Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Net income (loss)	$ 6,802	$ (6,234)	$ 16,138	$ (6,724)
Comprehensive income (loss):
Unrealized gain (loss) on derivative financial instruments	(10,650)	0	(10,623)	(613)
Reclassification of realized (gains)/losses on derivative financial instruments to operations, net	76	51	124	74
Unrealized loss on available-for-sale securities	(65)	0	(65)	0
Total comprehensive income (loss)	(10,639)	51	(10,564)	(539)
Comprehensive income (loss)	(3,837)	(6,183)	5,574	(7,263)
Comprehensive (income) loss attributable to non-controlling interest	163	164	29	226
Comprehensive income (loss) attributable to Brandywine Realty Trust	(3,674)	(6,019)	5,603	(7,037)
BRANDYWINE OPERATING PARTNERSHIP, L.P.
Net income (loss)	6,802	(6,234)	16,138	(6,724)
Comprehensive income (loss):
Unrealized gain (loss) on derivative financial instruments	(10,650)	0	(10,623)	(613)
Reclassification of realized (gains)/losses on derivative financial instruments to operations, net	76	51	124	74
Unrealized loss on available-for-sale securities	(65)	0	(65)	0
Total comprehensive income (loss)	(10,639)	51	(10,564)	(539)
Comprehensive income (loss) attributable to Brandywine Realty Trust	$ (3,837)	$ (6,183)	$ 5,574	$ (7,263)