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Trust Investments (Narrative) (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Preneed Cemetery Trust Investments    
Debt Securities, Available-for-sale [Line Items]    
Unrealized Losses $ (5,992)  
Debt Securities, Available-for-sale, Amortized Cost 96,817  
Preneed Funeral Trust Investments    
Debt Securities, Available-for-sale [Line Items]    
Unrealized Losses (5,296) $ (7,570)
Debt Securities, Available-for-sale, Amortized Cost $ 110,476 $ 97,700