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Cemetery Perpetual Care Trust Investments (Perpetual care trust investment security transactions recorded in Cemetery revenue) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Cemetery Perpetual Care Trust Investments [Abstract]      
Investment income $ 6,451 $ 5,315 $ 4,713
Realized gains (losses), net (434) 436 1,112
Increase in Care trusts’ corpus $ 6,017 $ 5,751 $ 5,825