Securities & Allowance for Securities Credit Losses - Unrealized Loss Position (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Schedule of Available-for-sale and Held-to-Maturity Securities [Line Items]
Unrealized loss position for less than 12 months, unrealized loss	$ (49)	$ (196)
Unrealized loss position for less than 12 months, fair value	29,100	156,681
Unrealized loss position for more than 12 months, unrealized loss	(3,326)	(6,885)
Unrealized loss position for more than 12 months, fair value	82,845	140,153
Available-for Sale, Gross Unrealized Losses, Total	(3,375)	(7,081)
Available-for Sale, Fair Value of Investments with Unrealized Losses, Total	111,945	296,834
U.S. government and federal agencies
Schedule of Available-for-sale and Held-to-Maturity Securities [Line Items]
Unrealized loss position for less than 12 months, unrealized loss	(6)	(29)
Unrealized loss position for less than 12 months, fair value	10,108	141,169
Unrealized loss position for more than 12 months, unrealized loss	(827)	(1,532)
Unrealized loss position for more than 12 months, fair value	14,599	22,348
Available-for Sale, Gross Unrealized Losses, Total	(833)	(1,561)
Available-for Sale, Fair Value of Investments with Unrealized Losses, Total	24,707	163,517
Mortgage-backed securities
Schedule of Available-for-sale and Held-to-Maturity Securities [Line Items]
Unrealized loss position for less than 12 months, unrealized loss	0	0
Unrealized loss position for less than 12 months, fair value	0	26
Unrealized loss position for more than 12 months, unrealized loss	(344)	(582)
Unrealized loss position for more than 12 months, fair value	5,283	7,338
Available-for Sale, Gross Unrealized Losses, Total	(344)	(582)
Available-for Sale, Fair Value of Investments with Unrealized Losses, Total	5,283	7,364
Corporate Bonds
Schedule of Available-for-sale and Held-to-Maturity Securities [Line Items]
Unrealized loss position for less than 12 months, unrealized loss	(25)	(90)
Unrealized loss position for less than 12 months, fair value	9,501	6,365
Unrealized loss position for more than 12 months, unrealized loss	(146)	(663)
Unrealized loss position for more than 12 months, fair value	8,646	30,677
Available-for Sale, Gross Unrealized Losses, Total	(171)	(753)
Available-for Sale, Fair Value of Investments with Unrealized Losses, Total	18,147	37,042
State and municipal securities
Schedule of Available-for-sale and Held-to-Maturity Securities [Line Items]
Unrealized loss position for less than 12 months, unrealized loss	(18)	(77)
Unrealized loss position for less than 12 months, fair value	9,491	9,121
Unrealized loss position for more than 12 months, unrealized loss	(2,009)	(4,108)
Unrealized loss position for more than 12 months, fair value	54,317	79,790
Available-for Sale, Gross Unrealized Losses, Total	(2,027)	(4,185)
Available-for Sale, Fair Value of Investments with Unrealized Losses, Total	$ 63,808	$ 88,911