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Incentive Plans (Tables) | 9 Months Ended
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Sep. 30, 2021
Share-based Payment Arrangement [Abstract] |
Summary of Awards Granted | During the first nine months of 2021, the Committee granted the following awards from the 2020 Long-Term Plan: 2020 Long-Term Incentive Plan
Type of Award | Number of Awards Granted |  | Grant Date |  | Grant Date Fair Value |  | Valuation Methodology
Performance Based RSUs 1 | 1,156,800 |  |  | February 2, 2021 |  | $ | 16.03 |  |  | Monte Carlo at Grant Date
Time Based RSUs 2 | 385,600 |  |  | February 2, 2021 |  | $ | 12.30 |  |  | Average Stock Price at Grant Date
Cash Settled RSUs 3 | 1,022,700 |  |  | February 2, 2021 |  | $ | 12.30 |  |  | Average Stock Price at Grant Date
1 Performance based RSUs are scheduled to vest over a three year performance period. 2 Time based RSUs are generally scheduled to vest over three years from the date of grant. 3 Cash settled RSUs are scheduled to vest over three years from the date of grant. During the first nine months of 2021, the Committee granted the following awards to Non-Employee Directors: 2018 Stock Plan for Non-Employee Directors
Type of Award | Number of Awards Granted |  | Grant Date |  | Grant Date Fair Value |  | Valuation Methodology
Time Based RSUs 1 | 182,652 |  |  | February 3, 2021 |  | $ | 13.14 |  |  | Closing Stock Price at Grant Date
1 Non-employee directors time-based RSUs are scheduled to vest in February 2022. 2021 Stock Plan for Non-Employee Directors
Type of Award | Number of Awards Granted |  | Grant Date |  | Grant Date Fair Value |  | Valuation Methodology
Time Based RSUs 1 | 5,655 |  |  | June 10, 2021 |  | $ | 23.58 |  |  | Closing Stock Price at Grant Date
1 Non-employee directors time-based RSUs are scheduled to vest in February 2022.
Share-Based Plans, Amounts Recognized in the Financial Statements | Amounts recognized in the financial statements with respect to share-based plans are shown in the following table:
| Nine Months Ended September 30,
(Thousands of dollars) | 2021 |  | 2020
Compensation charged against income before tax benefit | $ | 29,145 |  |  | 17,542 |
Related income tax benefit recognized in income | 4,120 |  |  | 2,278 |

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- Definition Tabular disclosure of share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit. + 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 (h)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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