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Preneed Trust Investments (Purchases and sales of investments in preneed cemetery trusts) (Details) - Preneed Cemetery Trust Investments [Member] - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Schedule of Trading Securities and Other Trading Assets [Line Items]        
Purchases $ (7,215) $ (5,848) $ (18,106) $ (12,855)
Sales $ 4,676 $ 7,441 $ 12,030 $ 10,193