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Investments (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021 | Dec. 31, 2021
Mastery Logistics Systems, Inc. |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Payments to acquire additional interest in investment | $ 20.0 |  |  |  |
Fair value of investment | 86.8 |  | $ 86.8 |  | $ 38.2
Gain on investments in equity securities, net | 28.6 |  | 28.6 |  |
Cumulative unrealized gain on interest in investment | 56.8 |  | 56.8 |  |
Gain on investments in equity securities, net |  | $ 0.0 |  | $ 0.0 |
Investments in Autonomous Technology Companies |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Gain on investments in equity securities, net |  | $ 20.2 |  | $ 20.2 |
Unrealized loss on interest in investment | $ 4.5 |  | $ 14.3 |  |

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