CONSOLIDATED STATEMENTS OF OPERATIONS - BRANDYWINE OPERATING PARTNERSHIP, L.P. - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Revenue
Total revenue	$ 129,227	$ 127,505
Operating expenses
Property operating expenses	33,594	31,548
Real estate taxes	14,602	13,813
Third party management expenses	2,639	2,557
Depreciation and amortization	45,600	43,782
General and administrative expenses	9,482	10,000
Total operating expenses	105,917	101,700
Gain on sale of real estate
Net gain on sale of undepreciated real estate	781	897
Total gain on sale of real estate	781	897
Operating income	24,091	26,702
Other income (expense):
Interest and investment income	505	440
Interest expense	(22,653)	(15,742)
Interest expense - amortization of deferred financing costs	(1,027)	(709)
Equity in loss of unconsolidated real estate ventures	(6,167)	(4,563)
Net income (loss) before income taxes	(5,251)	6,128
Income tax provision	(25)	(27)
Net income (loss)	(5,276)	6,101
Nonforfeitable dividends allocated to unvested restricted shareholders	(70)	(148)
Net income (loss) attributable to common shareholders, basic	$ (5,329)	$ 5,945
Basic income (loss) per Common Partnership Units (in dollars per share)	$ (0.03)	$ 0.03
Diluted income (loss) per Common Partnership Units (in dollars per share)	$ (0.03)	$ 0.03
Basic weighted average common partnership units outstanding (in shares)	171,673,167	171,294,949
Diluted weighted average common partnership units outstanding (in shares)	171,673,167	172,888,994
BRANDYWINE OPERATING PARTNERSHIP, L.P.
Revenue
Total revenue	$ 129,227	$ 127,505
Operating expenses
Property operating expenses	33,594	31,548
Real estate taxes	14,602	13,813
Third party management expenses	2,639	2,557
Depreciation and amortization	45,600	43,782
General and administrative expenses	9,482	10,000
Total operating expenses	105,917	101,700
Gain on sale of real estate
Net gain on sale of undepreciated real estate	781	897
Total gain on sale of real estate	781	897
Operating income	24,091	26,702
Other income (expense):
Interest and investment income	505	440
Interest expense	(22,653)	(15,742)
Interest expense - amortization of deferred financing costs	(1,027)	(709)
Equity in loss of unconsolidated real estate ventures	(6,167)	(4,563)
Net income (loss) before income taxes	(5,251)	6,128
Income tax provision	(25)	(27)
Net income (loss)	(5,276)	6,101
Net loss attributable to noncontrolling interests - consolidated real estate ventures	1	2
Net income (loss) attributable to Brandywine Operating Partnership	(5,275)	6,103
Nonforfeitable dividends allocated to unvested restricted shareholders	(70)	(148)
Net income (loss) attributable to common shareholders, basic	$ (5,345)	$ 5,955
Basic income (loss) per Common Partnership Units (in dollars per share)	$ (0.03)	$ 0.03
Diluted income (loss) per Common Partnership Units (in dollars per share)	$ (0.03)	$ 0.03
Basic weighted average common partnership units outstanding (in shares)	172,189,634	171,927,588
Diluted weighted average common partnership units outstanding (in shares)	172,189,634	173,521,633
Rents
Revenue
Total revenue	$ 120,848	$ 115,901
Rents | BRANDYWINE OPERATING PARTNERSHIP, L.P.
Revenue
Total revenue	120,848	115,901
Third party management fees, labor reimbursement and leasing
Revenue
Total revenue	6,002	5,108
Third party management fees, labor reimbursement and leasing | BRANDYWINE OPERATING PARTNERSHIP, L.P.
Revenue
Total revenue	6,002	5,108
Other
Revenue
Total revenue	2,377	6,496
Other | BRANDYWINE OPERATING PARTNERSHIP, L.P.
Revenue
Total revenue	$ 2,377	$ 6,496