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Preneed Trust Investments (Preneed funeral trust investment security transactions) (Details) - Preneed Funeral Trust Investments [Member] - Interest Income and Other, Net [Member] - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Debt and Equity Securities, FV-NI [Line Items] |  |  |  |
Investment income | $ 328 | $ 362 | $ 1,310 | $ 1,253
Realized gain, net | 1,114 | 1,425 | 4,920 | 4,332
Realized losses | (1,540) | (1,232) | (1,964) | (2,623)
Expenses and taxes | (226) | (190) | (511) | (668)
Decrease in deferred preneed funeral receipts held in trust | $ 324 | $ (365) | $ (3,755) | $ (2,294)

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