Stockholders' Deficit- Summary Of Total Authorized, Issued, And Outstanding Shares (Detail) - shares |
Sep. 30, 2020 |
Dec. 31, 2019 |
|---|---|---|
| Class of Stock [Line Items] | ||
| Common stock, shares authorized | 22,701,005,000 | 4,000,000,000 |
| Common stock, shares issued | 1,726,685,755 | 587,889,687 |
| Common stock, shares outstanding | 1,726,685,755 | 581,497,116 |
| Common Class A [Member] | ||
| Class of Stock [Line Items] | ||
| Common stock, shares authorized | 20,000,000,000 | 2,200,000,000 |
| Common stock, shares issued | 1,320,584,721 | 315,615,753 |
| Common stock, shares outstanding | 1,320,584,721 | 309,223,182 |
| Common Class B [Member] | ||
| Class of Stock [Line Items] | ||
| Common stock, shares authorized | 2,700,000,000 | 1,800,000,000 |
| Common stock, shares issued | 405,096,034 | 272,273,934 |
| Common stock, shares outstanding | 405,096,034 | 272,273,934 |
| Common Class F [Member] | ||
| Class of Stock [Line Items] | ||
| Common stock, shares authorized | 1,005,000 | 0 |
| Common stock, shares issued | 1,005,000 | 0 |
| Common stock, shares outstanding | 1,005,000 | 0 |