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Accounts Receivable - Breakdown of Current and Long Term Portions of Auto Loan and Lease Receivables (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current portion of auto loan and lease receivables, net of allowance of $15.5 and $13.6	$ 923.8	$ 910.0	$ 910.0
Long term portion of auto loan and lease receivables, net of allowance of $13.9 and $11.4	875.2		$ 602.6
Accounts receivable, allowance for doubtful accounts, current	18.7	17.3
Auto loan and lease receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current portion of auto loan and lease receivables, net of allowance of $15.5 and $13.6	157.2	224.5
Long term portion of auto loan and lease receivables, net of allowance of $13.9 and $11.4	849.8	579.7
Auto loan and lease receivables, net	1,007.0	804.2
Accounts receivable, allowance for doubtful accounts, current	15.5	13.6
Accounts receivable, allowance for doubtful accounts, noncurrent	$ 13.9	$ 11.4

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Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business.

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