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Recently Issued Accounting Standards 606 Cash Flow (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2018
Jun. 30, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Amortization of capitalized commissions on preneed contracts $ 144 $ 293 $ 0
Accounting Standards Update 2014-09 [Member]      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Amortization of capitalized commissions on preneed contracts 144 293  
Intangible and other non-current assets (162) (331)  
Balances Without Adoption of Topic 606 | Accounting Standards Update 2014-09 [Member]      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Amortization of capitalized commissions on preneed contracts 0 0  
Intangible and other non-current assets 0 0  
Effect of Change | Accounting Standards Update 2014-09 [Member]      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Amortization of capitalized commissions on preneed contracts 144 293  
Intangible and other non-current assets $ (162) $ (331)