v3.26.1
Securities - Narrative (Details)
$ in Thousands
1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Aug. 31, 2025
USD ($)
Jun. 30, 2026
USD ($)
security
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
security
Jun. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
security
Schedule of Available-for-sale Securities [Line Items]            
Debt securities, held-to-maturity, amortized cost, transfer, amount $ 1,800,000          
Debt securities, held-to-maturity, transfer, unrealized gain (loss) 282,600          
Debt securities, available-for-sale, sold at par value 1,400,000          
Gross losses $ 299,500 $ 0 $ 0 $ 0 $ 407  
Number of securities in unrealized loss positions | security   595   595   836
Unrealized loss positions   $ 572,600   $ 572,600   $ 310,100
Percentage of portfolio       64.00%   35.00%
Fair value of nonaccrual status   4,100   $ 4,100    
Credit loss expense (benefit)   0 (150) 0 (150)  
Accrued interest receivable on available for sale debt securities   5,600   5,600   $ 5,300
Tax benefit from the sale of securities available for sale   $ 0 $ 0 $ 0 $ 100