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Revenues - Other Disclosures (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2018
Revenues |  |  |  |  |
Total revenues | $ 5,967.6 | $ 5,658.6 | $ 17,287.8 | $ 17,345.8 |
Commercial Vehicle Distribution and Other |  |  |  |  |
Revenues |  |  |  |  |
Total revenues | 119.9 | 124.8 | $ 393.5 | 429.3 |
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 |  |
Customer return period, parts sales |  |  | 30 days |  |
Finance and insurance, net | Retail Automotive and Retail Commercial Truck Dealership |  |  |  |  |
Revenues |  |  |  |  |
Payment period |  |  | 30 days |  |
Aggregate reserves relating to chargeback activity | 26.6 |  | $ 26.6 |  | $ 26.0
Penske Commercial Vehicles Australia | Commercial Vehicle Distribution and Other |  |  |  |  |
Revenues |  |  |  |  |
Payment period |  |  | 30 days |  |
Total revenues | 119.9 | 123.7 | $ 393.5 | 426.4 |
Penske Power Systems | Commercial Vehicle Distribution and Other |  |  |  |  |
Revenues |  |  |  |  |
Payment period |  |  | 30 days |  |
Penske Power Systems | Service and parts | Commercial Vehicle Distribution and Other |  |  |  |  |
Revenues |  |  |  |  |
Total revenues | $ 69.6 | $ 65.9 | $ 196.5 | $ 194.4 |

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