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Capital Structure - Narrative (Details) |  | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | ---
Apr. 28, 2021 shares | Sep. 30, 2021 $ / shares shares | Sep. 30, 2021 vote $ / shares shares | Dec. 31, 2020 $ / shares shares | Sep. 01, 2020 $ / shares
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |
Preferred stock, shares authorized (in shares) |  | 100,000,000 | 100,000,000 | 0 |
Preferred stock, par value (in dollars per share) | $ / shares |  | $ 0.001 | $ 0.001 |  |
Common stock, shares authorized (in shares) |  | 1,250,000,000 | 1,250,000,000 | 257,058,262 |
Common stock, par value (in dollars per share) | $ / shares |  | $ 0.001 | $ 0.001 | $ 0.001 |
Common stock, shares issued (in shares) |  | 222,179,221 | 222,179,221 | 208,116,104 |
Common stock, shares outstanding (in shares) |  | 222,179,221 | 222,179,221 | 208,116,104 |
Common Class A |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |
Common stock, shares authorized (in shares) |  | 1,000,000,000 | 1,000,000,000 |  |
Common stock, par value (in dollars per share) | $ / shares |  |  |  |  | $ 0.01
Sale of stock, shares issued in transaction | 968,815 |  |  |  |
Common stock, shares issued (in shares) |  | 32,678,380 | 32,678,380 |  |
Common stock, shares outstanding (in shares) |  | 32,678,380 | 32,678,380 |  |
Number of votes per share | vote |  |  | 1 |  |
Number of shares issuable upon conversion (in shares) |  |  | 1 |  |
Common Class A | Existing Stockholders |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |
Sale of stock, shares issued in transaction | 150,984 | 16,149,173 | 18,365,060 |  |
Common Class B |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |
Common stock, shares authorized (in shares) |  | 250,000,000 | 250,000,000 |  |
Common stock, shares issued (in shares) |  | 189,500,841 | 189,500,841 |  |
Common stock, shares outstanding (in shares) |  | 189,500,841 | 189,500,841 |  |
Number of votes per share | vote |  |  | 5 |  |

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