Annual report pursuant to Section 13 and 15(d)

Income Taxes - Schedule of Accumulated Net Realized Gain (Loss) of Paid-in Capital (Details)

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Income Taxes - Schedule of Accumulated Net Realized Gain (Loss) of Paid-in Capital (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Equity Method Investment, Nonconsolidated Investee or Group of Investees      
Income Tax Contingency [Line Items]      
Reclassified accumulated net realized gains (losses) $ 0.8 $ 3.0 $ 63.3