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Inventory and Vehicle Floorplan Payable (Tables) | 12 Months Ended
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Dec. 31, 2023
Inventory And Vehicle Floorplan Payable [Abstract] |
Components Of Inventory | The components of inventory at December 31 are as follows:
| 2023 |  | 2022
New vehicles | $ | 1,948.6 |  |  | $ | 1,009.7 |
Used vehicles | 815.3 |  |  | 789.1 |
Parts, accessories, and other | 269.5 |  |  | 249.5 |
Inventory | $ | 3,033.4 |  |  | $ | 2,048.3 |
Components Of Vehicle Floorplan Payable | The components of vehicle floorplan payable at December 31 are as follows:
| 2023 |  | 2022
Vehicle floorplan payable - trade | $ | 1,760.0 |  |  | $ | 946.6 |
Vehicle floorplan payable - non-trade | 1,622.4 |  |  | 1,162.7 |
Vehicle floorplan payable | $ | 3,382.4 |  |  | $ | 2,109.3 |

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- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(a)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(c)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483489/210-10-50-1 + Details
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