Revenues - Contract Balances (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Contract Balances
Accounts receivable	$ 1,070.3	$ 1,037.2
Unearned revenues	299.3	268.9
Contracts in transit
Contract Balances
Accounts receivable	272.2	292.2
Vehicle receivables
Contract Balances
Accounts receivable	141.5	145.1
Manufacturer receivables
Contract Balances
Accounts receivable	256.4	246.0
Trade receivables
Contract Balances
Accounts receivable	$ 381.6	$ 330.0

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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