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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	Mar. 31, 2021	Dec. 31, 2020
Perpetual Care Trust Invesments [Member]
Gain (Loss) on Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	$ 67,123	$ 65,665
Unrealized Gains	11,684	11,128
Unrealized Losses	(3,985)	(6,773)
Fair Market Value	74,822	70,020
Preneed cemetery trust investments	$ 75,815	$ 70,828
Preneed cemetery trust investments, fair market value as a percentage of cost (in Percent)	111.50%	106.60%
Perpetual Care Trust Invesments [Member] | Accrued Investment Income [Member]
Gain (Loss) on Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	$ 993	$ 808
Fair Market Value	993	808
Preneed Funeral Trust Investments [Member]
Gain (Loss) on Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	97,681	97,700
Unrealized Gains	13,504	13,125
Unrealized Losses	(4,185)	(7,570)
Fair Market Value	107,000	103,255
Preneed cemetery trust investments	$ 108,131	$ 104,166
Preneed cemetery trust investments, fair market value as a percentage of cost (in Percent)	109.50%	105.70%
Preneed Funeral Trust Investments [Member] | Accrued Investment Income [Member]
Gain (Loss) on Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	$ 1,131	$ 911
Fair Market Value	1,131	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	528	686
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Market Value	528	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	25,151	23,662
Unrealized Gains	6,436	6,108
Unrealized Losses	(2,945)	(5,255)
Fair Market Value	28,642	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	18,119	18,478
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Market Value	18,119	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	29,618	28,327
Unrealized Gains	7,546	7,364
Unrealized Losses	(3,120)	(6,052)
Fair Market Value	34,044	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	12,642	12,539
Unrealized Gains	1,775	1,641
Unrealized Losses	(508)	(582)
Fair Market Value	13,909	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	11,525	11,684
Unrealized Gains	1,540	1,506
Unrealized Losses	(69)	(240)
Fair Market Value	12,996	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	10,518	10,444
Unrealized Gains	558	819
Unrealized Losses	(299)	(355)
Fair Market Value	10,777	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	6,739	6,444
Unrealized Gains	1,374	1,054
Unrealized Losses	(164)	(220)
Fair Market Value	7,949	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	20
Unrealized Gains	1
Unrealized Losses
Fair Market Value	21
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	14,959	15,144
Unrealized Gains	2,142	2,018
Unrealized Losses	(551)	(634)
Fair Market Value	16,550	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	12,826	13,292
Unrealized Gains	1,639	1,638
Unrealized Losses	(87)	(310)
Fair Market Value	14,378	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	10,816	10,944
Unrealized Gains	637	900
Unrealized Losses	(340)	(298)
Fair Market Value	11,113	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	6,600	6,475
Unrealized Gains	1,534	1,198
Unrealized Losses	(87)	(121)
Fair Market Value	8,047	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	3,901	3,928
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Market Value	3,901	$ 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	1
Unrealized Losses	0
Fair Market Value	$ 27

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