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Restructuring - Summary of Impairment by Reportable Business Segment (Details) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Jun. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Asset impairments | $ 0 | $ 18,600,000 | $ 0 | $ 18,600,000 | $ 0
Operating Segments | Aviation |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Asset impairments |  |  |  | 6,900,000 |
Operating Segments | Land |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Asset impairments |  |  |  | 5,900,000 |
Operating Segments | Marine |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Asset impairments |  |  |  | 4,000,000.0 |
Corporate |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Asset impairments |  |  |  | $ 1,800,000 |

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