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Preneed Trust Investments (Preneed funeral trust investment security transactions) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Debt and Equity Securities, FV-NI [Line Items]
Investment income	$ 5,934	$ 5,949	$ 6,451
Decrease (increase) in deferred preneed cemetery receipts held in trust	(4,579)	(5,111)	(6,017)
Preneed Funeral Trust Investments
Debt and Equity Securities, FV-NI [Line Items]
Investment income	1,623	2,420	2,344
Realized gains	6,662	2,386	2,287
Realized losses	(5,882)	(2,396)	(6,642)
Expenses and taxes	(885)	(1,290)	(1,174)
Decrease (increase) in deferred preneed cemetery receipts held in trust	$ (1,518)	$ (1,120)	$ 3,185

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