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Cemetery Perpetual Care Trust Investments (Perpetual care trust investment security transactions recorded in Cemetery revenue) (Details) - Perpetual Care Trust Invesments [Member] - Cemetery Revenue [Member] - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Debt and Equity Securities, FV-NI [Line Items]        
Investment income $ 1,220 $ 1,158 $ 3,414 $ 3,749
Realized loss, net (232) (241) (512) (955)
Total $ 988 $ 917 $ 2,902 $ 2,794