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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 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Debt and Equity Securities, FV-NI [Line Items]        
Purchases $ (459) $ (7,532) $ (2,083) $ (34,740)
Sales $ 0 $ 6,446 $ 661 $ 33,847