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Commitments and Contingencies (Details)
$ in Thousands
Aug. 12, 2020
numberOfPlaintiffs
Jul. 01, 2020
numberOfPlaintiffs
May 12, 2020
USD ($)
numberOfPlaintiffs
Mar. 03, 2020
USD ($)
Ingram Hosting Holdings LLC vs. Chegg | Pending Litigation        
Loss Contingencies [Line Items]        
Loss contingency, damages sought, value | $       $ 17,000
2018 Data Incident, Arbitration Demands        
Loss Contingencies [Line Items]        
Loss contingency, number of arbitration demands filed | numberOfPlaintiffs 577      
2018 Data Incident, Arbitration Demands | Pending Litigation        
Loss Contingencies [Line Items]        
Loss contingency, number of arbitration demands filed | numberOfPlaintiffs   1,007 15,107  
Loss contingency, damages sought, value | $     $ 25