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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 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Debt and Equity Securities, FV-NI [Line Items]        
Investment income $ 1,107 $ 1,463 $ 2,194 $ 2,996
Realized gains (losses), net 10 (398) (280) (715)
Total $ 1,117 $ 1,065 $ 1,914 $ 2,281