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GOODWILL AND INTANGIBLE ASSETS (Tables) | 12 Months Ended
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Dec. 31, 2016
GOODWILL AND INTANGIBLE ASSETS |
Schedule of goodwill by reportable operating segment |
|  | Total |  | ArcBest |  | FleetNet |
|  | (in thousands)
Balances December 31, 2014 |  | $ | 77,078 |  | $ | 76,448 |  | $ | 630 |
Goodwill acquired(1) |  |  | 19,387 |  |  | 19,387 |  |  | — |
Balances December 31, 2015 |  | $ | 96,465 |  | $ | 95,835 |  | $ | 630 |
Goodwill acquired(2) |  |  | 12,640 |  |  | 12,640 |  |  | — |
Goodwill divested(3) |  |  | (842) |  |  | (842) |  |  | — |
Purchase accounting adjustments |  |  | 612 |  |  | 612 |  |  | — |
Balances December 31, 2016 |  | $ | 108,875 |  | $ | 108,245 |  | $ | 630 |
| (1) |  | Goodwill of $4.2 million and $15.2 million related to the January 2, 2015 acquisition of Smart Lines and the December 1, 2015 acquisition of Bear, respectively, is expected to be fully deductible for tax purposes.
| (2) |  | Goodwill related to the September 2, 2016 acquisition of LDS is expected to be fully deductible for tax purposes. The fair value assessment of assets and liabilities acquired with LDS was based on preliminary information as of December 31, 2016.
| (3) |  | 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:
|  |  |  | 2016 |  | 2015 |
|  | 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(1) |  | 14 |  | $ | 60,431 |  | $ | 15,350 |  | $ | 45,081 |  | $ | 52,221 |  | $ | 11,331 |  | $ | 40,890 |
Driver network |  | 3 |  |  | 3,200 |  |  | 3,200 |  |  | — |  |  | 3,200 |  |  | 3,200 |  |  | — |
Other |  | 9 |  |  | 1,032 |  |  | 406 |  |  | 626 |  |  | 1,032 |  |  | 257 |  |  | 775 |
|  | 13 |  |  | 64,663 |  |  | 18,956 |  |  | 45,707 |  |  | 56,453 |  |  | 14,788 |  |  | 41,665 |
Indefinite-lived intangible assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Trade name |  | N/A |  |  | 32,300 |  |  | N/A |  |  | 32,300 |  |  | 32,300 |  |  | N/A |  |  | 32,300 |
Other |  | N/A |  |  | 2,500 |  |  | N/A |  |  | 2,500 |  |  | 2,822 |  |  | N/A |  |  | 2,822 |
|  |  |  |  | 34,800 |  |  |  |  |  | 34,800 |  |  | 35,122 |  |  |  |  |  | 35,122 |
Total intangible assets |  | N/A |  | $ | 99,463 |  | $ | 18,956 |  | $ | 80,507 |  | $ | 91,575 |  | $ | 14,788 |  | $ | 76,787 |
| (1) |  | Customer relationships include $7.7 million related to the September 2, 2016 acquisition of LDS. The fair value assessment of assets and liabilities acquired with LDS was based on preliminary information as of December 31, 2016.
Schedule of future amortization for intangible assets and acquired software |
|  |  |  |  | Intangible |  | Acquired |
|  | Total |  | Assets |  | Software(1) |
|  | (in thousands) |
2017 |  | $ | 7,236 |  | $ | 4,538 |  | $ | 2,698 |
2018 |  |  | 6,654 |  |  | 4,520 |  |  | 2,134 |
2019 |  |  | 5,469 |  |  | 4,482 |  |  | 987 |
2020 |  |  | 4,471 |  |  | 4,454 |  |  | 17 |
2021 |  |  | 4,418 |  |  | 4,412 |  |  | 6 |
Thereafter |  |  | 23,301 |  |  | 23,301 |  |  | — |
Total amortization |  | $ | 51,549 |  | $ | 45,707 |  | $ | 5,842 |
| (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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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 + Details
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