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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

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