| Fact Group (Combination of Network and Hypercube) | |
| Network: | 153101 - Statement - Prior Period Adjustment, Retained Earnings (http://www.abc.com/role/PriorPeriodAdjustmentRetainedEarnings) |
| Hypercube: | Prior Period Adjustment, Retained Earnings [Table] (abc:PriorPeriodAdjustmentRetainedEarningsTable) |
| Slicers (applies to each fact value in each table cell) | |
| brm:ReportingEntityMeasure | 0000000001 (http://www.sec.gov/CIK) |
| dei:LegalEntityAxis | dei:EntityDomain |
| brm:Units | iso4217:USD |
| us-gaap:CreationDateAxis | |||
| brm:ConceptMeasure | Financial Statements Date [Domain] | As Reported February 8, 2010 [Member] | As Reported February 12, 2011 [Member] |
| Prior Period Adjustment, Retained Earnings [Line Items] | |||
| Retained Earnings (Accumulated Deficit) [Adjustment] | |||
| Retained earnings, Origionally Stated | 7,000,000 | 7,000,000 | |
| Retained earnings, Adjustments [Roll Up] | |||
| Correction of Prior Period Error | 2,000,000 | ||
| Effect of Mandatory Change in Accounting Policy for Adoption of FAS XXX | (1,000,000) | ||
| Effect of Voluantary Change in Accounting Policy | (1,000,000) | ||
| Retained earnings, Adjustments, Total | 0 | ||
| Retained earnings, Restated | 7,000,000 | 7,000,000 | |