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ORGANIZATION AND DESCRIPTION OF THE BUSINESS AND FINANCIAL STATEMENT PRESENTATION (Acquisitions) (Details) - USD ($) $ in Thousands |  |  |  |  |  | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
Dec. 30, 2016 | Sep. 02, 2016 | Dec. 01, 2015 | Jan. 02, 2015 | Apr. 30, 2014 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Acquisitions |  |  |  |  |  |  |  |
Net cash consideration |  |  |  |  |  | $ 24,780 | $ 29,813 | $ 2,647
Divestitures |  |  |  |  |  |  |  |
Proceeds from sale of subsidiaries |  |  |  |  |  | $ 2,780 |  |
ArcBest |  |  |  |  |  |  |  |
Divestitures |  |  |  |  |  |  |  |
Value of divested subsidiaries | $ 4,800 |  |  |  |  |  |  |
Proceeds from sale of subsidiaries | 2,800 |  |  |  |  |  |  |
Contingent consideration | $ 2,000 |  |  |  |  |  |  |
LDS | ArcBest |  |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |  |
Total consideration |  | $ 25,000 |  |  |  |  |  |
Cash consideration |  | 17,000 |  |  |  |  |  |
Contingent consideration |  | $ 8,000 |  |  |  |  |  |
Contingent consideration period |  | 2 years |  |  |  |  |  |
Bear Transportation Services, L.P. | ArcBest |  |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |  |
Net cash consideration |  |  | $ 24,400 |  |  |  |  |
Smart Lines Transportation Group, LLC | ArcBest |  |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |  |
Net cash consideration |  |  |  | $ 5,200 |  |  |  |
Acquired privately-owned businesses | FleetNet |  |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |  |
Net cash consideration |  |  |  |  | $ 2,600 |  |  |

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