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Capitalized Software Development Costs (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Capitalized Software Development Costs [Line Items]      
Capitalized software development costs for software sold to customers $ 8,000 $ 8,100  
Capitalized software development costs, net 19,183 14,076  
Amortization of capitalized software development costs $ 2,696 $ 2,233 $ 2,175
Property and Casualty Exchange      
Capitalized Software Development Costs [Line Items]      
Capitalized computer software, amortization period 5 years    
Minimum | Continuing Medical Education Products      
Capitalized Software Development Costs [Line Items]      
Capitalized computer software, amortization period 3 years    
Maximum | Continuing Medical Education Products      
Capitalized Software Development Costs [Line Items]      
Capitalized computer software, amortization period 5 years