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Subsequent Events (Details) $ in Millions |  | 9 Months Ended
--- | --- | ---
Oct. 30, 2020 USD ($) shares | Sep. 30, 2020 USD ($) location
Empire Bancorp Inc |  |
Subsequent Event [Line Items] |  |
Total loan |  | $ 672.3
Merger related expenses |  | $ 1.5
Number Of Branches | location |  | 4
Subsequent Event | Empire Bancorp Inc |  |
Subsequent Event [Line Items] |  |
Fair value of consideration transferred | $ 87.5 |
Business acquisition, cash payment | $ 54.8 |
Shares isssued on acquisition | shares | 2,557,286 |
Subsequent Event | Empire Bancorp Inc |  |
Subsequent Event [Line Items] |  |
Ownership interest acquired (as a percent) | 100.00% |

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