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Sale of Subsidiary (Narrative) (Details) - Discontinued Operations, Disposed of by Sale - Avon $ in Thousands | 12 Months Ended
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Dec. 31, 2018 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |
Percentage of investment in Eastern Re. Ltd transferred | 40.00%
Net cash proceeds | $ 25,159

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