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Summary of Significant Accounting Policies (Narrative) (Details) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 USD ($) reporting_unit | Dec. 31, 2022 USD ($)
Accounting Policies [Abstract] |  |
Restricted cash | $ 7.5 | $ 7.5
Interest trade receivable percentage | 100.00% |
Disposal group, including discontinued operation, accounts, notes and loans receivable, net | $ 60.0 | 65.0
Accounts payable, third party programs | $ 105.0 | $ 80.0
Number of reporting units | reporting_unit | 7 |

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