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Pension Reconciliation of Changed in Benefit Obligations, Plan Assets, and Funded Status of Pension Benefits (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Curtailment gain due to plan freeze | $ 0 | $ 416 | $ 0
Change in Benefit Obligation: |  |  |
Benefit Obligation at Beginning of Period | 33,569 | 36,280 |
Service Cost | 209 | 302 | 375
Interest Cost | 1,338 | 1,265 | 1,201
Actuarial Loss (Gain) | 4,865 | (2,645) |
Plan Amendments | 1,728 | 0 |
Plan Curtailments | 0 | (126) |
Benefits and Other Payments | (1,513) | (1,507) |
Benefit Obligation at End of Period | 40,196 | 33,569 | 36,280
Change in Plan Assets: |  |  |
Fair Value of Plan Assets at Beginning of Period | 0 | 0 |
Company Contributions | 1,513 | 1,507 |
Benefits and Other Payments | (1,513) | (1,507) |
Fair Value of Plan Assets at End of Period | 0 | 0 | $ 0
Funded Status: |  |  |
Current Liabilities | (1,587) | (1,578) |
Noncurrent Liabilities | (38,609) | (31,991) |
Net Obligation Recognized | (40,196) | (33,569) |
Amounts Recognized in Accumulated Other Comprehensive Loss Consist of: |  |  |
Net Actuarial Loss | 15,361 | 10,738 |
Prior Service Cost (Credit) | 1,727 | (17) |
Total | 17,088 | 10,721 |
Net Amount Recognized | 12,605 | 7,904 |
Accumulated Defined Benefit Plans Adjustment Attributable to Parent |  |  |
Amounts Recognized in Accumulated Other Comprehensive Loss Consist of: |  |  |
Less: Tax Benefit | $ 4,483 | $ 2,817 |

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- Definition Amount, before tax, of accumulated other comprehensive (income) loss for cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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