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Preneed Trust Investments (Components of preneed funeral trust investments) (Details) - Preneed Funeral Trust Investments - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Preneed cemetery trust investments, at market value $ 91,980 $ 88,444
Less: allowance for contract cancellation (2,740) (2,891)
Available-for-sale securities, current $ 89,240 $ 85,553