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Basis of Presentation and Summary of Significant Accounting Policies Performance Obligation (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Revenue from External Customer [Line Items]      
Tax adjustment related to discrete items $ (117) $ (14)  
Term of sales contract for cemetery interment rights, maximum (in Duration) 5 years    
Funeral | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01      
Revenue from External Customer [Line Items]      
Revenue, Remaining Performance Obligation, Amount     $ 8,200
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period     10 years
Funeral | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-07-01      
Revenue from External Customer [Line Items]      
Revenue, Remaining Performance Obligation, Amount $ 8,100    
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period 10 years    
Cemetery | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01      
Revenue from External Customer [Line Items]      
Revenue, Remaining Performance Obligation, Amount     $ 7,900
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period     8 years
Cemetery | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-07-01      
Revenue from External Customer [Line Items]      
Revenue, Remaining Performance Obligation, Amount $ 8,500    
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period 8 years