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Related Party (Tables)
 12 Months Ended
Dec. 31, 2017
Related Party Transactions [Abstract]  
Schedule of payments on behalf of the Exchange and its subsidiaries
The amounts incurred on behalf of the Exchange and its subsidiaries were as follows for the years ended December 31:
(in thousands)
 
2017
 
2016
Erie Insurance Exchange (1)
 
 
 
 
Operating expenses
 
$
447,953

 
$
429,985

Investment expenses
 
30,393

 
27,240

 
 
478,346

 
457,225

Erie Family Life Insurance
 
 
 
 
Operating expenses
 
$
41,793

 
$
36,818

Investment expenses
 
2,196

 
2,070

 
 
43,989

 
38,888

Total cash settlements
 
$
522,335

 
$
496,113


(1) Includes wholly owned property and casualty subsidiaries.