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Trust Investments (Components of Care trusts’ corpus) (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Gain (Loss) on Securities [Line Items]    
Care trusts’ corpus $ 69,707 $ 63,416
Perpetual Care Trust Investments    
Gain (Loss) on Securities [Line Items]    
Available-for-sale securities, current 70,828 64,047
Obligations due from (to) trust (1,121) (631)
Care trusts’ corpus $ 69,707 $ 63,416