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Earnings Per Share (Details) - shares shares in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] |  |  |  |
Weighted Average Common Shares Outstanding - Basic (in shares) | 41,597 | 41,500 | 41,573 | 41,478
Effect of Dilutive Securities: |  |  |  |
Total Dilutive Shares (in shares) | 347 | 318 | 334 | 281
Weighted Average Common Shares Outstanding – Diluted (in shares) | 41,944 | 41,818 | 41,907 | 41,759
Stock Performance Awards |  |  |  |
Effect of Dilutive Securities: |  |  |  |
Effect of Dilutive Securities (in shares) | 259 | 223 | 239 | 183
Restricted Stock Awards |  |  |  |
Effect of Dilutive Securities: |  |  |  |
Effect of Dilutive Securities (in shares) | 85 | 75 | 94 | 80
Employee Stock Purchase Plan Shares and Other |  |  |  |
Effect of Dilutive Securities: |  |  |  |
Effect of Dilutive Securities (in shares) | 3 | 20 | 1 | 18

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