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Recently Issued Accounting Standards 606 Cash Flow (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Amortization of capitalized commissions on preneed contracts $ 149 $ 0
Accounting Standards Update 2014-09 [Member]    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Amortization of capitalized commissions on preneed contracts 149  
Intangible and other non-current assets (169)  
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  
Intangible and other non-current assets 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 149  
Intangible and other non-current assets $ (169)