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Other Assets - Summary of Other Assets (Details) - USD ($) $ in Millions | Sep. 30, 2023 | Dec. 31, 2022
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Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |  |
Prepaid expenses | $ 11.5 | $ 17.4
Claims receivable | 11.2 | 9.0
Lease right-of-use assets | 14.6 | 27.6
Property and equipment | 35.1 | 5.4
Other | 6.6 | 4.2
Total other assets | $ 79.0 | $ 63.6

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