Net Loss Per Share - Narrative (Details) - shares |
3 Months Ended | 9 Months Ended |
|---|---|---|
Sep. 30, 2019 |
Sep. 30, 2019 |
|
| Common Class B | ||
| Net Loss Per Share (Textual) | ||
| Antidilutive securities (in shares) | 5,988,485 | 5,988,485 |
| Class C Common Stock | ||
| Net Loss Per Share (Textual) | ||
| Antidilutive securities (in shares) | 77,791,218 | 77,791,218 |
| Stock Options | ||
| Net Loss Per Share (Textual) | ||
| Antidilutive securities (in shares) | 632,847 | 632,847 |