Securities - Securities in a Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Debt Securities, Available-for-Sale [Line Items]
Fair Value, Less Than 12 Months	$ 139,928	$ 36,978
Gross Unrealized Losses, Less Than 12 Months	1,436	1,320
Fair Value, 12 Months or Greater	698,914	708,113
Gross Unrealized Losses, 12 Months or Greater	89,907	84,361
Fair Value	838,842	745,091
Gross Unrealized Losses	91,343	85,681
U.S. Treasury Securities
Debt Securities, Available-for-Sale [Line Items]
Fair Value, Less Than 12 Months	0	0
Gross Unrealized Losses, Less Than 12 Months	0	0
Fair Value, 12 Months or Greater	16,216	16,239
Gross Unrealized Losses, 12 Months or Greater	1,460	1,451
Fair Value	16,216	16,239
Gross Unrealized Losses	1,460	1,451
U.S. Government Agencies
Debt Securities, Available-for-Sale [Line Items]
Fair Value, Less Than 12 Months	0	0
Gross Unrealized Losses, Less Than 12 Months	0	0
Fair Value, 12 Months or Greater	9,377	9,410
Gross Unrealized Losses, 12 Months or Greater	858	848
Fair Value	9,377	9,410
Gross Unrealized Losses	858	848
Corporate Securities
Debt Securities, Available-for-Sale [Line Items]
Fair Value, Less Than 12 Months	7,675	7,529
Gross Unrealized Losses, Less Than 12 Months	218	362
Fair Value, 12 Months or Greater	35,458	36,106
Gross Unrealized Losses, 12 Months or Greater	5,074	5,408
Fair Value	43,133	43,635
Gross Unrealized Losses	5,292	5,770
Mortgage-Backed Securities
Debt Securities, Available-for-Sale [Line Items]
Fair Value, Less Than 12 Months	112,492	21,436
Gross Unrealized Losses, Less Than 12 Months	1,025	895
Fair Value, 12 Months or Greater	375,877	375,891
Gross Unrealized Losses, 12 Months or Greater	51,210	48,919
Fair Value	488,369	397,327
Gross Unrealized Losses	52,235	49,814
Municipal Securities
Debt Securities, Available-for-Sale [Line Items]
Fair Value, Less Than 12 Months	19,761	8,013
Gross Unrealized Losses, Less Than 12 Months	193	63
Fair Value, 12 Months or Greater	261,986	270,467
Gross Unrealized Losses, 12 Months or Greater	31,305	27,735
Fair Value	281,747	278,480
Gross Unrealized Losses	$ 31,498	$ 27,798