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Trust Investments (Purchases and sales of investments in preneed cemetery trusts) (Details) - Preneed Cemetery Trust Investments - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2024 | Mar. 31, 2023
Debt and Equity Securities, FV-NI [Line Items] |  |
Purchases | $ (4,326) | $ (3,506)
Sales | $ 16,560 | $ 18,069

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