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Commitments and Contingencies (Details) $ in Thousands | Aug. 12, 2020 claim | Jul. 01, 2020 claim | May 12, 2020 USD ($) claim | Jul. 21, 2020 USD ($)
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VitalSource Technologies LLC (VST) vs. Chegg | Pending Litigation |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Estimate of possible loss | $ |  |  |  | $ 75
2018 Data Incident, Arbitration Demands |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Loss contingency, number of arbitration demands filed | claim | 577 |  |  |
2018 Data Incident, Arbitration Demands | Pending Litigation |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Loss contingency, number of arbitration demands filed | claim |  | 1,007 | 15,107 |
Loss contingency, damages sought, value | $ |  |  | $ 25 |

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