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Trust Investments (Cost and fair market values associated with preneed cemetery trust investments) (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Preneed Cemetery Trust Investments [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | $ 83,953 | $ 82,573
Unrealized Gains | 14,424 | 13,856
Unrealized Losses | (4,716) | (8,341)
Fair Market Value | 93,661 | 88,088
Preneed cemetery trust investments | $ 94,882 | $ 89,081
Preneed cemetery trust investments, fair market value as a percentage of cost (in Percent) | 111.60% | 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 | $ 1,221 | 993
Fair Market Value | 1,221 | 993
Preneed Funeral Trust Investments [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 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] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | $ 1,131 | $ 911
Fair Market Value | 1,131 | 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 | 1,464 | 1,859
Unrealized Gains | 0 | 0
Unrealized Losses | 0 | 0
Fair Market Value | 1,464 | 1,859
Fair Value, Inputs, Level 1 [Member] | Preneed Cemetery Trust Investments [Member] | Common stock |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 31,925 | 30,253
Unrealized Gains | 7,912 | 7,642
Unrealized Losses | (3,508) | (6,601)
Fair Market Value | 36,329 | 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 | 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 |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 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] | Preneed Cemetery Trust Investments [Member] | Debt Security, Government, Non-US [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 15,996 | 15,953
Unrealized Gains | 2,244 | 2,083
Unrealized Losses | (620) | (702)
Fair Market Value | 17,620 | 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 | 14,509 | 14,856
Unrealized Gains | 1,849 | 1,820
Unrealized Losses | (91) | (358)
Fair Market Value | 16,267 | 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 | 11,922 | 11,886
Unrealized Gains | 689 | 980
Unrealized Losses | (360) | (336)
Fair Market Value | 12,251 | 12,530
Fair Value, Inputs, Level 2 [Member] | Preneed Cemetery Trust Investments [Member] | Mortgage-backed securities |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 0 |
Unrealized Gains | 0 |
Unrealized Losses | 0 |
Fair Market Value | 0 |
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 | 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 [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 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] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 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 |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost |  | 293
Unrealized Gains |  | 1
Unrealized Losses |  | (155)
Fair Market Value |  | $ 139

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