Segment Information - Schedule of Revenue by Product Line and Geographic Areas (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Segment Reporting Information [Line Items]
Net revenues	$ 63,262	$ 121,387
United States
Segment Reporting Information [Line Items]
Net revenues	51,534	105,497
International
Segment Reporting Information [Line Items]
Net revenues	11,728	15,890
Chegg Skilling
Segment Reporting Information [Line Items]
Net revenues	17,578	16,135
Academic Services
Segment Reporting Information [Line Items]
Net revenues	$ 45,684	$ 105,252

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details