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Preneed Trust Investments (Preneed cemetery trust investment security transactions) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Debt and Equity Securities, FV-NI [Line Items]
Fair value measurements, transfers between Level 1 and Level 2			$ 0
Preneed Cemetery Trust Investments [Member] | Interest Income and Other, Net [Member]
Debt and Equity Securities, FV-NI [Line Items]
Investment income	$ 323,000	$ 315,000	1,308,000	$ 1,214,000
Realized gain, net	1,180,000	1,376,000	5,001,000	2,247,000
Realized losses	(1,527,000)	(1,141,000)	(3,163,000)	(2,498,000)
Expenses and taxes	(396,000)	(365,000)	(1,081,000)	(637,000)
Increase (decrease) in deferred preneed cemetery receipts held in trust	$ 420,000	$ (185,000)	$ (2,065,000)	$ (326,000)

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