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Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020 | Sep. 30, 2020
--- | --- | --- | ---
Assets [Abstract] |  |  |
Securities to be held to maturity, fair value | $ 379,797 | $ 377,134 | $ 342,062
Stockholders' Equity [Abstract] |  |  |
Common stock par value (usd per share) | $ 0.01 | $ 0.01 | $ 0.01

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