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Commitments and Contingencies (Tables) | 9 Months Ended
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Sep. 30, 2021
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |
Schedule of fair falue for off-balance sheet risks | The following table presents the commitments to extend credit and standby letters of credit as of September 30, 2021 and December 31, 2020:
(Dollars in thousands) | September 30, 2021 |  | December 31, 2020
Unused commitments to extend credit | $ | 12,775,929 |  |  | $ | 12,098,417 |
Standby letters of credit | 116,302 |  |  | 129,819 |

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