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

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