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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 | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Perpetual Care Trust Invesments [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | $ 67,079 | $ 65,665
Unrealized Gains | 7,737 | 11,128
Unrealized Losses | (3,990) | (6,773)
Fair Market Value | 70,826 | 70,020
Preneed cemetery trust investments | $ 71,640 | $ 70,828
Preneed cemetery trust investments, fair market value as a percentage of cost (in Percent) | 105.60% | 106.60%
Perpetual Care Trust Invesments [Member] | Accrued Investment Income [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | $ 814 | $ 808
Fair Market Value | 814 | 808
Preneed Funeral Trust Investments [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 106,087 | 97,700
Unrealized Gains | 9,266 | 13,125
Unrealized Losses | (4,788) | (7,570)
Fair Market Value | 110,565 | 103,255
Preneed cemetery trust investments | $ 111,587 | $ 104,166
Preneed cemetery trust investments, fair market value as a percentage of cost (in Percent) | 104.20% | 105.70%
Preneed Funeral Trust Investments [Member] | Accrued Investment Income [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | $ 1,022 | $ 911
Fair Market Value | 1,022 | 911
Fair Value, Inputs, Level 1 [Member] | Perpetual Care Trust Invesments [Member] | Cash and Money Market Accounts [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 662 | 686
Unrealized Gains | 0 | 0
Unrealized Losses | 0 | 0
Fair Market Value | 662 | 686
Fair Value, Inputs, Level 1 [Member] | Perpetual Care Trust Invesments [Member] | Common stock |  |
Gain (Loss) on Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 27,383 | 23,662
Unrealized Gains | 3,383 | 6,108
Unrealized Losses | (2,831) | (5,255)
Fair Market Value | 27,935 | 24,515
Fair Value, Inputs, Level 1 [Member] | Preneed Funeral Trust Investments [Member] | Cash and Money Market Accounts [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 19,132 | 18,478
Unrealized Gains | 0 | 0
Unrealized Losses | 0 | 0
Fair Market Value | 19,132 | 18,478
Fair Value, Inputs, Level 1 [Member] | Preneed Funeral Trust Investments [Member] | Common stock |  |
Gain (Loss) on Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 35,602 | 28,327
Unrealized Gains | 4,055 | 7,364
Unrealized Losses | (3,357) | (6,052)
Fair Market Value | 36,300 | 29,639
Fair Value, Inputs, Level 2 [Member] | Perpetual Care Trust Invesments [Member] | Debt Security, Government, Non-US [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 12,228 | 12,539
Unrealized Gains | 1,679 | 1,641
Unrealized Losses | (556) | (582)
Fair Market Value | 13,351 | 13,598
Fair Value, Inputs, Level 2 [Member] | Perpetual Care Trust Invesments [Member] | Corporate debt |  |
Gain (Loss) on Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 8,723 | 11,684
Unrealized Gains | 1,167 | 1,506
Unrealized Losses | (12) | (240)
Fair Market Value | 9,878 | 12,950
Fair Value, Inputs, Level 2 [Member] | Perpetual Care Trust Invesments [Member] | Preferred Stock [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 9,841 | 10,444
Unrealized Gains | 909 | 819
Unrealized Losses | (284) | (355)
Fair Market Value | 10,466 | 10,908
Fair Value, Inputs, Level 2 [Member] | Perpetual Care Trust Invesments [Member] | Mortgage-backed securities |  |
Gain (Loss) on Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis |  | 206
Unrealized Gains |  | 0
Unrealized Losses |  | (121)
Fair Market Value |  | 85
Fair Value, Inputs, Level 2 [Member] | Perpetual Care Trust Invesments [Member] | Other Investments [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 8,223 | 6,444
Unrealized Gains | 596 | 1,054
Unrealized Losses | (307) | (220)
Fair Market Value | 8,512 | 7,278
Fair Value, Inputs, Level 2 [Member] | Perpetual Care Trust Invesments [Member] | Equity Securities [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 19 |
Unrealized Gains | 3 |
Unrealized Losses | 0 |
Fair Market Value | 22 |
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Debt Security, Government, Non-US [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 10,518 | 15,144
Unrealized Gains | 1,325 | 2,018
Unrealized Losses | (17) | (634)
Fair Market Value | 11,826 | 16,528
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Corporate debt |  |
Gain (Loss) on Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 11,011 | 13,292
Unrealized Gains | 1,119 | 1,638
Unrealized Losses | (396) | (310)
Fair Market Value | 11,734 | 14,620
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Preferred Stock [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 0 | 10,944
Unrealized Gains | 0 | 900
Unrealized Losses | 0 | (298)
Fair Market Value | 0 | 11,546
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Mortgage-backed securities |  |
Gain (Loss) on Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis |  | 293
Unrealized Gains |  | 1
Unrealized Losses |  | (155)
Fair Market Value |  | 139
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Fixed Income Securities [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 9,398 | 6,475
Unrealized Gains | 539 | 1,198
Unrealized Losses | (269) | (121)
Fair Market Value | 9,668 | 7,552
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Other Investments [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 3,846 | 3,928
Unrealized Gains | 0 | 0
Unrealized Losses | 0 | 0
Fair Market Value | 3,846 | $ 3,928
Fair Value, Inputs, Level 2 [Member] | Preneed Funeral Trust Investments [Member] | Equity Securities [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | 26 |
Unrealized Gains | 4 |
Unrealized Losses | 0 |
Fair Market Value | $ 30 |

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