CONSOLIDATED STATEMENTS OF OPERATIONS - BRANDYWINE OPERATING PARTNERSHIP, L.P. - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenue
Total revenue	$ 125,569	$ 120,418	$ 377,116	$ 361,289
Operating expenses
Property operating expenses	32,624	30,304	97,283	88,503
Real estate taxes	12,313	13,421	39,872	42,784
Third party management expenses	2,549	3,327	7,898	9,866
Depreciation and amortization	45,134	48,175	132,875	131,303
General and administrative expenses	7,564	7,076	25,892	22,016
Total operating expenses	100,184	102,303	303,820	294,472
Gain on sale of real estate
Net gain on disposition of real estate	8,669	0	8,813	142
Net gain on sale of undepreciated real estate	2,983	910	8,007	2,903
Total gain on sale of real estate	11,652	910	16,820	3,045
Operating income	37,037	19,025	90,116	69,862
Other income (expense):
Interest and investment income	498	4,494	1,387	7,845
Interest expense	(17,061)	(15,190)	(49,144)	(46,973)
Interest expense - amortization of deferred financing costs	(745)	(709)	(2,259)	(2,127)
Equity in loss of unconsolidated real estate ventures	(6,260)	(6,634)	(15,804)	(20,798)
Net income before income taxes	13,469	986	24,296	7,809
Income tax (provision) benefit	9	(12)	(66)	(46)
Net income	13,478	974	24,230	7,763
Nonforfeitable dividends allocated to unvested restricted shareholders	(105)	(91)	(351)	(331)
Net income attributable to Common Partnership Unitholders of Brandywine Operating Partnership, L.P.	$ 13,336	$ 876	$ 23,820	$ 7,390
Basic income per Common Share (in dollars per share)	$ 0.08	$ 0.01	$ 0.14	$ 0.04
Diluted income per Common Share (in dollars per share)	$ 0.08	$ 0.01	$ 0.14	$ 0.04
Basic weighted average common partnership units outstanding (in shares)	171,569,807	170,907,018	171,464,936	170,794,585
Diluted weighted average common partnership units outstanding (in shares)	172,152,256	172,237,194	172,435,153	172,077,950
BRANDYWINE OPERATING PARTNERSHIP, L.P.
Revenue
Total revenue	$ 125,569	$ 120,418	$ 377,116	$ 361,289
Operating expenses
Property operating expenses	32,624	30,304	97,283	88,503
Real estate taxes	12,313	13,421	39,872	42,784
Third party management expenses	2,549	3,327	7,898	9,866
Depreciation and amortization	45,134	48,175	132,875	131,303
General and administrative expenses	7,564	7,076	25,892	22,016
Total operating expenses	100,184	102,303	303,820	294,472
Gain on sale of real estate
Net gain on disposition of real estate	8,669	0	8,813	142
Net gain on sale of undepreciated real estate	2,983	910	8,007	2,903
Total gain on sale of real estate	11,652	910	16,820	3,045
Operating income	37,037	19,025	90,116	69,862
Other income (expense):
Interest and investment income	498	4,494	1,387	7,845
Interest expense	(17,061)	(15,190)	(49,144)	(46,973)
Interest expense - amortization of deferred financing costs	(745)	(709)	(2,259)	(2,127)
Equity in loss of unconsolidated real estate ventures	(6,260)	(6,634)	(15,804)	(20,798)
Net income before income taxes	13,469	986	24,296	7,809
Income tax (provision) benefit	9	(12)	(66)	(46)
Net income	13,478	974	24,230	7,763
Net loss attributable to noncontrolling interests - consolidated real estate ventures	1	2	5	4
Net income attributable to Brandywine Operating Partnership	13,479	976	24,235	7,767
Nonforfeitable dividends allocated to unvested restricted shareholders	(105)	(91)	(351)	(331)
Net income attributable to Common Partnership Unitholders of Brandywine Operating Partnership, L.P.	$ 13,374	$ 885	$ 23,884	$ 7,436
Basic income per Common Share (in dollars per share)	$ 0.08	$ 0.01	$ 0.14	$ 0.04
Diluted income per Common Share (in dollars per share)	$ 0.08	$ 0.01	$ 0.14	$ 0.04
Basic weighted average common partnership units outstanding (in shares)	172,086,274	171,731,001	172,019,701	171,710,387
Diluted weighted average common partnership units outstanding (in shares)	172,668,723	173,061,177	172,989,918	172,993,752
Rents
Revenue
Total revenue	$ 117,481	$ 112,159	$ 350,279	$ 336,878
Rents | BRANDYWINE OPERATING PARTNERSHIP, L.P.
Revenue
Total revenue	117,481	112,159	350,279	336,878
Third party management fees, labor reimbursement and leasing
Revenue
Total revenue	6,872	6,500	17,904	19,778
Third party management fees, labor reimbursement and leasing | BRANDYWINE OPERATING PARTNERSHIP, L.P.
Revenue
Total revenue	6,872	6,500	17,904	19,778
Other
Revenue
Total revenue	1,216	1,759	8,933	4,633
Other | BRANDYWINE OPERATING PARTNERSHIP, L.P.
Revenue
Total revenue	$ 1,216	$ 1,759	$ 8,933	$ 4,633