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Stock-Based Compensation Plans (Tables) | 12 Months Ended
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Dec. 31, 2022
Share-Based Payment Arrangement [Abstract] |
Schedule of Stock-Based Compensation | We recorded stock-based compensation for Restricted Shares as follows:
| Year Ended December 31,
| 2022 |  | 2021 |  | 2020
| (Amounts in millions)
Stock-based compensation expense | $ | 25.5 |  |  | $ | 29.5 |  |  | $ | 27.3 |
Related income tax benefit | (5.8) |  |  | (6.7) |  |  | (6.2) |
Net stock-based compensation expense | $ | 19.7 |  |  | $ | 22.8 |  |  | $ | 21.1 |
Information Regarding Restricted Shares | The following table summarizes information regarding Restricted Shares:
| Year Ended December 31, 2022
| Shares |  | Weighted Average Grant-Date Fair Value
Number of unvested Restricted Shares: |  |  |
Outstanding — beginning of year | 1,671,011 |  |  | $ | 43.06 |
Granted | 982,654 |  |  | 32.91 |
Vested | (549,129) |  |  | 42.85 |
Canceled | (406,757) |  |  | 43.41 |
Outstanding — end of year | 1,697,779 |  |  | $ | 37.17 |

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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + 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 https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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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 https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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