v3.26.1
Investment Securities - Schedule of Contractual Maturities of Investment Securities (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Jun. 30, 2025
Available-for-sale securities      
Due in one year or less, amortized cost $ 50,797 $ 47,978 $ 62,253
Due in one to five years, amortized cost 147,762 143,352 151,056
Due in five to ten years, amortized cost 75,168 80,561 88,408
Due after ten years, amortized cost 29,153 27,481 27,023
Amortized Cost 8,069,111 6,635,481 5,389,193
Due in one year or less, fair value 50,770 47,915 62,243
Due in one to five years, fair value 145,769 141,123 148,424
Due in five to ten years, fair value 73,431 79,672 84,792
Due after ten years, fair value 26,730 25,257 23,826
Fair Value 7,587,545 6,236,263 4,885,715
Held-to-maturity securities      
Due in one year or less, amortized cost 37,765 47,030 30,097
Due in one to five years, amortized cost 74,802 76,452 99,929
Due in five to ten years, amortized cost 59,807 67,195 91,099
Due after ten years, amortized cost 301,384 302,153 302,699
Amortized Cost 3,196,672 3,344,165 3,502,584
Less: Allowance for credit losses (220) (260) (398)
Held-to-maturity securities, net of allowance for credit losses 3,196,452 3,343,905 3,502,186
Due in one year or less, fair value 37,664 46,630 29,819
Due in one to five years, fair value 74,609 76,366 98,644
Due in five to ten years, fair value 56,219 63,882 86,363
Due after ten years, fair value 243,383 246,728 240,268
Fair Value 2,634,961 2,785,147 2,869,415
Mortgage-backed      
Available-for-sale securities      
Mortgage-backed, amortized cost 7,766,231 6,336,109 5,060,453
Mortgage-backed, fair value 7,290,845 5,942,296 4,566,430
Held-to-maturity securities      
Mortgage-backed, amortized cost 2,722,914 2,851,335 2,978,760
Mortgage-backed, fair value $ 2,223,086 $ 2,351,541 $ 2,414,321