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Other Securities - Narrative (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Dec. 31, 2024
Schedule of Cost-method Investments [Line Items]          
Proceeds from sales of other securities     $ 48,029 $ 42,559  
Purchases of other securities     49,949 26,238  
Alternative investments measured using the equity method $ 4,113   4,113    
Purchase of convertible preferred stock 0 $ 0 0 400  
Impairment on convertible preferred stock   3,900   3,900  
Convertible preferred stock sold   1,000   1,000  
Equity method investments 33,300   33,300   $ 28,000
Unrealized gains (losses) $ (1,700) 400 (1,700) 700  
Impairment related to equity method investments     $ 0   $ 0
Number of convertible stock 1   1    
Unrealized gains $ 2,100   $ 2,100    
Realized gains on sale of stock   $ 100   $ 100  
NAV          
Schedule of Cost-method Investments [Line Items]          
Increase in equity method investment     $ 5,000