v3.26.3
Investment Securities Available-for-Sale and Held-to-Maturity - Additional Information (Details)
Sep. 30, 2026
USD ($)
Investment
Security
Jul. 15, 2026
USD ($)
Dec. 31, 2025
USD ($)
Investment
Security
Jun. 30, 2025
USD ($)
Securitization
Jun. 03, 2025
USD ($)
Apr. 01, 2025
USD ($)
Schedule of Investments [Line Items]            
Number of unrealized loss positions | Investment 113   39      
Number of securities pledged as collateral | Security 16,700,000   0      
Allowance for credit losses recognized on available for sale securities in unrealized loss position $ 0   $ 0      
Allowance for credit losses recognized on held-to-maturity securities in unrealized loss position 0   0      
Securities held-to-maturity 191,924,000   192,008,000      
Number of securitizations completed | Securitization       2    
Securitization of revolving commercial real estate loans 87,500,000 $ 87,500,000   $ 250,000,000 $ 150,000,000 $ 100,000,000
Investment securities, fair value 190,543,000   189,106,000      
Investment securities available-for-sale $ 461,524,000   $ 383,192,000      
Class A-1 Asset Backed Notes [Member]            
Schedule of Investments [Line Items]            
Investment securities, fair value         $ 127,500,000 $ 78,000,000
Investment securities available-for-sale   $ 74,400,000