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Goodwill (Details) - USD ($)
$ in Thousands
Sep. 30, 2019
Dec. 31, 2018
Goodwill [Line Items]    
Goodwill $ 156,912 $ 156,912
Loan servicing and systems revenue    
Goodwill [Line Items]    
Goodwill 23,639 23,639
Education technology, services, and payment processing revenue    
Goodwill [Line Items]    
Goodwill 70,278 70,278
Communications    
Goodwill [Line Items]    
Goodwill 21,112 21,112
Asset Generation and Management    
Goodwill [Line Items]    
Goodwill 41,883 41,883
Corporate and Other Activities    
Goodwill [Line Items]    
Goodwill $ 0 $ 0