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Preneed Trust Investments (Preneed funeral trust investment security transactions) (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]    
Investment income $ 606 $ 861
Realized gains 5,127 735
Realized losses (5,332) (449)
Expenses and taxes (248) (210)
Decrease in deferred preneed funeral receipts held in trust $ (153) $ (937)