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Summary of Significant Accounting Policies (Tables) | 6 Months Ended
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Jun. 30, 2020
Summary of Significant Accounting Policies |
Schedule of breakdown of the provision for credit losses | ​
​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended |  | Six Months Ended
(dollars in thousands) | ​ | June 30, 2020 | ​ | June 30, 2020
Provision for credit losses- loans |  | 19,599 |  | 33,909
Provision for credit losses- AFS debt securities |  | 138 |  | 138
Total provision for credit losses |  | 19,737 |  | 34,047

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