Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Net income		$ 307,326	$ 34,529	$ 135,472
Comprehensive income (loss):
Unrealized gain (loss) on derivative financial instruments		(5,972)	(8,210)	1,478
Amortization of interest rate contracts	[1]	752	770	1,191
Total comprehensive income (loss)		(5,220)	(7,440)	2,669
Comprehensive income		302,106	27,089	138,141
Comprehensive income attributable to noncontrolling interest		(1,770)	(221)	(993)
Comprehensive income attributable to Brandywine Realty Trust/Brandywine Operating Partnership		300,336	26,868	137,148
BRANDYWINE OPERATING PARTNERSHIP, L.P.
Net income		307,326	34,529	135,472
Comprehensive income (loss):
Unrealized gain (loss) on derivative financial instruments		(5,972)	(8,210)	1,478
Amortization of interest rate contracts	[1]	752	770	1,191
Total comprehensive income (loss)		(5,220)	(7,440)	2,669
Comprehensive income		302,106	27,089	138,141
Comprehensive income attributable to noncontrolling interest		(20)	(69)	(55)
Comprehensive income attributable to Brandywine Realty Trust/Brandywine Operating Partnership		$ 302,086	$ 27,020	$ 138,086

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