Investment Securities (Gross Unrealized Losses and Fair Value by Length of Continuous Unrealized Loss Position) (Details) - USD ($) $ in Thousands	Mar. 31, 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	$ 43,410	$ 41,412
Available-for-sale securities, continuous unrealized loss position, less than 12 Months, unrealized losses	581	594
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, fair value	20,930	20,930
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, unrealized losses	2,794	669
Available-for-sale securities, continuous unrealized loss position, fair value	64,340	62,342
Available-for-sale securities, continuous unrealized loss position, unrealized losses	3,375	1,263
Held-to-maturity securities, continuous unrealized loss position, less than 12 Months, fair value	321,254	291,677
Held-to-maturity securities, continuous unrealized loss position, less than 12 Months, unrealized losses	12,749	2,850
Held-to-maturity securities, continuous unrealized loss position, more than 12 Months, fair value	57,394	26,283
Held-to-maturity securities, continuous unrealized loss position, more than 12 Months, unrealized losses	3,895	638
Held-to-maturity securities, continuous unrealized loss position, fair value	378,648	317,960
Held-to-maturity securities, continuous unrealized loss position, unrealized losses	16,644	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	39,851	39,851
Available-for-sale securities, continuous unrealized loss position, less than 12 Months, unrealized losses	490	593
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, fair value	3,562	3,562
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, unrealized losses	1,614	36
Available-for-sale securities, continuous unrealized loss position, fair value	43,413	43,413
Available-for-sale securities, continuous unrealized loss position, unrealized losses	2,104	629
Held-to-maturity securities, continuous unrealized loss position, less than 12 Months, fair value	253,725	226,918
Held-to-maturity securities, continuous unrealized loss position, less than 12 Months, unrealized losses	10,536	1,836
Held-to-maturity securities, continuous unrealized loss position, more than 12 Months, fair value	36,962	14,564
Held-to-maturity securities, continuous unrealized loss position, more than 12 Months, unrealized losses	2,580	412
Held-to-maturity securities, continuous unrealized loss position, fair value	290,687	241,482
Held-to-maturity securities, continuous unrealized loss position, unrealized losses	13,116	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	1,561
Available-for-sale securities, continuous unrealized loss position, less than 12 Months, unrealized losses	65	1
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, fair value	17,368	17,368
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, unrealized losses	1,180	633
Available-for-sale securities, continuous unrealized loss position, fair value	18,929	18,929
Available-for-sale securities, continuous unrealized loss position, unrealized losses	1,245	634
Held-to-maturity securities, continuous unrealized loss position, less than 12 Months, fair value	62,586	64,268
Held-to-maturity securities, continuous unrealized loss position, less than 12 Months, unrealized losses	2,157	1,005
Held-to-maturity securities, continuous unrealized loss position, more than 12 Months, fair value	20,432	11,719
Held-to-maturity securities, continuous unrealized loss position, more than 12 Months, unrealized losses	1,315	226
Held-to-maturity securities, continuous unrealized loss position, fair value	83,018	75,987
Held-to-maturity securities, continuous unrealized loss position, unrealized losses	3,472	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	1,998
Available-for-sale securities, continuous unrealized loss position, less than 12 Months, unrealized losses	26
Available-for-sale securities, continuous unrealized loss position, fair value	1,998
Available-for-sale securities, continuous unrealized loss position, unrealized losses	26
Held-to-maturity securities, continuous unrealized loss position, less than 12 Months, fair value	4,943	491
Held-to-maturity securities, continuous unrealized loss position, less than 12 Months, unrealized losses	56	9
Held-to-maturity securities, continuous unrealized loss position, fair value	4,943	491
Held-to-maturity securities, continuous unrealized loss position, unrealized losses	$ 56	$ 9