Investment Securities (Amortized Cost and Fair Value of Investment Securities) (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities available for sale, Amortized Cost	$ 1,149,475	$ 1,184,835
Securities available for sale, Unrealized Gains	345	8,446
Securities available for sale, Unrealized Losses	184,289	14,766
Securities available for sale	965,531	1,178,515
Securities held to maturity, Amortized Cost	197,543	205,586
Securities held to maturity, Unrealized Gains	16	4,683
Securities held to maturity, Unrealized Losses	17,121	449
Securities held to maturity, fair value	180,438	209,820
Allowance for credit losses, Amortized Cost	(5)	(5)
Held-to-maturity securities, net , Amortized Cost	197,538	205,581
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	15,793
Securities available for sale, Unrealized Gains	0	195
Securities available for sale, Unrealized Losses	3,428	97
Securities available for sale	21,107	15,891
Securities held to maturity, Amortized Cost	16,325
Securities held to maturity, Unrealized Gains	0
Securities held to maturity, Unrealized Losses	850
Securities held to maturity, fair value	15,475
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	102,419	111,399
Securities held to maturity, Unrealized Gains	16	2,412
Securities held to maturity, Unrealized Losses	8,975	300
Securities held to maturity, fair value	93,460	113,511
Collateralized Mortgage Obligations [Member] \| Federal National Mortgage Association [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities available for sale, Unrealized Gains	0	26
Securities available for sale, Unrealized Losses	2,489	433
Securities held to maturity, Amortized Cost	8,576	19,485
Securities held to maturity, Unrealized Gains	0	368
Securities held to maturity, Unrealized Losses	1,084	3
Securities held to maturity, fair value	7,918	19,850
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 available for sale, Unrealized Gains	0	0
Securities available for sale, Unrealized Losses	4,139	477
Securities held to maturity, Amortized Cost		23,840
Securities held to maturity, Unrealized Gains		565
Securities held to maturity, Unrealized Losses	1,247	0
Securities held to maturity, fair value		24,405
Collateralized Mortgage Obligations [Member] \| Government National Mortgage Association [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities held to maturity, Amortized Cost	4,421	5,481
Securities held to maturity, Unrealized Gains	0	84
Securities held to maturity, Unrealized Losses	314	0
Securities held to maturity, fair value	4,107	5,565
Collateralized Mortgage Obligations [Member] \| Privately Issued [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities available for sale, Unrealized Gains	344	410
Securities available for sale, Unrealized Losses	0	0
Mortgage-Backed Securities [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities available for sale, Amortized Cost	1,124,940	1,169,042
Securities available for sale, Unrealized Gains	345	8,251
Securities available for sale, Unrealized Losses	180,861	14,669
Securities available for sale	944,424	1,162,624
Securities held to maturity, Amortized Cost	78,799	94,187
Securities held to maturity, Unrealized Gains	0	2,271
Securities held to maturity, Unrealized Losses	7,296	149
Securities held to maturity, fair value	71,503	96,309
Mortgage-Backed Securities [Member] \| Federal National Mortgage Association [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities available for sale, Unrealized Gains	0	6,565
Securities available for sale, Unrealized Losses	83,012	5,242
Securities held to maturity, Amortized Cost		9,275
Securities held to maturity, Unrealized Gains	0	411
Securities held to maturity, Unrealized Losses	658	0
Securities held to maturity, fair value		9,686
Mortgage-Backed Securities [Member] \| Federal Home Loan Mortgage Corporation [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities available for sale, Unrealized Gains	0	952
Securities available for sale, Unrealized Losses	74,634	6,435
Securities held to maturity, Amortized Cost	8,009	8,706
Securities held to maturity, Unrealized Gains	0	137
Securities held to maturity, Unrealized Losses	1,485	144
Securities held to maturity, fair value	6,524	8,699
Mortgage-Backed Securities [Member] \| Government National Mortgage Association [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities available for sale, Unrealized Gains	1
Securities available for sale, Unrealized Losses	16,587	2,082
Securities held to maturity, Amortized Cost	23,854	27,400
Securities held to maturity, Unrealized Gains	0	706
Securities held to maturity, Unrealized Losses	2,508	2
Securities held to maturity, fair value	21,346	28,104
Collateralized Mortgage-Backed Securities Government National Mortgage Association [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities available for sale, Amortized Cost	114,019
Securities available for sale	97,433
Collateralized Mortgage-Backed Federal National Mortgage Association Certificates and Obligations [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities available for sale, Amortized Cost	556,883	576,163
Securities available for sale	473,871	577,486
Collateralized Mortgage-Back Federal Home Loan Mortgage Corporation Certificates and Obligations [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities available for sale, Amortized Cost	419,428	430,010
Securities available for sale	344,794	424,527
Securities held to maturity, Amortized Cost	18,749
Securities held to maturity, fair value	17,502
Collateralized Mortgage-Backed Government National Mortgage Association Certificates and Obligations [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities available for sale, Amortized Cost		122,266
Securities available for sale, Unrealized Gains		298
Securities available for sale		120,482
Collateralized Federal National Mortgage Association Certificates and Obligation [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities available for sale, Amortized Cost	12,569	15,346
Securities available for sale	10,080	14,939
Securities held to maturity, Amortized Cost	15,190
Securities held to maturity, fair value	14,106
Collateralized Federal Home Loan Mortgage Corporation Certificates and Obligations [Member]
Schedule of Debt Securities Available For Sale and Held To Maturity Securities [Line Item]
Securities available for sale, Amortized Cost	22,041	25,257
Securities available for sale	17,902	24,780
Collateralized 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	$ 344	$ 410

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