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Revenues - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation of Revenue [Line Items]
Total net revenues	$ 164,739	$ 171,942	$ 561,704	$ 568,798
Change, Total net revenues	$ (7,203)		$ (7,094)
Change, Total net revenues, percent	(4.00%)		(1.00%)
Chegg Services
Disaggregation of Revenue [Line Items]
Total net revenues	$ 159,264	146,790	$ 533,152	482,654
Change, Total net revenues	$ 12,474		$ 50,498
Change, Total net revenues, percent	8.00%		10.00%
Required Materials
Disaggregation of Revenue [Line Items]
Total net revenues	$ 5,475	$ 25,152	$ 28,552	$ 86,144
Change, Total net revenues	$ (19,677)		$ (57,592)
Change, Total net revenues, percent	(78.00%)		(67.00%)

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