Securities - Schedule of Amortized Cost and Fair Value of Securities Available for Sale and Held to Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Available for sale
Amortized cost within one year	$ 15,468
Amortized cost one to five years	44,318
Amortized cost for five to ten years	77,678
Amortized cost for after ten years	283,403
Amortized cost, available for sale	420,867
Amortized Cost	926,040	$ 908,829
Fair value within one year	15,415
Fair value for one to five years	42,898
Fair value for five to ten years	70,217
Fair value for after ten years	247,982
Fair value, available for sale	376,512
Total available for sale investment securities, amortized cost, fair value	882,168	875,414
U.S. government agency mortgage-backed securities
Available for sale
Amortized cost, available for sale, mortgage obligations	505,173
Amortized Cost	505,173	489,683
Fair value, available for sale, without single maturity	505,656
Total available for sale investment securities, amortized cost, fair value	$ 505,656	$ 494,174