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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 | 6 Months Ended
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Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015
Schedule of Trading Securities and Other Trading Assets [Line Items] |  |  |  |
Investment income | $ 703 | $ 872 | $ 1,043 | $ 1,428
Realized gain, net | 250 | 2,279 | 394 | 2,573
Realized losses | (978) | (245) | (3,374) | (870)
Expenses and taxes | (446) | (574) | (693) | (834)
Decrease in deferred preneed funeral receipts held in trust | $ 471 | $ (2,332) | $ 2,630 | $ (2,297)

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