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GOODWILL AND INTANGIBLE ASSETS (Tables) | 12 Months Ended
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Dec. 31, 2017
GOODWILL AND INTANGIBLE ASSETS |
Schedule of goodwill by reportable operating segment |
|  | Total |  | ArcBest |  | FleetNet |
|  | (in thousands)
Balances December 31, 2015 |  | $ | 96,465 |  | $ | 95,835 |  | $ | 630 |
Goodwill acquired(1) |  |  | 12,640 |  |  | 12,640 |  |  | — |
Goodwill divested(2) |  |  | (842) |  |  | (842) |  |  | — |
Purchase accounting adjustments |  |  | 612 |  |  | 612 |  |  | — |
Balances December 31, 2016 |  | $ | 108,875 |  | $ | 108,245 |  | $ | 630 |
Goodwill divested(2) |  |  | (661) |  |  | (661) |  |  | — |
Purchase accounting adjustments |  |  | 106 |  |  | 106 |  |  | — |
Balances December 31, 2017 |  | $ | 108,320 |  | $ | 107,690 |  | $ | 630 |
| (1) |  | Goodwill related to the September 2, 2016 acquisition of LDS is expected to be fully deductible for tax purposes.
| (2) |  | Goodwill divested due to the sale of certain non-strategic businesses was determined based on the relative fair value of the businesses sold to the total fair value of the reporting unit.
Schedule of intangible assets | Intangible assets consisted of the following as of December 31:
|  |  |  | 2017 |  | 2016 |
|  | Weighted-Average |  |  |  |  | Accumulated |  | Net |  |  |  |  | Accumulated |  | Net |
|  | Amortization Period |  | Cost |  | Amortization |  | Value |  |  | Cost |  | Amortization |  | Value |
|  | (in years) |  | (in thousands) |  | (in thousands) |
Finite-lived intangible assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships |  | 14 |  | $ | 60,431 |  | $ | 19,745 |  | $ | 40,686 |  | $ | 60,431 |  | $ | 15,350 |  | $ | 45,081 |
Driver network |  | 3 |  |  | 3,200 |  |  | 3,200 |  |  | — |  |  | 3,200 |  |  | 3,200 |  |  | — |
Other |  | 9 |  |  | 1,032 |  |  | 549 |  |  | 483 |  |  | 1,032 |  |  | 406 |  |  | 626 |
|  | 13 |  |  | 64,663 |  |  | 23,494 |  |  | 41,169 |  |  | 64,663 |  |  | 18,956 |  |  | 45,707 |
Indefinite-lived intangible assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Trade name |  | N/A |  |  | 32,300 |  |  | N/A |  |  | 32,300 |  |  | 32,300 |  |  | N/A |  |  | 32,300 |
Other(1) |  | N/A |  |  | — |  |  | N/A |  |  | — |  |  | 2,500 |  |  | N/A |  |  | 2,500 |
|  |  |  |  | 32,300 |  |  |  |  |  | 32,300 |  |  | 34,800 |  |  |  |  |  | 34,800 |
Total intangible assets |  | N/A |  | $ | 96,963 |  | $ | 23,494 |  | $ | 73,469 |  | $ | 99,463 |  | $ | 18,956 |  | $ | 80,507 |
| 1) |  | Other indefinite-lived intangible assets divested due to the sale of certain non-strategic businesses.
Schedule of future amortization for intangible assets and acquired software |
|  |  |  |  | Intangible |  | Acquired |
|  | Total |  | Assets |  | Software(1) |
|  | (in thousands) |
2018 |  | $ | 6,641 |  | $ | 4,520 |  | $ | 2,121 |
2019 |  |  | 5,463 |  |  | 4,482 |  |  | 981 |
2020 |  |  | 4,471 |  |  | 4,454 |  |  | 17 |
2021 |  |  | 4,418 |  |  | 4,412 |  |  | 6 |
2022 |  |  | 4,385 |  |  | 4,385 |  |  | — |
Thereafter |  |  | 18,916 |  |  | 18,916 |  |  | — |
Total amortization |  | $ | 44,294 |  | $ | 41,169 |  | $ | 3,125 |
| (1) |  | Acquired software is reported in property, plant and equipment.

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- Definition Tabular disclosure of intangibles assets, excluding goodwill, in total and by major class, including the gross carrying amount and accumulated amortization, if applicable. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company. + References No definition available. + Details
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