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Trust Investments (Cost and fair market values associated with the trust investments held in perpetual care trust) (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Perpetual Care Trust Investments |  |
Gain (Loss) on Securities [Line Items] |  |
Cost | $ 32,194 |
Preneed funeral trust investments | $ 72,400 | $ 70,828
Market value as a percentage of cost | 106.60% | 106.60%
Perpetual Care Trust Investments | Accrued Investment Income [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Cost | $ 689 | $ 808
Fair Market Value | 689 | 808
Perpetual Care Trust Investments | Trust Securities [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Cost | 67,290 | 65,665
Unrealized Gains | 8,794 | 11,128
Unrealized Losses | (4,373) | (6,773)
Fair Market Value | 71,711 | 70,020
Preneed Cemetery Trust Investments |  |
Gain (Loss) on Securities [Line Items] |  |
Cost | 96,817 |
Unrealized Gains | 12,039 |
Unrealized Losses | (5,992) |
Fair Market Value | 102,864 |
Preneed cemetery trust investments | $ 103,808 | $ 89,081
Market value as a percentage of cost | 106.20% | 106.70%
Preneed Cemetery Trust Investments | Foreign Debt |  |
Gain (Loss) on Securities [Line Items] |  |
Cost |  | $ 15,953
Unrealized Gains |  | 2,083
Unrealized Losses |  | (702)
Fair Market Value |  | 17,334
Preneed Cemetery Trust Investments | Corporate debt |  |
Gain (Loss) on Securities [Line Items] |  |
Cost |  | 14,856
Unrealized Gains |  | 1,820
Unrealized Losses |  | (358)
Fair Market Value |  | 16,318
Preneed Cemetery Trust Investments | Preferred Stock [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Cost |  | 11,886
Unrealized Gains |  | 980
Unrealized Losses |  | (336)
Fair Market Value |  | 12,530
Preneed Cemetery Trust Investments | Mortgage-backed securities |  |
Gain (Loss) on Securities [Line Items] |  |
Cost |  | 272
Unrealized Gains |  | 0
Unrealized Losses |  | (159)
Fair Market Value |  | 113
Preneed Cemetery Trust Investments | Accrued Investment Income [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Cost | $ 944 | 993
Fair Market Value | 944 | 993
Preneed Cemetery Trust Investments | Trust Securities [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Cost |  | 82,573
Unrealized Gains |  | 13,856
Unrealized Losses |  | (8,341)
Fair Market Value |  | 88,088
Fair Value, Level 1 | Perpetual Care Trust Investments | Cash and Cash Equivalents |  |
Gain (Loss) on Securities [Line Items] |  |
Cost | 1,447 | 686
Unrealized Gains | 0 | 0
Unrealized Losses | 0 | 0
Fair Market Value | 1,447 | 686
Fair Value, Level 1 | Perpetual Care Trust Investments | Common Stock [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Cost | 27,853 | 23,662
Unrealized Gains | 4,990 | 6,108
Unrealized Losses | (3,008) | (5,255)
Fair Market Value | 29,835 | 24,515
Fair Value, Level 1 | Preneed Cemetery Trust Investments | Cash and Cash Equivalents |  |
Gain (Loss) on Securities [Line Items] |  |
Cost | 3,088 | 1,859
Unrealized Gains | 0 | 0
Unrealized Losses | 0 | 0
Fair Market Value | 3,088 | 1,859
Fair Value, Level 1 | Preneed Cemetery Trust Investments | Common Stock [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Cost | 40,992 | 30,253
Unrealized Gains | 6,906 | 7,642
Unrealized Losses | (4,079) | (6,601)
Fair Market Value | 43,819 | 31,294
Fair Value, Level 2 | Perpetual Care Trust Investments | Foreign Debt |  |
Gain (Loss) on Securities [Line Items] |  |
Cost | 10,949 | 12,539
Unrealized Gains | 1,401 | 1,641
Unrealized Losses | (647) | (582)
Fair Market Value | 11,703 | 13,598
Fair Value, Level 2 | Perpetual Care Trust Investments | Corporate debt |  |
Gain (Loss) on Securities [Line Items] |  |
Cost | 9,139 | 11,684
Unrealized Gains | 1,065 | 1,506
Unrealized Losses | (32) | (240)
Fair Market Value | 10,172 | 12,950
Fair Value, Level 2 | Perpetual Care Trust Investments | Preferred Stock [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Cost | 9,742 | 10,444
Unrealized Gains | 803 | 819
Unrealized Losses | (226) | (355)
Fair Market Value | 10,319 | 10,908
Fair Value, Level 2 | Perpetual Care Trust Investments | Mortgage-backed securities |  |
Gain (Loss) on Securities [Line Items] |  |
Cost |  | 206
Unrealized Gains |  | 0
Unrealized Losses |  | (121)
Fair Market Value |  | 85
Fair Value, Level 2 | Perpetual Care Trust Investments | Fixed income |  |
Gain (Loss) on Securities [Line Items] |  |
Cost | 8,141 | 6,444
Unrealized Gains | 530 | 1,054
Unrealized Losses | (460) | (220)
Fair Market Value | 8,211 | 7,278
Fair Value, Level 2 | Perpetual Care Trust Investments | Equity Securities [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Cost | 19 |
Unrealized Gains | 5 |
Unrealized Losses | 0 |
Fair Market Value | 24 |
Fair Value, Level 2 | Preneed Cemetery Trust Investments | Foreign Debt |  |
Gain (Loss) on Securities [Line Items] |  |
Cost | 15,846 |
Unrealized Gains | 2,025 |
Unrealized Losses | (953) |
Fair Market Value | 16,918 |
Fair Value, Level 2 | Preneed Cemetery Trust Investments | Corporate debt |  |
Gain (Loss) on Securities [Line Items] |  |
Cost | 12,965 |
Unrealized Gains | 1,374 |
Unrealized Losses | (49) |
Fair Market Value | 14,290 |
Fair Value, Level 2 | Preneed Cemetery Trust Investments | Preferred Stock [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Cost | 12,455 |
Unrealized Gains | 1,111 |
Unrealized Losses | (344) |
Fair Market Value | 13,222 |
Fair Value, Level 2 | Preneed Cemetery Trust Investments | Fixed income |  |
Gain (Loss) on Securities [Line Items] |  |
Cost | 11,443 | 7,494
Unrealized Gains | 615 | 1,331
Unrealized Losses | (567) | (185)
Fair Market Value | 11,491 | $ 8,640
Fair Value, Level 2 | Preneed Cemetery Trust Investments | Equity Securities [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Cost | 28 |
Unrealized Gains | 8 |
Unrealized Losses | 0 |
Fair Market Value | $ 36 |

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