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Preneed Trust Investments (Preneed cemetery trust investment security transactions) (Details) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |  |  |
Fair value measurements, transfers between Level 1 and Level 2 |  |  | $ 0 |
Preneed Cemetery Trust Investments [Member] | Interest Income and Other, Net [Member] |  |  |  |
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |  |  |
Investment income | $ 474,000 | $ 578,000 | 1,755,000 | $ 1,546,000
Realized gain, net | 0 | 126,000 | 2,215,000 | 415,000
Realized losses | 0 | (673,000) | (1,312,000) | (4,081,000)
Expenses and taxes | (336,000) | (139,000) | (1,213,000) | (832,000)
Increase (decrease) in deferred preneed cemetery receipts held in trust | $ (138,000) | $ 108,000 | $ (1,445,000) | $ 2,952,000

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