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Revenues - Contract Balances (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020
Contract Balances |  |
Accounts receivable | $ 734.0 | $ 806.9
Unearned revenues | 297.0 | 262.9
Revenue recognized from unearned revenue | 174.3 |
Contracts in transit |  |
Contract Balances |  |
Accounts receivable | 198.7 | 254.0
Vehicle receivables |  |
Contract Balances |  |
Accounts receivable | 197.7 | 216.2
Trade receivables |  |
Contract Balances |  |
Accounts receivable | $ 164.5 | $ 135.3

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