CONSOLIDATED BALANCE SHEETS - BRANDYWINE OPERATING PARTNERSHIP, L.P. - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Real estate investments:
Operating properties	$ 3,632,495	$ 3,617,240
Accumulated depreciation	(1,096,199)	(1,063,060)
Right of use asset - operating leases, net	19,505	19,664
Operating real estate investments, net	2,555,801	2,573,844
Construction-in-progress	236,040	218,869
Land held for development	67,923	76,499
Prepaid leasehold interests in land held for development, net	27,762	35,576
Total real estate investments, net	2,887,526	2,904,788
Cash and cash equivalents	96,945	17,551
Restricted cash and escrows	16,126	0
Accounts receivable	13,446	11,003
Accrued rent receivable, net of allowance of $3,828 and $3,947 as of March 31, 2023 and December 31, 2022, respectively	182,523	179,771
Investment in unconsolidated real estate ventures	583,775	567,635
Deferred costs, net	95,037	96,639
Intangible assets, net	16,394	18,451
Other assets	95,339	78,667
Total assets	3,987,111	3,874,505
LIABILITIES AND BENEFICIARIES' EQUITY
Mortgage notes payable, net	241,231	0
Unsecured credit facility	0	88,500
Unsecured term loan, net	317,848	248,168
Unsecured senior notes, net	1,574,221	1,628,370
Accounts payable and accrued expenses	114,370	132,440
Distributions payable	32,823	32,792
Deferred income, gains and rent	24,039	25,082
Intangible liabilities, net	9,921	10,322
Lease liability - operating leases	23,218	23,166
Other liabilities	56,222	52,331
Total liabilities	2,393,893	2,241,171
Commitments and contingencies (See Note 15)
Brandywine Operating Partnership, L.P.'s equity:
Accumulated other comprehensive income (loss)	(1,410)	3,897
Total liabilities and beneficiaries' equity	3,987,111	3,874,505
BRANDYWINE OPERATING PARTNERSHIP, L.P.
Real estate investments:
Operating properties	3,632,495	3,617,240
Accumulated depreciation	(1,096,199)	(1,063,060)
Right of use asset - operating leases, net	19,505	19,664
Operating real estate investments, net	2,555,801	2,573,844
Construction-in-progress	236,040	218,869
Land held for development	67,923	76,499
Prepaid leasehold interests in land held for development, net	27,762	35,576
Total real estate investments, net	2,887,526	2,904,788
Cash and cash equivalents	96,945	17,551
Accounts receivable	13,446	11,003
Accrued rent receivable, net of allowance of $3,828 and $3,947 as of March 31, 2023 and December 31, 2022, respectively	182,523	179,771
Investment in unconsolidated real estate ventures	583,775	567,635
Deferred costs, net	95,037	96,639
Intangible assets, net	16,394	18,451
Other assets	95,339	78,667
Total assets	3,987,111	3,874,505
LIABILITIES AND BENEFICIARIES' EQUITY
Mortgage notes payable, net	241,231	0
Unsecured credit facility	0	88,500
Unsecured term loan, net	317,848	248,168
Unsecured senior notes, net	1,574,221	1,628,370
Accounts payable and accrued expenses	114,370	132,440
Distributions payable	32,823	32,792
Deferred income, gains and rent	24,039	25,082
Intangible liabilities, net	9,921	10,322
Lease liability - operating leases	23,218	23,166
Other liabilities	56,222	52,331
Total liabilities	2,393,893	2,241,171
Commitments and contingencies (See Note 15)
Redeemable limited partnership units at redemption value; 516,467 and 516,467 issued and outstanding as of March 31, 2023 and December 31, 2022, respectively	2,318	3,195
Brandywine Operating Partnership, L.P.'s equity:
General Partnership Capital; 171,727,703 and 171,569,807 units issued and outstanding as of March 31, 2023 and December 31, 2022, respectively	1,589,791	1,623,738
Accumulated other comprehensive income (loss)	(1,722)	3,569
Total Brandywine Operating Partnership, L.P.'s equity	1,588,069	1,627,307
Noncontrolling interest - consolidated real estate ventures	2,831	2,832
Total partners' equity	1,590,900	1,630,139
Total liabilities and beneficiaries' equity	$ 3,987,111	$ 3,874,505