Securities - Summary of Amortized Cost and Fair Values of Securities Available-for-sale (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Schedule Of Available For Sale Securities [Line Items]
Securities available-for-sale, at fair value	$ 1,516,801	$ 1,378,343
Available-for-sale Securities, Gross Unrealized Gains	4,743	127
Available-for-sale Securities, Gross Unrealized Losses	(179,064)	(204,039)
Available-for-sale Securities, Fair Value	1,342,480	1,174,431
U.S. Treasury Notes
Schedule Of Available For Sale Securities [Line Items]
Securities available-for-sale, at fair value	116,398	42,430
Available-for-sale Securities, Gross Unrealized Gains	61	2
Available-for-sale Securities, Gross Unrealized Losses	(1,025)	(1,709)
Available-for-sale Securities, Fair Value	115,434	40,723
U.S. Government Agencies
Schedule Of Available For Sale Securities [Line Items]
Securities available-for-sale, at fair value	147,062	150,524
Available-for-sale Securities, Gross Unrealized Gains	37	116
Available-for-sale Securities, Gross Unrealized Losses	(16,404)	(20,276)
Available-for-sale Securities, Fair Value	130,695	130,364
Obligations of States, Municipalities, and Political Subdivisions
Schedule Of Available For Sale Securities [Line Items]
Securities available-for-sale, at fair value	86,022	68,019
Available-for-sale Securities, Gross Unrealized Gains	396	9
Available-for-sale Securities, Gross Unrealized Losses	(4,143)	(6,152)
Available-for-sale Securities, Fair Value	82,275	61,876
Agency, Residential Mortgage-Backed Securities
Schedule Of Available For Sale Securities [Line Items]
Securities available-for-sale, at fair value	786,970	707,157
Available-for-sale Securities, Gross Unrealized Gains	4,247	0
Available-for-sale Securities, Gross Unrealized Losses	(95,414)	(111,361)
Available-for-sale Securities, Fair Value	695,803	595,796
Non-Agency, Residential Mortgage-Backed Securities
Schedule Of Available For Sale Securities [Line Items]
Securities available-for-sale, at fair value	122,359	130,654
Available-for-sale Securities, Gross Unrealized Gains	0	0
Available-for-sale Securities, Gross Unrealized Losses	(22,099)	(24,405)
Available-for-sale Securities, Fair Value	100,260	106,249
Agency, Commercial Mortgage-Backed Securities
Schedule Of Available For Sale Securities [Line Items]
Securities available-for-sale, at fair value	181,452	191,172
Available-for-sale Securities, Gross Unrealized Gains	0	0
Available-for-sale Securities, Gross Unrealized Losses	(34,248)	(34,142)
Available-for-sale Securities, Fair Value	147,204	157,030
Corporate Securities
Schedule Of Available For Sale Securities [Line Items]
Securities available-for-sale, at fair value	40,681	45,302
Available-for-sale Securities, Gross Unrealized Gains	0	0
Available-for-sale Securities, Gross Unrealized Losses	(4,510)	(3,866)
Available-for-sale Securities, Fair Value	36,171	41,436
Asset-Backed Securities
Schedule Of Available For Sale Securities [Line Items]
Securities available-for-sale, at fair value	35,857	43,085
Available-for-sale Securities, Gross Unrealized Gains	2	0
Available-for-sale Securities, Gross Unrealized Losses	(1,221)	(2,128)
Available-for-sale Securities, Fair Value	$ 34,638	$ 40,957

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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