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Commitments and Contingencies (Tables) | 3 Months Ended
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Mar. 31, 2022
Commitments and Contingencies Disclosure [Abstract] |
Schedule of Commitments and Letters of Credit | The following table sets forth our commitments and letters of credit as of the dates presented:
(dollars in thousands) | March 31, 2022 |  | December 31, 2021
Commitments to extend credit |  | $ | 2,481,275 |  |  |  | $ | 2,583,957 |
Standby letters of credit |  | 79,550 |  |  |  | 87,335 |
Total |  | $ | 2,560,825 |  |  |  | $ | 2,671,292 |
Allowance for Credit Loss for Unfunded Loan Commitments | The following table presents activity in the allowance for credit losses on unfunded loan commitments as of the dates presented:
| Three Months Ended March 31, |  |  |
(dollars in thousands) | 2022 |  | 2021 |  |  |  |  |
Balance at beginning of period |  | $ | 5,189 |  |  |  | $ | 4,467 |  |  |  |  |  |  |  |
Provision for credit losses |  | 186 |  |  |  | (164) |  |  |  |  |  |  |  |
Total |  | $ | 5,375 |  |  |  | $ | 4,303 |  |  |  |  |  |  |  |

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