v2.4.0.6

Summary Of Significant Accounting Policies (Summary Of Estimated Useful Lives Of Assets) (Detail) | 12 Months Ended
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Jun. 30, 2012
Building [Member] |
Schedule Of Significant Accounting Policies [Line Items] |
Estimated useful lives of assets | 10 years
Minimum [Member] | Equipment [Member] |
Schedule Of Significant Accounting Policies [Line Items] |
Estimated useful lives of assets | 3 years
Minimum [Member] | Furniture and Fixtures [Member] |
Schedule Of Significant Accounting Policies [Line Items] |
Estimated useful lives of assets | 3 years
Maximum [Member] | Equipment [Member] |
Schedule Of Significant Accounting Policies [Line Items] |
Estimated useful lives of assets | 5 years
Maximum [Member] | Furniture and Fixtures [Member] |
Schedule Of Significant Accounting Policies [Line Items] |
Estimated useful lives of assets | 7 years

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- Details
Name: | br_ScheduleOfSignificantAccountingPoliciesLineItems
Namespace Prefix: | br_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration