available. + Details
Name: | us-gaap_SignificantAcquisitionsAndDisposalsAcquisitionCostsOrSaleProceeds
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant