v3.20.2

Stockholders' Equity - Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Stock-based compensation expense included in the unaudited condensed consolidated statements of operations
Stock-based compensation expense	$ 21,091	$ 9,967	$ 41,961	$ 19,551
Curriculum and teaching
Stock-based compensation expense included in the unaudited condensed consolidated statements of operations
Stock-based compensation expense	58	5	191	8
Servicing and support
Stock-based compensation expense included in the unaudited condensed consolidated statements of operations
Stock-based compensation expense	3,642	1,834	7,570	3,503
Technology and content development
Stock-based compensation expense included in the unaudited condensed consolidated statements of operations
Stock-based compensation expense	2,936	1,648	6,105	3,504
Marketing and sales
Stock-based compensation expense included in the unaudited condensed consolidated statements of operations
Stock-based compensation expense	1,853	1,487	5,086	2,743
General and administrative
Stock-based compensation expense included in the unaudited condensed consolidated statements of operations
Stock-based compensation expense	$ 12,602	$ 4,993	$ 23,009	$ 9,793

X

- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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+ References

No definition available.

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