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Share-Based Compensation and Other Compensation Matters (Tables) | 12 Months Ended
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Dec. 31, 2024
Share-Based Payment Arrangement [Abstract] |
Schedule of Reporting for Share-Based Compensation Cost | The table below sets forth our reporting for share based compensation cost (in thousands):
|  | For the Years Ended December 31,
|  | 2024 |  | 2023 |  | 2022
General, administrative, leasing and other expenses |  | $ | 9,031 |  |  | $ | 7,255 |  |  | $ | 7,643 |
Property operating expenses |  | 1,412 |  |  | 1,289 |  |  | 1,147 |
Capitalized to development activities |  | 525 |  |  | 576 |  |  | 847 |
Share-based compensation cost |  | $ | 10,968 |  |  | $ | 9,120 |  |  | $ | 9,637 |
Schedule of Restricted Share and TB-PIU Activity | The following table summarizes restricted shares activity under our share-based compensation plan for 2022, 2023 and 2024:
|  | Shares |  | Weighted Average Grant Date Fair Value
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 |
Granted |  | 220,336 |  |  | $ | 25.38 |
Forfeited |  | (39,474) |  |  | $ | 26.03 |
Vested |  | (152,490) |  |  | $ | 26.09 |
Unvested as of December 31, 2023 |  | 353,455 |  |  | $ | 25.82 |
Granted |  | 184,477 |  |  | $ | 25.58 |
Forfeited |  | (25,152) |  |  | $ | 26.20 |
Vested |  | (159,766) |  |  | $ | 25.85 |
Unvested as of December 31, 2024 |  | 353,014 |  |  | $ | 25.65 |
Unvested shares as of December 31, 2024 that are expected to vest |  | 315,582 |  |  | $ | 25.61 |
The following table summarizes TB-PIUs activity under our share-based compensation plan for 2022, 2023 and 2024:
|  | Number of TB-PIUs |  | Weighted Average Grant Date Fair Value
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 |
Granted |  | 123,900 |  |  | $ | 25.40 |
Forfeited |  | (27,182) |  |  | $ | 26.46 |
Vested |  | (89,633) |  |  | $ | 25.95 |
Unvested as of December 31, 2023 |  | 194,415 |  |  | $ | 25.76 |
Granted |  | 127,795 |  |  | $ | 24.57 |
Vested |  | (98,271) |  |  | $ | 25.63 |
Unvested as of December 31, 2024 |  | 223,939 |  |  | $ | 25.14 |
Unvested TB-PIUs as of December 31, 2024 that are expected to vest |  | 222,554 |  |  | $ | 25.14 |
Schedule of PB-PIU's Granted | We made the following grants of PB-PIUs to senior management team members from 2020 through 2024 (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, 2024
1/1/2020 |  | 176,758 |  |  |  |  |  |  | $ | 2,891 |  |  | — |
1/1/2021 |  | 227,544 |  |  |  |  |  |  | $ | 3,417 |  |  | — |
1/1/2022 |  | 231,838 |  |  |  |  |  |  | $ | 3,810 |  |  | 192,996 |
1/1/2023 |  | 275,402 |  |  |  |  |  |  | $ | 4,343 |  |  | 225,590 |
1/1/2024 |  | 299,766 |  |  |  |  |  |  | $ | 5,405 |  |  | 299,766 |
Schedule of Payouts for Defined Performance Under PB-PIU | The number of earned awards following the end of the performance period will be determined based on the percentile rank of COPT Defense’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
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 2022, 2023 and 2024 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
1/1/2022 |  | $ | 32.87 |  |  | $ | 27.97 |  |  | 31.7 | % |  | 0.98 | %
1/1/2023 |  | $ | 31.54 |  |  | $ | 25.94 |  |  | 35.0 | % |  | 4.28 | %
1/1/2024 |  | $ | 36.06 |  |  | $ | 25.63 |  |  | 25.9 | % |  | 4.13 | %
Schedule of Deferred Shares Granted | We made the following grants of deferred share awards to non-employee Trustees in 2022, 2023 and 2024 (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
2022 |  | 6,771 |  |  | $ | 166 |  |  | $ | 24.50 |
2023 |  | 9,046 |  |  | $ | 215 |  |  | $ | 23.75 |
2024 |  | 8,796 |  |  | $ | 217 |  |  | $ | 24.66 |

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