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Share-Based Compensation and Other Compensation Matters (Tables) | 12 Months Ended
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Dec. 31, 2022
Share-Based Payment Arrangement [Abstract] |
Reporting for share-based compensation expense | The table below sets forth our reporting for share based compensation cost (in thousands):
|  | For the Years Ended December 31,
|  | 2022 |  | 2021 |  | 2020
General, administrative and leasing expenses |  | $ | 7,643 |  |  | $ | 6,881 |  |  | $ | 5,385 |
Property operating expenses |  | 1,147 |  |  | 1,098 |  |  | 1,119 |
Capitalized to development activities |  | 847 |  |  | 719 |  |  | 556 |
Share-based compensation cost |  | $ | 9,637 |  |  | $ | 8,698 |  |  | $ | 7,060 |
Summary of restricted share and TB-PIU transactions under the entity's share-based compensation plans | The following table summarizes restricted shares under the share-based compensation plans for 2020, 2021 and 2022:
|  | Shares |  | Weighted Average Grant Date Fair Value
Unvested as of December 31, 2019 |  | 392,863 |  |  | $ | 27.49 |
Granted |  | 166,918 |  |  | $ | 25.22 |
Forfeited |  | (25,773) |  |  | $ | 27.12 |
Vested |  | (173,191) |  |  | $ | 28.14 |
Unvested as of December 31, 2020 |  | 360,817 |  |  | $ | 26.16 |
Granted |  | 177,995 |  |  | $ | 26.17 |
Forfeited |  | (39,664) |  |  | $ | 26.62 |
Vested |  | (164,575) |  |  | $ | 25.95 |
Unvested as of December 31, 2021 |  | 334,573 |  |  | $ | 26.22 |
Granted |  | 186,515 |  |  | $ | 26.50 |
Forfeited |  | (43,420) |  |  | $ | 26.47 |
Vested |  | (152,585) |  |  | $ | 26.39 |
Unvested as of December 31, 2022 |  | 325,083 |  |  | $ | 26.27 |
Unvested shares as of December 31, 2022 that are expected to vest |  | 297,282 |  |  | $ | 26.25 |
The following table summarizes TB-PIUs under the share-based compensation plan for 2020, 2021 and 2022:
|  | Number of TB-PIUs |  | Weighted Average Grant Date Fair Value
Unvested as of December 31, 2019 |  | 61,820 |  |  | $ | 26.01 |
Granted |  | 98,318 |  |  | $ | 25.47 |
Forfeited |  | (20,622) |  |  | $ | 25.50 |
Vested |  | (25,182) |  |  | $ | 26.30 |
Unvested as of December 31, 2020 |  | 114,334 |  |  | $ | 25.57 |
Granted |  | 93,983 |  |  | $ | 26.16 |
Vested |  | (45,244) |  |  | $ | 25.28 |
Unvested as of December 31, 2021 |  | 163,073 |  |  | $ | 25.99 |
Granted |  | 101,966 |  |  | $ | 26.39 |
Vested |  | (77,709) |  |  | $ | 26.04 |
Unvested as of December 31, 2022 |  | 187,330 |  |  | $ | 26.19 |
Unvested TB-PIUs as of December 31, 2022 that are expected to vest |  | 186,345 |  |  | $ | 26.19 |
Schedule of PB-PIU's Granted | We made the following grants of PB-PIUs to senior management team members from 2019 through 2022 (dollars in thousands, except per share data):
Grant Date |  | Number of PB-PIUs Granted |  |  |  |  |  | Grant Date Fair Value |  | Number of PB-PIUs Outstanding as of December 31, 2022
1/1/2019 |  | 193,682 |  |  |  |  |  |  | $ | 2,415 |  |  | — |
1/1/2020 |  | 176,758 |  |  |  |  |  |  | $ | 2,891 |  |  | 141,152 |
1/1/2021 |  | 227,544 |  |  |  |  |  |  | $ | 3,417 |  |  | 227,544 |
1/1/2022 |  | 231,838 |  |  |  |  |  |  | $ | 3,810 |  |  | 231,838 |
Schedule of payouts for defined performance under PB-PIU/PSUs | 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 Awards 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
The number of PSUs earned (“earned PSUs”) at the end of the performance period were determined based on the percentile rank of COPT’s TSR relative to a peer group of companies, as set forth in the following schedule:
Percentile Rank |  | Earned PSUs Payout %
75th or greater |  | 200% of PSUs granted
50th (target) |  | 100% of PSUs granted
25th |  | 50% of PSUs granted
Below 25th |  | 0% of PSUs granted
Schedule of assumptions used in Monte Carlo models for PB-PIUs | The grant date fair value and certain of the assumptions used in the Monte Carlo models for the PB-PIUs granted in 2020, 2021 and 2022 are set forth below:
Grant Date |  | Grant Date Fair Value Per PB-PIU at Target-Level Award |  | Baseline Common Share Value |  | Expected Volatility of Common Shares |  | Risk-free Interest Rate
1/1/2020 |  | $ | 32.71 |  |  | $ | 29.38 |  |  | 18.0 | % |  | 1.65 | %
1/1/2021 |  | $ | 30.03 |  |  | $ | 26.08 |  |  | 34.7 | % |  | 0.18 | %
1/1/2022 |  | $ | 32.87 |  |  | $ | 27.97 |  |  | 31.7 | % |  | 0.98 | %
Deferred Shares Granted | We made the following grants of deferred share awards to non-employee Trustees in 2020, 2021 and 2022 (dollars in thousands, except per share data):
Year of Grant |  | Number of Deferred Share Awards Granted |  | Aggregate Grant Date Fair Value |  | Grant Date Fair Value Per Award
2020 |  | 10,679 |  |  | $ | 253 |  |  | $ | 23.68 |
2021 |  | 3,416 |  |  | $ | 93 |  |  | $ | 27.12 |
2022 |  | 6,771 |  |  | $ | 166 |  |  | $ | 24.50 |

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