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Preneed Trust Investments (Cost and fair market values associated with preneed funeral trust investments) (Details) - Preneed Funeral Trust Investments - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | $ 90,993 | $ 88,638
Unrealized Gains | 1,450 | 7,574
Unrealized Losses | (8,177) | (3,610)
Fair Market Value | 84,266 | 92,602
Preneed cemetery trust investments, at market value | $ 84,803 | $ 93,341
Market value as a percentage of cost | 92.60% | 104.50%
Accrued investment income |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | $ 537 | $ 739
Fair Market Value | 537 | 739
Fair Value, Level 1 | Cash and money market accounts |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 31,375 | 14,349
Unrealized Gains | 0 | 0
Unrealized Losses | 0 | 0
Fair Market Value | 31,375 | 14,349
Fair Value, Level 1 | U.S. treasury debt |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 1,319 | 1,490
Unrealized Gains | 3 | 10
Unrealized Losses | (19) | (15)
Fair Market Value | 1,303 | 1,485
Fair Value, Level 1 | Common stock |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 24,803 | 26,129
Unrealized Gains | 887 | 5,253
Unrealized Losses | (5,389) | (2,468)
Fair Market Value | 20,301 | 28,914
Fair Value, Level 2 | Municipal bonds |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost |  | 0
Unrealized Gains |  | 0
Unrealized Losses |  | 0
Fair Market Value |  | 0
Fair Value, Level 2 | Foreign Debt |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 3,748 | 4,870
Unrealized Gains | 44 | 298
Unrealized Losses | (503) | (189)
Fair Market Value | 3,289 | 4,979
Fair Value, Level 2 | Corporate debt |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 14,195 | 18,963
Unrealized Gains | 294 | 1,197
Unrealized Losses | (1,025) | (278)
Fair Market Value | 13,464 | 19,882
Fair Value, Level 2 | Preferred stock |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 11,500 | 16,335
Unrealized Gains | 54 | 501
Unrealized Losses | (1,194) | (585)
Fair Market Value | 10,360 | 16,251
Fair Value, Level 2 | Collateralized Mortgage Backed Securities [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 772 | 1,187
Unrealized Gains | 168 | 263
Unrealized Losses | (18) | (27)
Fair Market Value | 922 | 1,423
Fair Value, Level 2 | Fixed Income Securities |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 275 | 1,974
Unrealized Gains | 0 | 52
Unrealized Losses | (29) | (48)
Fair Market Value | 246 | 1,978
Fair Value, Level 2 | Other investments |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 3,006 | 3,341
Unrealized Gains | 0 | 0
Unrealized Losses | 0 | 0
Fair Market Value | $ 3,006 | $ 3,341

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