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Accumulated Other Comprehensive Income (Tables) | 3 Months Ended
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Mar. 31, 2019
Accumulated Other Comprehensive Income [Abstract] |
Summary Of Accumulated Other Comprehensive Income |
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﻿(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, 2019 | $ | 8,687 |  | $ | 3 |  | $ | (2,438) |  | $ | (137) |  | $ | 6,115
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﻿Change related to derivatives |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Total change in hedge fair value recorded in Other Comprehensive Income |  | — |  |  | — |  |  | — |  |  | (81) |  |  | (81)
﻿Amounts reclassified from accumulated other comprehensive income |  | — |  |  | — |  |  | — |  |  | 12 |  |  | 12
﻿Net change related to derivatives |  | — |  |  | — |  |  | — |  |  | (69) |  |  | (69)
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﻿Net current-period other comprehensive income (loss) |  | 1,526 |  |  | 2 |  |  | 51 |  |  | (69) |  |  | 1,510
﻿Balance at March 31, 2019 | $ | 10,213 |  | $ | 5 |  | $ | (2,387) |  | $ | (206) |  | $ | 7,625
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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + 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=114867106&loc=SL7669686-108580 + Details
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