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Investments (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2021
Mastery Logistics Systems, Inc. |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Fair value of investment | $ 38.2 |  | $ 38.2
Cumulative unrealized gain on interest in investment | 28.2 |  |
Unrealized loss on interest in investment | 0.0 | $ 0.0 |
Investments in Autonomous Technology Companies |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Unrealized loss on interest in investment | $ 9.8 | $ 0.0 |

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