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Sale of ADESA U.S. Physical Auction Business and Discontinued Operations (Details) - USD ($) $ in Millions |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
May 09, 2022 | Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Discontinued Operations |  |  |  |  |
Term of commercial agreement | 7 years |  |  |  |
Net cash inflow from the commercial agreement and transition services |  |  |  | $ 88.7 | $ 74.6
Service Revenue - KAR to ADESA U.S. Physical Auctions |  | $ 0.3 | $ 12.9 | $ 0.7 | 55.7
Cost of Service - KAR to ADESA U.S. Physical Auctions |  |  | $ 12.9 |  | $ 55.7

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