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Preneed Trust Investments (Cost and fair market values associated with preneed funeral trust investments) (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018
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Preneed Cemetery Trust Investments [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | $ 71,208 | $ 70,584
Unrealized Gains | 3,269 | 1,523
Unrealized Losses | (5,293) | (8,133)
Fair Market Value | 69,184 | 63,974
Preneed cemetery trust investments | $ 69,878 | $ 64,549
Fair market value as a percentage of cost | 97.20% | 90.60%
Preneed Cemetery Trust Investments [Member] | Mortgage Backed Securities [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost |  | $ 666
Unrealized Gains |  | 161
Unrealized Losses |  | (14)
Fair Market Value |  | 813
Preneed Cemetery Trust Investments [Member] | Accrued Investment Income [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | $ 694 | 575
Fair Market Value | 694 | 575
Preneed Funeral Trust Investments [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 91,020 | 90,993
Unrealized Gains | 3,236 | 1,450
Unrealized Losses | (5,205) | (8,177)
Fair Market Value | 89,051 | 84,266
Preneed cemetery trust investments | $ 89,743 | $ 84,803
Fair market value as a percentage of cost | 97.80% | 92.60%
Preneed Funeral Trust Investments [Member] | Accrued Investment Income [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | $ 692 | $ 537
Fair Market Value | 692 | 537
Fair Value, Inputs, Level 1 [Member] | Preneed Cemetery Trust Investments [Member] | Cash and Money Market Accounts [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 7,496 | 16,194
Unrealized Gains | 0 | 0
Unrealized Losses | 0 | 0
Fair Market Value | 7,496 | 16,194
Fair Value, Inputs, Level 1 [Member] | Preneed Cemetery Trust Investments [Member] | Common stock |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 29,834 | 24,867
Unrealized Gains | 2,298 | 903
Unrealized Losses | (3,792) | (5,436)
Fair Market Value | 28,340 | 20,334
Fair Value, Inputs, Level 1 [Member] | Preneed Funeral Trust Investments [Member] | Cash and Money Market Accounts [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 23,147 | 31,375
Unrealized Gains | 0 | 0
Unrealized Losses | 0 | 0
Fair Market Value | 23,147 | 31,375
Fair Value, Inputs, Level 1 [Member] | Preneed Funeral Trust Investments [Member] | U.S. Treasury Debt [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 1,318 | 1,319
Unrealized Gains | 2 | 3
Unrealized Losses | (12) | (19)
Fair Market Value | 1,308 | 1,303
Fair Value, Inputs, Level 1 [Member] | Preneed Funeral Trust Investments [Member] | Common stock |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 28,750 | 24,803
Unrealized Gains | 2,173 | 887
Unrealized Losses | (3,680) | (5,389)
Fair Market Value | 27,243 | 20,301
Fair Value, Inputs, Level 2 [Member] | Preneed Cemetery Trust Investments [Member] | Debt Security, Government, Non-US [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 5,547 | 3,802
Unrealized Gains | 169 | 43
Unrealized Losses | (249) | (511)
Fair Market Value | 5,467 | 3,334
Fair Value, Inputs, Level 2 [Member] | Preneed Cemetery Trust Investments [Member] | Corporate Debt [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 14,199 | 13,987
Unrealized Gains | 444 | 362
Unrealized Losses | (455) | (1,026)
Fair Market Value | 14,188 | 13,323
Fair Value, Inputs, Level 2 [Member] | Preneed Cemetery Trust Investments [Member] | Preferred Stock [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 12,320 | 11,068
Unrealized Gains | 259 | 54
Unrealized Losses | (774) | (1,146)
Fair Market Value | 11,805 | 9,976
Fair Value, Inputs, Level 2 [Member] | Preneed Cemetery Trust Investments [Member] | Mortgage Backed Securities [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 643 |
Unrealized Gains | 90 |
Unrealized Losses | (21) |
Fair Market Value | 712 |
Fair Value, Inputs, Level 2 [Member] | Preneed Cemetery Trust Investments [Member] | Fixed Income [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 1,169 |
Unrealized Gains | 9 |
Unrealized Losses | (2) |
Fair Market Value | 1,176 |
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Debt Security, Government, Non-US [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 5,531 | 3,748
Unrealized Gains | 171 | 44
Unrealized Losses | (241) | (503)
Fair Market Value | 5,461 | 3,289
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Corporate Debt [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 14,589 | 14,195
Unrealized Gains | 515 | 294
Unrealized Losses | (454) | (1,025)
Fair Market Value | 14,650 | 13,464
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Preferred Stock [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 12,675 | 11,500
Unrealized Gains | 273 | 54
Unrealized Losses | (772) | (1,194)
Fair Market Value | 12,176 | 10,360
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Mortgage Backed Securities [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 740 | 772
Unrealized Gains | 93 | 168
Unrealized Losses | (24) | (18)
Fair Market Value | 809 | 922
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Fixed Income [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 1,294 | 275
Unrealized Gains | 9 | 0
Unrealized Losses | (22) | (29)
Fair Market Value | 1,281 | 246
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Other Investments [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Cost | 2,976 | 3,006
Unrealized Gains | 0 | 0
Unrealized Losses | 0 | 0
Fair Market Value | $ 2,976 | $ 3,006

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