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Employee Benefit Plans (Tables) | 3 Months Ended
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Mar. 31, 2022
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] |
The components of net periodic benefit cost | The components of net periodic benefit cost (income) related to our employee benefit plans are as follows (in thousands):
|  | Three Months Ended March 31,
|  | Retirement Plan |  | Acquired Retirement Plan |  | Restoration Plan
|  | 2022 |  | 2021 |  | 2022 |  | 2021 |  | 2022 |  | 2021
Interest cost |  | $ | 680 |  |  | $ | 628 |  |  | $ | 26 |  |  | $ | 24 |  |  | $ | 139 |  |  | $ | 121 |
Expected return on assets |  | (1,461) |  |  | (1,437) |  |  | (59) |  |  | (58) |  |  | — |  |  | — |
Net loss amortization |  | 151 |  |  | 520 |  |  | — |  |  | 3 |  |  | 55 |  |  | 118 |
Net periodic benefit cost (income) |  | $ | (630) |  |  | $ | (289) |  |  | $ | (33) |  |  | $ | (31) |  |  | $ | 194 |  |  | $ | 239 |

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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 http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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