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Related Party Transactions Summary Of Approximate Values By Year Found Within Consolidated Balance Sheets (Details) - USD ($)
$ in Thousands
Sep. 30, 2018
Dec. 31, 2017
Related Party Transaction [Line Items]    
Other investments $ 11,997 $ 12,032
Premiums and fees receivable 12,588 10,031
Title Insurance Agencies    
Related Party Transaction [Line Items]    
Other investments 6,129 6,594
Premiums and fees receivable $ 233 $ 720