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Basis of Presentation and Summary of Significant Accounting Policies Performance Obligation (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2022
Dec. 31, 2021
Revenue from External Customer [Line Items]    
Term of sales contract for cemetery interment rights, maximum 5 years  
Funeral | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-10-01    
Revenue from External Customer [Line Items]    
Balances due on undelivered cemetery preneed contracts $ 8.8 $ 8.0
Average maturity period for preneed funeral contracts 10 years 10 years
Cemetery | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-10-01    
Revenue from External Customer [Line Items]    
Balances due on undelivered cemetery preneed contracts $ 10.5 $ 10.4
Average maturity period for preneed funeral contracts 8 years 8 years