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LONG-TERM DEBT AND FINANCING ARRANGEMENTS (Details 3) (USD $) |  |  |  |  |  |  | 3 Months Ended | 6 Months Ended |  | 0 Months Ended |  |
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Jun. 30, 2014 | Dec. 31, 2013 | Jun. 30, 2014 Letter of Credit Agreements | Dec. 31, 2013 Letter of Credit Agreements | Jun. 30, 2014 Surety bonds | Dec. 31, 2013 Surety bonds | Jun. 30, 2014 Notes payable Revenue Equipment ABF Freight | Jun. 30, 2014 Notes payable Revenue Equipment ABF Freight | Jun. 30, 2014 Credit Agreement Revolving commitments | Jun. 15, 2012 Credit Agreement Term Loan | Jun. 30, 2014 Accounts receivable securitization program | Jun. 30, 2014 Accounts receivable securitization program Letter of Credit Agreements | Dec. 31, 2013 Accounts receivable securitization program Letter of Credit Agreements
Financing Arrangements |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, term |  |  |  |  |  |  |  |  |  | 5 years |  |  |
Face amount of term loan |  |  |  |  |  |  |  |  |  | $ 100,000,000 |  |  |
Maximum borrowing capacity |  |  |  |  |  |  |  |  | 75,000,000 |  | 75,000,000 |  |
Amount outstanding |  |  |  |  |  |  |  |  | 0 |  | 0 |  |
Equipment financed during the period under notes payable |  |  |  |  |  |  | 22,800,000 | 22,800,000 |  |  |  |  |
Outstanding letters of credit |  |  | 19,500,000 | 22,800,000 |  |  |  |  |  |  |  | 17,500,000 | 20,300,000
Remaining borrowing capacity |  |  | 58,600,000 |  |  |  |  |  |  |  | 57,500,000 |  |
Amounts collateralized by restricted funds | 1,385,000 | 1,902,000 | 1,400,000 | 1,900,000 |  |  |  |  |  |  |  |  |
Outstanding surety bonds under uncollateralized bond programs |  |  |  |  | 56,100,000 | 43,800,000 |  |  |  |  |  |  |
Outstanding surety bonds under collateralized bond program |  |  |  |  |  | 12,700,000 |  |  |  |  |  |  |
Letters of credit, outstanding amount used as collateral |  |  |  |  |  | $ 3,800,000 |  |  |  |  |  |  |

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- Definition Represents the total amount of outstanding surety bonds under the collateralized bond program related to the self-insurance program as of the reporting date. + References No definition available. + Details
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- Definition Represents the total amount of outstanding surety bonds under the uncollateralized bond program related to the self-insurance program as of the reporting date. + References No definition available. + Details
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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400 + Details
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- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Amount borrowed under the credit facility as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt. + References No definition available. + Details
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- Definition The current cash, cash equivalents and investments that are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against short-term borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. Includes current cash equivalents and investments that are similarly restricted as to withdrawal, usage or disposal. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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