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Goodwill and other intangibles (Tables) | 3 Months Ended
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Mar. 31, 2025
Goodwill and other intangibles |
Schedule of goodwill and other acquired intangible assets | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, 2025
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Accumulated | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | Beginning | ​ | ​ | ​ | ​ | ​ | Impairment | ​ | ​ | Accumulated | ​ | ​ | Ending
(Dollars in thousands) |  | ​ | Balance |  | ​ | Additions |  | ​ | Charges |  | ​ | Amortization(1) |  | ​ | Balance
Goodwill | ​ | $ | 75,986 | ​ | $ | ​ | ​ | $ | ​ | ​ | $ | ​ | ​ | $ | 75,986
Total goodwill | ​ | $ | 75,986 | ​ | $ | ​ | ​ | $ | ​ | ​ | $ | ​ | ​ | $ | 75,986
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Core deposit intangible | ​ | $ | 33,299 | ​ | $ | ​ | ​ | $ | ​ | ​ | $ | 1,664 | ​ | $ | 31,635
Wealth management customer list intangible | ​ | ​ | 898 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 45 | ​ | ​ | 853
Total intangible assets, net | ​ | $ | 34,197 | ​ | $ | ​ | ​ | $ | ​ | ​ | $ | 1,709 | ​ | $ | 32,488
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2024
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Accumulated | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | Beginning | ​ | ​ | ​ | ​ | ​ | Impairment | ​ | ​ | Accumulated | ​ | ​ | Ending
(Dollars in thousands) | ​ | ​ | Balance | ​ | ​ | Additions | ​ | ​ | Charges | ​ | ​ | Amortization(1) | ​ | ​ | Balance
Goodwill | ​ | $ | 63,370 | ​ | $ | 12,616 | ​ | $ | ​ | ​ | $ | ​ | ​ | $ | 75,986
Total goodwill | ​ | $ | 63,370 | ​ | $ | 12,616 | ​ | $ | ​ | ​ | $ | ​ | ​ | $ | 75,986
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Core deposit intangible | ​ | $ | ​ | ​ | $ | 36,629 | ​ | $ | ​ | ​ | $ | 3,330 | ​ | $ | 33,299
Wealth management customer list intangible | ​ | ​ | ​ | ​ | ​ | 988 | ​ | ​ | ​ | ​ | ​ | 90 | ​ | ​ | 898
Total intangible assets, net | ​ | $ | ​ | ​ | $ | 37,617 | ​ | $ | ​ | ​ | $ | 3,420 | ​ | $ | 34,197
Summary of estimated amortization expense on intangible assets | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
(Dollars in thousands) |  | CDI | ​ | Wealth management customer list intangible | ​ | Total
2025 | ​ | $ | 4,662 | ​ | $ | 126 | ​ | $ | 4,788
2026 | ​ |  | 5,661 | ​ | ​ | 153 | ​ |  | 5,814
2027 | ​ |  | 4,995 | ​ |  | 135 | ​ |  | 5,130
2028 | ​ |  | 4,329 | ​ |  | 117 | ​ |  | 4,446
2029 | ​ | ​ | 3,663 | ​ | ​ | 99 | ​ | ​ | 3,762
Thereafter | ​ |  | 8,325 | ​ |  | 223 | ​ |  | 8,548
Total amortizing intangible | ​ | $ | 31,635 | ​ | $ | 853 | ​ | $ | 32,488
​

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- Definition Tabular disclosure of finite-lived intangible assets acquired as part of a business combination or through an asset purchase, by major class and in total, including the value of the asset acquired, any significant residual value (the expected value of the asset at the end of its useful life) and the weighted-average amortization period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-1 + Details
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