Investment Securities Held to Maturity Securities by Type (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	$ 492,229	$ 541,311
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	4	3,768
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	(54,353)	(8,428)
Securities held to maturity, fair value	437,880	536,651
US Government Agencies Residential Mortgage-backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	2,147	2,409
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	0	101
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	(136)	0
Securities held to maturity, fair value	2,011	2,510
US Government Agency Debt Securities Commercial [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	82,732	91,439
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	0	305
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	(10,228)	(1,939)
Securities held to maturity, fair value	72,504	89,805
Residential Mortgage Backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	350,888	387,848
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	0	2,800
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	(38,361)	(5,758)
Securities held to maturity, fair value	312,527	384,890
Obligations of U.S. Government-Sponsored Enterprises - Mortgage-Backed Securities - Commercial [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	6,056	7,309
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	0	148
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	(69)	0
Securities held to maturity, fair value	5,987	7,457
Obligations of States and Political Subdivisions [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	27,345	29,402
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	4	414
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	(2,052)	(103)
Securities held to maturity, fair value	25,297	29,713
Debt Security, Government, Non-US [Member]
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	1,000	1,000
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	0	0
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	(40)	(3)
Securities held to maturity, fair value	$ 960	$ 997