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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, 2017
Mar. 31, 2016
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Investment income $ 1,705 $ 1,476
Realized gain, net (499) (262)
Total $ 1,206 $ 1,214