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Investment Securities - Narrative (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2025
USD ($)
security
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Investments, Debt and Equity Securities [Abstract]      
Equity securities without readily determinable fair values $ 68,500 $ 65,100  
Upward adjustments of equity securities without readily determinable fair values 0 0  
Downward adjustments of equity securities without readily determinable fair values 20 0 $ 0
Impairment of equity securities without readily determinable fair values 2,098 3,730 688
Investment securities, income tax (benefit) expense 2,200 (676,520) $ 403
Pledged securities $ 8,600,000 $ 6,900,000  
Number of securities by a single non-government sponsored issuer exceeding 10% of shareholders' equity | security 0