CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income (loss)		$ (197,403)	$ 53,992	$ 12,366
Comprehensive income (loss):
Unrealized gain (loss) on derivative financial instruments		(4,579)	5,371	4,817
Amortization of interest rate contracts	[1]	0	564	752
Total comprehensive income (loss)		(4,579)	5,935	5,569
Comprehensive income (loss)		(201,982)	59,927	17,935
Comprehensive (income) loss attributable to noncontrolling interest		628	(186)	(105)
Comprehensive income (loss) attributable to Brandywine Realty Trust		$ (201,354)	$ 59,741	$ 17,830

[1] Amounts reclassified from comprehensive income to interest expense within the Consolidated Statements of Operations.