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LEGAL PROCEEDINGS, ENVIRONMENTAL MATTERS, AND OTHER EVENTS (Details) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 USD ($) tank state | Dec. 31, 2014 USD ($)
Underground fuel storage tanks |  |
Environmental Matters |  |
Number of underground tanks where the company's subsidiaries store fuel for use in tractors and trucks | tank | 62 |
Number of states in which underground tanks are located | state | 18 |
Clean Water Act | Brooklyn, New York branch | Freight Transportation (ABF Freight) |  |
Environmental Matters |  |
Reserve for environmental contingencies | $ 0.0 |
Environmental cleanup costs |  |
Environmental Matters |  |
Reserve for environmental contingencies | 0.8 | $ 0.8
Maximum | Clean Water Act | Kent, Washington branch | Freight Transportation (ABF Freight) |  |
Environmental Matters |  |
Amount paid for resolution | $ 0.2 |

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