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Accumulated Other Comprehensive Income (Tables) | 3 Months Ended
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Mar. 31, 2021
Accumulated Other Comprehensive Income [Abstract] |
Summary Of Accumulated Other Comprehensive Income |
(Dollars in thousands) | Foreign ‎Currency ‎Items |  | Unrealized ‎Gain (Losses) ‎on Available- ‎for-Sale ‎Investments |  | Accrued ‎Pension ‎Service Costs |  | Hedge ‎Accounting ‎Reserve |  | Total
Balance at January 1, 2021 | $ | 14,966 |  | $ | (12) |  | $ | (2,135) |  | $ | (317) |  | $ | 12,502
Change related to derivatives |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total change in hedge fair value recorded in Other Comprehensive Income |  | — |  |  | — |  |  | — |  |  | 1 |  |  | 1
Amounts reclassified from accumulated other comprehensive income |  | — |  |  | — |  |  | — |  |  | 60 |  |  | 60
Net change related to derivatives |  | — |  |  | — |  |  | — |  |  | 61 |  |  | 61
Net current-period other comprehensive income (loss) |  | (2,657) |  |  | (1) |  |  | 52 |  |  | 61 |  |  | (2,545)
Balance at March 31, 2021 | $ | 12,309 |  | $ | (13) |  | $ | (2,083) |  | $ | (256) |  | $ | 9,957

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