v3.26.1
Investment Securities - Schedule of Investments by Contractual Maturity (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Investments in AFS debt securities—Amortized cost:    
Due Within One Year $ 0  
Due After One Year Through Five Years 96,037  
Due After Five Years Through Ten Years 212,986  
Due After Ten Years 2,734,751  
Total $ 3,043,774 $ 2,434,627
Weighted average yield for investments in AFS debt securities    
Due Within One Year 0.00%  
Due After One Year Through Five Years 4.07%  
Due After Five Years Through Ten Years 3.98%  
Due After Ten Years 4.53%  
Total 4.49%  
Investments in AFS debt securities—Fair value:    
Due Within One Year $ 0  
Due After One Year Through Five Years 95,849  
Due After Five Years Through Ten Years 211,433  
Due After Ten Years 2,732,740  
Total 3,040,022  
Accrued Interest 8,338 6,342
U.S. Treasury securities    
Investments in AFS debt securities—Amortized cost:    
Due Within One Year 0  
Due After One Year Through Five Years 49,337  
Due After Five Years Through Ten Years 172,520  
Due After Ten Years 0  
Total 221,857 74,540
Investments in AFS debt securities—Fair value:    
Due Within One Year 0  
Due After One Year Through Five Years 49,032  
Due After Five Years Through Ten Years 171,530  
Due After Ten Years 0  
Total 220,562  
Accrued Interest 1,026 1,115
Agency mortgage-backed securities    
Investments in AFS debt securities—Amortized cost:    
Due Within One Year 0  
Due After One Year Through Five Years 46,516  
Due After Five Years Through Ten Years 20,058  
Due After Ten Years 2,734,751  
Total 2,801,325 2,335,501
Investments in AFS debt securities—Fair value:    
Due Within One Year 0  
Due After One Year Through Five Years 46,636  
Due After Five Years Through Ten Years 19,831  
Due After Ten Years 2,732,740  
Total 2,799,207  
Accrued Interest 7,205 5,095
Corporate bonds    
Investments in AFS debt securities—Amortized cost:    
Due Within One Year 0  
Due After One Year Through Five Years 184  
Due After Five Years Through Ten Years 0  
Due After Ten Years 0  
Total 184 184
Investments in AFS debt securities—Fair value:    
Due Within One Year 0  
Due After One Year Through Five Years 181  
Due After Five Years Through Ten Years 0  
Due After Ten Years 0  
Total 181  
Accrued Interest 3 3
Asset-backed bonds    
Investments in AFS debt securities—Amortized cost:    
Due Within One Year 0  
Due After One Year Through Five Years 0  
Due After Five Years Through Ten Years 15,919  
Due After Ten Years 0  
Total 15,919 19,626
Investments in AFS debt securities—Fair value:    
Due Within One Year 0  
Due After One Year Through Five Years 0  
Due After Five Years Through Ten Years 15,857  
Due After Ten Years 0  
Total 15,857  
Accrued Interest 68 83
Residual investments    
Investments in AFS debt securities—Amortized cost:    
Due Within One Year 0  
Due After One Year Through Five Years 0  
Due After Five Years Through Ten Years 3,537  
Due After Ten Years 0  
Total 3,537 3,825
Investments in AFS debt securities—Fair value:    
Due Within One Year 0  
Due After One Year Through Five Years 0  
Due After Five Years Through Ten Years 3,394  
Due After Ten Years 0  
Total 3,394  
Accrued Interest 32 38
Other    
Investments in AFS debt securities—Amortized cost:    
Due Within One Year 0  
Due After One Year Through Five Years 0  
Due After Five Years Through Ten Years 952  
Due After Ten Years 0  
Total 952 951
Investments in AFS debt securities—Fair value:    
Due Within One Year 0  
Due After One Year Through Five Years 0  
Due After Five Years Through Ten Years 821  
Due After Ten Years 0  
Total 821  
Accrued Interest $ 4 $ 8