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Preneed Trust Investments (Purchases and sales of investments in preneed funeral trusts) (Details) - Preneed Funeral 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 $ (7,024) $ (5,856) $ (18,431) $ (11,345)
Sales $ 5,211 $ 20,435 $ 12,669 $ 22,738