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Investment Securities Held to Maturity Securities by Type (Details) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
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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

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- Definition Amount, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 14 -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919253-210447 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953401-111524 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27232-111563 + Details
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