Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenue
Rents	$ 421,505	$ 486,731	$ 483,682
Tenant reimbursements	70,629	85,722	84,879
Termination fees	2,339	4,797	8,000
Third party management fees, labor reimbursement and leasing	26,674	18,764	17,200
Other	4,316	6,617	3,221
Total revenue	525,463	602,631	596,982
Operating expenses:
Property operating expenses	152,926	181,170	177,330
Real estate taxes	46,252	50,623	51,844
Third party management expenses	10,270	6,294	6,791
Depreciation and amortization	189,676	219,029	208,569
General and administrative expenses	26,596	29,406	26,779
Provision for impairment	40,517	82,208	1,765
Total operating expenses	466,237	568,730	473,078
Operating income	59,226	33,901	123,904
Other income (expense):
Interest income	1,236	1,224	3,974
Tax credit transaction income	0	19,955	11,853
Interest expense	(84,708)	(110,717)	(124,329)
Interest expense - amortization of deferred financing costs	(2,696)	(4,557)	(5,148)
Interest expense - financing obligation	(679)	(1,237)	(1,144)
Recognized hedge activity	0	0	(828)
Equity in loss of Real Estate Ventures	(11,503)	(811)	(790)
Net gain on disposition of real estate	116,983	20,496	4,901
Net gain on sale of undepreciated real estate	9,232	3,019	1,184
Net gain from remeasurement of investments in real estate ventures	0	758	458
Net gain (loss) on real estate venture transactions	20,000	7,229	(417)
Loss on early extinguishment of debt	(66,590)	0	(7,594)
Income (loss) from continuing operations	40,501	(30,740)	6,024
Discontinued operations:
Income from discontinued operations	0	0	18
Net gain on disposition of discontinued operations	0	0	900
Total discontinued operations	0	0	918
Net income (loss)	40,501	(30,740)	6,942
Net (income) loss attributable to non-controlling interests	(310)	339	33
Net (income) loss from continuing operations attributable to non-controlling interests - consolidated real estate ventures	(310)	339	43
Net income (loss) attributable to Brandywine Realty Trust	40,191	(30,401)	6,975
Distribution to preferred shareholders	(6,900)	(6,900)	(6,900)
Nonforfeitable dividends allocated to unvested restricted shareholders	(341)	(329)	(349)
Net income (loss) attributable to Common Shareholders of Brandywine Realty Trust	$ 32,950	$ (37,630)	$ (274)
Basic income (loss) per Common Share:
Continuing operations (USD per share)	$ 0.19	$ (0.21)	$ (0.01)
Discontinued operations (USD per share)	0	0	0.01
Net income (loss) attributable to common shareholders, Basic (USD per share)	0.19	(0.21)	0
Diluted income (loss) per Common Share:
Continuing operations (USD per share)	0.19	(0.21)	(0.01)
Discontinued operations (USD per share)	0	0	0.01
Net income (loss) attributable to common shareholders, Diluted (USD per share)	$ 0.19	$ (0.21)	$ 0
Basic weighted average shares outstanding (in shares)	175,018,163	178,162,160	166,202,649
Diluted weighted average shares outstanding (in shares)	176,010,814	178,162,160	166,202,649
Net income (loss) attributable to Brandywine Realty Trust
Total continuing operations	$ 40,191	$ (30,401)	$ 6,067
Total discontinued operations	0	0	908
Net income (loss) attributable to Brandywine Realty Trust	40,191	(30,401)	6,975
Net income (loss)	$ 40,501	$ (30,740)	$ 6,942
Distributions declared per Common Share (USD per share)	$ 0.63	$ 0.60	$ 0.60
BRANDYWINE OPERATING PARTNERSHIP, L.P.
Revenue
Rents	$ 421,505	$ 486,731	$ 483,682
Tenant reimbursements	70,629	85,722	84,879
Termination fees	2,339	4,797	8,000
Third party management fees, labor reimbursement and leasing	26,674	18,764	17,200
Other	4,316	6,617	3,221
Total revenue	525,463	602,631	596,982
Operating expenses:
Property operating expenses	152,926	181,170	177,330
Real estate taxes	46,252	50,623	51,844
Third party management expenses	10,270	6,294	6,791
Depreciation and amortization	189,676	219,029	208,569
General and administrative expenses	26,596	29,406	26,779
Provision for impairment	40,517	82,208	1,765
Total operating expenses	466,237	568,730	473,078
Operating income	59,226	33,901	123,904
Other income (expense):
Interest income	1,236	1,224	3,974
Tax credit transaction income	0	19,955	11,853
Interest expense	(84,708)	(110,717)	(124,329)
Interest expense - amortization of deferred financing costs	(2,696)	(4,557)	(5,148)
Interest expense - financing obligation	(679)	(1,237)	(1,144)
Recognized hedge activity	0	0	(828)
Equity in loss of Real Estate Ventures	(11,503)	(811)	(790)
Net gain on disposition of real estate	116,983	20,496	4,901
Net gain on sale of undepreciated real estate	9,232	3,019	1,184
Net gain from remeasurement of investments in real estate ventures	0	758	458
Net gain (loss) on real estate venture transactions	20,000	7,229	(417)
Loss on early extinguishment of debt	(66,590)	0	(7,594)
Income (loss) from continuing operations	40,501	(30,740)	6,024
Discontinued operations:
Income from discontinued operations	0	0	18
Net gain on disposition of discontinued operations	0	0	900
Total discontinued operations	0	0	918
Net income (loss)	40,501	(30,740)	6,942
Net (income) loss from continuing operations attributable to non-controlling interests - consolidated real estate ventures	(15)	3	44
Net income (loss) attributable to Brandywine Realty Trust	40,486	(30,737)	6,986
Distribution to preferred shareholders	(6,900)	(6,900)	(6,900)
Nonforfeitable dividends allocated to unvested restricted shareholders	(341)	(329)	(349)
Net income (loss) attributable to Common Shareholders of Brandywine Realty Trust	$ 33,245	$ (37,966)	$ (263)
Basic income (loss) per Common Share:
Continuing operations (USD per share)	$ 0.19	$ (0.21)	$ (0.01)
Discontinued operations (USD per share)	0	0	0.01
Net income (loss) attributable to common shareholders, Basic (USD per share)	0.19	(0.21)	0
Diluted income (loss) per Common Share:
Continuing operations (USD per share)	0.19	(0.21)	(0.01)
Discontinued operations (USD per share)	0	0	0.01
Net income (loss) attributable to common shareholders, Diluted (USD per share)	$ 0.19	$ (0.21)	$ 0
Basic weighted average shares outstanding (in shares)	176,523,800	179,697,262	167,942,246
Diluted weighted average shares outstanding (in shares)	177,516,451	179,697,262	167,942,246
Net income (loss) attributable to Brandywine Realty Trust
Total continuing operations	$ 40,501	$ (30,740)	$ 6,024
Total discontinued operations	0	0	918
Net income (loss) attributable to Brandywine Realty Trust	40,486	(30,737)	6,986
Net income (loss)	$ 40,501	$ (30,740)	$ 6,942
Distributions declared per Common Share (USD per share)	$ 0.63	$ 0.60	$ 0.60