v3.26.1
Investment Securities - Schedule of Contractual Maturities of Investment Securities (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Mar. 31, 2025
Available-for-sale securities      
Due in one year or less, amortized cost $ 52,659 $ 47,978 $ 61,653
Due in one to five years, amortized cost 144,558 143,352 160,377
Due in five to ten years, amortized cost 83,262 80,561 89,444
Due after ten years, amortized cost 29,961 27,481 27,136
Amortized Cost 7,703,993 6,635,481 4,729,234
Due in one year or less, fair value 52,630 47,915 61,702
Due in one to five years, fair value 142,218 141,123 156,869
Due in five to ten years, fair value 81,813 79,672 85,935
Due after ten years, fair value 27,178 25,257 24,016
Fair Value 7,244,282 6,236,263 4,220,305
Held-to-maturity securities      
Due in one year or less, amortized cost 41,651 47,030 27,766
Due in one to five years, amortized cost 77,489 76,452 103,583
Due in five to ten years, amortized cost 60,440 67,195 94,324
Due after ten years, amortized cost 302,111 302,153 302,854
Amortized Cost 3,270,464 3,344,165 3,564,936
Less: Allowance for credit losses (257) (260) (446)
Held-to-maturity securities, net of allowance for credit losses 3,270,207 3,343,905 3,564,490
Due in one year or less, fair value 41,412 46,630 27,436
Due in one to five years, fair value 77,218 76,366 101,546
Due in five to ten years, fair value 56,617 63,882 88,875
Due after ten years, fair value 244,224 246,728 242,029
Fair Value 2,702,780 2,785,147 2,922,813
Mortgage-backed      
Available-for-sale securities      
Mortgage-backed, amortized cost 7,393,553 6,336,109 4,390,624
Mortgage-backed, fair value 6,940,443 5,942,296 3,891,783
Held-to-maturity securities      
Mortgage-backed, amortized cost 2,788,773 2,851,335 3,036,409
Mortgage-backed, fair value $ 2,283,309 $ 2,351,541 $ 2,462,927