Securities - Schedule of Gross Unrealized Losses and Fair Value by Investment Category (Details) $ in Thousands	Dec. 31, 2025 USD ($) security	Dec. 31, 2024 USD ($) security
Available for Sale:
Number of positions, Less than 12 Months | security	54	16
Fair Value, Less than 12 Months	$ 482,669	$ 95,216
Unrealized Losses, Less than 12 Months	$ (3,204)	$ (1,120)
Number of positions, 12 Months or More | security	115	122
Fair Value, 12 Months or More	$ 568,544	$ 606,628
Unrealized Losses, 12 Months or More	$ (93,355)	$ (137,488)
Number of positions | security	169	138
Fair Value	$ 1,051,213	$ 701,844
Unrealized Losses	$ (96,559)	$ (138,608)
Held to Maturity:
Number of positions, Less than 12 Months | security	0	0
Fair Value, Less than 12 Months	$ 0	$ 0
Unrealized Losses, Less than 12 Months	$ 0	$ 0
Number of positions, 12 Months or More | security	228	235
Fair Value, 12 Months or More	$ 959,977	$ 1,000,874
Unrealized Losses, 12 Months or More	$ (68,264)	$ (123,603)
Number of positions | security	228	235
Fair Value	$ 959,977	$ 1,000,874
Unrealized Losses	$ (68,264)	$ (123,603)
Obligations of states and political subdivisions
Available for Sale:
Number of positions, Less than 12 Months | security	13	0
Fair Value, Less than 12 Months	$ 19,454	$ 0
Unrealized Losses, Less than 12 Months	$ (445)	$ 0
Number of positions, 12 Months or More | security	7	7
Fair Value, 12 Months or More	$ 13,591	$ 12,841
Unrealized Losses, 12 Months or More	$ (1,335)	$ (2,269)
Number of positions | security	20	7
Fair Value	$ 33,045	$ 12,841
Unrealized Losses	$ (1,780)	$ (2,269)
Held to Maturity:
Number of positions, Less than 12 Months | security	0	0
Fair Value, Less than 12 Months	$ 0	$ 0
Unrealized Losses, Less than 12 Months	$ 0	$ 0
Number of positions, 12 Months or More | security	124	128
Fair Value, 12 Months or More	$ 248,044	$ 240,394
Unrealized Losses, 12 Months or More	$ (29,516)	$ (42,491)
Number of positions | security	124	128
Fair Value	$ 248,044	$ 240,394
Unrealized Losses	$ (29,516)	$ (42,491)
Other debt securities
Available for Sale:
Number of positions, Less than 12 Months | security	10	2
Fair Value, Less than 12 Months	$ 191,504	$ 22,357
Unrealized Losses, Less than 12 Months	$ (1,347)	$ (218)
Number of positions, 12 Months or More | security	8	17
Fair Value, 12 Months or More	$ 14,571	$ 30,801
Unrealized Losses, 12 Months or More	$ (967)	$ (2,437)
Number of positions | security	18	19
Fair Value	$ 206,075	$ 53,158
Unrealized Losses	$ (2,314)	$ (2,655)
Held to Maturity:
Number of positions, Less than 12 Months | security	0	0
Fair Value, Less than 12 Months	$ 0	$ 0
Unrealized Losses, Less than 12 Months	$ 0	$ 0
Number of positions, 12 Months or More | security	10	10
Fair Value, 12 Months or More	$ 45,351	$ 49,603
Unrealized Losses, 12 Months or More	$ (2,062)	$ (4,080)
Number of positions | security	10	10
Fair Value	$ 45,351	$ 49,603
Unrealized Losses	$ (2,062)	$ (4,080)
Agency mortgage backed securities | Residential mortgage-backed securities:
Available for Sale:
Number of positions, Less than 12 Months | security	8	7
Fair Value, Less than 12 Months	$ 135,320	$ 11,051
Unrealized Losses, Less than 12 Months	$ (903)	$ (259)
Number of positions, 12 Months or More | security	36	34
Fair Value, 12 Months or More	$ 132,975	$ 141,321
Unrealized Losses, 12 Months or More	$ (14,772)	$ (24,209)
Number of positions | security	44	41
Fair Value	$ 268,295	$ 152,372
Unrealized Losses	$ (15,675)	$ (24,468)
Held to Maturity:
Number of positions, Less than 12 Months | security	0	0
Fair Value, Less than 12 Months	$ 0	$ 0
Unrealized Losses, Less than 12 Months	$ 0	$ 0
Number of positions, 12 Months or More | security	66	69
Fair Value, 12 Months or More	$ 313,963	$ 347,154
Unrealized Losses, 12 Months or More	$ (10,030)	$ (25,251)
Number of positions | security	66	69
Fair Value	$ 313,963	$ 347,154
Unrealized Losses	$ (10,030)	$ (25,251)
Agency mortgage backed securities | Commercial mortgage-backed securities:
Available for Sale:
Number of positions, Less than 12 Months | security	9	2
Fair Value, Less than 12 Months	$ 71,188	$ 5,248
Unrealized Losses, Less than 12 Months	$ (395)	$ (122)
Number of positions, 12 Months or More | security	2	2
Fair Value, 12 Months or More	$ 5,595	$ 5,375
Unrealized Losses, 12 Months or More	$ (367)	$ (629)
Number of positions | security	11	4
Fair Value	$ 76,783	$ 10,623
Unrealized Losses	$ (762)	$ (751)
Held to Maturity:
Number of positions, Less than 12 Months | security	0	0
Fair Value, Less than 12 Months	$ 0	$ 0
Unrealized Losses, Less than 12 Months	$ 0	$ 0
Number of positions, 12 Months or More | security	1	1
Fair Value, 12 Months or More	$ 14,879	$ 14,002
Unrealized Losses, 12 Months or More	$ (2,059)	$ (2,958)
Number of positions | security	1	1
Fair Value	$ 14,879	$ 14,002
Unrealized Losses	$ (2,059)	$ (2,958)
Collateralized mortgage obligations | Residential mortgage-backed securities:
Available for Sale:
Number of positions, Less than 12 Months | security	2	3
Fair Value, Less than 12 Months	$ 24,816	$ 48,879
Unrealized Losses, Less than 12 Months	$ (58)	$ (482)
Number of positions, 12 Months or More | security	37	37
Fair Value, 12 Months or More	$ 299,606	$ 311,964
Unrealized Losses, 12 Months or More	$ (57,850)	$ (86,388)
Number of positions | security	39	40
Fair Value	$ 324,422	$ 360,843
Unrealized Losses	$ (57,908)	$ (86,870)
Held to Maturity:
Number of positions, Less than 12 Months | security	0	0
Fair Value, Less than 12 Months	$ 0	$ 0
Unrealized Losses, Less than 12 Months	$ 0	$ 0
Number of positions, 12 Months or More | security	18	18
Fair Value, 12 Months or More	$ 301,657	$ 313,376
Unrealized Losses, 12 Months or More	$ (18,600)	$ (41,506)
Number of positions | security	18	18
Fair Value	$ 301,657	$ 313,376
Unrealized Losses	$ (18,600)	$ (41,506)
Collateralized mortgage obligations | Commercial mortgage-backed securities:
Available for Sale:
Number of positions, Less than 12 Months | security	12	2
Fair Value, Less than 12 Months	$ 40,387	$ 7,681
Unrealized Losses, Less than 12 Months	$ (56)	$ (39)
Number of positions, 12 Months or More | security	25	25
Fair Value, 12 Months or More	$ 102,206	$ 104,326
Unrealized Losses, 12 Months or More	$ (18,064)	$ (21,556)
Number of positions | security	37	27
Fair Value	$ 142,593	$ 112,007
Unrealized Losses	$ (18,120)	$ (21,595)
Held to Maturity:
Number of positions, Less than 12 Months | security	0	0
Fair Value, Less than 12 Months	$ 0	$ 0
Unrealized Losses, Less than 12 Months	$ 0	$ 0
Number of positions, 12 Months or More | security	9	9
Fair Value, 12 Months or More	$ 36,083	$ 36,345
Unrealized Losses, 12 Months or More	$ (5,997)	$ (7,317)
Number of positions | security	9	9
Fair Value	$ 36,083	$ 36,345
Unrealized Losses	$ (5,997)	$ (7,317)