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Trust Investments (Preneed cemetery trust investment security transactions) (Details) - Preneed Cemetery Trust Investments [Member] - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Debt and Equity Securities, FV-NI [Line Items]
Unrealized Gain (Loss) on Investments	$ 9,708	$ (16,305)
Interest Income and Other, Net [Member]
Debt and Equity Securities, FV-NI [Line Items]
Investment income	467	319
Realized gain, net	4,092	1,916
Realized losses	(2,518)	(1,372)
Expenses and taxes	(327)	(187)
Increase (decrease) in deferred preneed cemetery receipts held in trust	$ (11,422)	$ 15,629

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