v3.26.3
Investment Securities - Narrative (Details)
 3 Months Ended 9 Months Ended
Sep. 30, 2026
USD ($)
security
Sep. 30, 2025
USD ($)
Sep. 30, 2026
USD ($)
security
Sep. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
security
Debt and Equity Securities, FV-NI [Line Items]          
Accrued interest receivable $ 60,369,000   $ 60,369,000   $ 58,565,000
Trade date receivables settled after period end 0   0   0
Trade date payables settled after period end 9,900,000   9,900,000   0
Allowance for credit losses on investments $ 0   $ 0   $ 0
Number of securities in securities portfolio | security 354   354   324
Number of securities in securities portfolio, unrealized loss position | security 325   325   209
Equity securities, at fair value $ 5,759,000   $ 5,759,000   $ 155,000
Net gain (loss) on change in fair value and sale of equity securities (241,000) $ 12,000 (240,000) $ 12,000  
Equity securities without a readily determinable market value (See Note 3) 31,260,000   31,260,000   32,038,000
Equity method investments 16,039,000   16,039,000   17,611,000
Equity method goodwill 17,103,000   17,103,000    
Collateral Pledged          
Debt and Equity Securities, FV-NI [Line Items]          
Securities pledged 806,647,000   806,647,000   810,579,000
Debt Securities          
Debt and Equity Securities, FV-NI [Line Items]          
Accrued interest receivable $ 5,838,000   $ 5,838,000   $ 5,101,000