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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
Mar. 31, 2019
Mar. 31, 2018
Debt and Equity Securities, FV-NI [Line Items]    
Investment income $ 1,087 $ 1,533
Realized gain, net (290) (316)
Total $ 797 $ 1,217