Securities - Summary of Gross Unrealized Losses and Fair Values, Aggregated by Investment Category and Length of Individual Securities Continuous Unrealized Loss Position Available-for-sale (Details) $ in Thousands	Dec. 31, 2023 USD ($) Security	Dec. 31, 2022 USD ($) Security
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Number of Securities | Security	283	280
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 33,553	$ 408,306
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	(1,735)	(43,803)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	1,046,104	730,217
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	(177,329)	(160,236)
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Fair Value	1,079,657	1,138,523
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Unrealized Losses	$ (179,064)	$ (204,039)
Held to maturity securities continuous unrealized loss position number of positions | Security	2	4
Held to maturity securities continuous unrealized loss position less than twelve months fair value	$ 0	$ 2,672
Held to maturity securities continuous unrealized loss position less than 12 months accumulated loss	0	(33)
Held to maturity securities continuous unrealized loss position twelve months or longer fair value	1,149	0
Held to maturity securities continuous unrealized loss position 12 months or longer accumulated loss	(8)	0
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value, Total	1,149	2,672
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss, Total	$ (8)	$ (33)
U.S.treasury notes
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Number of Securities | Security	7	6
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 5,018	$ 21,720
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	(4)	(1,078)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	31,843	9,339
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	(1,021)	(631)
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Fair Value	36,861	31,059
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Unrealized Losses	$ (1,025)	$ (1,709)
U.S. Government Agencies
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Number of Securities | Security	18	17
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 535	$ 44,508
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	(9)	(4,782)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	119,109	70,609
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	(16,395)	(15,494)
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Fair Value	119,644	115,117
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Unrealized Losses	$ (16,404)	$ (20,276)
Obligations of States, Municipalities, and Political Subdivisions
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Number of Securities | Security	61	58
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 12,267	$ 50,216
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	(156)	(3,858)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	49,617	7,185
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	(3,987)	(2,294)
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Fair Value	61,884	57,401
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Unrealized Losses	$ (4,143)	$ (6,152)
Held to maturity securities continuous unrealized loss position number of positions | Security	2	4
Held to maturity securities continuous unrealized loss position less than twelve months fair value	$ 0	$ 2,672
Held to maturity securities continuous unrealized loss position less than 12 months accumulated loss	0	(33)
Held to maturity securities continuous unrealized loss position twelve months or longer fair value	1,149	0
Held to maturity securities continuous unrealized loss position 12 months or longer accumulated loss	(8)	0
Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value, Total	1,149	2,672
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss, Total	$ (8)	$ (33)
Agency, Residential Mortgage-Backed Securities
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Number of Securities | Security	102	101
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 8,332	$ 117,598
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	(49)	(11,045)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	543,648	478,198
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	(95,365)	(100,316)
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Fair Value	551,980	595,796
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Unrealized Losses	$ (95,414)	$ (111,361)
Non-Agency, Residential Mortgage-Backed Securities
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Number of Securities | Security	20	19
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 636	$ 35,486
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	0	(7,569)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	99,624	70,763
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	(22,099)	(16,836)
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Fair Value	100,260	106,249
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Unrealized Losses	$ (22,099)	$ (24,405)
Agency, Commercial Mortgage-Backed Securities
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Number of Securities | Security	48	47
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 6,765	$ 76,193
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	(1,517)	(11,840)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	140,439	74,315
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	(32,731)	(22,302)
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Fair Value	147,204	150,508
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Unrealized Losses	$ (34,248)	$ (34,142)
Corporate Securities
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Number of Securities | Security	21	24
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 0	$ 37,130
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	0	(3,128)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	36,171	4,306
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	(4,510)	(738)
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Fair Value	36,171	41,436
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Unrealized Losses	$ (4,510)	$ (3,866)
Asset-Backed Securities
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Number of Securities | Security	6	8
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 0	$ 25,455
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	0	(503)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	25,653	15,502
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	(1,221)	(1,625)
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Fair Value	25,653	40,957
Available-for-sale Securities, Continuous Unrealized Loss Position, Total Unrealized Losses	$ (1,221)	$ (2,128)