Segment and Geographic Information - Narrative (Details) $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2022 USD ($) segment	Dec. 31, 2021 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments (in segments) \| segment	2
Accounts receivable, net	$ 69,844	$ 67,287
University client 1 \| Credit concentration risk \| Accounts receivable, net \| Degree Program Segment deferred revenue
Segment Reporting Information [Line Items]
Percentage of concentration of credit risk	10.00%	14.00%
Accounts receivable, net	$ 6,900	$ 9,800
University client 2 \| Credit concentration risk \| Accounts receivable, net \| Degree Program Segment deferred revenue
Segment Reporting Information [Line Items]
Percentage of concentration of credit risk		13.00%
Accounts receivable, net		$ 8,800

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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