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Restructuring - Summary of Impairment by Reportable Business Segment (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Restructuring Cost and Reserve [Line Items] |  |  |  |
Asset impairments | $ 18.6 | $ 0.0 | $ 18.6 | $ 0.0
Operating Segments | Aviation |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Asset impairments |  |  | 6.9 |
Operating Segments | Land |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Asset impairments |  |  | 5.9 |
Operating Segments | Marine |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Asset impairments |  |  | 4.0 |
Corporate |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Asset impairments |  |  | $ 1.8 |

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