Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net income (loss)	$ 43,189	$ 6,529	$ (4,715)
Comprehensive income (loss):
Unrealized gain (loss) on derivative financial instruments	12,789	(7,338)	(4,499)
Settlement of interest rate swaps	0	(2,985)	0
Reclassification of realized (gains)/losses on derivative financial instruments to operations, net	286	297	153
Total comprehensive income (loss)	13,075	(10,026)	(4,346)
Comprehensive income (loss)	56,264	(3,497)	(9,061)
Comprehensive (income) loss attributable to non-controlling interest	(564)	261	427
Comprehensive income (loss) attributable to Brandywine Realty Trust	55,700	(3,236)	(8,634)
BRANDYWINE OPERATING PARTNERSHIP, L.P.
Net income (loss)	43,189	6,529	(4,715)
Comprehensive income (loss):
Unrealized gain (loss) on derivative financial instruments	12,789	(7,338)	(4,499)
Settlement of interest rate swaps	0	(2,985)	0
Reclassification of realized (gains)/losses on derivative financial instruments to operations, net	286	297	153
Total comprehensive income (loss)	13,075	(10,026)	(4,346)
Comprehensive income (loss)	$ 56,264	$ (3,497)	$ (9,061)