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Stockholders' Equity - Amended and Restated Certificate of Incorporation (Details) - $ / shares | Dec. 31, 2020 | Dec. 31, 2019 | Jun. 25, 2015
--- | --- | --- | ---
Class of Stock [Line Items] |  |  |
Capital stock, shares authorized (in shares) |  |  | 325,000,000
Preferred stock, shares authorized (in shares) | 25,000,000 | 25,000,000 | 25,000,000
Class A common stock |  |  |
Class of Stock [Line Items] |  |  |
Common stock, shares authorized (in shares) | 250,000,000 | 250,000,000 |
Common stock, par value (usd per share) | $ 0.0001 | $ 0.0001 |
Class B common stock |  |  |
Class of Stock [Line Items] |  |  |
Common stock, shares authorized (in shares) | 50,000,000 | 50,000,000 |
Common stock, par value (usd per share) | $ 0.0001 | $ 0.0001 |
Common Stock | Class A common stock |  |  |
Class of Stock [Line Items] |  |  |
Common stock, shares authorized (in shares) |  |  | 250,000,000
Common stock, par value (usd per share) |  |  | $ 0.0001
Common Stock | Class B common stock |  |  |
Class of Stock [Line Items] |  |  |
Common stock, shares authorized (in shares) |  |  | 50,000,000
Common stock, par value (usd per share) |  |  | $ 0.0001
Preferred stock |  |  |
Class of Stock [Line Items] |  |  |
Preferred stock, shares authorized (in shares) |  |  | 25,000,000

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