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Cemetery Perpetual Care Trusts Cemetry Perpetual Care Trusts, Textuals (Details) (Cemetery Perpetual Care [Member], USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Cemetery Perpetual Care [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    
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments $ 5,100,000    
Investment Earnings, Net 44,700,000 43,000,000 38,600,000
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net 760,000 741,000 7,771,000
Underlying assets liquidation range, minimum 2    
Underlying assets liquidation range, maximum $ 10    
Available-for-sale securities, estimated maturity date, maximum 2041