v3.25.2
Goodwill (Details) - USD ($)
$ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Goodwill [Line Items]    
Total goodwill $ 158,029 $ 158,029
NFS Other Operating Segments    
Goodwill [Line Items]    
Total goodwill 0 0
Corporate and Other Activities    
Goodwill [Line Items]    
Total goodwill 0 0
Loan Servicing and Systems (LSS) | Operating Segments    
Goodwill [Line Items]    
Total goodwill 23,639 23,639
Education Technology Services and Payments (ETSP) | Operating Segments    
Goodwill [Line Items]    
Total goodwill 92,507 92,507
Asset Generation and Management | Operating Segments    
Goodwill [Line Items]    
Total goodwill 41,883 41,883
Nelnet Bank | Operating Segments    
Goodwill [Line Items]    
Total goodwill $ 0 $ 0