Investment Securities (Amortized Cost and Fair Value of Investment Securities) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Schedule of Held-to-maturity Securities And Available-for-sale Securities [Line Items]
Amortized cost: Total available-for-sale debt securities	$ 738,753	$ 381,088
Gross unrealized gains: Available-for-sale debt securities	8,566	11,753
Gross unrealized losses: Available-for-sale debt securities	(8,339)	(421)
Fair value: Available-for-sale debt securities	738,980	392,420
Agency - GSE [Member]
Schedule of Held-to-maturity Securities And Available-for-sale Securities [Line Items]
Amortized cost: Total available-for-sale debt securities	119,399	45,146
Gross unrealized gains: Available-for-sale debt securities	204	392
Gross unrealized losses: Available-for-sale debt securities	(2,600)	(91)
Fair value: Available-for-sale debt securities	117,003	45,447
Obligations of States and Political Subdivisions [Member]
Schedule of Held-to-maturity Securities And Available-for-sale Securities [Line Items]
Amortized cost: Total available-for-sale debt securities	360,680	192,385
Gross unrealized gains: Available-for-sale debt securities	6,708	7,480
Gross unrealized losses: Available-for-sale debt securities	(2,678)	(152)
Fair value: Available-for-sale debt securities	364,710	199,713
MBS - GSE Residential [Member]
Schedule of Held-to-maturity Securities And Available-for-sale Securities [Line Items]
Amortized cost: Total available-for-sale debt securities	258,674	143,557
Gross unrealized gains: Available-for-sale debt securities	1,654	3,881
Gross unrealized losses: Available-for-sale debt securities	(3,061)	(178)
Fair value: Available-for-sale debt securities	$ 257,267	$ 147,260

Schedule of Held-to-maturity Securities And Available-for-sale Securities [Line Items]

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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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Amount, before tax, of unrealized loss 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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