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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands | Jun. 30, 2020 | Dec. 31, 2019
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Consolidated Balance Sheets |  |
Common stock, par value (in dollars per share) | $ 0.01 | $ 0.01
Common stock, authorized | 100,000,000 | 100,000,000
Common stock, issued | 32,224,756 | 33,241,496
Common stock, outstanding | 32,224,756 | 33,241,496
Investment securities available for sale, amortized cost | $ 750,653 | $ 839,192
Investment securities available for sale, allowance for credit losses | 138 | 0
Time deposits | $ 100,000 | $ 100,000

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