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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, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Preneed Funeral Trust Investments [Member]
   
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Purchases $ (3,186) $ (17,873)
Sales $ 3,915 $ 18,174