Investment Securities (Gross Unrealized Losses and Fair Value by Length of Continuous Unrealized Loss Position) (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	$ 30,540	$ 41,412
Available-for-sale securities, continuous unrealized loss position, less than 12 Months, unrealized losses	1,952	594
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, fair value	54,920	20,930
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, unrealized losses	11,516	669
Available-for-sale securities, continuous unrealized loss position, fair value	85,460	62,342
Available-for-sale securities, continuous unrealized loss position, unrealized losses	13,468	1,263
Held-to-maturity securities, continuous unrealized loss position, less than 12 Months, fair value	28,024	291,677
Held-to-maturity securities, continuous unrealized loss position, less than 12 Months, unrealized losses	4,629	2,850
Held-to-maturity securities, continuous unrealized loss position, more than 12 Months, fair value	473,121	26,283
Held-to-maturity securities, continuous unrealized loss position, more than 12 Months, unrealized losses	64,945	638
Held-to-maturity securities, continuous unrealized loss position, fair value	501,145	317,960
Held-to-maturity securities, continuous unrealized loss position, unrealized losses	69,574	3,488
Mortgage-backed [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	28,663	39,851
Available-for-sale securities, continuous unrealized loss position, less than 12 Months, unrealized losses	1,809	593
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, fair value	37,083	3,562
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, unrealized losses	7,757	36
Available-for-sale securities, continuous unrealized loss position, fair value	65,746	43,413
Available-for-sale securities, continuous unrealized loss position, unrealized losses	9,566	629
Held-to-maturity securities, continuous unrealized loss position, less than 12 Months, fair value	16,923	226,918
Held-to-maturity securities, continuous unrealized loss position, less than 12 Months, unrealized losses	3,607	1,836
Held-to-maturity securities, continuous unrealized loss position, more than 12 Months, fair value	338,740	14,564
Held-to-maturity securities, continuous unrealized loss position, more than 12 Months, unrealized losses	51,435	412
Held-to-maturity securities, continuous unrealized loss position, fair value	355,663	241,482
Held-to-maturity securities, continuous unrealized loss position, unrealized losses	55,042	2,248
U.S. Government Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value		1,561
Available-for-sale securities, continuous unrealized loss position, less than 12 Months, unrealized losses		1
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, fair value	17,837	17,368
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, unrealized losses	3,759	633
Available-for-sale securities, continuous unrealized loss position, fair value	17,837	18,929
Available-for-sale securities, continuous unrealized loss position, unrealized losses	3,759	634
Held-to-maturity securities, continuous unrealized loss position, less than 12 Months, fair value	4,861	64,268
Held-to-maturity securities, continuous unrealized loss position, less than 12 Months, unrealized losses	762	1,005
Held-to-maturity securities, continuous unrealized loss position, more than 12 Months, fair value	129,485	11,719
Held-to-maturity securities, continuous unrealized loss position, more than 12 Months, unrealized losses	13,099	226
Held-to-maturity securities, continuous unrealized loss position, fair value	134,346	75,987
Held-to-maturity securities, continuous unrealized loss position, unrealized losses	13,861	1,231
Other Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	1,877
Available-for-sale securities, continuous unrealized loss position, less than 12 Months, unrealized losses	143
Available-for-sale securities, continuous unrealized loss position, fair value	1,877
Available-for-sale securities, continuous unrealized loss position, unrealized losses	143
Held-to-maturity securities, continuous unrealized loss position, less than 12 Months, fair value	6,240	491
Held-to-maturity securities, continuous unrealized loss position, less than 12 Months, unrealized losses	260	9
Held-to-maturity securities, continuous unrealized loss position, more than 12 Months, fair value	4,113
Held-to-maturity securities, continuous unrealized loss position, more than 12 Months, unrealized losses	387
Held-to-maturity securities, continuous unrealized loss position, fair value	10,353	491
Held-to-maturity securities, continuous unrealized loss position, unrealized losses	647	$ 9
States and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, fair value	783
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, unrealized losses	24
Available-for-sale securities, continuous unrealized loss position, fair value	783
Available-for-sale securities, continuous unrealized loss position, unrealized losses	$ 24