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Cemetery Perpetual Care Trust Investments (Cost and fair market values associated with the trust investments held in perpetual care trust funds) (Details) - Perpetual Care Trust Invesments [Member] - USD ($) $ in Thousands | Sep. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Debt and Equity Securities, FV-NI [Line Items] |  |
Cemetary perpetual care trust investments | $ 48,397 | $ 44,071
Fair market value as a percentage of cost | 96.90% | 90.80%
Trust Securities [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | $ 49,348 | $ 48,092
Unrealized Gains | 2,210 | 934
Unrealized Losses | (3,716) | (5,339)
Fair Market Value | 47,842 | 43,687
Accrued Investment Income [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 555 | 384
Fair Market Value | 555 | 384
Fair Value, Inputs, Level 1 [Member] | Cash and Money Market Accounts [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 4,182 | 11,144
Unrealized Gains | 0 | 0
Unrealized Losses | 0 | 0
Fair Market Value | 4,182 | 11,144
Fair Value, Inputs, Level 1 [Member] | Common stock |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 16,101 | 15,562
Unrealized Gains | 687 | 542
Unrealized Losses | (2,577) | (3,395)
Fair Market Value | 14,211 | 12,709
Fair Value, Inputs, Level 2 [Member] | Debt Security, Government, Non-US [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 4,683 | 2,872
Unrealized Gains | 98 | 27
Unrealized Losses | (336) | (385)
Fair Market Value | 4,445 | 2,514
Fair Value, Inputs, Level 2 [Member] | Corporate Debt [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 11,935 | 9,956
Unrealized Gains | 654 | 227
Unrealized Losses | (500) | (730)
Fair Market Value | 12,089 | 9,453
Fair Value, Inputs, Level 2 [Member] | Preferred Stock [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 10,191 | 8,141
Unrealized Gains | 708 | 37
Unrealized Losses | (94) | (820)
Fair Market Value | 10,805 | 7,358
Fair Value, Inputs, Level 2 [Member] | Mortgage Backed Securities [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 355 | 417
Unrealized Gains | 0 | 101
Unrealized Losses | (132) | (9)
Fair Market Value | 223 | $ 509
Fair Value, Inputs, Level 2 [Member] | Fixed Income [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 1,901 |
Unrealized Gains | 63 |
Unrealized Losses | (77) |
Fair Market Value | $ 1,887 |

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