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Note 5 - Property and Equipment (Details Textual) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Depreciation, Total | $ 60,400 | $ 77,600 | $ 74,400
Gain (Loss) on Disposition of Property Plant Equipment, Total | 7,706 | 1,650 | (298)
Capital Leased Assets, Gross, Total | 50,200 | 55,000 |
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation | 20,800 | 21,000 |
Capital Leases, Income Statement, Amortization Expense | $ 4,100 | 5,500 | 5,400
Revenue Equipment [Member] | Minimum [Member] |  |  |
Capital Leases of Lessee, Term of Contract (Month) | 48 months |  |
Revenue Equipment [Member] | Maximum [Member] |  |  |
Capital Leases of Lessee, Term of Contract (Month) | 84 months |  |
Net in Depreciation and Amortization Expense [Member] |  |  |
Gain (Loss) on Disposition of Property Plant Equipment, Total | $ 7,700 | $ 1,700 | $ (300)

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- Definition Amount before accumulated depreciation of leased physical assets used in the normal conduct of business to produce goods and services. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121569800&loc=d3e45014-112735 + Details
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- Definition Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details
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