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Other Operating Expenses/(Income) (Narrative) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Other Operating Expenses [Line Items] |  |  |  |
Total other operating expenses/(income) | $ 2,570 | $ (118) | $ 8,923 | $ (169)
Transportation Equipment Held For Sale [Member] |  |  |  |
Other Operating Expenses [Line Items] |  |  |  |
Total other operating expenses/(income) | $ 2,266 |  | 2,266 |
Litigation Settlement [Member] |  |  |  |
Other Operating Expenses [Line Items] |  |  |  |
Total other operating expenses/(income) |  | $ (204) | $ 6,000 | $ (204)

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- Details
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