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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 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Schedule of Trading Securities and Other Trading Assets [Line Items]        
Purchases $ (5,194) $ (3,471) $ (11,952) $ (8,105)
Sales $ 3,122 $ 4,531 $ 7,870 $ 6,353