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Commitments and Contingencies (Narrative) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Loss Contingencies [Line Items]      
Rent expense $ 6,100 $ 6,500 $ 6,400
Assets aquired under capital leases 2,700 2,900  
Agreements, Future Payments, Due in One Year 5,636    
Agreements, Future Payments, Due in Two Years 2,125    
Agreements, Future Payments, Due in Three Years 1,550    
Agreements, Future Payments, Due in Four Years 1,182    
Agreements, Future Payments, Due in Five Years 994    
Agreements, Future Payments, Due Thereafter 1,593    
Matching contributions and plan administrative expenses 1,800 1,700 1,600
Cemetery business and accounting services expense 900 1,900 1,000
Cemetery Business And Accounting Services Expense Paid 600 $ 1,000 $ 1,900
Noncompete Agreements      
Loss Contingencies [Line Items]      
Agreements, Future Payments, Due in One Year 2,407    
Agreements, Future Payments, Due in Two Years 1,326    
Agreements, Future Payments, Due in Three Years 1,111    
Agreements, Future Payments, Due in Four Years 881    
Agreements, Future Payments, Due in Five Years 776    
Agreements, Future Payments, Due Thereafter 1,576    
Consulting Agreement      
Loss Contingencies [Line Items]      
Agreements, Future Payments, Due in One Year 1,509    
Agreements, Future Payments, Due in Two Years 680    
Agreements, Future Payments, Due in Three Years 439    
Agreements, Future Payments, Due in Four Years 301    
Agreements, Future Payments, Due in Five Years 218    
Agreements, Future Payments, Due Thereafter 17    
Employment Agreement      
Loss Contingencies [Line Items]      
Agreements, Future Payments, Due in One Year 1,720    
Agreements, Future Payments, Due in Two Years 119    
Agreements, Future Payments, Due in Three Years 0    
Agreements, Future Payments, Due in Four Years 0    
Agreements, Future Payments, Due in Five Years 0    
Agreements, Future Payments, Due Thereafter $ 0    
Minimum      
Loss Contingencies [Line Items]      
Agreements, Term of Contract 1 year    
Minimum | Noncompete Agreements      
Loss Contingencies [Line Items]      
Agreements, Term of Contract 1 year    
Minimum | Consulting Agreement      
Loss Contingencies [Line Items]      
Agreements, Term of Contract 1 year    
Minimum | Employment Agreement      
Loss Contingencies [Line Items]      
Agreements, Term of Contract 3 years    
Maximum      
Loss Contingencies [Line Items]      
Agreements, Term of Contract 12 years    
Maximum | Noncompete Agreements      
Loss Contingencies [Line Items]      
Agreements, Term of Contract 10 years    
Maximum | Consulting Agreement      
Loss Contingencies [Line Items]      
Agreements, Term of Contract 10 years    
Maximum | Employment Agreement      
Loss Contingencies [Line Items]      
Agreements, Term of Contract 4 years