CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Net loss	$ 30,267	$ (16,414)	$ (12,737)	$ (5,276)	$ 13,853	$ (18,013)
Comprehensive income:
Unrealized gain on derivative financial instruments	781		6,646		6,807	1,355
Total comprehensive income	781	$ 6,026	6,646	$ (5,291)	6,807	1,355
Comprehensive income (loss)	31,048		(6,091)		20,660	(16,658)
Comprehensive (income) loss attributable to noncontrolling interest	(97)		21		(70)	22
Comprehensive income (loss) attributable to Brandywine Realty Trust	$ 30,951		$ (6,070)		$ 20,590	$ (16,636)