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Stock Compensation (Tables) | 9 Months Ended
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Sep. 30, 2023
Share-Based Payment Arrangement [Abstract] |
Schedule of Restricted Stock Unit Activity | A summary of restricted stock and restricted stock unit (RSU) activity for the nine months ended September 30, 2023 follows (shares in thousands):
|  | Restricted Stock and RSU |  | Weighted- Average Grant-Date Fair Value
Outstanding at December 31, 2022 |  | 2,230 |  |  | $ | 23.53 |
Granted |  | 3,862 |  |  | 4.14 |
Vested |  | (668) |  |  | 13.12 |
Forfeited and expired |  | (594) |  |  | 11.74 |
Outstanding at September 30, 2023 |  | 4,830 |  |  | 9.32 |
Schedule of Assumptions Used | The fair value of awards with market conditions was estimated using a Monte Carlo simulation with the following weighted-average assumptions:
| Nine Months Ended September 30,
| 2023 |  | 2022
Weighted-average fair value of grant | $ | 7.32 |  |  | $ | 34.14 |
Risk-free interest rate(i) | 4.51 | % |  | 1.72 | %
Expected volatility(ii) | 63.63 | % |  | 57.71 | %
Expected life of restricted stock units in years(iii) | 2.84 |  | 2.85
Expected dividend yield | — | % |  | — | %
(i)Represents the continuously compounded semi-annual zero-coupon U.S. treasury rate commensurate with the remaining performance period.
(ii)Based on historical volatility for the company that is commensurate with the length of the performance period.
(iii)Represents the remaining life of the longest performance period.

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- Definition Tabular disclosure of assumption used to determine benefit obligation and net periodic benefit cost of defined benefit plan. Includes, but is not limited to, discount rate, rate of compensation increase, expected long-term rate of return on plan assets and interest crediting rate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (k) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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- Definition Tabular disclosure of activity for outstanding award under share-based payment arrangement excluding share and unit options and nonvested award. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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