Preneed Trust Investments (Purchases and sales of investments in preneed funeral trusts) (Details) - Preneed Funeral Trust Investments [Member] - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Purchases $ (11,407) $ (5,489)
Sales $ 7,458 $ 2,302