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Preneed Trust Investments (Components of preneed cemetery trust investments) (Details) - USD ($)
9 Months Ended
Sep. 30, 2017
Dec. 31, 2016
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Preneed cemetery trust investments, net $ 71,728,000 $ 69,696,000
Fair value measurements, transfers between Level 1 and Level 2 0  
Preneed Cemetery Trust Investments [Member]    
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Preneed cemetery trust investments, at market value 73,889,000 71,834,000
Less: allowance for contract cancellation (2,161,000) (2,138,000)
Preneed cemetery trust investments, net $ 71,728,000 $ 69,696,000