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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, 2019 | Dec. 31, 2018
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Gain (Loss) on Securities [Line Items] |  |
Fair market value, In Loss Position Less than12 months | $ 11,489 | $ 32,475
Unrealized Losses, In Loss Position Less than12 months | (1,094) | (5,560)
Fair market value, In Loss Position Greater than12 months | 10,732 | 7,659
Unrealized Losses, In Loss Position Greater than12 months | (3,079) | (2,617)
Fair market value, Total | 22,221 | 40,134
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | (4,173) | (8,177)
U.S. treasury debt |  |
Gain (Loss) on Securities [Line Items] |  |
Fair market value, In Loss Position Less than12 months |  | 0
Unrealized Losses, In Loss Position Less than12 months |  | 0
Fair market value, In Loss Position Greater than12 months |  | 1,181
Unrealized Losses, In Loss Position Greater than12 months |  | (19)
Fair market value, Total |  | 1,181
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss |  | (19)
Corporate debt |  |
Gain (Loss) on Securities [Line Items] |  |
Fair market value, In Loss Position Less than12 months | 274 | 2,180
Unrealized Losses, In Loss Position Less than12 months | (43) | (251)
Fair market value, In Loss Position Greater than12 months | 723 | 850
Unrealized Losses, In Loss Position Greater than12 months | (189) | (252)
Fair market value, Total | 997 | 3,030
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | (232) | (503)
Preferred stock |  |
Gain (Loss) on Securities [Line Items] |  |
Fair market value, In Loss Position Less than12 months | 1,403 | 9,990
Unrealized Losses, In Loss Position Less than12 months | (172) | (814)
Fair market value, In Loss Position Greater than12 months | 4,433 | 434
Unrealized Losses, In Loss Position Greater than12 months | (474) | (211)
Fair market value, Total | 5,836 | 10,424
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | (646) | (1,025)
Mortgage-backed securities |  |
Gain (Loss) on Securities [Line Items] |  |
Fair market value, In Loss Position Less than12 months | 4,412 | 5,967
Unrealized Losses, In Loss Position Less than12 months | (198) | (460)
Fair market value, In Loss Position Greater than12 months | 0 | 3,673
Unrealized Losses, In Loss Position Greater than12 months | 0 | (734)
Fair market value, Total | 4,412 | 9,640
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | (198) | (1,194)
Mortgage-backed securities |  |
Gain (Loss) on Securities [Line Items] |  |
Fair market value, In Loss Position Less than12 months | 0 | 11
Unrealized Losses, In Loss Position Less than12 months | 0 | 0
Fair market value, In Loss Position Greater than12 months | 439 | 120
Unrealized Losses, In Loss Position Greater than12 months | (117) | (18)
Fair market value, Total | 439 | 131
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | (117) | (18)
Fixed Income |  |
Gain (Loss) on Securities [Line Items] |  |
Fair market value, In Loss Position Less than12 months | 4,732 | 14,327
Unrealized Losses, In Loss Position Less than12 months | (625) | (4,035)
Fair market value, In Loss Position Greater than12 months | 4,068 | 1,155
Unrealized Losses, In Loss Position Greater than12 months | (2,244) | (1,354)
Fair market value, Total | 8,800 | 15,482
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | (2,869) | (5,389)
Equity and Other Securities [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Fair market value, In Loss Position Less than12 months | 0 |
Unrealized Losses, In Loss Position Less than12 months | 0 |
Fair market value, In Loss Position Greater than12 months | 48 |
Unrealized Losses, In Loss Position Greater than12 months | (4) |
Fair market value, Total | 48 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | (4) |
Fixed income |  |
Gain (Loss) on Securities [Line Items] |  |
Fair market value, In Loss Position Less than12 months | 668 | 0
Unrealized Losses, In Loss Position Less than12 months | (56) | 0
Fair market value, In Loss Position Greater than12 months | 1,021 | 246
Unrealized Losses, In Loss Position Greater than12 months | (51) | (29)
Fair market value, Total | 1,689 | 246
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | $ (107) | $ (29)

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