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v3.23.1

Employee Retirement Plans (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2023
Employee Retirement Plans |
Schedule of company's pension expense | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended March 31,
​ |  | 2023 |  | 2022
​ | ​ | (Dollars in thousands)
Service cost | ​ | $ | 118 | ​ | $ | 112
Interest cost | ​ |  | 672 | ​ |  | 432
Expected return on plan assets | ​ |  | (577) | ​ |  | (752)
Net amortization and deferral | ​ |  | 134 | ​ | ​ | 208
Pension expense | ​ | $ | 347 | ​ | $ | —
​

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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