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Description of the Business and Summary of Significant Accounting Policies - Income taxes (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |
Income tax benefit, release of deferred tax asset valuation allowance | $ 420.2 | $ 420.2

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