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COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
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Loss Contingencies [Line Items] |  |
Outstanding chassis converter pool | $ 18,234 | $ 17,767
Chassis Converter Pool Agreements |  |
Loss Contingencies [Line Items] |  |
Consigned inventory belonging to the manufacturer | $ 5,900 |

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- Definition Amount before valuation and LIFO reserves of other inventory expected to be sold, or consumed within one year or operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.6(a)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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