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Trust Investments (Cost and fair market value associated with preneed funeral trust investments) (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Preneed Cemetery Trust Investments [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	$ 94,304	$ 82,573
Unrealized Gains	10,228	13,856
Unrealized Losses	(5,335)	(8,341)
Fair Market Value	99,197	88,088
Preneed cemetery trust investments	$ 100,318	$ 89,081
Preneed cemetery trust investments, fair market value as a percentage of cost (in Percent)	105.20%	106.70%
Preneed Cemetery Trust Investments [Member] | Mortgage-backed securities
Debt and Equity Securities, FV-NI [Line Items]
Cost		$ 272
Unrealized Gains		0
Unrealized Losses		(159)
Fair Market Value		113
Preneed Cemetery Trust Investments [Member] | Accrued Investment Income [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	$ 1,121	993
Fair Market Value	1,121	993
Preneed Funeral Trust Investments [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	106,087	97,700
Unrealized Gains	9,266	13,125
Unrealized Losses	(4,788)	(7,570)
Fair Market Value	110,565	103,255
Preneed cemetery trust investments	$ 111,587	$ 104,166
Preneed cemetery trust investments, fair market value as a percentage of cost (in Percent)	104.20%	105.70%
Preneed Funeral Trust Investments [Member] | Accrued Investment Income [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	$ 1,022	$ 911
Fair Market Value	1,022	911
Fair Value, Inputs, Level 1 [Member] | Preneed Cemetery Trust Investments [Member] | Cash and Money Market Accounts [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	1,645	1,859
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Market Value	1,645	1,859
Fair Value, Inputs, Level 1 [Member] | Preneed Cemetery Trust Investments [Member] | Common stock
Debt and Equity Securities, FV-NI [Line Items]
Cost	39,372	30,253
Unrealized Gains	4,411	7,642
Unrealized Losses	(3,750)	(6,601)
Fair Market Value	40,033	31,294
Fair Value, Inputs, Level 1 [Member] | Preneed Funeral Trust Investments [Member] | Cash and Money Market Accounts [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	19,132	18,478
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Market Value	19,132	18,478
Fair Value, Inputs, Level 1 [Member] | Preneed Funeral Trust Investments [Member] | U.S. Treasury Debt [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	16,554	819
Unrealized Gains	2,224	6
Unrealized Losses	(749)	0
Fair Market Value	18,029	825
Fair Value, Inputs, Level 1 [Member] | Preneed Funeral Trust Investments [Member] | Common stock
Debt and Equity Securities, FV-NI [Line Items]
Cost	35,602	28,327
Unrealized Gains	4,055	7,364
Unrealized Losses	(3,357)	(6,052)
Fair Market Value	36,300	29,639
Fair Value, Inputs, Level 2 [Member] | Preneed Cemetery Trust Investments [Member] | Debt Security, Government, Non-US [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	17,434	15,953
Unrealized Gains	2,381	2,083
Unrealized Losses	(801)	(702)
Fair Market Value	19,014	17,334
Fair Value, Inputs, Level 2 [Member] | Preneed Cemetery Trust Investments [Member] | Corporate Debt [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	12,101	14,856
Unrealized Gains	1,484	1,820
Unrealized Losses	(18)	(358)
Fair Market Value	13,567	16,318
Fair Value, Inputs, Level 2 [Member] | Preneed Cemetery Trust Investments [Member] | Preferred Stock [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	12,366	11,886
Unrealized Gains	1,241	980
Unrealized Losses	(422)	(336)
Fair Market Value	13,185	12,530
Fair Value, Inputs, Level 2 [Member] | Preneed Cemetery Trust Investments [Member] | Fixed Income [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	11,358	7,494
Unrealized Gains	706	1,331
Unrealized Losses	(344)	(185)
Fair Market Value	11,720	8,640
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Debt Security, Government, Non-US [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	10,518	15,144
Unrealized Gains	1,325	2,018
Unrealized Losses	(17)	(634)
Fair Market Value	11,826	16,528
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Corporate Debt [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	11,011	13,292
Unrealized Gains	1,119	1,638
Unrealized Losses	(396)	(310)
Fair Market Value	11,734	14,620
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Preferred Stock [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	0	10,944
Unrealized Gains	0	900
Unrealized Losses	0	(298)
Fair Market Value	0	11,546
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Mortgage-backed securities
Debt and Equity Securities, FV-NI [Line Items]
Cost		293
Unrealized Gains		1
Unrealized Losses		(155)
Fair Market Value		139
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Fixed Income Securities [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	9,398	6,475
Unrealized Gains	539	1,198
Unrealized Losses	(269)	(121)
Fair Market Value	9,668	7,552
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Other Investments [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	3,846	3,928
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Market Value	$ 3,846	$ 3,928

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