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Note 3 - Restructuring and Cost Savings Initiatives - Other Restructuring Gains and Charges (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Gain on disposal of terminals, net | $ 7,677 | $ 2,829 | $ (298)
Amortization of Intangible Assets, Total | 5,100 | $ 2,900 | $ 1,500
Total restructuring | 3,493 |  |
Highway Services and Dedicated [Member] | Gain on Disposition of Property and Equipment, Net [Member] |  |  |
Gain on disposal of terminals, net | (4,740) |  |
Abandonment | 1,048 |  |
Highway Services and Dedicated [Member] | Revenue Equipment Rentals and Purchased Transportation [Member] |  |  |
Abandonment | 825 |  |
Highway Services and Dedicated [Member] | General Supplies and Expenses [Member] |  |  |
Contract exit costs and restructuring related costs and professional fees | 695 |  |
Highway Services, Dedicated, and Managed Freight [Member] | Salaries Wages And Related Expenses [Member] |  |  |
Restructuring related separation and other | 4,334 |  |
Dedicated and Managed Freight [Member] | Depreciation and Amortization [Member] |  |  |
Amortization of Intangible Assets, Total | $ 1,331 |  |

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