Background and Basis of Presentation (Policies)	6 Months Ended
Background and Basis of Presentation (Policies)	Jun. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) and applicable rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) regarding interim financial reporting. The condensed consolidated financial statements include the results of Chegg, Inc. and its wholly-owned subsidiaries. Significant intercompany balances and transactions have been eliminated. In the opinion of management, the accompanying unaudited condensed consolidated financial statements contain all adjustments, including normal recurring adjustments, necessary to present fairly our financial position as of June 30, 2023, our results of operations, results of comprehensive income (loss), and stockholders' equity for the three and six months ended June 30, 2023 and 2022 and cash flows for the six months ended June 30, 2023 and 2022. Our results of operations, results of comprehensive income (loss), stockholders' equity, and cash flows for the six months ended June 30, 2023 are not necessarily indicative of the results to be expected for the full year. We have a single operating and reportable segment and operating unit structure. The condensed consolidated financial statements and related financial information should be read in conjunction with the audited consolidated financial statements and the related notes thereto that are included in our Annual Report on Form 10-K for the year ended December 31, 2022 (the Annual Report on Form 10-K) filed with the SEC. Except for our policies on strategic investments, there have been no material changes to our significant accounting policies as compared to the significant accounting policies described in our Annual Report on Form 10-K.
Strategic Investments	Strategic Investments Investments in partnerships where we have the ability to exercise significant influence, but not control, over the investee are accounted for under the equity method of accounting. Equity method investments are initially recorded at cost and adjusted for our share of the investees' earnings or losses, based on our percentage ownership, recognized on a one-quarter lag basis within other income, net on our condensed consolidated statements of operations. Investments in entities where we do not have the ability to exercise significant influence and which do not have readily determinable fair values are accounted for at cost, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer, if any. Strategic investments are included in other assets on our condensed consolidated balance sheets. We assess our strategic investments for impairment whenever events or changes in circumstances indicate that they may be impaired. The factors we consider in our evaluation include, but are not limited to, a significant deterioration in the earnings performance or business prospects of the investee or factors that raise significant concerns about the investee’s ability to continue as a going concern, such as negative cash flows from operations or working capital deficiencies.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates, judgments, and assumptions that affect the reported amounts of assets and liabilities; the disclosure of contingent liabilities at the date of the financial statements; and the reported amounts of revenues and expenses during the reporting periods. We base our estimates on historical experience, knowledge of current business conditions, and various other factors we believe to be reasonable under the circumstances. These estimates are based on management’s knowledge about current events and expectations about actions we may undertake in the future. Actual results could differ from these estimates, and such differences could be material to our financial position and results of operations.
Reclassification of Prior Period Presentation	Reclassification of Prior Period Presentation In order to conform with current period presentation, $0.3 million of deferred tax assets during the six months ended June 30, 2022 has been reclassified from other non-cash items on our condensed consolidated statements of cash flows. This change in presentation does not affect previously reported results.
Recent Accounting Pronouncements	Recent Accounting Pronouncements Recently Issued Accounting Pronouncements Not Yet Adopted There were no accounting pronouncements issued during the six months ended June 30, 2023 that would have a material impact on our financial statements. Recently Adopted Accounting Pronouncements We did not adopt any accounting pronouncements during the six months ended June 30, 2023 that had a material impact on our financial statements.