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Stock-Based Compensation (Tables) | 3 Months Ended
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Mar. 31, 2022
Retirement Benefits [Abstract] |
Summary of company's stock option activities | A summary of the Corporation’s stock option activity for the three months ended March 31, 2022 is presented below:
Stock Options | Shares(a) | Weighted Average Exercise Price | Weighted Average Remaining Contractual Term | Aggregate Intrinsic Value(a)
Outstanding at December 31, 2021 | 4,814 |  | $ | 20.72 |  | 5.96 years | $ | 12,532 |
Exercised | (362) |  | 17.65 |  |  |
Outstanding at March 31, 2022 | 4,452 |  | $ | 20.97 |  | 5.85 years | $ | 11,138 |
Options Exercisable at March 31, 2022 | 3,775 |  | $ | 21.29 |  | 5.52 years | $ | 8,661 |
(a) In thousands
Summary of restricted stock awards activity (excluding salary shares) | The following table summarizes information about the Corporation’s restricted stock awards activity for the three months ended March 31, 2022:
Restricted Stock Awards | Shares(a) |  | Weighted Average Grant Date Fair Value
Outstanding at December 31, 2021 | 2,635 |  |  | $ | 19.87 |
Granted | 650 |  |  | 23.69 |
Vested | (618) |  |  | 23.73 |
Forfeited | (1) |  |  | 21.97 |
Outstanding at March 31, 2022 | 2,666 |  |  | $ | 20.70 |
(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 -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: 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 http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + 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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