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Share-Based Compensation (Tables) | 3 Months Ended
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Mar. 31, 2023
Share-Based Payment Arrangement [Abstract] |
Summary of restricted share and TB-PIU transactions under the entity's share-based compensation plans | The following table summarizes restricted share activity under our share-based compensation plans for the three months ended March 31, 2023:
|  | Number of Shares |  | Weighted Average Grant Date Fair Value
Unvested as of December 31, 2022 |  | 325,083 |  |  | $ | 26.27 |
Granted |  | 158,242 |  |  | $ | 25.72 |
Forfeited |  | (24,510) |  |  | $ | 25.89 |
Vested |  | (124,838) |  |  | $ | 26.02 |
Unvested as of March 31, 2023 |  | 333,977 |  |  | $ | 26.13 |
The following table summarizes TB-PIUs activity under our share-based compensation plans for the three months ended March 31, 2023:
|  | Number of TB-PIUs |  | Weighted Average Grant Date Fair Value
Unvested as of December 31, 2022 |  | 187,330 |  |  | $ | 26.19 |
Granted |  | 82,334 |  |  | $ | 25.72 |
Forfeited |  | (27,182) |  |  | $ | 26.46 |
Vested |  | (73,869) |  |  | $ | 26.07 |
Unvested as of March 31, 2023 |  | 168,613 |  |  | $ | 25.97 |
Schedule of payouts for defined performance under PB-PIUs | The number of earned awards at the end of the performance period will be determined based on the percentile rank of COPT’s total shareholder return (“TSR”) relative to a peer group of companies, as set forth in the following schedule:
Percentile Rank |  | Earned PB-PIUs Payout %
75th or greater |  | 100% of PB-PIUs granted
50th (target) |  | 50% of PB-PIUs granted
25th |  | 25% of PB-PIUs granted
Below 25th |  | 0% of PB-PIUs granted

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- Definition Schedule of payouts for defined performance under performance-based awards of share-based compensation + References No definition available. + Details
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- References No definition available. + Details
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- Definition Tabular disclosure of the changes in outstanding nonvested shares. + 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)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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