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Investment Securities (Details 3) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
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Marketable Securities [Line Items] |  |
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | $ 167,465 | $ 246,831
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 9,609 | 4,155
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 163,255 | 49,528
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 16,447 | 872
Available-for-Sale Securities, Continuous Unrealized Loss Position, Fair Value | 330,720 | 296,359
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss | 26,056 | 5,027
US Treasury Securities [Member] |  |
Marketable Securities [Line Items] |  |
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | 42,805 | 14,479
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 1,940 | 264
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 12,919 | 958
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 2,839 | 36
Available-for-Sale Securities, Continuous Unrealized Loss Position, Fair Value | 55,724 | 15,437
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss | 4,779 | 300
US Government-sponsored Enterprises Debt Securities [Member] |  |
Marketable Securities [Line Items] |  |
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | 2,096 |
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 404 |
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value |  |
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss |  |
Available-for-Sale Securities, Continuous Unrealized Loss Position, Fair Value | 2,096 |
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss | 404 |
Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises [Member] |  |
Marketable Securities [Line Items] |  |
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | 104,236 | 200,238
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 6,523 | 3,156
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 144,072 | 48,570
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 12,992 | 836
Available-for-Sale Securities, Continuous Unrealized Loss Position, Fair Value | 248,308 | 248,808
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss | 19,515 | 3,992
Small Business Administration pools [Member] |  |
Marketable Securities [Line Items] |  |
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | 16,139 | 7,232
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 649 | 67
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 3,053 |
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 77 |
Available-for-Sale Securities, Continuous Unrealized Loss Position, Fair Value | 19,192 | 7,232
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss | 726 | 67
US States and Political Subdivisions Debt Securities [Member] |  |
Marketable Securities [Line Items] |  |
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value |  | 21,261
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss |  | 539
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value |  |
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss |  |
Available-for-Sale Securities, Continuous Unrealized Loss Position, Fair Value |  | 21,261
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss |  | 539
Corporate and other securities [Member] |  |
Marketable Securities [Line Items] |  |
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | 2,189 | 3,621
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 93 | 129
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 3,211 |
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 539 |
Available-for-Sale Securities, Continuous Unrealized Loss Position, Fair Value | 5,400 | 3,621
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss | $ 632 | $ 129

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