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Revenues - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023
Revenues |  |  |  |  |
Total revenues | $ 7,696.7 | $ 7,468.5 | $ 15,144.5 | $ 14,807.5 |
Unearned revenue recognized as revenue |  |  | $ 150.0 |  |
Commercial vehicle distribution and other |  |  |  |  |
Revenues |  |  |  |  |
Payment period |  |  | 45 days |  |
Total revenues | 189.0 | 143.3 | $ 367.0 | 286.9 |
Vehicle Sales | Retail Automotive and Retail Commercial Truck Dealership |  |  |  |  |
Revenues |  |  |  |  |
Payment period |  |  | 30 days |  |
Service and parts | Retail Automotive and Retail Commercial Truck Dealership |  |  |  |  |
Revenues |  |  |  |  |
Payment period |  |  | 30 days |  |
Service and parts | Commercial vehicle distribution and other |  |  |  |  |
Revenues |  |  |  |  |
Total revenues | 70.9 | $ 68.0 | $ 137.9 | $ 129.3 |
Finance and insurance, net | Retail Automotive and Retail Commercial Truck Dealership |  |  |  |  |
Revenues |  |  |  |  |
Payment period |  |  | 30 days |  |
Aggregate reserves relating to chargeback activity | $ 48.5 |  | $ 48.5 |  | $ 42.7

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