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Preneed Trust Investments (Preneed cemetery trust investment security transactions) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
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	$ 315,000	$ 474,000	1,214,000	$ 1,755,000
Realized gain, net	1,376,000	0	2,247,000	2,215,000
Realized losses	(1,141,000)	0	(2,498,000)	(1,312,000)
Expenses and taxes	(365,000)	(336,000)	(637,000)	(1,213,000)
Increase (decrease) in deferred preneed cemetery receipts held in trust	$ (185,000)	$ (138,000)	$ (326,000)	$ (1,445,000)

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