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Restructuring - Summary of Restructuring Activities (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023
Restructuring Reserve [Roll Forward] |  |  |  |  |
Restructuring charges | $ 5.6 | $ 0.0 | $ 5.8 | $ 0.0 |
Restructuring, 2023 Initiative | Employee Severance [Member] |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Beginning balance |  |  | 5.7 |  |
Restructuring charges |  |  | 2.5 |  | $ 7.2
Payments for Restructuring |  |  | (4.2) |  |
Ending balance | 4.0 |  | 4.0 |  | 5.7
Operating Segments | Aviation Segment | Restructuring, 2023 Initiative | Employee Severance [Member] |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Beginning balance |  |  | 1.2 |  |
Restructuring charges |  |  | 0.1 |  |
Payments for Restructuring |  |  | (0.7) |  |
Ending balance | 0.6 |  | 0.6 |  | 1.2
Operating Segments | Land | Restructuring, 2023 Initiative | Employee Severance [Member] |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Beginning balance |  |  | 3.7 |  |
Restructuring charges |  |  | 1.2 |  |
Payments for Restructuring |  |  | (2.7) |  |
Ending balance | 2.1 |  | 2.1 |  | 3.7
Operating Segments | Marine | Restructuring, 2023 Initiative | Employee Severance [Member] |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Beginning balance |  |  | 0.0 |  |
Restructuring charges |  |  | 0.0 |  |
Payments for Restructuring |  |  | 0.0 |  |
Ending balance | 0.0 |  | 0.0 |  | 0.0
Corporate | Restructuring, 2023 Initiative | Employee Severance [Member] |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Beginning balance |  |  | 0.9 |  |
Restructuring charges |  |  | 1.2 |  |
Payments for Restructuring |  |  | (0.8) |  |
Ending balance | $ 1.3 |  | $ 1.3 |  | $ 0.9

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