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Revenues - Contract Balances (Details) - USD ($) $ in Millions | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Contract Balances |  |
Accounts receivable | $ 993.3 | $ 1,002.1
Unearned revenues | 299.2 | 266.8
Contracts in transit |  |
Contract Balances |  |
Accounts receivable | 255.5 | 281.7
Vehicle receivables |  |
Contract Balances |  |
Accounts receivable | 149.5 | 136.3
Manufacturer receivables |  |
Contract Balances |  |
Accounts receivable | 233.3 | 233.3
Trade receivables |  |
Contract Balances |  |
Accounts receivable | $ 331.3 | $ 326.9

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