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Preneed Activities Schedule of Unrealized Loss on Investments (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019
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Schedule of unrealized loss on investments [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value |  | $ 3,053
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |  | (36)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value |  | 20,656
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses |  | (1,121)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value |  | 23,709
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |  | (1,157)
US Treasury Securities [Member] |  |
Schedule of unrealized loss on investments [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | $ 2,361 | 3,023
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | (3) | (36)
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 749 | 1,947
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | (246) | (94)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 3,110 | 4,970
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (249) | (130)
Debt Security, Government, Non-US [Member] |  |
Schedule of unrealized loss on investments [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | 0 | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | 0 | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 11,675 | 13,804
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | (838) | (850)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 11,675 | 13,804
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (838) | (850)
Corporate Debt Securities [Member] |  |
Schedule of unrealized loss on investments [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | 45 | 30
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | 0 | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 803 | 4,826
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | (6) | (172)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 848 | 4,856
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (6) | (172)
Residential Mortgage Backed Securities [Member] |  |
Schedule of unrealized loss on investments [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value |  | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |  | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value |  | 51
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses |  | (1)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value |  | 51
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |  | (1)
Asset-backed Securities [Member] |  |
Schedule of unrealized loss on investments [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | 0 | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | 0 | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 36 | 28
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | (5) | (4)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 36 | 28
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (5) | $ (4)
Estimate of Fair Value Measurement [Member] |  |
Schedule of unrealized loss on investments [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value | 2,406 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | (3) |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 13,263 |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | (1,095) |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 15,669 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | $ (1,098) |

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