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Accounts Receivable (Details) - USD ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Accounts receivable gross | $ 567.4 | $ 573.7
Less: Allowance for doubtful accounts | (7.3) | (7.2)
Less: Long-term portion of accounts receivable, net | (55.1) | (37.1)
Total accounts receivable, net | 505.0 | 529.4
Contracts in transit |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Accounts receivable gross | 269.7 | 294.0
Trade receivables |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Accounts receivable gross | 52.8 | 54.3
Vehicle receivables |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Accounts receivable gross | 50.9 | 51.6
Manufacturer receivables |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Accounts receivable gross | 112.4 | 105.5
Auto loan receivables |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Accounts receivable gross | 62.2 | 61.5
Other receivables |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Accounts receivable gross | $ 19.4 | $ 6.8

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