| Network: | 307000 - Disclosure - Note G. Part 3. Loss Contingency Accrual (http://www.abc.com/role/LossContingencyAccrual) |
| Table: | Loss Contingency Accrual [Table] (abc:LossContingencyAccrualTable) |
| 2010 | 2009 | |
| Loss contingency accrual, at carrying value, beginning balance | 1,147 | 1,148 |
| Provision | 6,408 | 400 |
| Payments | (2,208) | (401) |
| Loss contingency accrual, at carrying value, ending balance | 5,347 | 1,147 |
| Slicers (applies to each fact value in each table cell) | |
| brm:ReportingEntityMeasure | 0000000001 (http://www.sec.gov/CIK) |
| us-gaap:CreationDateAxis | abc:AsReportedFebruary122011Member |
| dei:LegalEntityAxis | dei:EntityDomain |
| us-gaap:LossContingenciesByNatureOfContingencyAxis | us-gaap:PendingOrThreatenedLitigationMember |
| brm:Units | iso4217:USD |
| brm:CalendarTimeMeasure | |||||
| brm:ConceptMeasure | 2008-12-31 | 2009-01-01/2009-12-31 | 2009-12-31 | 2010-01-01/2010-12-31 | 2010-12-31 |
| Loss Contingency Accrual [Line Items] | |||||
| Loss Contingency Accrual [Roll Forward] | |||||
| Loss Contingency Accrual, at Carrying Value, Beginning Balance | 1,148,000 | 1,147,000 | 5,347,000 | ||
| Loss Contingency Accrual, Carrying Value, Period Increase (Decrease) [Roll Up] | |||||
| Loss Contingency Accrual, Carrying Value, Provision | 400,000 | 6,408,000 | |||
| Loss Contingency Accrual, Carrying Value, Payments | 401,000 | 2,208,000 | |||
| Loss Contingency Accrual, Carrying Value, Period Increase (Decrease), Total | (1,000) | 4,200,000 | |||
| Loss Contingency Accrual, at Carrying Value, Ending Balance | 1,148,000 | 1,147,000 | 5,347,000 | ||
| Line | Label | Object Class | Period Type | Balance | Name |
| 1 | 307000 - Disclosure - Note G. Part 3. Loss Contingency Accrual | [Network] | http://www.abc.com/role/LossContingencyAccrual | ||
| 2 | Loss Contingency Accrual [Table] | [Table] | abc:LossContingencyAccrualTable | ||
| 3 | Report Date [Axis] | [Axis] | us-gaap:CreationDateAxis | ||
| 4 | Financial Statements Date [Domain] | [Domain] | us-gaap:DefaultFinancialStatementsDateMember | ||
| 5 | As Reported February 12, 2011 [Member] | [Member] | For Period | abc:AsReportedFebruary122011Member | |
| 6 | Legal Entity [Axis] | [Axis] | dei:LegalEntityAxis | ||
| 7 | Consolidated Entity [Domain] | [Domain] | dei:EntityDomain | ||
| 8 | Loss Contingencies by Nature of Contingency [Axis] | [Axis] | us-gaap:LossContingenciesByNatureOfContingencyAxis | ||
| 9 | Loss Contingency, Nature [Domain] | [Domain] | us-gaap:LossContingencyNatureDomain | ||
| 10 | Pending or Threatened Litigation [Member] | [Member] | us-gaap:PendingOrThreatenedLitigationMember | ||
| 11 | Loss Contingency Accrual [Line Items] | [Line Items] | abc:LossContingencyAccrualLineItems | ||
| 12 | Loss Contingency Accrual [Roll Forward] | [Abstract] | us-gaap:LossContingencyAccrualRollForward | ||
| 13 | Loss Contingency Accrual, at Carrying Value, Beginning Balance | [Concept] Monetary | As Of | Credit | us-gaap:LossContingencyAccrualAtCarryingValue |
| 14 | Loss Contingency Accrual, Carrying Value, Period Increase (Decrease) [Roll Up] | [Abstract] | abc:LossContingencyAccrualCarryingValuePeriodIncreaseDecreaseRollUp | ||
| 15 | Loss Contingency Accrual, Carrying Value, Provision | [Concept] Monetary | For Period | Credit | us-gaap:LossContingencyAccrualCarryingValueProvision |
| 16 | Loss Contingency Accrual, Carrying Value, Payments | [Concept] Monetary | For Period | Debit | us-gaap:LossContingencyAccrualCarryingValuePayments |
| 17 | Loss Contingency Accrual, Carrying Value, Period Increase (Decrease), Total | [Concept] Monetary | For Period | us-gaap:LossContingencyAccrualCarryingValuePeriodIncreaseDecrease | |
| 18 | Loss Contingency Accrual, at Carrying Value, Ending Balance | [Concept] Monetary | As Of | Credit | us-gaap:LossContingencyAccrualAtCarryingValue |
| Calculation Consistency Checks |
| Run date/time: 6/5/2011 7:33:04 AM |
| 307000 - Disclosure - Note G. Part 3. Loss Contingency Accrual http://www.abc.com/role/LossContingencyAccrual |
| D-2009-LC-1 |
| U-Monetary |
| Line | Concept | Balance | Decimals | Weight | Reported | Effective | Message |
| 1 | Loss Contingency Accrual, Carrying Value, Provision | Credit | -3 | 1 | 400000 | 400,000 | |
| 2 | Loss Contingency Accrual, Carrying Value, Payments | Debit | -3 | -1 | 401000 | 401,000 | |
| 3 | Loss Contingency Accrual, Carrying Value, Period Increase (Decrease) | -3 | -1000 | -1,000 | OK | ||
| D-2010-LC-1 |
| U-Monetary |
| Line | Concept | Balance | Decimals | Weight | Reported | Effective | Message |
| 1 | Loss Contingency Accrual, Carrying Value, Provision | Credit | -3 | 1 | 6408000 | 6,408,000 | |
| 2 | Loss Contingency Accrual, Carrying Value, Payments | Debit | -3 | -1 | 2208000 | 2,208,000 | |
| 3 | Loss Contingency Accrual, Carrying Value, Period Increase (Decrease) | -3 | 4200000 | 4,200,000 | OK | ||
| # | ID | Label | Rule | Result |
| 1 | ASSERTION_307000_LossContingencyAccrual_Reconciles | Loss contingency accrual roll forward reconciles. | $v:VARIABLE_BalanceStart + $v:VARIABLE_Change1 - $v:VARIABLE_Change2 = $v:VARIABLE_BalanceEnd | OK |