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Commitments and Contingencies (Tables) | 12 Months Ended
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Dec. 31, 2020
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:
| December 31,
(dollars in thousands) | 2020 |  | 2019
Commitments to extend credit | $ | 2,185,752 |  |  | $ | 1,910,805 |
Standby letters of credit | 89,095 |  |  | 80,040 |
Total | $ | 2,274,847 |  |  | $ | 1,990,845 |
Unfunded Loan Commitments, Allowance For Credit Loss | The activity in the unfunded loan commitments reserve is summarized as of the dates presented:
(dollars in thousands) | December 31, 2020 |  | December 31, 2019
Balance at beginning of period |  | $ | 3,112 |  |  |  | $ | 2,139 |
Impact of adopting ASU 2016-13 at January 1, 2020 |  | 1,349 |  |  |  | — |
Balance after adoption of ASU 2016-13 |  | 4,461 |  |  |  | 2,139 |
Provision for credit losses |  | 6 |  |  |  | 973 |
Total |  | $ | 4,467 |  |  |  | $ | 3,112 |

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