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v3.23.3

Regulatory Capital (Tables) | 9 Months Ended
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Sep. 30, 2023
Notes Tables |
Summary of compliance with banking regulatory capital standards | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | September 30, 2023 |  | December 31, 2022 |
​ | ​ | ​ | ​ | ​ | Percent of | ​ | ​ | ​ | ​ | Percent of |
​ |  | Amount |  | Assets |  | Amount |  | Assets |
​ |  | (Dollars in thousands) | ​
Tier I (leverage) capital: |  | ​ |  |  |  |  | ​ |  |  |  | ​
Capital level | ​ | $ | 918,167 |  | 10.61 | % | $ | 915,628 |  | 10.56 | %
Requirement to be well-capitalized | ​ |  | 432,771 |  | 5.00 | ​ |  | 433,667 |  | 5.00 | ​
Excess | ​ |  | 485,396 |  | 5.61 | ​ |  | 481,961 |  | 5.56 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Common Equity Tier I risk-based capital: | ​ |  |  |  |  | ​ |  |  |  |  | ​
Capital level | ​ | $ | 918,167 |  | 13.49 | % | $ | 915,628 |  | 13.79 | %
Requirement to be well-capitalized | ​ |  | 442,255 |  | 6.50 | ​ |  | 431,734 |  | 6.50 | ​
Excess | ​ |  | 475,912 |  | 6.99 | ​ |  | 483,894 |  | 7.29 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Tier I risk-based capital: | ​ |  |  |  |  | ​ |  |  |  |  | ​
Capital level | ​ | $ | 918,167 |  | 13.49 | % | $ | 915,628 |  | 13.79 | %
Requirement to be well-capitalized | ​ |  | 544,314 |  | 8.00 | ​ |  | 531,365 |  | 8.00 | ​
Excess | ​ |  | 373,853 |  | 5.49 | ​ |  | 384,263 |  | 5.79 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total risk-based capital: | ​ |  |  |  |  | ​ |  |  |  |  | ​
Capital level | ​ | $ | 956,955 |  | 14.06 | % | $ | 954,457 |  | 14.37 | %
Requirement to be well-capitalized | ​ |  | 680,393 |  | 10.00 | ​ |  | 664,206 |  | 10.00 | ​
Excess | ​ |  | 276,562 |  | 4.06 | ​ |  | 290,251 |  | 4.37 | ​
Holding Company |
Notes Tables |
Summary of compliance with banking regulatory capital standards | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | September 30, 2023 |  | December 31, 2022 |
​ | ​ | ​ | ​ | ​ | Percent of | ​ | ​ | ​ | ​ | Percent of |
​ |  | Amount |  | Assets |  | Amount |  | Assets |
​ | ​ | (Dollars in thousands) |
Tier I (leverage) capital: |  | ​ |  |  |  |  | ​ |  |  |  | ​
Capital level | ​ | $ | 739,364 |  | 8.54 | % | $ | 746,880 |  | 8.61 | %
Requirement to be well-capitalized | ​ |  | 432,714 |  | 5.00 | ​ |  | 433,607 |  | 5.00 | ​
Excess | ​ |  | 306,650 |  | 3.54 | ​ |  | 313,273 |  | 3.61 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Common Equity Tier I risk-based capital: | ​ |  | ​ |  |  | ​ |  | ​ |  |  | ​
Capital level | ​ | $ | 692,914 |  | 10.19 | % | $ | 698,258 |  | 10.52 | %
Requirement to be well-capitalized | ​ |  | 442,155 |  | 6.50 | ​ |  | 431,635 |  | 6.50 | ​
Excess | ​ |  | 250,759 |  | 3.69 | ​ |  | 266,623 |  | 4.02 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Tier I risk-based capital: | ​ |  | ​ |  |  | ​ |  | ​ |  |  | ​
Capital level | ​ | $ | 739,364 |  | 10.87 | % | $ | 746,880 |  | 11.25 | %
Requirement to be well-capitalized | ​ |  | 544,191 |  | 8.00 | ​ |  | 531,243 |  | 8.00 | ​
Excess | ​ |  | 195,173 |  | 2.87 | ​ |  | 215,637 |  | 3.25 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total risk-based capital: | ​ |  | ​ |  |  | ​ |  | ​ |  |  | ​
Capital level | ​ | $ | 968,152 |  | 14.23 | % | $ | 975,709 |  | 14.69 | %
Requirement to be well-capitalized | ​ |  | 680,239 |  | 10.00 | ​ |  | 664,054 |  | 10.00 | ​
Excess | ​ |  | 287,913 |  | 4.23 | ​ |  | 311,655 |  | 4.69 | ​
​

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