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Schedule III - Real Estate and Accumulated Depreciation (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | --- | --- | ---
Initial Cost |  |  |  |
Land | $ 359,777 |  |  |
Buildings and Improvements | 2,527,685 |  |  |
Net Improvements (Retirements) Since Acquisition | 729,778 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 403,998 |  |  |
Buildings and Improvements | 3,213,242 |  |  |
Total | 3,617,240 | $ 3,472,602 | $ 3,474,109 | $ 4,006,459
Accumulated Depreciation at December 31, 2022 | 1,063,060 | $ 957,450 | $ 896,561 | $ 973,318
PENNSYLVANIA SUBURBS | Six Tower Bridge (181 Washington Street) |  |  |  |
Initial Cost |  |  |  |
Land | 6,927 |  |  |
Buildings and Improvements | 14,722 |  |  |
Net Improvements (Retirements) Since Acquisition | 1,176 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 6,237 |  |  |
Buildings and Improvements | 16,588 |  |  |
Total | 22,825 |  |  |
Accumulated Depreciation at December 31, 2022 | 4,604 |  |  |
PENNSYLVANIA SUBURBS | 426 West Lancaster Avenue |  |  |  |
Initial Cost |  |  |  |
Land | 1,689 |  |  |
Buildings and Improvements | 6,756 |  |  |
Net Improvements (Retirements) Since Acquisition | 9,405 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 1,686 |  |  |
Buildings and Improvements | 16,164 |  |  |
Total | 17,850 |  |  |
Accumulated Depreciation at December 31, 2022 | 2,727 |  |  |
PENNSYLVANIA SUBURBS | 640 Freedom Business Center |  |  |  |
Initial Cost |  |  |  |
Land | 1,015 |  |  |
Buildings and Improvements | 20,098 |  |  |
Net Improvements (Retirements) Since Acquisition | 4,603 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 332 |  |  |
Buildings and Improvements | 25,384 |  |  |
Total | 25,716 |  |  |
Accumulated Depreciation at December 31, 2022 | 16,544 |  |  |
PENNSYLVANIA SUBURBS | 620 Freedom Business Center |  |  |  |
Initial Cost |  |  |  |
Land | 666 |  |  |
Buildings and Improvements | 13,118 |  |  |
Net Improvements (Retirements) Since Acquisition | 2,372 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 217 |  |  |
Buildings and Improvements | 15,939 |  |  |
Total | 16,156 |  |  |
Accumulated Depreciation at December 31, 2022 | 10,154 |  |  |
PENNSYLVANIA SUBURBS | 1000 First Avenue |  |  |  |
Initial Cost |  |  |  |
Land | 0 |  |  |
Buildings and Improvements | 13,708 |  |  |
Net Improvements (Retirements) Since Acquisition | 2,971 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 0 |  |  |
Buildings and Improvements | 16,679 |  |  |
Total | 16,679 |  |  |
Accumulated Depreciation at December 31, 2022 | 12,521 |  |  |
PENNSYLVANIA SUBURBS | 1060 First Avenue |  |  |  |
Initial Cost |  |  |  |
Land | 0 |  |  |
Buildings and Improvements | 13,665 |  |  |
Net Improvements (Retirements) Since Acquisition | 3,979 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 0 |  |  |
Buildings and Improvements | 17,644 |  |  |
Total | 17,644 |  |  |
Accumulated Depreciation at December 31, 2022 | 12,989 |  |  |
PENNSYLVANIA SUBURBS | 630 Freedom Business Center Drive |  |  |  |
Initial Cost |  |  |  |
Land | 666 |  |  |
Buildings and Improvements | 13,251 |  |  |
Net Improvements (Retirements) Since Acquisition | 2,864 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 219 |  |  |
Buildings and Improvements | 16,562 |  |  |
Total | 16,781 |  |  |
Accumulated Depreciation at December 31, 2022 | 10,946 |  |  |
PENNSYLVANIA SUBURBS | 1020 First Avenue |  |  |  |
Initial Cost |  |  |  |
Land | 0 |  |  |
Buildings and Improvements | 10,744 |  |  |
Net Improvements (Retirements) Since Acquisition | 4,306 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 0 |  |  |
Buildings and Improvements | 15,050 |  |  |
Total | 15,050 |  |  |
Accumulated Depreciation at December 31, 2022 | 11,050 |  |  |
PENNSYLVANIA SUBURBS | 1040 First Avenue |  |  |  |
Initial Cost |  |  |  |
Land | 0 |  |  |
Buildings and Improvements | 14,142 |  |  |
Net Improvements (Retirements) Since Acquisition | 4,915 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 0 |  |  |
Buildings and Improvements | 19,057 |  |  |
Total | 19,057 |  |  |
Accumulated Depreciation at December 31, 2022 | 14,165 |  |  |
PENNSYLVANIA SUBURBS | 610 Freedom Business Center Drive |  |  |  |
Initial Cost |  |  |  |
Land | 485 |  |  |
Buildings and Improvements | 9,602 |  |  |
Net Improvements (Retirements) Since Acquisition | 2,289 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 159 |  |  |
Buildings and Improvements | 12,217 |  |  |
Total | 12,376 |  |  |
Accumulated Depreciation at December 31, 2022 | 8,256 |  |  |
PENNSYLVANIA SUBURBS | 650 Park Avenue |  |  |  |
Initial Cost |  |  |  |
Land | 1,916 |  |  |
Buildings and Improvements | 4,378 |  |  |
Net Improvements (Retirements) Since Acquisition | (4,378) |  |  |
Gross Amount Which Carried |  |  |  |
Land | 1,916 |  |  |
Buildings and Improvements | 0 |  |  |
Total | 1,916 |  |  |
Accumulated Depreciation at December 31, 2022 | 0 |  |  |
PENNSYLVANIA SUBURBS | 600 Park Avenue |  |  |  |
Initial Cost |  |  |  |
Land | 1,012 |  |  |
Buildings and Improvements | 4,048 |  |  |
Net Improvements (Retirements) Since Acquisition | 50 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 1,012 |  |  |
Buildings and Improvements | 4,098 |  |  |
Total | 5,110 |  |  |
Accumulated Depreciation at December 31, 2022 | 2,660 |  |  |
PENNSYLVANIA SUBURBS | 933 First Avenue |  |  |  |
Initial Cost |  |  |  |
Land | 3,127 |  |  |
Buildings and Improvements | 20,794 |  |  |
Net Improvements (Retirements) Since Acquisition | (1,125) |  |  |
Gross Amount Which Carried |  |  |  |
Land | 3,127 |  |  |
Buildings and Improvements | 19,669 |  |  |
Total | 22,796 |  |  |
Accumulated Depreciation at December 31, 2022 | 4,823 |  |  |
PENNSYLVANIA SUBURBS | 500 North Gulph Road |  |  |  |
Initial Cost |  |  |  |
Land | 1,303 |  |  |
Buildings and Improvements | 5,201 |  |  |
Net Improvements (Retirements) Since Acquisition | 21,471 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 1,303 |  |  |
Buildings and Improvements | 26,672 |  |  |
Total | 27,975 |  |  |
Accumulated Depreciation at December 31, 2022 | 4,690 |  |  |
PENNSYLVANIA SUBURBS | 401 Plymouth Road |  |  |  |
Initial Cost |  |  |  |
Land | 6,199 |  |  |
Buildings and Improvements | 16,131 |  |  |
Net Improvements (Retirements) Since Acquisition | 14,515 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 6,199 |  |  |
Buildings and Improvements | 30,646 |  |  |
Total | 36,845 |  |  |
Accumulated Depreciation at December 31, 2022 | 15,527 |  |  |
PENNSYLVANIA SUBURBS | Metroplex (4000 Chemical Road) |  |  |  |
Initial Cost |  |  |  |
Land | 4,373 |  |  |
Buildings and Improvements | 24,546 |  |  |
Net Improvements (Retirements) Since Acquisition | 5,554 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 4,373 |  |  |
Buildings and Improvements | 30,100 |  |  |
Total | 34,473 |  |  |
Accumulated Depreciation at December 31, 2022 | 9,860 |  |  |
PENNSYLVANIA SUBURBS | 610 West Germantown Pike |  |  |  |
Initial Cost |  |  |  |
Land | 3,651 |  |  |
Buildings and Improvements | 14,514 |  |  |
Net Improvements (Retirements) Since Acquisition | 5,461 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 3,651 |  |  |
Buildings and Improvements | 19,975 |  |  |
Total | 23,626 |  |  |
Accumulated Depreciation at December 31, 2022 | 10,440 |  |  |
PENNSYLVANIA SUBURBS | 600 West Germantown Pike |  |  |  |
Initial Cost |  |  |  |
Land | 3,652 |  |  |
Buildings and Improvements | 15,288 |  |  |
Net Improvements (Retirements) Since Acquisition | 4,035 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 3,652 |  |  |
Buildings and Improvements | 19,323 |  |  |
Total | 22,975 |  |  |
Accumulated Depreciation at December 31, 2022 | 9,682 |  |  |
PENNSYLVANIA SUBURBS | 630 West Germantown Pike |  |  |  |
Initial Cost |  |  |  |
Land | 3,558 |  |  |
Buildings and Improvements | 14,743 |  |  |
Net Improvements (Retirements) Since Acquisition | 3,169 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 3,558 |  |  |
Buildings and Improvements | 17,912 |  |  |
Total | 21,470 |  |  |
Accumulated Depreciation at December 31, 2022 | 9,015 |  |  |
PENNSYLVANIA SUBURBS | 620 West Germantown Pike |  |  |  |
Initial Cost |  |  |  |
Land | 3,572 |  |  |
Buildings and Improvements | 14,435 |  |  |
Net Improvements (Retirements) Since Acquisition | 4,131 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 3,572 |  |  |
Buildings and Improvements | 18,566 |  |  |
Total | 22,138 |  |  |
Accumulated Depreciation at December 31, 2022 | 8,409 |  |  |
PENNSYLVANIA SUBURBS | 660 West Germantown Pike |  |  |  |
Initial Cost |  |  |  |
Land | 3,694 |  |  |
Buildings and Improvements | 5,487 |  |  |
Net Improvements (Retirements) Since Acquisition | 19,502 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 5,405 |  |  |
Buildings and Improvements | 23,278 |  |  |
Total | 28,683 |  |  |
Accumulated Depreciation at December 31, 2022 | 8,467 |  |  |
PENNSYLVANIA SUBURBS | 351 Plymouth Road |  |  |  |
Initial Cost |  |  |  |
Land | 1,043 |  |  |
Buildings and Improvements | 555 |  |  |
Net Improvements (Retirements) Since Acquisition | 0 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 1,043 |  |  |
Buildings and Improvements | 555 |  |  |
Total | 1,598 |  |  |
Accumulated Depreciation at December 31, 2022 | 246 |  |  |
PENNSYLVANIA SUBURBS | 150 Radnor Chester Road |  |  |  |
Initial Cost |  |  |  |
Land | 11,925 |  |  |
Buildings and Improvements | 36,986 |  |  |
Net Improvements (Retirements) Since Acquisition | 21,691 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 11,897 |  |  |
Buildings and Improvements | 58,705 |  |  |
Total | 70,602 |  |  |
Accumulated Depreciation at December 31, 2022 | 26,556 |  |  |
PENNSYLVANIA SUBURBS | One Radnor Corporate Center |  |  |  |
Initial Cost |  |  |  |
Land | 7,323 |  |  |
Buildings and Improvements | 28,613 |  |  |
Net Improvements (Retirements) Since Acquisition | 14,397 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 7,323 |  |  |
Buildings and Improvements | 43,010 |  |  |
Total | 50,333 |  |  |
Accumulated Depreciation at December 31, 2022 | 27,920 |  |  |
PENNSYLVANIA SUBURBS | 201 King of Prussia Road |  |  |  |
Initial Cost |  |  |  |
Land | 8,956 |  |  |
Buildings and Improvements | 29,811 |  |  |
Net Improvements (Retirements) Since Acquisition | 4,196 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 8,949 |  |  |
Buildings and Improvements | 34,014 |  |  |
Total | 42,963 |  |  |
Accumulated Depreciation at December 31, 2022 | 22,515 |  |  |
PENNSYLVANIA SUBURBS | 555 Lancaster Avenue |  |  |  |
Initial Cost |  |  |  |
Land | 8,014 |  |  |
Buildings and Improvements | 16,508 |  |  |
Net Improvements (Retirements) Since Acquisition | 10,772 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 8,609 |  |  |
Buildings and Improvements | 26,685 |  |  |
Total | 35,294 |  |  |
Accumulated Depreciation at December 31, 2022 | 9,722 |  |  |
PENNSYLVANIA SUBURBS | Four Radnor Corporate Center |  |  |  |
Initial Cost |  |  |  |
Land | 5,406 |  |  |
Buildings and Improvements | 21,390 |  |  |
Net Improvements (Retirements) Since Acquisition | 10,499 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 5,705 |  |  |
Buildings and Improvements | 31,590 |  |  |
Total | 37,295 |  |  |
Accumulated Depreciation at December 31, 2022 | 18,534 |  |  |
PENNSYLVANIA SUBURBS | Five Radnor Corporate Center |  |  |  |
Initial Cost |  |  |  |
Land | 6,506 |  |  |
Buildings and Improvements | 25,525 |  |  |
Net Improvements (Retirements) Since Acquisition | 9,755 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 6,578 |  |  |
Buildings and Improvements | 35,208 |  |  |
Total | 41,786 |  |  |
Accumulated Depreciation at December 31, 2022 | 16,306 |  |  |
PENNSYLVANIA SUBURBS | Three Radnor Corporate Center |  |  |  |
Initial Cost |  |  |  |
Land | 4,773 |  |  |
Buildings and Improvements | 17,961 |  |  |
Net Improvements (Retirements) Since Acquisition | 1,788 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 4,791 |  |  |
Buildings and Improvements | 19,731 |  |  |
Total | 24,522 |  |  |
Accumulated Depreciation at December 31, 2022 | 11,768 |  |  |
PENNSYLVANIA SUBURBS | Two Radnor Corporate Center |  |  |  |
Initial Cost |  |  |  |
Land | 3,937 |  |  |
Buildings and Improvements | 15,484 |  |  |
Net Improvements (Retirements) Since Acquisition | 2,552 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 3,942 |  |  |
Buildings and Improvements | 18,031 |  |  |
Total | 21,973 |  |  |
Accumulated Depreciation at December 31, 2022 | 11,383 |  |  |
PENNSYLVANIA SUBURBS | 130 Radnor Chester Road |  |  |  |
Initial Cost |  |  |  |
Land | 2,573 |  |  |
Buildings and Improvements | 8,338 |  |  |
Net Improvements (Retirements) Since Acquisition | (258) |  |  |
Gross Amount Which Carried |  |  |  |
Land | 2,567 |  |  |
Buildings and Improvements | 8,086 |  |  |
Total | 10,653 |  |  |
Accumulated Depreciation at December 31, 2022 | 4,099 |  |  |
PENNSYLVANIA SUBURBS | 170 Radnor Chester Road |  |  |  |
Initial Cost |  |  |  |
Land | 2,514 |  |  |
Buildings and Improvements | 8,147 |  |  |
Net Improvements (Retirements) Since Acquisition | 2,008 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 2,509 |  |  |
Buildings and Improvements | 10,160 |  |  |
Total | 12,669 |  |  |
Accumulated Depreciation at December 31, 2022 | 5,366 |  |  |
PENNSYLVANIA SUBURBS | 200 Radnor Chester Road |  |  |  |
Initial Cost |  |  |  |
Land | 3,366 |  |  |
Buildings and Improvements | 0 |  |  |
Net Improvements (Retirements) Since Acquisition | 3,740 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 3,366 |  |  |
Buildings and Improvements | 3,740 |  |  |
Total | 7,106 |  |  |
Accumulated Depreciation at December 31, 2022 | 1,137 |  |  |
PENNSYLVANIA SUBURBS | 101 West Elm Street |  |  |  |
Initial Cost |  |  |  |
Land | 6,251 |  |  |
Buildings and Improvements | 25,209 |  |  |
Net Improvements (Retirements) Since Acquisition | 2,846 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 6,251 |  |  |
Buildings and Improvements | 28,055 |  |  |
Total | 34,306 |  |  |
Accumulated Depreciation at December 31, 2022 | 12,533 |  |  |
PENNSYLVANIA SUBURBS | 1 West Elm Street |  |  |  |
Initial Cost |  |  |  |
Land | 3,557 |  |  |
Buildings and Improvements | 14,249 |  |  |
Net Improvements (Retirements) Since Acquisition | 8,203 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 3,557 |  |  |
Buildings and Improvements | 22,452 |  |  |
Total | 26,009 |  |  |
Accumulated Depreciation at December 31, 2022 | 7,302 |  |  |
PENNSYLVANIA SUBURBS | 250 King of Prussia Road |  |  |  |
Initial Cost |  |  |  |
Land | 0 |  |  |
Buildings and Improvements | 20,566 |  |  |
Net Improvements (Retirements) Since Acquisition | 12,733 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 976 |  |  |
Buildings and Improvements | 32,323 |  |  |
Total | 33,299 |  |  |
Accumulated Depreciation at December 31, 2022 | 626 |  |  |
PHILADELPHIA CBD | Cira Centre (2929 Arch Street) |  |  |  |
Initial Cost |  |  |  |
Land | 0 |  |  |
Buildings and Improvements | 208,570 |  |  |
Net Improvements (Retirements) Since Acquisition | 23,843 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 12,586 |  |  |
Buildings and Improvements | 219,827 |  |  |
Total | 232,413 |  |  |
Accumulated Depreciation at December 31, 2022 | 73,510 |  |  |
PHILADELPHIA CBD | Three Logan Square (1717 Arch Street) |  |  |  |
Initial Cost |  |  |  |
Land | 0 |  |  |
Buildings and Improvements | 98,188 |  |  |
Net Improvements (Retirements) Since Acquisition | 86,126 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 25,195 |  |  |
Buildings and Improvements | 159,119 |  |  |
Total | 184,314 |  |  |
Accumulated Depreciation at December 31, 2022 | 61,247 |  |  |
PHILADELPHIA CBD | One Logan Square (130 North 18th Street) |  |  |  |
Initial Cost |  |  |  |
Land | 14,496 |  |  |
Buildings and Improvements | 107,736 |  |  |
Net Improvements (Retirements) Since Acquisition | 21,614 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 14,473 |  |  |
Buildings and Improvements | 129,373 |  |  |
Total | 143,846 |  |  |
Accumulated Depreciation at December 31, 2022 | 70,363 |  |  |
PHILADELPHIA CBD | Two Logan Square (100 North 18th Street) |  |  |  |
Initial Cost |  |  |  |
Land | 16,066 |  |  |
Buildings and Improvements | 100,255 |  |  |
Net Improvements (Retirements) Since Acquisition | 34,198 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 16,066 |  |  |
Buildings and Improvements | 134,453 |  |  |
Total | 150,519 |  |  |
Accumulated Depreciation at December 31, 2022 | 61,597 |  |  |
PHILADELPHIA CBD | Cira Centre South Garage (129 South 30th Street) |  |  |  |
Initial Cost |  |  |  |
Land | 0 |  |  |
Buildings and Improvements | 76,008 |  |  |
Net Improvements (Retirements) Since Acquisition | 26,970 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 6,638 |  |  |
Buildings and Improvements | 96,340 |  |  |
Total | 102,978 |  |  |
Accumulated Depreciation at December 31, 2022 | 27,789 |  |  |
PHILADELPHIA CBD | 1900 Market Street |  |  |  |
Initial Cost |  |  |  |
Land | 7,768 |  |  |
Buildings and Improvements | 17,263 |  |  |
Net Improvements (Retirements) Since Acquisition | 61,760 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 7,768 |  |  |
Buildings and Improvements | 79,023 |  |  |
Total | 86,791 |  |  |
Accumulated Depreciation at December 31, 2022 | 30,016 |  |  |
PHILADELPHIA CBD | 3020 Market Street |  |  |  |
Initial Cost |  |  |  |
Land | 0 |  |  |
Buildings and Improvements | 21,417 |  |  |
Net Improvements (Retirements) Since Acquisition | 7,442 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 0 |  |  |
Buildings and Improvements | 28,859 |  |  |
Total | 28,859 |  |  |
Accumulated Depreciation at December 31, 2022 | 13,904 |  |  |
PHILADELPHIA CBD | 618-634 Market Street |  |  |  |
Initial Cost |  |  |  |
Land | 13,365 |  |  |
Buildings and Improvements | 5,791 |  |  |
Net Improvements (Retirements) Since Acquisition | 5,180 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 13,365 |  |  |
Buildings and Improvements | 10,971 |  |  |
Total | 24,336 |  |  |
Accumulated Depreciation at December 31, 2022 | 7,222 |  |  |
PHILADELPHIA CBD | FMC Tower at Cira Centre South (2929 Walnut Street) |  |  |  |
Initial Cost |  |  |  |
Land | 0 |  |  |
Buildings and Improvements | 400,294 |  |  |
Net Improvements (Retirements) Since Acquisition | 10,689 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 0 |  |  |
Buildings and Improvements | 410,983 |  |  |
Total | 410,983 |  |  |
Accumulated Depreciation at December 31, 2022 | 85,826 |  |  |
PHILADELPHIA CBD | 2100 Market Street |  |  |  |
Initial Cost |  |  |  |
Land | 18,827 |  |  |
Buildings and Improvements | 0 |  |  |
Net Improvements (Retirements) Since Acquisition | 6,292 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 18,854 |  |  |
Buildings and Improvements | 6,265 |  |  |
Total | 25,119 |  |  |
Accumulated Depreciation at December 31, 2022 | 2,280 |  |  |
PHILADELPHIA CBD | 1505-11 Race Street |  |  |  |
Initial Cost |  |  |  |
Land | 3,662 |  |  |
Buildings and Improvements | 6,061 |  |  |
Net Improvements (Retirements) Since Acquisition | 8 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 3,670 |  |  |
Buildings and Improvements | 6,061 |  |  |
Total | 9,731 |  |  |
Accumulated Depreciation at December 31, 2022 | 328 |  |  |
PHILADELPHIA CBD | 3000 Market Street |  |  |  |
Initial Cost |  |  |  |
Land | 18,924 |  |  |
Buildings and Improvements | 13,080 |  |  |
Net Improvements (Retirements) Since Acquisition | 17,349 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 18,924 |  |  |
Buildings and Improvements | 30,429 |  |  |
Total | 49,353 |  |  |
Accumulated Depreciation at December 31, 2022 | 2,608 |  |  |
PHILADELPHIA CBD | The Bulletin Building (3025 Market Street) |  |  |  |
Initial Cost |  |  |  |
Land | 0 |  |  |
Buildings and Improvements | 24,377 |  |  |
Net Improvements (Retirements) Since Acquisition | 44,081 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 0 |  |  |
Buildings and Improvements | 68,458 |  |  |
Total | 68,458 |  |  |
Accumulated Depreciation at December 31, 2022 | 11,490 |  |  |
PHILADELPHIA CBD | 3001-3003 JFK Boulevard |  |  |  |
Initial Cost |  |  |  |
Land | 0 |  |  |
Buildings and Improvements | 0 |  |  |
Net Improvements (Retirements) Since Acquisition | 111 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 0 |  |  |
Buildings and Improvements | 111 |  |  |
Total | 111 |  |  |
Accumulated Depreciation at December 31, 2022 | 32 |  |  |
METROPOLITAN WASHINGTON, D.C. | 6600 Rockledge Drive |  |  |  |
Initial Cost |  |  |  |
Land | 0 |  |  |
Buildings and Improvements | 37,421 |  |  |
Net Improvements (Retirements) Since Acquisition | 7,672 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 0 |  |  |
Buildings and Improvements | 45,093 |  |  |
Total | 45,093 |  |  |
Accumulated Depreciation at December 31, 2022 | 17,099 |  |  |
METROPOLITAN WASHINGTON, D.C. | 1676 International Drive |  |  |  |
Initial Cost |  |  |  |
Land | 18,437 |  |  |
Buildings and Improvements | 97,538 |  |  |
Net Improvements (Retirements) Since Acquisition | 37,113 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 18,785 |  |  |
Buildings and Improvements | 134,303 |  |  |
Total | 153,088 |  |  |
Accumulated Depreciation at December 31, 2022 | 35,718 |  |  |
METROPOLITAN WASHINGTON, D.C. | 8260 Greensboro Drive |  |  |  |
Initial Cost |  |  |  |
Land | 7,952 |  |  |
Buildings and Improvements | 33,964 |  |  |
Net Improvements (Retirements) Since Acquisition | 8,645 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 8,102 |  |  |
Buildings and Improvements | 42,459 |  |  |
Total | 50,561 |  |  |
Accumulated Depreciation at December 31, 2022 | 14,217 |  |  |
METROPOLITAN WASHINGTON, D.C. | 8521 Leesburg Pike |  |  |  |
Initial Cost |  |  |  |
Land | 4,316 |  |  |
Buildings and Improvements | 30,885 |  |  |
Net Improvements (Retirements) Since Acquisition | (1,511) |  |  |
Gross Amount Which Carried |  |  |  |
Land | 3,587 |  |  |
Buildings and Improvements | 30,103 |  |  |
Total | 33,690 |  |  |
Accumulated Depreciation at December 31, 2022 | 12,032 |  |  |
METROPOLITAN WASHINGTON, D.C. | Dabney Westwood |  |  |  |
Initial Cost |  |  |  |
Land | 1,732 |  |  |
Buildings and Improvements | 0 |  |  |
Net Improvements (Retirements) Since Acquisition | 3,690 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 819 |  |  |
Buildings and Improvements | 4,603 |  |  |
Total | 5,422 |  |  |
Accumulated Depreciation at December 31, 2022 | 185 |  |  |
AUSTIN, TX | 401-405 Colorado Street |  |  |  |
Initial Cost |  |  |  |
Land | 0 |  |  |
Buildings and Improvements | 100,448 |  |  |
Net Improvements (Retirements) Since Acquisition | 564 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 0 |  |  |
Buildings and Improvements | 101,012 |  |  |
Total | 101,012 |  |  |
Accumulated Depreciation at December 31, 2022 | 2,728 |  |  |
AUSTIN, TX | 11501 Burnet Road - Building 1 |  |  |  |
Initial Cost |  |  |  |
Land | 3,755 |  |  |
Buildings and Improvements | 22,702 |  |  |
Net Improvements (Retirements) Since Acquisition | 4 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 3,755 |  |  |
Buildings and Improvements | 22,706 |  |  |
Total | 26,461 |  |  |
Accumulated Depreciation at December 31, 2022 | 8,876 |  |  |
AUSTIN, TX | 11501 Burnet Road - Building 2 |  |  |  |
Initial Cost |  |  |  |
Land | 2,732 |  |  |
Buildings and Improvements | 16,305 |  |  |
Net Improvements (Retirements) Since Acquisition | 1,473 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 2,732 |  |  |
Buildings and Improvements | 17,778 |  |  |
Total | 20,510 |  |  |
Accumulated Depreciation at December 31, 2022 | 7,422 |  |  |
AUSTIN, TX | 11501 Burnet Road - Building 3 |  |  |  |
Initial Cost |  |  |  |
Land | 3,688 |  |  |
Buildings and Improvements | 22,348 |  |  |
Net Improvements (Retirements) Since Acquisition | 6,421 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 3,688 |  |  |
Buildings and Improvements | 28,769 |  |  |
Total | 32,457 |  |  |
Accumulated Depreciation at December 31, 2022 | 9,372 |  |  |
AUSTIN, TX | 11501 Burnet Road - Building 4 |  |  |  |
Initial Cost |  |  |  |
Land | 2,614 |  |  |
Buildings and Improvements | 15,740 |  |  |
Net Improvements (Retirements) Since Acquisition | 3 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 2,614 |  |  |
Buildings and Improvements | 15,743 |  |  |
Total | 18,357 |  |  |
Accumulated Depreciation at December 31, 2022 | 6,153 |  |  |
AUSTIN, TX | 11501 Burnet Road - Building 5 |  |  |  |
Initial Cost |  |  |  |
Land | 3,689 |  |  |
Buildings and Improvements | 22,354 |  |  |
Net Improvements (Retirements) Since Acquisition | 4 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 3,689 |  |  |
Buildings and Improvements | 22,358 |  |  |
Total | 26,047 |  |  |
Accumulated Depreciation at December 31, 2022 | 8,740 |  |  |
AUSTIN, TX | 11501 Burnet Road - Building 6 |  |  |  |
Initial Cost |  |  |  |
Land | 2,676 |  |  |
Buildings and Improvements | 15,972 |  |  |
Net Improvements (Retirements) Since Acquisition | 13,855 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 2,676 |  |  |
Buildings and Improvements | 29,827 |  |  |
Total | 32,503 |  |  |
Accumulated Depreciation at December 31, 2022 | 12,555 |  |  |
AUSTIN, TX | 11501 Burnet Road - Building 8 |  |  |  |
Initial Cost |  |  |  |
Land | 1,400 |  |  |
Buildings and Improvements | 7,422 |  |  |
Net Improvements (Retirements) Since Acquisition | 1,776 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 1,400 |  |  |
Buildings and Improvements | 9,198 |  |  |
Total | 10,598 |  |  |
Accumulated Depreciation at December 31, 2022 | 3,594 |  |  |
AUSTIN, TX | 11501 Burnet Road - Parking Garage |  |  |  |
Initial Cost |  |  |  |
Land | 0 |  |  |
Buildings and Improvements | 19,826 |  |  |
Net Improvements (Retirements) Since Acquisition | 1,538 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 0 |  |  |
Buildings and Improvements | 21,364 |  |  |
Total | 21,364 |  |  |
Accumulated Depreciation at December 31, 2022 | 8,740 |  |  |
AUSTIN, TX | Four Points Centre 3, 11120 Four Points Drive |  |  |  |
Initial Cost |  |  |  |
Land | 1,140 |  |  |
Buildings and Improvements | 0 |  |  |
Net Improvements (Retirements) Since Acquisition | 40,322 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 1,141 |  |  |
Buildings and Improvements | 40,321 |  |  |
Total | 41,462 |  |  |
Accumulated Depreciation at December 31, 2022 | 6,849 |  |  |
AUSTIN, TX | One Barton Skyway (1501 South MoPac Expressway) |  |  |  |
Initial Cost |  |  |  |
Land | 10,496 |  |  |
Buildings and Improvements | 47,670 |  |  |
Net Improvements (Retirements) Since Acquisition | 7,970 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 10,495 |  |  |
Buildings and Improvements | 55,641 |  |  |
Total | 66,136 |  |  |
Accumulated Depreciation at December 31, 2022 | 6,565 |  |  |
AUSTIN, TX | Two Barton Skyway (1601 South MoPac Expressway) |  |  |  |
Initial Cost |  |  |  |
Land | 10,849 |  |  |
Buildings and Improvements | 53,868 |  |  |
Net Improvements (Retirements) Since Acquisition | 3,889 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 10,848 |  |  |
Buildings and Improvements | 57,758 |  |  |
Total | 68,606 |  |  |
Accumulated Depreciation at December 31, 2022 | 7,271 |  |  |
AUSTIN, TX | Three Barton Skyway (1221 South MoPac Expressway) |  |  |  |
Initial Cost |  |  |  |
Land | 10,374 |  |  |
Buildings and Improvements | 47,624 |  |  |
Net Improvements (Retirements) Since Acquisition | 1,027 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 10,373 |  |  |
Buildings and Improvements | 48,652 |  |  |
Total | 59,025 |  |  |
Accumulated Depreciation at December 31, 2022 | 5,158 |  |  |
AUSTIN, TX | Four Barton Skyway (1301 South MoPac Expressway) |  |  |  |
Initial Cost |  |  |  |
Land | 13,301 |  |  |
Buildings and Improvements | 57,041 |  |  |
Net Improvements (Retirements) Since Acquisition | 7,611 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 13,300 |  |  |
Buildings and Improvements | 64,653 |  |  |
Total | 77,953 |  |  |
Accumulated Depreciation at December 31, 2022 | 7,096 |  |  |
AUSTIN, TX | Four Points Centre (11305 Four Points Drive) |  |  |  |
Initial Cost |  |  |  |
Land | 7,800 |  |  |
Buildings and Improvements | 43,581 |  |  |
Net Improvements (Retirements) Since Acquisition | 4,515 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 7,800 |  |  |
Buildings and Improvements | 48,096 |  |  |
Total | 55,896 |  |  |
Accumulated Depreciation at December 31, 2022 | 6,275 |  |  |
AUSTIN, TX | River Place - Building 1 (6500 River Place Boulevard) |  |  |  |
Initial Cost |  |  |  |
Land | 2,004 |  |  |
Buildings and Improvements | 17,680 |  |  |
Net Improvements (Retirements) Since Acquisition | 562 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 2,004 |  |  |
Buildings and Improvements | 18,242 |  |  |
Total | 20,246 |  |  |
Accumulated Depreciation at December 31, 2022 | 2,189 |  |  |
AUSTIN, TX | River Place - Building 2 (6500 River Place Boulevard) |  |  |  |
Initial Cost |  |  |  |
Land | 3,137 |  |  |
Buildings and Improvements | 29,254 |  |  |
Net Improvements (Retirements) Since Acquisition | 806 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 3,137 |  |  |
Buildings and Improvements | 30,060 |  |  |
Total | 33,197 |  |  |
Accumulated Depreciation at December 31, 2022 | 3,432 |  |  |
AUSTIN, TX | River Place - Building 3 (6500 River Place Boulevard) |  |  |  |
Initial Cost |  |  |  |
Land | 3,064 |  |  |
Buildings and Improvements | 26,705 |  |  |
Net Improvements (Retirements) Since Acquisition | 447 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 3,064 |  |  |
Buildings and Improvements | 27,152 |  |  |
Total | 30,216 |  |  |
Accumulated Depreciation at December 31, 2022 | 2,931 |  |  |
AUSTIN, TX | River Place - Building 4 (6500 River Place Boulevard |  |  |  |
Initial Cost |  |  |  |
Land | 2,273 |  |  |
Buildings and Improvements | 18,617 |  |  |
Net Improvements (Retirements) Since Acquisition | 1,716 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 2,273 |  |  |
Buildings and Improvements | 20,333 |  |  |
Total | 22,606 |  |  |
Accumulated Depreciation at December 31, 2022 | 2,903 |  |  |
AUSTIN, TX | River Place - Building 5 (6500 River Place Boulevard) |  |  |  |
Initial Cost |  |  |  |
Land | 1,752 |  |  |
Buildings and Improvements | 14,315 |  |  |
Net Improvements (Retirements) Since Acquisition | 692 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 1,752 |  |  |
Buildings and Improvements | 15,007 |  |  |
Total | 16,759 |  |  |
Accumulated Depreciation at December 31, 2022 | 1,655 |  |  |
AUSTIN, TX | River Place - Building 6 (6500 River Place Boulevard) |  |  |  |
Initial Cost |  |  |  |
Land | 1,598 |  |  |
Buildings and Improvements | 12,945 |  |  |
Net Improvements (Retirements) Since Acquisition | 703 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 1,598 |  |  |
Buildings and Improvements | 13,648 |  |  |
Total | 15,246 |  |  |
Accumulated Depreciation at December 31, 2022 | 1,490 |  |  |
AUSTIN, TX | River Place - Building 7 (6500 River Place Boulevard) |  |  |  |
Initial Cost |  |  |  |
Land | 1,801 |  |  |
Buildings and Improvements | 16,486 |  |  |
Net Improvements (Retirements) Since Acquisition | 1,208 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 1,801 |  |  |
Buildings and Improvements | 17,694 |  |  |
Total | 19,495 |  |  |
Accumulated Depreciation at December 31, 2022 | 2,468 |  |  |
AUSTIN, TX | Quarry Lake II (4516 Seton Center Parkway) |  |  |  |
Initial Cost |  |  |  |
Land | 3,970 |  |  |
Buildings and Improvements | 30,546 |  |  |
Net Improvements (Retirements) Since Acquisition | 1,174 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 3,867 |  |  |
Buildings and Improvements | 31,823 |  |  |
Total | 35,690 |  |  |
Accumulated Depreciation at December 31, 2022 | 3,611 |  |  |
OTHER | Main Street-Plaza 1000 |  |  |  |
Initial Cost |  |  |  |
Land | 2,732 |  |  |
Buildings and Improvements | 10,942 |  |  |
Net Improvements (Retirements) Since Acquisition | 284 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 2,732 |  |  |
Buildings and Improvements | 11,226 |  |  |
Total | 13,958 |  |  |
Accumulated Depreciation at December 31, 2022 | 11,054 |  |  |
OTHER | Main Street-Piazza |  |  |  |
Initial Cost |  |  |  |
Land | 696 |  |  |
Buildings and Improvements | 2,802 |  |  |
Net Improvements (Retirements) Since Acquisition | 3,586 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 704 |  |  |
Buildings and Improvements | 6,380 |  |  |
Total | 7,084 |  |  |
Accumulated Depreciation at December 31, 2022 | 4,547 |  |  |
OTHER | Main Street-Promenade |  |  |  |
Initial Cost |  |  |  |
Land | 532 |  |  |
Buildings and Improvements | 2,052 |  |  |
Net Improvements (Retirements) Since Acquisition | 311 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 532 |  |  |
Buildings and Improvements | 2,363 |  |  |
Total | 2,895 |  |  |
Accumulated Depreciation at December 31, 2022 | 1,561 |  |  |
OTHER | 920 North King Street |  |  |  |
Initial Cost |  |  |  |
Land | 6,141 |  |  |
Buildings and Improvements | 21,140 |  |  |
Net Improvements (Retirements) Since Acquisition | 7,108 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 6,141 |  |  |
Buildings and Improvements | 28,248 |  |  |
Total | 34,389 |  |  |
Accumulated Depreciation at December 31, 2022 | 16,427 |  |  |
OTHER | 300 Delaware Avenue |  |  |  |
Initial Cost |  |  |  |
Land | 6,369 |  |  |
Buildings and Improvements | 13,739 |  |  |
Net Improvements (Retirements) Since Acquisition | 2,750 |  |  |
Gross Amount Which Carried |  |  |  |
Land | 6,369 |  |  |
Buildings and Improvements | 16,489 |  |  |
Total | 22,858 |  |  |
Accumulated Depreciation at December 31, 2022 | $ 10,393 |  |  |

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