XML 44 R44.htm IDEA: XBRL DOCUMENT
v2.4.0.6

ACCOUNTING POLICIES (Details 3) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011
Claims Liabilities |  |
Receivables, net of related allowances, for workers' compensation excess claims paid by the Company but insured by the excess insurers | $ 1.0 | $ 0.7
Liabilities for workers' compensation excess claims insured by, but not expected to be covered by the excess insurers | 1.9 | 1.5
Insurance-Related Assessments |  |
Liabilities for state guaranty fund assessments and other insurance-related assessments | $ 1.4 | $ 1.1
Maximum expected period for payment of state guaranty fund assessments and other insurance-related assessments | 1 year |

X
- Details
Name: | abfs_ClaimsLiabilitiesAbstract
Namespace Prefix: | abfs_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the liabilities for workers' compensation excess claims insured but not expected to be covered by the insurance company. + References No definition available. + Details
Name: | abfs_LiabilitiesForWorkersCompensationExcessClaims
Namespace Prefix: | abfs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The maximum period of time over which the undiscounted amount of the required funding mandated by statute or regulatory authority that is related directly or indirectly to underwriting activities, including pools for self-insurance and excluding premium taxes and income taxes, is expected to be paid. + References No definition available. + Details
Name: | abfs_LossContingencyUndiscountedAmountOfInsuranceRelatedAssessmentLiabilityPaymentPeriodMaximum
Namespace Prefix: | abfs_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount due in settlement of a claim for reimbursement from an insurance company when the Company has suffered a loss covered under an insurance policy. + References No definition available. + Details
Name: | us-gaap_InsuranceSettlementsReceivable
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Definition The liability as of the balance sheet date representing required funding mandated by statute or regulatory authority that is related directly or indirectly to underwriting activities, including pools for self-insurance and excluding premium taxes and income taxes. The funds derived from the assessments generally enable a government guarantor to pay insurance claims in the event that the underwriting insurer is insolvent or otherwise unable to meet its payment obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 405 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=9154593&loc=d3e23169-109297 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 405 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6392405&loc=d3e24119-109301 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 97-3 -Paragraph 27 -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_LossContingencyUndiscountedAmountOfInsuranceRelatedAssessmentLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration