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Fair Value Measurements - Additional Information (Details) - USD ($)
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Net unrealized gain $ (61,074,000) $ (69,641,000)
Securities purchased 83,000 143,000
Fair Value, Inputs, Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Net unrealized gain $ 317,000 $ 212,000