v3.26.1
SEGMENT INFORMATION - Schedule of Unconsolidated Real Estate Ventures of Company's Reportable Segments (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Segment Reporting [Line Items]          
Investment in real estate ventures $ 336,851   $ 336,851   $ 314,326
Equity in income (loss) of real estate ventures (8,738) $ (14,832) (17,440) $ (25,343)  
Philadelphia CBD          
Segment Reporting [Line Items]          
Investment in real estate ventures 215,205   215,205   215,078
Equity in income (loss) of real estate ventures (1,991) (7,651) (4,299) (11,859)  
Mid-Atlantic Office JV          
Segment Reporting [Line Items]          
Investment in real estate ventures 10,359   10,359   10,877
Equity in income (loss) of real estate ventures (345) 436 (442) 275  
Austin, Texas          
Segment Reporting [Line Items]          
Investment in real estate ventures 94,519   94,519   71,611
Equity in income (loss) of real estate ventures (6,198) (7,510) (12,328) (13,398)  
Other          
Segment Reporting [Line Items]          
Investment in real estate ventures 16,768   16,768   $ 16,760
Equity in income (loss) of real estate ventures $ (204) $ (107) $ (371) $ (361)