Trust Investments (Cost and fair market value associated with preneed funeral trust investments) (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Preneed Cemetery Trust Investments [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	$ 79,600	$ 73,009
Unrealized Gains	8,316	5,098
Unrealized Losses	(11,042)	(4,272)
Fair Market Value	76,874	73,835
Preneed cemetery trust investments	$ 77,968	$ 74,572
Preneed cemetery trust investments, fair market value as a percentage of cost (in Percent)	96.60%	101.10%
Preneed Cemetery Trust Investments [Member] | Mortgage-backed securities
Debt and Equity Securities, FV-NI [Line Items]
Cost		$ 517
Unrealized Gains		0
Unrealized Losses		(114)
Fair Market Value		403
Preneed Cemetery Trust Investments [Member] | Accrued Investment Income [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	$ 1,094	737
Fair Market Value	1,094	737
Preneed Funeral Trust Investments [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	96,874	97,047
Unrealized Gains	8,050	5,672
Unrealized Losses	(10,238)	(4,173)
Fair Market Value	94,686	98,546
Preneed cemetery trust investments	$ 95,730	$ 99,246
Preneed cemetery trust investments, fair market value as a percentage of cost (in Percent)	97.70%	101.50%
Preneed Funeral Trust Investments [Member] | Accrued Investment Income [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	$ 1,044	$ 700
Fair Market Value	1,044	700
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	1,332	5,729
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Market Value	1,332	5,729
Fair Value, Inputs, Level 1 [Member] | Preneed Cemetery Trust Investments [Member] | Common stock
Debt and Equity Securities, FV-NI [Line Items]
Cost	26,137	28,569
Unrealized Gains	4,729	2,766
Unrealized Losses	(7,701)	(3,017)
Fair Market Value	23,165	28,318
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	18,546	24,160
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Market Value	18,546	24,160
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	819	822
Unrealized Gains	10	0
Unrealized Losses	0	0
Fair Market Value	829	822
Fair Value, Inputs, Level 1 [Member] | Preneed Funeral Trust Investments [Member] | Common stock
Debt and Equity Securities, FV-NI [Line Items]
Cost	24,925	27,652
Unrealized Gains	4,659	2,773
Unrealized Losses	(7,171)	(2,869)
Fair Market Value	22,413	27,556
Fair Value, Inputs, Level 1 [Member] | Preneed Funeral Trust Investments [Member] | Equity Securities [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost		772
Unrealized Gains		617
Unrealized Losses		(4)
Fair Market Value		1,385
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	15,664	5,609
Unrealized Gains	1,148	312
Unrealized Losses	(1,162)	(243)
Fair Market Value	15,650	5,678
Fair Value, Inputs, Level 2 [Member] | Preneed Cemetery Trust Investments [Member] | Corporate Debt [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	16,594	16,916
Unrealized Gains	1,188	1,044
Unrealized Losses	(813)	(649)
Fair Market Value	16,969	17,311
Fair Value, Inputs, Level 2 [Member] | Preneed Cemetery Trust Investments [Member] | Preferred Stock [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	12,526	14,206
Unrealized Gains	523	904
Unrealized Losses	(927)	(164)
Fair Market Value	12,122	14,946
Fair Value, Inputs, Level 2 [Member] | Preneed Cemetery Trust Investments [Member] | Mortgage-backed securities
Debt and Equity Securities, FV-NI [Line Items]
Cost	323
Unrealized Gains	0
Unrealized Losses	(189)
Fair Market Value	134
Fair Value, Inputs, Level 2 [Member] | Preneed Cemetery Trust Investments [Member] | Fixed Income [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	7,024	1,463
Unrealized Gains	728	72
Unrealized Losses	(250)	(85)
Fair Market Value	7,502	1,450
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	15,132	5,587
Unrealized Gains	1,133	309
Unrealized Losses	(1,083)	(232)
Fair Market Value	15,182	5,664
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Corporate Debt [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	15,258	16,109
Unrealized Gains	1,086	992
Unrealized Losses	(766)	(646)
Fair Market Value	15,578	16,455
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Preferred Stock [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	11,772	14,094
Unrealized Gains	484	874
Unrealized Losses	(858)	(198)
Fair Market Value	11,398	14,770
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Mortgage-backed securities
Debt and Equity Securities, FV-NI [Line Items]
Cost	351	585
Unrealized Gains	0	0
Unrealized Losses	(187)	(117)
Fair Market Value	164	468
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Fixed Income Securities [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	6,128	4,364
Unrealized Gains	678	107
Unrealized Losses	(173)	(107)
Fair Market Value	6,633	4,364
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Other Investments [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	3,943	2,902
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Market Value	$ 3,943	$ 2,902