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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
	Mar. 31, 2019	Mar. 31, 2018
Debt and Equity Securities, FV-NI [Line Items]
Investment income	$ 573	$ 412
Realized gain, net	1,320	2,896
Realized losses	(583)	(609)
Expenses and taxes	(228)	(144)
Decrease in deferred preneed funeral receipts held in trust	$ (1,082)	$ (2,555)

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