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Cemetery Perpetual Care Trusts Long-term Receivable and Investment (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Long-term receivable and investment components [Line Items]    
Cemetery perpetual care trust investments $ 1,407,465 $ 1,319,427
Cemetery Perpetual Care [Member]    
Long-term receivable and investment components [Line Items]    
Trust investments, at market 1,349,073 1,232,592
Cash and cash equivalents 58,392 86,835
Cemetery perpetual care trust investments $ 1,407,465 $ 1,319,427