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Stockholders' Equity - (Tables) | 6 Months Ended
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Jun. 30, 2022
Equity [Abstract] |
Schedule of common stock issued and outstanding | The following table shows the beginning and ending balances of our issued and outstanding common stock for the three and six months ended June 30, 2022 and 2021:
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2022 | 2021 | 2022 | 2021
Shares issued and outstanding, beginning balance | 62,258,896 |  | 65,881,233 |  |  | 65,968,224 |  | 66,456,663 |
Issuance of common stock from vested restricted stock units | 170,358 |  | 130,560 |  |  | 296,880 |  | 346,518 |
Issuance of common stock from exercise of stock options | 43,700 |  | 8,894 |  |  | 72,389 |  | 29,735 |
Issuance of common stock for employee stock purchase plan | 73,808 |  | 74,070 |  |  | 73,808 |  | 74,070 |
Issuance of common stock for the acquisition of Zenefits | — |  | — |  |  | 193,221 |  | — |
Repurchase of common stock | (408,478) |  | (181,250) |  |  | (4,419,423) |  | (925,251) |
Awards effectively repurchased for required employee withholding taxes | (50,981) |  | (49,391) |  |  | (97,796) |  | (117,619) |
Shares issued and outstanding, ending balance | 62,087,303 |  | 65,864,116 |  |  | 62,087,303 |  | 65,864,116 |

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- Definition Tabular disclosure of the change in common stock outstanding. + References No definition available. + Details
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