CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income		$ 53,992	$ 12,366	$ 307,326
Comprehensive income (loss):
Unrealized gain (loss) on derivative financial instruments		5,371	4,817	(5,972)
Amortization of interest rate contracts	[1]	564	752	752
Total comprehensive income (loss)		5,935	5,569	(5,220)
Comprehensive income		59,927	17,935	302,106
Comprehensive income attributable to noncontrolling interest		(186)	(105)	(1,770)
Comprehensive income attributable to Brandywine Realty Trust		$ 59,741	$ 17,830	$ 300,336

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