Securities - Securities Gross (Details) $ in Thousands	Sep. 30, 2025 USD ($) segment	Dec. 31, 2024 USD ($)
Less Than 12 Months
Fair Value	$ 55,103	$ 153,622
Unrealized Losses	(518)	(2,354)
More Than 12 Months
Fair Value	940,601	983,703
Unrealized Losses	(126,237)	(166,580)
Total
Fair Value	995,704	1,137,325
Unrealized Losses	$ (126,755)	(168,934)
Number of investment securities segregation for impairment evaluation | segment	2
U.S. Government agencies
Less Than 12 Months
Fair Value	$ 2,970	3,696
Unrealized Losses	(21)	(107)
More Than 12 Months
Fair Value	70,049	74,636
Unrealized Losses	(8,451)	(11,563)
Total
Fair Value	73,019	78,332
Unrealized Losses	(8,472)	(11,670)
Mortgage Backed Securities - residential
Less Than 12 Months
Fair Value	10,126	51,996
Unrealized Losses	(1)	(1,113)
More Than 12 Months
Fair Value	462,925	481,270
Unrealized Losses	(62,312)	(88,138)
Total
Fair Value	473,051	533,266
Unrealized Losses	(62,313)	(89,251)
Mortgage Backed Securities - commercial
Less Than 12 Months
Fair Value	5,963	6,937
Unrealized Losses	(138)	(161)
More Than 12 Months
Fair Value	5,246	5,388
Unrealized Losses	(175)	(362)
Total
Fair Value	11,209	12,325
Unrealized Losses	(313)	(523)
Collateralized Mortgage Obligations
Less Than 12 Months
Fair Value		85
More Than 12 Months
Fair Value	144,998	158,244
Unrealized Losses	(22,736)	(27,555)
Total
Fair Value	144,998	158,329
Unrealized Losses	(22,736)	(27,555)
State and municipal obligations
Less Than 12 Months
Fair Value	36,044	89,321
Unrealized Losses	(358)	(953)
More Than 12 Months
Fair Value	225,304	232,247
Unrealized Losses	(28,853)	(33,586)
Total
Fair Value	261,348	321,568
Unrealized Losses	(29,211)	(34,539)
Municipal taxable
Less Than 12 Months
Fair Value		1,587
Unrealized Losses		(20)
More Than 12 Months
Fair Value	32,079	31,918
Unrealized Losses	(3,710)	(5,376)
Total
Fair Value	32,079	33,505
Unrealized Losses	$ (3,710)	$ (5,396)