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Commitments and Contingencies (Details) $ in Thousands | Aug. 12, 2020 numberOfPlaintiffs | Jul. 01, 2020 numberOfPlaintiffs | May 12, 2020 USD ($) numberOfPlaintiffs | Mar. 03, 2020 USD ($) | Jul. 21, 2020 USD ($)
--- | --- | --- | --- | --- | ---
2018 Data Incident, Arbitration Demands |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of arbitration demands filed | numberOfPlaintiffs | 577 |  |  |  |
2018 Data Incident, Arbitration Demands | Pending Litigation |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of arbitration demands filed | numberOfPlaintiffs |  | 1,007 | 15,107 |  |
Damages sought, value |  |  | $ 25 |  |
Ingram Hosting Holdings LLC vs. Chegg | Pending Litigation |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Damages sought, value |  |  |  | $ 17,000 |
VitalSource Technologies LLC (VST) vs. Chegg | Pending Litigation |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Estimate of possible loss |  |  |  |  | $ 75

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