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Preneed Trust Investments Preneed Trust Investments (Unrealized losses on preneed funeral trust investments) (Details) - Preneed Funeral Trust Investments - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
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Gain (Loss) on Securities [Line Items] |  |
Fair market value, In Loss Position Less than12 months | $ 32,475 | $ 14,075
Unrealized Losses, In Loss Position Less than12 months | (5,560) | (1,620)
Fair market value, In Loss Position Greater than12 months | 7,659 | 13,013
Unrealized Losses, In Loss Position Greater than12 months | (2,617) | (1,990)
Fair market value, Total | 40,134 | 27,088
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | (8,177) | (3,610)
U.S. treasury debt |  |
Gain (Loss) on Securities [Line Items] |  |
Fair market value, In Loss Position Less than12 months | 0 | 1,325
Unrealized Losses, In Loss Position Less than12 months | 0 | (15)
Fair market value, In Loss Position Greater than12 months | 1,181 | 0
Unrealized Losses, In Loss Position Greater than12 months | (19) | 0
Fair market value, Total | 1,181 | 1,325
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | (19) | (15)
Foreign debt |  |
Gain (Loss) on Securities [Line Items] |  |
Fair market value, In Loss Position Less than12 months | 2,180 | 159
Unrealized Losses, In Loss Position Less than12 months | (251) | (6)
Fair market value, In Loss Position Greater than12 months | 850 | 1,608
Unrealized Losses, In Loss Position Greater than12 months | (252) | (183)
Fair market value, Total | 3,030 | 1,767
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | (503) | (189)
Corporate debt |  |
Gain (Loss) on Securities [Line Items] |  |
Fair market value, In Loss Position Less than12 months | 9,990 | 3,770
Unrealized Losses, In Loss Position Less than12 months | (814) | (74)
Fair market value, In Loss Position Greater than12 months | 434 | 842
Unrealized Losses, In Loss Position Greater than12 months | (211) | (203)
Fair market value, Total | 10,424 | 4,612
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | (1,025) | (277)
Preferred stock |  |
Gain (Loss) on Securities [Line Items] |  |
Fair market value, In Loss Position Less than12 months | 5,967 | 50
Unrealized Losses, In Loss Position Less than12 months | (460) | 0
Fair market value, In Loss Position Greater than12 months | 3,673 | 8,184
Unrealized Losses, In Loss Position Greater than12 months | (734) | (585)
Fair market value, Total | 9,640 | 8,234
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | (1,194) | (585)
Mortgage-backed securities |  |
Gain (Loss) on Securities [Line Items] |  |
Fair market value, In Loss Position Less than12 months | 11 | 221
Unrealized Losses, In Loss Position Less than12 months | 0 | (17)
Fair market value, In Loss Position Greater than12 months | 120 | 36
Unrealized Losses, In Loss Position Greater than12 months | (18) | (10)
Fair market value, Total | 131 | 257
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | (18) | (27)
Common stock |  |
Gain (Loss) on Securities [Line Items] |  |
Fair market value, In Loss Position Less than12 months | 14,327 | 8,001
Unrealized Losses, In Loss Position Less than12 months | (4,035) | (1,496)
Fair market value, In Loss Position Greater than12 months | 1,155 | 1,728
Unrealized Losses, In Loss Position Greater than12 months | (1,354) | (972)
Fair market value, Total | 15,482 | 9,729
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | (5,389) | (2,468)
Fixed income |  |
Gain (Loss) on Securities [Line Items] |  |
Fair market value, In Loss Position Less than12 months | 0 | 549
Unrealized Losses, In Loss Position Less than12 months | 0 | (12)
Fair market value, In Loss Position Greater than12 months | 246 | 615
Unrealized Losses, In Loss Position Greater than12 months | (29) | (37)
Fair market value, Total | 246 | 1,164
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | $ (29) | $ (49)

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