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Revenues - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Line Items]
Total net revenues	$ 194,721	$ 198,478	$ 396,965	$ 396,856
Change, Total net revenues	$ (3,757)		$ 109
Change, Total net revenues, percent	(2.00%)		0.00%
Chegg Services
Disaggregation of Revenue [Line Items]
Total net revenues	$ 189,076	173,513	$ 373,888	335,864
Change, Total net revenues	$ 15,563		$ 38,024
Change, Total net revenues, percent	9.00%		11.00%
Required Materials
Disaggregation of Revenue [Line Items]
Total net revenues	$ 5,645	$ 24,965	$ 23,077	$ 60,992
Change, Total net revenues	$ (19,320)		$ (37,915)
Change, Total net revenues, percent	(77.00%)		(62.00%)

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