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Stock-Based Compensation (Tables) | 9 Months Ended
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Sep. 30, 2024
Retirement Benefits [Abstract] |
Share-Based Payment Arrangement, Option, Activity [Table Text Block] | A summary of the Corporation’s stock option activity for the nine months ended September 30, 2024 is presented below:
Stock Options | Shares(a) | Weighted Average Exercise Price | Weighted Average Remaining Contractual Term | Aggregate Intrinsic Value(a)
Outstanding at December 31, 2023 | 3,792 |  | $ | 21.25 |  | 4.26 years | $ | 5,834 |
Exercised | 679 |  | 18.76 |  |  |
Forfeited or expired | 49 |  | 24.81 |  |  |
Outstanding at September 30, 2024 | 3,064 |  | $ | 21.75 |  | 3.46 years | $ | 4,197 |
Options Exercisable at September 30, 2024 | 3,064 |  | $ | 21.75 |  | 3.46 years | $ | 4,197 |
(a) In thousands
Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block] | The following table summarizes information about the Corporation’s restricted stock awards activity for the nine months ended September 30, 2024:
Restricted Stock | Shares(a) | Weighted Average Grant Date Fair Value
Outstanding at December 31, 2023 | 2,349 |  | $ | 21.20 |
Granted | 823 |  | 20.78 |
Vested | 774 |  | 23.72 |
Forfeited | 60 |  | 21.94 |
Outstanding at September 30, 2024 | 2,338 |  | $ | 21.26 |
(a) In thousands

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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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