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Employee Benefit Plans (Tables) | 9 Months Ended
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Sep. 30, 2023
Employee Benefit Plans |
Schedule of net periodic benefit costs | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended September 30, | ​ | Nine Months Ended September 30,
(Dollars in thousands) |  | 2023 |  | 2022 |  | 2023 |  | 2022
Components of net periodic benefit cost: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Service cost, included in salaries and employee benefits | ​ | $ | 344 | ​ | $ | 459 | ​ | $ | 1,032 | ​ | $ | 1,378
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Other components of net periodic benefit cost: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Interest cost | ​ |  | 182 | ​ |  | 123 | ​ |  | 546 | ​ |  | 369
Expected return on plan assets | ​ |  | (321) | ​ |  | (415) | ​ |  | (963) | ​ |  | (1,245)
Amortization of prior service credit | ​ |  | (17) | ​ |  | (17) | ​ |  | (51) | ​ |  | (51)
Recognized net actuarial losses | ​ |  | 42 | ​ |  | 10 | ​ |  | 128 | ​ |  | 29
Other components of net periodic benefit cost, included in other noninterest expense | ​ | ​ | (114) | ​ | ​ | (299) | ​ | ​ | (340) | ​ | ​ | (898)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net periodic benefit cost | ​ | $ | 230 | ​ | $ | 160 | ​ | $ | 692 | ​ | $ | 480
​

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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 715 -SubTopic 20 -Subparagraph (h) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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