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Accounts Receivable - Breakdown of Current and Long Term Portions of Auto Loan and Lease Receivables (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
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Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Current portion of auto loan and lease receivables, net of allowance of $13.6 and $2.1 | $ 910.0 | $ 614.0 | $ 505.0
Long term portion of auto loan and lease receivables, net of allowance of $11.4 and $10.8 | 602.6 | 101.0 |
Accounts receivable, allowance for credit loss, current | 17.3 | 5.9 | $ 7.3
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 $13.6 and $2.1 | 224.5 | 78.6 |
Long term portion of auto loan and lease receivables, net of allowance of $11.4 and $10.8 | 579.7 | 84.1 |
Auto loan and lease receivables, net | 804.2 | 162.7 |
Accounts receivable, allowance for credit loss, current | 13.6 | 2.1 |
Accounts receivable, allowance for credit loss, noncurrent | $ 11.4 | $ 10.8 |

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