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Stockholders' Equity - Summary of Stock Options Activity (Details) - $ / shares | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2020 | Dec. 31, 2019
Class Of Stock [Line Items] |  |
Stock Options Outstanding, Beginning balance | 980,884 |
Stock Options, Exercised | (9,324) |
Stock Options, Forfeited | (6,779) |
Stock Options Outstanding, Ending balance | 964,781 | 980,884
Stock Options, Vested and exercisable | 964,781 |
Stock Options, Vested and expected to vest | 964,781 |
Outstanding, Weighted-average exercise price, Beginning balance | $ 35.24 |
Weighted-average exercise price, Exercised | 20.00 |
Weighted-average exercise price, Forfeited | 48.23 |
Outstanding, Weighted-average exercise price, Ending balance | 35.30 | $ 35.24
Weighted-average exercise price, Vested and exercisable | 35.30 |
Weighted-average exercise price, Vested and expected to vest | $ 35.30 |
Remaining weighted-average contractual term, Outstanding | 2 years 1 month 2 days | 2 years 10 months 2 days
Remaining weighted-average contractual term, Vested and exercisable | 2 years 1 month 2 days |
Remaining weighted-average contractual term, Vested and expected to vest | 2 years 1 month 2 days |
Outstanding, Per share average intrinsic value | $ 5.56 | $ 34.07
Per share average intrinsic value, Vested and exercisable | 5.56 |
Per share average intrinsic value, Vested and expected to vest | 5.56 |
Minimum |  |
Class Of Stock [Line Items] |  |
Outstanding, Price per share, Beginning balance | 0.75 |
Price per share, Exercised | 1.17 |
Price per share, Forfeited | 44.19 |
Outstanding, Price per share, Ending balance | 0.75 | 0.75
Price per share, Vested and exercisable | 0.75 |
Price per share, Vested and expected to vest | 0.75 |
Maximum |  |
Class Of Stock [Line Items] |  |
Outstanding, Price per share, Beginning balance | 83.30 |
Price per share, Exercised | 44.19 |
Price per share, Forfeited | 56.72 |
Outstanding, Price per share, Ending balance | 83.30 | $ 83.30
Price per share, Vested and exercisable | 83.30 |
Price per share, Vested and expected to vest | $ 83.30 |

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