Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenue
Revenue	$ 136,837	$ 144,151	$ 281,925	$ 288,047
Operating expenses
Property operating expenses	33,292	38,684	70,753	78,184
Real estate taxes	16,815	16,089	33,602	31,872
Third party management expenses	2,375	2,449	5,037	4,566
Depreciation and amortization	49,743	51,667	101,781	103,111
General and administrative expenses	8,343	8,399	16,904	18,243
Total operating expenses	110,568	117,288	228,077	235,976
Gain on sale of real estate
Net gain on disposition of real estate	0	0	2,586	0
Net gain on sale of undepreciated real estate	201	250	201	1,251
Total gain on sale of real estate	201	250	2,787	1,251
Operating income	26,470	27,113	56,635	53,322
Other income (expense):
Interest income	445	553	1,020	1,078
Interest expense	(20,191)	(20,516)	(40,200)	(40,873)
Interest expense - amortization of deferred financing costs	(731)	(666)	(1,480)	(1,332)
Equity in loss of Real Estate Ventures	(2,203)	(1,491)	(4,094)	(2,849)
Net gain on real estate venture transactions	0	1,276	0	1,535
Net income before income taxes	3,790	6,269	11,881	10,881
Income tax (provision) benefit	230	(17)	226	(46)
Net income	4,020	6,252	12,107	10,835
Net income attributable to noncontrolling interests	(24)	(47)	(89)	(107)
Net income attributable to Brandywine Realty Trust	3,996	6,205	12,018	10,728
Nonforfeitable dividends allocated to unvested restricted shareholders	(93)	(93)	(224)	(212)
Net income attributable to Common Shareholders of Brandywine Realty Trust	$ 3,903	$ 6,112	$ 11,794	$ 10,516
Basic income per Common Share (in dollars per share)	$ 0.02	$ 0.03	$ 0.07	$ 0.06
Diluted income per Common Share (in dollars per share)	$ 0.02	$ 0.03	$ 0.07	$ 0.06
Basic weighted average shares outstanding (in shares)	170,518,095	176,143,206	173,294,031	176,001,071
Diluted weighted average shares outstanding (in shares)	170,770,078	176,690,824	173,605,948	176,578,140
BRANDYWINE OPERATING PARTNERSHIP, L.P.
Revenue
Revenue	$ 136,837	$ 144,151	$ 281,925	$ 288,047
Operating expenses
Property operating expenses	33,292	38,684	70,753	78,184
Real estate taxes	16,815	16,089	33,602	31,872
Third party management expenses	2,375	2,449	5,037	4,566
Depreciation and amortization	49,743	51,667	101,781	103,111
General and administrative expenses	8,343	8,399	16,904	18,243
Total operating expenses	110,568	117,288	228,077	235,976
Gain on sale of real estate
Net gain on disposition of real estate	0	0	2,586	0
Net gain on sale of undepreciated real estate	201	250	201	1,251
Total gain on sale of real estate	201	250	2,787	1,251
Operating income	26,470	27,113	56,635	53,322
Other income (expense):
Interest income	445	553	1,020	1,078
Interest expense	(20,191)	(20,516)	(40,200)	(40,873)
Interest expense - amortization of deferred financing costs	(731)	(666)	(1,480)	(1,332)
Equity in loss of Real Estate Ventures	(2,203)	(1,491)	(4,094)	(2,849)
Net gain on real estate venture transactions	0	1,276	0	1,535
Net income before income taxes	3,790	6,269	11,881	10,881
Income tax (provision) benefit	230	(17)	226	(46)
Net income	4,020	6,252	12,107	10,835
Net income attributable to noncontrolling interests - consolidated real estate ventures	(10)	(13)	(22)	(47)
Net income attributable to Brandywine Operating Partnership	4,010	6,239	12,085	10,788
Nonforfeitable dividends allocated to unvested restricted shareholders	(93)	(93)	(224)	(212)
Net income attributable to Common Shareholders of Brandywine Realty Trust	$ 3,917	$ 6,146	$ 11,861	$ 10,576
Basic income per Common Share (in dollars per share)	$ 0.02	$ 0.03	$ 0.07	$ 0.06
Diluted income per Common Share (in dollars per share)	$ 0.02	$ 0.03	$ 0.07	$ 0.06
Basic weighted average shares outstanding (in shares)	171,499,729	177,125,064	174,275,665	176,983,433
Diluted weighted average shares outstanding (in shares)	171,751,712	177,672,683	174,587,582	177,560,502
Rents
Revenue
Revenue	$ 132,180	$ 137,787	$ 271,384	$ 275,885
Rents | BRANDYWINE OPERATING PARTNERSHIP, L.P.
Revenue
Revenue	132,180	137,787	271,384	275,885
Third party management fees, labor reimbursement and leasing
Revenue
Service and other revenue	4,061	5,148	9,015	9,103
Third party management fees, labor reimbursement and leasing | BRANDYWINE OPERATING PARTNERSHIP, L.P.
Revenue
Service and other revenue	4,061	5,148	9,015	9,103
Other
Revenue
Service and other revenue	596	1,216	1,526	3,059
Other | BRANDYWINE OPERATING PARTNERSHIP, L.P.
Revenue
Service and other revenue	$ 596	$ 1,216	$ 1,526	$ 3,059