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Common Stock (Tables) | 3 Months Ended
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Mar. 31, 2021
Share-based Payment Arrangement [Abstract] |
Schedule of restricted stock unit activity | The summary of restricted stock unit ("RSU") activity is as follows (in thousands, except per share data):
| Number of Shares |  | Weighted- Average Grant Date Fair Value |  | Aggregate Intrinsic Value
Nonvested units as of December 31, 2020 | 33,602 |  |  | $ | 41.49 |  |  | $ | 1,650,577 |
Granted | 8,195 |  |  | 58.18 |  |  |
Vested | (5,218) |  |  | 38.01 |  |  |
Canceled | (1,862) |  |  | 44.79 |  |  |
Nonvested units as of March 31, 2021 | 34,717 |  |  | $ | 45.84 |  |  | $ | 2,168,444 |

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- Definition Tabular disclosure of the change in restricted stock units (RSUs). + References No definition available. + Details
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