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Preneed Trust Investments (Unrealized losses on cemetery merchandise and service trust investments) (Details) - Preneed Cemetery Trust Investments [Member] - USD ($) $ in Thousands | Sep. 30, 2019 | Dec. 31, 2018
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Gain (Loss) on Securities [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | $ 20,363 | $ 31,502
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | (3,450) | (5,469)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 11,638 | 6,346
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | (2,328) | (2,664)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 32,001 | 37,848
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | (5,778) | (8,133)
Available-for-sale Securities, Amortized Cost Basis | 72,342 | 70,584
Unrealized Gains | 3,142 | 1,523
Foreign Debt [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 1,824 | 2,140
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | (130) | (245)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 1,057 | 895
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | (341) | (266)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 2,881 | 3,035
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | (471) | (511)
Corporate Debt [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 3,465 | 9,918
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | (434) | (813)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 4,777 | 443
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | (226) | (213)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 8,242 | 10,361
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | (660) | (1,026)
Preferred Stock [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 2,282 | 5,253
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | (26) | (399)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 2,477 | 3,767
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | (111) | (747)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 4,759 | 9,020
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | (137) | (1,146)
Mortgage Backed Securities [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 0 | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 0 | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 357 | 51
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | (210) | (14)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 357 | 51
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | (210) | (14)
Available-for-sale Securities, Amortized Cost Basis |  | 666
Unrealized Gains |  | 161
Common Stock [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 12,130 | 14,191
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | (2,791) | (4,012)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 2,970 | 1,190
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | (1,440) | (1,424)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 15,100 | 15,381
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | (4,231) | (5,436)
Mutual Fund [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 662 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | (69) |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 0 |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 0 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 662 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss | (69) |
Fair Value, Inputs, Level 1 [Member] | Common stock |  |
Gain (Loss) on Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 25,679 | 24,867
Unrealized Gains | 1,169 | 903
Fair Value, Inputs, Level 2 [Member] | Corporate Debt [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 17,404 | 13,987
Unrealized Gains | 812 | $ 362
Fair Value, Inputs, Level 2 [Member] | Mortgage Backed Securities [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 567 |
Unrealized Gains | $ 0 |

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