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Cash, Cash Equivalents, and Restricted Cash (Tables) | 12 Months Ended
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Dec. 31, 2023
Cash and Cash Equivalents [Abstract] |
Schedule of Cash and Cash Equivalents | The following table sets forth the cash, cash equivalents, and restricted cash (in millions):
| December 31
| 2023 |  | 2022
Cash and cash equivalents: |  |  |
Cash | $ | 54.3 |  |  | $ | 65.7 |
Money market funds | 77.8 |  |  | 87.1 |
Commercial paper | 10.0 |  |  | 26.8 |
U.S. government and agencies | — |  |  | 14.9 |
Total cash and cash equivalents | 142.1 |  |  | 194.5 |
Restricted cash: |  |  |
Fiduciary assets | 32.5 |  |  | 30.6 |
Letters of credit and cash on deposit | 20.5 |  |  | 19.4 |
Total restricted cash | 53.0 |  |  | 50.0 |
Total cash, cash equivalents, and restricted cash | $ | 195.1 |  |  | $ | 244.5 |
Schedule of Restrictions on Cash and Cash Equivalents | The following table sets forth the cash, cash equivalents, and restricted cash (in millions):
| December 31
| 2023 |  | 2022
Cash and cash equivalents: |  |  |
Cash | $ | 54.3 |  |  | $ | 65.7 |
Money market funds | 77.8 |  |  | 87.1 |
Commercial paper | 10.0 |  |  | 26.8 |
U.S. government and agencies | — |  |  | 14.9 |
Total cash and cash equivalents | 142.1 |  |  | 194.5 |
Restricted cash: |  |  |
Fiduciary assets | 32.5 |  |  | 30.6 |
Letters of credit and cash on deposit | 20.5 |  |  | 19.4 |
Total restricted cash | 53.0 |  |  | 50.0 |
Total cash, cash equivalents, and restricted cash | $ | 195.1 |  |  | $ | 244.5 |

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