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Cemetery Perpetual Care Trust Investments (Purchases and sales of investments in perpetual care trusts) (Details) - Perpetual Care Trust Invesments - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Schedule of Trading Securities and Other Trading Assets [Line Items]      
Purchases $ (16,694) $ (38,413) $ (27,719)
Sales $ 14,710 $ 35,402 $ 28,261