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Cemetery Perpetual Care Trust Investments (Perpetual care trust investment security transactions recorded in Cemetery revenue) (Details) - Perpetual Care Trust Invesments [Member] - Cemetery Revenue [Member] - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Debt and Equity Securities, FV-NI [Line Items] |  |  |  |
Investment income | $ 1,107 | $ 1,463 | $ 2,194 | $ 2,996
Realized gains (losses), net | 10 | (398) | (280) | (715)
Total | $ 1,117 | $ 1,065 | $ 1,914 | $ 2,281

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