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Trust Investments (Cost and fair market values associated with preneed funeral trust investments) (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Preneed Cemetery Trust Investments
Debt and Equity Securities, FV-NI [Line Items]
Cost	$ 103,323	$ 96,817
Unrealized Gains	3,428	12,039
Unrealized Losses	(17,565)	(5,992)
Fair Market Value	89,186	102,864
Preneed cemetery trust investments	$ 90,130	$ 103,808
Market value as a percentage of cost	86.30%	106.20%
Preneed Cemetery Trust Investments | Accrued investment income
Debt and Equity Securities, FV-NI [Line Items]
Cost	$ 944	$ 944
Fair Market Value	944	944
Preneed Funeral Trust Investments
Debt and Equity Securities, FV-NI [Line Items]
Cost	112,990	110,476
Unrealized Gains	3,094	10,961
Unrealized Losses	(14,888)	(5,296)
Fair Market Value	101,196	116,141
Preneed cemetery trust investments	$ 102,028	$ 116,973
Market value as a percentage of cost	89.60%	105.10%
Preneed Funeral Trust Investments | Accrued investment income
Debt and Equity Securities, FV-NI [Line Items]
Cost	$ 832	$ 832
Fair Market Value	832	832
Level 1 | Preneed Cemetery Trust Investments | Cash and money market accounts
Debt and Equity Securities, FV-NI [Line Items]
Cost	6,852	3,088
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Market Value	6,852	3,088
Level 1 | Preneed Cemetery Trust Investments | Common stock
Debt and Equity Securities, FV-NI [Line Items]
Cost	45,169	40,992
Unrealized Gains	2,483	6,906
Unrealized Losses	(7,816)	(4,079)
Fair Market Value	39,836	43,819
Level 1 | Preneed Funeral Trust Investments | Cash and money market accounts
Debt and Equity Securities, FV-NI [Line Items]
Cost	26,473	23,438
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Market Value	26,473	23,438
Level 1 | Preneed Funeral Trust Investments | Common stock
Debt and Equity Securities, FV-NI [Line Items]
Cost	39,081	36,694
Unrealized Gains	2,234	6,417
Unrealized Losses	(6,655)	(3,574)
Fair Market Value	34,660	39,537
Level 1 | Preneed Funeral Trust Investments | Equity
Debt and Equity Securities, FV-NI [Line Items]
Cost		26
Unrealized Gains		7
Unrealized Losses		0
Fair Market Value		33
Level 1 | Preneed Funeral Trust Investments | U.S. Treasury Debt [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	551
Unrealized Gains	0
Unrealized Losses	(51)
Fair Market Value	500
Level 2 | Preneed Cemetery Trust Investments | U.S. agency obligations
Debt and Equity Securities, FV-NI [Line Items]
Cost	803
Unrealized Gains	0
Unrealized Losses	(76)
Fair Market Value	727
Level 2 | Preneed Cemetery Trust Investments | Foreign debt
Debt and Equity Securities, FV-NI [Line Items]
Cost	11,146	15,846
Unrealized Gains	533	2,025
Unrealized Losses	(1,024)	(953)
Fair Market Value	10,655	16,918
Level 2 | Preneed Cemetery Trust Investments | Corporate debt
Debt and Equity Securities, FV-NI [Line Items]
Cost	14,073	12,965
Unrealized Gains	37	1,374
Unrealized Losses	(3,311)	(49)
Fair Market Value	10,799	14,290
Level 2 | Preneed Cemetery Trust Investments | Preferred stock
Debt and Equity Securities, FV-NI [Line Items]
Cost	12,568	12,455
Unrealized Gains	367	1,111
Unrealized Losses	(1,665)	(344)
Fair Market Value	11,270	13,222
Level 2 | Preneed Cemetery Trust Investments | Mortgage-backed securities
Debt and Equity Securities, FV-NI [Line Items]
Cost	79
Unrealized Gains	0
Unrealized Losses	(7)
Fair Market Value	72
Level 2 | Preneed Cemetery Trust Investments | Equity
Debt and Equity Securities, FV-NI [Line Items]
Cost	309	28
Unrealized Gains	0	8
Unrealized Losses	(63)	0
Fair Market Value	246	36
Level 2 | Preneed Cemetery Trust Investments | Fixed income
Debt and Equity Securities, FV-NI [Line Items]
Cost	12,324	11,443
Unrealized Gains	8	615
Unrealized Losses	(3,603)	(567)
Fair Market Value	8,729	11,491
Level 2 | Preneed Funeral Trust Investments | Foreign debt
Debt and Equity Securities, FV-NI [Line Items]
Cost	10,018	14,936
Unrealized Gains	486	1,874
Unrealized Losses	(897)	(887)
Fair Market Value	9,607	15,923
Level 2 | Preneed Funeral Trust Investments | Corporate debt
Debt and Equity Securities, FV-NI [Line Items]
Cost	12,024	11,231
Unrealized Gains	32	1,223
Unrealized Losses	(2,772)	(46)
Fair Market Value	9,284	12,408
Level 2 | Preneed Funeral Trust Investments | Preferred stock
Debt and Equity Securities, FV-NI [Line Items]
Cost	10,898	11,001
Unrealized Gains	335	986
Unrealized Losses	(1,477)	(319)
Fair Market Value	9,756	11,668
Level 2 | Preneed Funeral Trust Investments | Equity
Debt and Equity Securities, FV-NI [Line Items]
Cost	282
Unrealized Gains	0
Unrealized Losses	(57)
Fair Market Value	225
Level 2 | Preneed Funeral Trust Investments | Fixed Income Securities [Member]
Debt and Equity Securities, FV-NI [Line Items]
Cost	10,028	9,396
Unrealized Gains	7	454
Unrealized Losses	(2,979)	(470)
Fair Market Value	7,056	9,380
Level 2 | Preneed Funeral Trust Investments | Other Investments
Debt and Equity Securities, FV-NI [Line Items]
Cost	3,635	3,754
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Market Value	$ 3,635	$ 3,754

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