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Trust Investments (Cost and fair market value associated with preneed funeral trust investments) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Preneed Cemetery Trust Investments
Debt and Equity Securities, FV-NI [Line Items]
Cost	$ 96,817
Unrealized Gains	12,039
Unrealized Losses	(5,992)
Fair Market Value	102,864
Preneed cemetery trust investments	$ 103,808	$ 89,081
Market value as a percentage of cost	106.20%	106.70%
Preneed Cemetery Trust Investments | Foreign Debt
Debt and Equity Securities, FV-NI [Line Items]
Cost		$ 15,953
Unrealized Gains		2,083
Unrealized Losses		(702)
Fair Market Value		17,334
Preneed Cemetery Trust Investments | Preferred stock
Debt and Equity Securities, FV-NI [Line Items]
Cost		14,856
Unrealized Gains		1,820
Unrealized Losses		(358)
Fair Market Value		16,318
Preneed Cemetery Trust Investments | Preferred Stock [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost		11,886
Unrealized Gains		980
Unrealized Losses		(336)
Fair Market Value		12,530
Preneed Cemetery Trust Investments | 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 | Accrued Investment Income [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	$ 944	993
Fair Market Value	944	993
Preneed Cemetery Trust Investments | Trust Securities [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost		82,573
Unrealized Gains		13,856
Unrealized Losses		(8,341)
Fair Market Value		88,088
Preneed Funeral Trust Investments
Debt and Equity Securities, FV-NI [Line Items]
Cost	110,476	97,700
Unrealized Gains	10,961	13,125
Unrealized Losses	(5,296)	(7,570)
Fair Market Value	116,141	103,255
Preneed cemetery trust investments	$ 116,973	$ 104,166
Market value as a percentage of cost	105.10%	105.70%
Preneed Funeral Trust Investments | Accrued Investment Income [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	$ 832	$ 911
Fair Market Value	832	$ 911
Perpetual Care Trust Investments
Debt and Equity Securities, FV-NI [Line Items]
Cost	$ 32,194
Market value as a percentage of cost	106.60%	106.60%
Perpetual Care Trust Investments | Accrued Investment Income [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	$ 689	$ 808
Fair Market Value	689	808
Perpetual Care Trust Investments | Trust Securities [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	67,290	65,665
Unrealized Gains	8,794	11,128
Unrealized Losses	(4,373)	(6,773)
Fair Market Value	71,711	70,020
Fair Value, Level 1 | Preneed Cemetery Trust Investments | Cash and Cash Equivalents
Debt and Equity Securities, FV-NI [Line Items]
Cost	3,088	1,859
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Market Value	3,088	1,859
Fair Value, Level 1 | Preneed Cemetery Trust Investments | Common Stock [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	40,992	30,253
Unrealized Gains	6,906	7,642
Unrealized Losses	(4,079)	(6,601)
Fair Market Value	43,819	31,294
Fair Value, Level 1 | Preneed Funeral Trust Investments | Cash and Cash Equivalents
Debt and Equity Securities, FV-NI [Line Items]
Cost	23,438	18,478
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Market Value	23,438	18,478
Fair Value, Level 1 | Preneed Funeral Trust Investments | U.S. treasury debt
Debt and Equity Securities, FV-NI [Line Items]
Cost		819
Unrealized Gains		6
Unrealized Losses		0
Fair Market Value		825
Fair Value, Level 1 | Preneed Funeral Trust Investments | Common Stock [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	36,694	28,327
Unrealized Gains	6,417	7,364
Unrealized Losses	(3,574)	(6,052)
Fair Market Value	39,537	29,639
Fair Value, Level 1 | Perpetual Care Trust Investments | Cash and Cash Equivalents
Debt and Equity Securities, FV-NI [Line Items]
Cost	1,447	686
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Market Value	1,447	686
Fair Value, Level 1 | Perpetual Care Trust Investments | Common Stock [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	27,853	23,662
Unrealized Gains	4,990	6,108
Unrealized Losses	(3,008)	(5,255)
Fair Market Value	29,835	24,515
Fair Value, Level 2 | Preneed Cemetery Trust Investments | Foreign Debt
Debt and Equity Securities, FV-NI [Line Items]
Cost	15,846
Unrealized Gains	2,025
Unrealized Losses	(953)
Fair Market Value	16,918
Fair Value, Level 2 | Preneed Cemetery Trust Investments | Preferred stock
Debt and Equity Securities, FV-NI [Line Items]
Cost	12,965
Unrealized Gains	1,374
Unrealized Losses	(49)
Fair Market Value	14,290
Fair Value, Level 2 | Preneed Cemetery Trust Investments | Preferred Stock [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	12,455
Unrealized Gains	1,111
Unrealized Losses	(344)
Fair Market Value	13,222
Fair Value, Level 2 | Preneed Cemetery Trust Investments | Equity Securities [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	28
Unrealized Gains	8
Unrealized Losses	0
Fair Market Value	36
Fair Value, Level 2 | Preneed Cemetery Trust Investments | Fixed income
Debt and Equity Securities, FV-NI [Line Items]
Cost	11,443	7,494
Unrealized Gains	615	1,331
Unrealized Losses	(567)	(185)
Fair Market Value	11,491	8,640
Fair Value, Level 2 | Preneed Funeral Trust Investments | Foreign Debt
Debt and Equity Securities, FV-NI [Line Items]
Cost	14,936	15,144
Unrealized Gains	1,874	2,018
Unrealized Losses	(887)	(634)
Fair Market Value	15,923	16,528
Fair Value, Level 2 | Preneed Funeral Trust Investments | Preferred stock
Debt and Equity Securities, FV-NI [Line Items]
Cost	11,231	13,292
Unrealized Gains	1,223	1,638
Unrealized Losses	(46)	(310)
Fair Market Value	12,408	14,620
Fair Value, Level 2 | Preneed Funeral Trust Investments | Preferred Stock [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	11,001	10,944
Unrealized Gains	986	900
Unrealized Losses	(319)	(298)
Fair Market Value	11,668	11,546
Fair Value, Level 2 | Preneed Funeral Trust Investments | 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, Level 2 | Preneed Funeral Trust Investments | Equity Securities [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	26
Unrealized Gains	7
Unrealized Losses	0
Fair Market Value	33
Fair Value, Level 2 | Preneed Funeral Trust Investments | Fixed Income Securities
Debt and Equity Securities, FV-NI [Line Items]
Cost	9,396	6,475
Unrealized Gains	454	1,198
Unrealized Losses	(470)	(121)
Fair Market Value	9,380	7,552
Fair Value, Level 2 | Preneed Funeral Trust Investments | Other investments
Debt and Equity Securities, FV-NI [Line Items]
Cost	3,754	3,928
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Market Value	3,754	3,928
Fair Value, Level 2 | Perpetual Care Trust Investments | Foreign Debt
Debt and Equity Securities, FV-NI [Line Items]
Cost	10,949	12,539
Unrealized Gains	1,401	1,641
Unrealized Losses	(647)	(582)
Fair Market Value	11,703	13,598
Fair Value, Level 2 | Perpetual Care Trust Investments | Preferred stock
Debt and Equity Securities, FV-NI [Line Items]
Cost	9,139	11,684
Unrealized Gains	1,065	1,506
Unrealized Losses	(32)	(240)
Fair Market Value	10,172	12,950
Fair Value, Level 2 | Perpetual Care Trust Investments | Preferred Stock [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	9,742	10,444
Unrealized Gains	803	819
Unrealized Losses	(226)	(355)
Fair Market Value	10,319	10,908
Fair Value, Level 2 | Perpetual Care Trust Investments | Mortgage-backed securities
Debt and Equity Securities, FV-NI [Line Items]
Cost		206
Unrealized Gains		0
Unrealized Losses		(121)
Fair Market Value		85
Fair Value, Level 2 | Perpetual Care Trust Investments | Equity Securities [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	19
Unrealized Gains	5
Unrealized Losses	0
Fair Market Value	24
Fair Value, Level 2 | Perpetual Care Trust Investments | Fixed income
Debt and Equity Securities, FV-NI [Line Items]
Cost	8,141	6,444
Unrealized Gains	530	1,054
Unrealized Losses	(460)	(220)
Fair Market Value	$ 8,211	$ 7,278

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