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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, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Debt and Equity Securities, FV-NI [Line Items] |  |  |  |
Investment income | $ 373 | $ 328 | $ 1,235 | $ 1,310
Realized gain, net | 2,821 | 1,114 | 6,978 | 4,920
Realized losses | (911) | (1,540) | (4,093) | (1,964)
Expenses and taxes | (296) | (226) | (646) | (511)
Decrease in deferred preneed funeral receipts held in trust | $ (1,987) | $ 324 | $ (3,474) | $ (3,755)

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