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Commitments and Contingencies (Tables) | 9 Months Ended
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Sep. 30, 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:
(dollars in thousands) | September 30, 2020 |  | December 31, 2019
Commitments to extend credit |  | $ | 2,251,106 |  |  |  | $ | 1,910,805 |
Standby letters of credit |  | 88,529 |  |  |  | 80,040 |
Total |  | $ | 2,339,635 |  |  |  | $ | 1,990,845 |
Unfunded Loan Commitments, Allowance For Credit Loss | The activity in the allowance for credit losses on unfunded loan commitments is summarized as of the dates presented:
(dollars in thousands) | Three Months Ended September 30, 2020 |  | Three Months Ended September 30, 2019
Balance at beginning of period |  | $ | 7,004 |  |  |  | $ | 2,346 |
Provision for credit losses |  | (1,816) |  |  |  | 95 |
Total |  | $ | 5,188 |  |  |  | $ | 2,441 |
(dollars in thousands) | Nine Months Ended September 30, 2020 |  | Nine Months Ended September 30, 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 |  | 727 |  |  |  | 302 |
Total |  | $ | 5,188 |  |  |  | $ | 2,441 |

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