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Preneed Trust Investments Preneed Trust Investments (Unrealized losses on cemetery merchandise and service trust investments) (Details) - Preneed Cemetery Trust Investments - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Gain (Loss) on Securities [Line Items] |  |
Fair market value, In Loss Position Less than12 months | $ 11,382 | $ 31,502
Unrealized Losses, In Loss Position Less than12 months | (1,111) | (5,469)
Fair market value, In Loss Position Greater than12 months | 9,858 | 6,346
Unrealized Losses, In Loss Position Greater than12 months | (3,161) | (2,664)
Fair market value, Total | 21,240 | 37,848
Unrealized Losses, Total | (4,272) | (8,133)
Corporate debt |  |
Gain (Loss) on Securities [Line Items] |  |
Fair market value, In Loss Position Less than12 months | 268 | 2,140
Unrealized Losses, In Loss Position Less than12 months | (42) | (245)
Fair market value, In Loss Position Greater than12 months | 758 | 895
Unrealized Losses, In Loss Position Greater than12 months | (201) | (266)
Fair market value, Total | 1,026 | 3,035
Unrealized Losses, Total | (243) | (511)
Preferred stock |  |
Gain (Loss) on Securities [Line Items] |  |
Fair market value, In Loss Position Less than12 months | 1,368 | 9,918
Unrealized Losses, In Loss Position Less than12 months | (168) | (813)
Fair market value, In Loss Position Greater than12 months | 4,520 | 443
Unrealized Losses, In Loss Position Greater than12 months | (481) | (213)
Fair market value, Total | 5,888 | 10,361
Unrealized Losses, Total | (649) | (1,026)
Mortgage-backed securities |  |
Gain (Loss) on Securities [Line Items] |  |
Fair market value, In Loss Position Less than12 months | 4,135 | 5,253
Unrealized Losses, In Loss Position Less than12 months | (164) | (399)
Fair market value, In Loss Position Greater than12 months | 0 | 3,767
Unrealized Losses, In Loss Position Greater than12 months | 0 | (747)
Fair market value, Total | 4,135 | 9,020
Unrealized Losses, Total | (164) | (1,146)
Mortgage-backed securities |  |
Gain (Loss) on Securities [Line Items] |  |
Fair market value, In Loss Position Less than12 months | 0 | 0
Unrealized Losses, In Loss Position Less than12 months | 0 | 0
Fair market value, In Loss Position Greater than12 months | 402 | 51
Unrealized Losses, In Loss Position Greater than12 months | (114) | (14)
Fair market value, Total | 402 | 51
Unrealized Losses, Total | (114) | (14)
Fixed Income |  |
Gain (Loss) on Securities [Line Items] |  |
Fair market value, In Loss Position Less than12 months | 5,079 | 14,191
Unrealized Losses, In Loss Position Less than12 months | (652) | (4,012)
Fair market value, In Loss Position Greater than12 months | 4,178 | 1,190
Unrealized Losses, In Loss Position Greater than12 months | (2,365) | (1,424)
Fair market value, Total | 9,257 | 15,381
Unrealized Losses, Total | (3,017) | $ (5,436)
Mutual Fund [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Fair market value, In Loss Position Less than12 months | 532 |
Unrealized Losses, In Loss Position Less than12 months | (85) |
Fair market value, In Loss Position Greater than12 months | 0 |
Unrealized Losses, In Loss Position Greater than12 months | 0 |
Fair market value, Total | 532 |
Unrealized Losses, Total | $ (85) |

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