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Trust Investments (Cost and fair market values associated with the trust investments held in perpetual care trust) (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Perpetual Care Trust Invesments [Member]
Gain (Loss) on Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	$ 67,079	$ 65,665
Unrealized Gains	7,737	11,128
Unrealized Losses	(3,990)	(6,773)
Fair Market Value	70,826	70,020
Preneed cemetery trust investments	$ 71,640	$ 70,828
Preneed cemetery trust investments, fair market value as a percentage of cost (in Percent)	105.60%	106.60%
Perpetual Care Trust Invesments [Member] | Accrued Investment Income [Member]
Gain (Loss) on Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	$ 814	$ 808
Fair Market Value	814	808
Preneed Funeral Trust Investments [Member]
Gain (Loss) on Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	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]
Gain (Loss) on Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	$ 1,022	$ 911
Fair Market Value	1,022	911
Fair Value, Inputs, Level 1 [Member] | Perpetual Care Trust Invesments [Member] | Cash and Money Market Accounts [Member]
Gain (Loss) on Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	662	686
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Market Value	662	686
Fair Value, Inputs, Level 1 [Member] | Perpetual Care Trust Invesments [Member] | Common stock
Gain (Loss) on Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	27,383	23,662
Unrealized Gains	3,383	6,108
Unrealized Losses	(2,831)	(5,255)
Fair Market Value	27,935	24,515
Fair Value, Inputs, Level 1 [Member] | Preneed Funeral Trust Investments [Member] | Cash and Money Market Accounts [Member]
Gain (Loss) on Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	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] | Common stock
Gain (Loss) on Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	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] | Perpetual Care Trust Invesments [Member] | Debt Security, Government, Non-US [Member]
Gain (Loss) on Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	12,228	12,539
Unrealized Gains	1,679	1,641
Unrealized Losses	(556)	(582)
Fair Market Value	13,351	13,598
Fair Value, Inputs, Level 2 [Member] | Perpetual Care Trust Invesments [Member] | Corporate debt
Gain (Loss) on Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	8,723	11,684
Unrealized Gains	1,167	1,506
Unrealized Losses	(12)	(240)
Fair Market Value	9,878	12,950
Fair Value, Inputs, Level 2 [Member] | Perpetual Care Trust Invesments [Member] | Preferred Stock [Member]
Gain (Loss) on Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	9,841	10,444
Unrealized Gains	909	819
Unrealized Losses	(284)	(355)
Fair Market Value	10,466	10,908
Fair Value, Inputs, Level 2 [Member] | Perpetual Care Trust Invesments [Member] | Mortgage-backed securities
Gain (Loss) on Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis		206
Unrealized Gains		0
Unrealized Losses		(121)
Fair Market Value		85
Fair Value, Inputs, Level 2 [Member] | Perpetual Care Trust Invesments [Member] | Other Investments [Member]
Gain (Loss) on Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	8,223	6,444
Unrealized Gains	596	1,054
Unrealized Losses	(307)	(220)
Fair Market Value	8,512	7,278
Fair Value, Inputs, Level 2 [Member] | Perpetual Care Trust Invesments [Member] | Equity Securities [Member]
Gain (Loss) on Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	19
Unrealized Gains	3
Unrealized Losses	0
Fair Market Value	22
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Debt Security, Government, Non-US [Member]
Gain (Loss) on Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	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
Gain (Loss) on Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	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]
Gain (Loss) on Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	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
Gain (Loss) on Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis		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]
Gain (Loss) on Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	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]
Gain (Loss) on Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	3,846	3,928
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Market Value	3,846	$ 3,928
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Equity Securities [Member]
Gain (Loss) on Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	26
Unrealized Gains	4
Unrealized Losses	0
Fair Market Value	$ 30

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