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Merger with Pioneer Bancshares, Inc. - Supplemental Pro Forma Information (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Business Combination and Asset Acquisition [Abstract] |  |
Net interest income | $ 251,783 | $ 201,501
Provision for loan losses | 17,200 | 350
Net interest income after provision for loan losses | 234,583 | 201,151
Noninterest income | 90,993 | 129,373
Noninterest expenses | 229,307 | 258,544
Income before income taxes | 96,269 | 71,980
Provision for income taxes | 19,508 | 13,413
Net income | 76,761 | 58,567
Earnings per share: |  |
Net income available to common stockholders, basic | 76,761 | 58,567
Net income available to common stockholders, diluted | $ 76,761 | $ 58,567
Basic (in dollars per share) | $ 3.09 | $ 2.36
Diluted (in dollars per share) | $ 3.01 | $ 2.30

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