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Cemetery Perpetual Care Trust Investments (Purchases and sales of investments in perpetual care trusts) (Details) - Perpetual Care Trust Invesments [Member] - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Schedule of Trading Securities and Other Trading Assets [Line Items]        
Purchases $ (936) $ (7,247) $ (12,888) $ (15,352)
Sales $ 3,832 $ 2,532 $ 11,702 $ 8,885