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Revenues - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Total net revenues	$ 202,244	$ 198,378
Change, Total net revenues	$ 3,866
Change, Total net revenues, percent	2.00%
Chegg Services
Disaggregation of Revenue [Line Items]
Total net revenues	$ 184,812	162,351
Change, Total net revenues	$ 22,461
Change, Total net revenues, percent	14.00%
Required Materials
Disaggregation of Revenue [Line Items]
Total net revenues	$ 17,432	$ 36,027
Change, Total net revenues	$ (18,595)
Change, Total net revenues, percent	(52.00%)

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