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Accounts Receivable - FICO Score (Details) - Auto loan and lease receivables - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total auto loan receivables	$ 928.2	$ 725.0
Lease portfolio and accrued interest	108.2	104.2
Total auto loan and lease receivables	1,036.4	829.2
Less than 599
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total auto loan receivables	85.8	83.2
600-699
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total auto loan receivables	547.4	437.6
700-774
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total auto loan receivables	238.3	166.8
775+
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total auto loan receivables	$ 56.7	$ 37.4

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Amount, before allowance for credit loss, of accrued interest on financing receivable.

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