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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, 2016 | Dec. 31, 2015
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Gain (Loss) on Investments [Line Items] |  |
Fair market value, In Loss Position Less than12 months | $ 15,566 | $ 40,857
Unrealized Losses, In Loss Position Less than12 months | (745) | (5,864)
Fair market value, In Loss Position Greater than12 months | 20,056 | 12,194
Unrealized Losses, In Loss Position Greater than12 months | (3,827) | (3,219)
Fair market value, Total | 35,622 | 53,051
Unrealized Losses, Total | (4,572) | (9,083)
Municipal bonds |  |
Gain (Loss) on Investments [Line Items] |  |
Fair market value, In Loss Position Less than12 months | 228 | 395
Unrealized Losses, In Loss Position Less than12 months | (4) | (63)
Fair market value, In Loss Position Greater than12 months | 0 | 0
Unrealized Losses, In Loss Position Greater than12 months | 0 | 0
Fair market value, Total | 228 | 395
Unrealized Losses, Total | (4) | (63)
Foreign debt |  |
Gain (Loss) on Investments [Line Items] |  |
Fair market value, In Loss Position Less than12 months | 2,523 | 3,680
Unrealized Losses, In Loss Position Less than12 months | (180) | (384)
Fair market value, In Loss Position Greater than12 months | 2,868 | 406
Unrealized Losses, In Loss Position Greater than12 months | (475) | (312)
Fair market value, Total | 5,391 | 4,086
Unrealized Losses, Total | (655) | (696)
Corporate debt |  |
Gain (Loss) on Investments [Line Items] |  |
Fair market value, In Loss Position Less than12 months | 6,939 | 14,468
Unrealized Losses, In Loss Position Less than12 months | (233) | (2,992)
Fair market value, In Loss Position Greater than12 months | 2,168 | 3,056
Unrealized Losses, In Loss Position Greater than12 months | (890) | (1,287)
Fair market value, Total | 9,107 | 17,524
Unrealized Losses, Total | (1,123) | (4,279)
Preferred stock |  |
Gain (Loss) on Investments [Line Items] |  |
Fair market value, In Loss Position Less than12 months | 3,217 | 10,285
Unrealized Losses, In Loss Position Less than12 months | (121) | (436)
Fair market value, In Loss Position Greater than12 months | 11,635 | 5,168
Unrealized Losses, In Loss Position Greater than12 months | (826) | (448)
Fair market value, Total | 14,852 | 15,453
Unrealized Losses, Total | (947) | (884)
Mortgage-backed securities |  |
Gain (Loss) on Investments [Line Items] |  |
Fair market value, In Loss Position Less than12 months | 51 |
Unrealized Losses, In Loss Position Less than12 months | (5) |
Fair market value, In Loss Position Greater than12 months | 0 |
Unrealized Losses, In Loss Position Greater than12 months | 0 |
Fair market value, Total | 51 |
Unrealized Losses, Total | (5) |
Common stock |  |
Gain (Loss) on Investments [Line Items] |  |
Fair market value, In Loss Position Less than12 months | 2,608 | 12,029
Unrealized Losses, In Loss Position Less than12 months | (202) | (1,989)
Fair market value, In Loss Position Greater than12 months | 3,385 | 3,564
Unrealized Losses, In Loss Position Greater than12 months | (1,636) | (1,172)
Fair market value, Total | 5,993 | 15,593
Unrealized Losses, Total | $ (1,838) | $ (3,161)

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