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Trust Investments (Unrealized losses on cemetery merchandise and service trust investments) (Details) - Preneed Cemetery Trust Investments [Member] - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
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Gain (Loss) on Securities [Line Items] |  |
In Loss Position Less than 12 months, Fair Market Value | $ 13,596 | $ 6,566
In Loss Position Less than 12 months, Unrealized Losses | (995) | (629)
In Loss Position Greater than 12 months, Fair Market Value | 3,904 | 3,542
In Loss Position Greater than 12 months, Unrealized Losses | (502) | (717)
Total, Fair Market Value | 17,500 | 10,108
Total, Unrealized Losses | (1,497) | (1,346)
US Government Agencies Debt Securities |  |
Gain (Loss) on Securities [Line Items] |  |
In Loss Position Less than 12 months, Fair Market Value | 779 |
In Loss Position Less than 12 months, Unrealized Losses | (24) |
In Loss Position Greater than 12 months, Fair Market Value | 0 |
In Loss Position Greater than 12 months, Unrealized Losses | 0 |
Total, Fair Market Value | 779 |
Total, Unrealized Losses | (24) |
Foreign debt |  |
Gain (Loss) on Securities [Line Items] |  |
In Loss Position Less than 12 months, Fair Market Value | 1,036 | 4,228
In Loss Position Less than 12 months, Unrealized Losses | (12) | (517)
In Loss Position Greater than 12 months, Fair Market Value | 783 | 629
In Loss Position Greater than 12 months, Unrealized Losses | (288) | (436)
Total, Fair Market Value | 1,819 | 4,857
Total, Unrealized Losses | (300) | (953)
Corporate Debt [Member] |  |
Gain (Loss) on Securities [Line Items] |  |
In Loss Position Less than 12 months, Fair Market Value | 7,257 | 1,037
In Loss Position Less than 12 months, Unrealized Losses | (843) | (49)
In Loss Position Greater than 12 months, Fair Market Value | 0 | 0
In Loss Position Greater than 12 months, Unrealized Losses | 0 | 0
Total, Fair Market Value | 7,257 | 1,037
Total, Unrealized Losses | (843) | (49)
Preferred stock |  |
Gain (Loss) on Securities [Line Items] |  |
In Loss Position Less than 12 months, Fair Market Value | 4,448 | 1,301
In Loss Position Less than 12 months, Unrealized Losses | (113) | (63)
In Loss Position Greater than 12 months, Fair Market Value | 3,121 | 2,913
In Loss Position Greater than 12 months, Unrealized Losses | (214) | (281)
Total, Fair Market Value | 7,569 | 4,214
Total, Unrealized Losses | (327) | $ (344)
Mortgage-backed securities |  |
Gain (Loss) on Securities [Line Items] |  |
In Loss Position Less than 12 months, Fair Market Value | 76 |
In Loss Position Less than 12 months, Unrealized Losses | (3) |
In Loss Position Greater than 12 months, Fair Market Value | 0 |
In Loss Position Greater than 12 months, Unrealized Losses | 0 |
Total, Fair Market Value | 76 |
Total, Unrealized Losses | $ (3) |

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