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Cemetery Perpetual Care Trust Investments (Perpetual care trust investment security transactions recorded in interest income and other, net) (Details) - Perpetual Care Trust Invesments [Member] - Interest Income and Other, Net [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]        
Realized gains $ 65 $ 785 $ 112 $ 975
Realized losses (433) (60) (1,682) (485)
Decrease (increase) in care trusts’ corpus $ 368 $ (725) $ 1,570 $ (490)