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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, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Preneed Cemetery Trust Investments [Member]
   
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Purchases $ (4,161) $ (24,039)
Sales $ 5,009 $ 24,088