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Investment Securities (Amortized Cost and Fair Value of Investment Securities) (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities available for sale, Amortized Cost	$ 1,082,174	$ 1,127,057
Securities available for sale, Unrealized Gains	332	338
Securities available for sale, Unrealized Losses	170,384	173,024
Securities available for sale	912,122	954,371
Securities held to maturity, Amortized Cost	159,897	188,980
Securities held to maturity, Unrealized Gains	25	24
Securities held to maturity, Unrealized Losses	13,896	14,816
Securities held to maturity, fair value	146,026	174,188
Allowance for credit losses, Amortized Cost	(4)	(5)
Held-to-maturity securities, net , Amortized Cost	159,893	188,975
U.S. Government Agency And Government Sponsored Enterprises [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities available for sale, Amortized Cost	24,535	24,535
Securities available for sale, Unrealized Gains	0	0
Securities available for sale, Unrealized Losses	3,274	3,420
Securities available for sale	21,261	21,115
Securities held to maturity, Amortized Cost	16,438	16,363
Securities held to maturity, Unrealized Gains	0	0
Securities held to maturity, Unrealized Losses	824	848
Securities held to maturity, fair value	15,614	15,515
State And Political Subdivisions [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities held to maturity, Amortized Cost	76,066	97,583
Securities held to maturity, Unrealized Gains	25	24
Securities held to maturity, Unrealized Losses	6,396	7,172
Securities held to maturity, fair value	69,695	90,435
Collateralized Mortgage Obligations [Member] | Federal Home Loan Mortgage Corporation [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities held to maturity, Amortized Cost		7,959
Collateralized Mortgage Obligations Government National Mortgage Association Certificates And Obligations Gnma [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities held to maturity, Amortized Cost	3,871	4,222
Securities held to maturity, Unrealized Gains	0	0
Securities held to maturity, Unrealized Losses	349	330
Securities held to maturity, fair value	3,522	3,892
Collateralized Mortgage Obligations Federal National Mortgage Association Certificates and Obligations (FNMA) [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities available for sale, Amortized Cost	11,502	12,175
Securities available for sale, Unrealized Gains	0	0
Securities available for sale, Unrealized Losses	2,544	2,603
Securities available for sale	8,958	9,572
Securities held to maturity, Amortized Cost	12,796	14,268
Securities held to maturity, Unrealized Gains	0	0
Securities held to maturity, Unrealized Losses	1,111	1,119
Securities held to maturity, fair value	11,685	13,149
Mortgage-Backed Securities [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities available for sale, Amortized Cost	1,057,639	1,102,522
Securities available for sale, Unrealized Gains	332	338
Securities available for sale, Unrealized Losses	167,110	169,604
Securities available for sale	890,861	933,256
Securities held to maturity, Amortized Cost	67,393	75,034
Securities held to maturity, Unrealized Gains	0	0
Securities held to maturity, Unrealized Losses	6,676	6,796
Securities held to maturity, fair value	60,717	68,238
Collateralized Mortgage-Backed Securities Government National Mortgage Association Certificates and Obligations (GNMA) [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities available for sale, Amortized Cost	110,319	112,202
Securities available for sale, Unrealized Gains	0	1
Securities available for sale, Unrealized Losses	21,179	18,037
Securities available for sale	89,140	94,166
Securities held to maturity, Amortized Cost	21,173	22,541
Securities held to maturity, Unrealized Gains	0	0
Securities held to maturity, Unrealized Losses	1,988	2,116
Securities held to maturity, fair value	19,185	20,425
Collateralized Mortgage-Backed Securities Federal National Mortgage Association Certificates and Obligations (FNMA) [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities available for sale, Amortized Cost	524,797	545,797
Securities available for sale, Unrealized Gains	0	0
Securities available for sale, Unrealized Losses	73,148	76,193
Securities available for sale	451,649	469,604
Securities held to maturity, Amortized Cost	5,990	8,332
Securities held to maturity, Unrealized Gains	0	0
Securities held to maturity, Unrealized Losses	556	582
Securities held to maturity, fair value	5,434	7,750
Collateralized Mortgage Obligations Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities available for sale, Amortized Cost	20,673	21,519
Securities available for sale, Unrealized Gains	0	0
Securities available for sale, Unrealized Losses	4,584	4,163
Securities available for sale	16,089	17,356
Securities held to maturity, Amortized Cost	15,836	17,712
Securities held to maturity, Unrealized Gains	0	0
Securities held to maturity, Unrealized Losses	1,307	1,253
Securities held to maturity, fair value	14,529	16,459
Collateralized Mortgage Obligations Mortgage-Backed Securities, Issued by Private Enterprises [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities available for sale, Amortized Cost	0	0
Securities available for sale, Unrealized Gains	332	337
Securities available for sale, Unrealized Losses	0	0
Securities available for sale	332	337
Collateralized Mortgage-Backed Securities Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities available for sale, Amortized Cost	390,348	410,829
Securities available for sale, Unrealized Gains	0	0
Securities available for sale, Unrealized Losses	65,655	68,608
Securities available for sale	324,693	342,221
Securities held to maturity, Amortized Cost	7,727
Securities held to maturity, Unrealized Gains	0	0
Securities held to maturity, Unrealized Losses	1,365	1,396
Securities held to maturity, fair value	$ 6,362	$ 6,563

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