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Stock-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2021
Share-based Payment Arrangement [Abstract] |
Schedule of Changes of RSUs and Related Information | The following table presents the changes in RSUs outstanding and related information (in thousands, except per unit prices):
| Number of Units | Weighted Average Grant Date Fair Value Per Unit
Unvested balance at December 31, 2020 | 14,292 |  | $ | 23.70 |
Granted | 9,357 |  | 20.64 |
Vested | (6,439) |  | 25.10 |
Forfeited | (1,175) |  | 21.98 |
Unvested balance at December 31, 2021 | 16,035 |  | $ | 21.50 |
Schedule of Changes of PSUs and Related Information | The following table presents the changes in PSUs outstanding and related information (in thousands, except per unit prices):
| Number of Units | Weighted Average Grant Date Fair Value Per Unit
Unvested balance at December 31, 2020 | 3,161 |  | $ | 25.39 |
Granted | 1,352 |  | 22.14 |
Vested | (637) |  | 35.16 |
Forfeited | (174) |  | 24.43 |
Unvested balance at December 31, 2021 | 3,702 |  | $ | 22.57 |
Schedule of Changes in Stock Options Outstanding | The following table presents the changes in stock options outstanding and related information (in thousands, except per option prices):
| Number of Options | Weighted Average Exercise Price Per Option
Outstanding at December 31, 2020 | 7,285 |  | $ | 32.63 |
Exercised | (438) |  | 22.48 |
Forfeited | (11) |  | 26.42 |
Expired | (1,587) |  | 40.13 |
Outstanding at December 31, 2021 | 5,249 |  | $ | 31.25 |
Exercisable at December 31, 2021 | 4,719 |  | $ | 32.18 |

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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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