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Preneed Cemetery Activities Preneed Cemetery Activities, Textuals (Details) (Cemetery [Member], USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Cemetery [Member]
     
Fair Value, Measurement with unobservable inputs, risk discount, high end of the range 60.00%    
Fair Value, Measurement with unobservable inputs, liquidity discount, high end of the range 25.00%    
Available-for-sale securities, estimated maturity date, minimum 2013    
Underlying assets liquidation range, minimum $ 2    
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments 12,100,000    
Investment Earnings, Net 27,700,000 20,700,000 15,100,000
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net 824,000 28,705,000 5,749,000
Underlying assets liquidation range, maximum $ 10    
Available-for-sale securities, estimated maturity date, maximum 2042