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Trust Investments (Cost and fair market value associated with preneed funeral trust investments) (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Preneed Cemetery Trust Investments [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | $ 94,304 | $ 82,573
Unrealized Gains | 10,228 | 13,856
Unrealized Losses | (5,335) | (8,341)
Fair Market Value | 99,197 | 88,088
Preneed cemetery trust investments | $ 100,318 | $ 89,081
Preneed cemetery trust investments, fair market value as a percentage of cost (in Percent) | 105.20% | 106.70%
Preneed Cemetery Trust Investments [Member] | 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 [Member] | Accrued Investment Income [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | $ 1,121 | 993
Fair Market Value | 1,121 | 993
Preneed Funeral Trust Investments [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 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] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | $ 1,022 | $ 911
Fair Market Value | 1,022 | 911
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 | 1,645 | 1,859
Unrealized Gains | 0 | 0
Unrealized Losses | 0 | 0
Fair Market Value | 1,645 | 1,859
Fair Value, Inputs, Level 1 [Member] | Preneed Cemetery Trust Investments [Member] | Common stock |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 39,372 | 30,253
Unrealized Gains | 4,411 | 7,642
Unrealized Losses | (3,750) | (6,601)
Fair Market Value | 40,033 | 31,294
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 | 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] | U.S. Treasury Debt [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 16,554 | 819
Unrealized Gains | 2,224 | 6
Unrealized Losses | (749) | 0
Fair Market Value | 18,029 | 825
Fair Value, Inputs, Level 1 [Member] | Preneed Funeral Trust Investments [Member] | Common stock |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 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] | Preneed Cemetery Trust Investments [Member] | Debt Security, Government, Non-US [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 17,434 | 15,953
Unrealized Gains | 2,381 | 2,083
Unrealized Losses | (801) | (702)
Fair Market Value | 19,014 | 17,334
Fair Value, Inputs, Level 2 [Member] | Preneed Cemetery Trust Investments [Member] | Corporate Debt [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 12,101 | 14,856
Unrealized Gains | 1,484 | 1,820
Unrealized Losses | (18) | (358)
Fair Market Value | 13,567 | 16,318
Fair Value, Inputs, Level 2 [Member] | Preneed Cemetery Trust Investments [Member] | Preferred Stock [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 12,366 | 11,886
Unrealized Gains | 1,241 | 980
Unrealized Losses | (422) | (336)
Fair Market Value | 13,185 | 12,530
Fair Value, Inputs, Level 2 [Member] | Preneed Cemetery Trust Investments [Member] | Fixed Income [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 11,358 | 7,494
Unrealized Gains | 706 | 1,331
Unrealized Losses | (344) | (185)
Fair Market Value | 11,720 | 8,640
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 | 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 [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 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] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 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 |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost |  | 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] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 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] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 3,846 | 3,928
Unrealized Gains | 0 | 0
Unrealized Losses | 0 | 0
Fair Market Value | $ 3,846 | $ 3,928

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