Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Real estate investments:
Operating properties	$ 3,715,765	$ 4,006,459
Accumulated depreciation	(980,664)	(973,318)
Right of use asset - operating leases, net	21,145	21,656
Operating real estate investments, net	2,756,246	3,054,797
Construction-in-progress	186,853	180,718
Land held for development	115,474	96,124
Prepaid leasehold interests in land held for development, net	39,287	39,592
Total real estate investments, net	3,097,860	3,371,231
Assets held for sale, net	7,349	7,349
Cash and cash equivalents	62,256	90,499
Accounts receivable, net of allowance of $0 and $284 as of September 30, 2020 and December 31, 2019, respectively	20,433	16,363
Accrued rent receivable, net of allowance of $6,111 and $7,691 as of September 30, 2020 and December 31, 2019, respectively	159,952	174,144
Investment in Real Estate Ventures	377,486	120,294
Deferred costs, net	90,601	95,560
Intangible assets, net	50,715	84,851
Other assets	124,408	115,678
Total assets	3,991,060	4,075,969
LIABILITIES AND EQUITY
Mortgage notes payable, net	88,913	313,812
Unsecured term loan, net	248,953	248,561
Unsecured senior notes, net	1,581,645	1,582,045
Accounts payable and accrued expenses	117,248	113,347
Distributions payable	32,705	33,815
Deferred income, gains and rent	25,070	35,284
Intangible liabilities, net	17,500	22,263
Lease liability - operating leases	22,707	22,554
Other liabilities	40,537	15,985
Total liabilities	2,175,278	2,387,666
Commitments and contingencies (See Note 14)
Equity:
Common Shares of Brandywine Realty Trust's beneficial interest, $0.01 par value; shares authorized 400,000,000; 170,572,964 and 176,480,095 issued and outstanding as of September 30, 2020 and December 31, 2019, respectively	1,707	1,766
Additional paid-in-capital	3,136,851	3,192,158
Deferred compensation payable in common shares	17,516	16,216
Common shares in grantor trust, 1,160,494 and 1,105,542 issued and outstanding as of September 30, 2020 and December 31, 2019, respectively	(17,516)	(16,216)
Cumulative earnings	1,091,095	804,556
Accumulated other comprehensive loss	(8,749)	(2,370)
Cumulative distributions	(2,415,736)	(2,318,233)
Total Brandywine Realty Trust's equity	1,805,168	1,677,877
Noncontrolling interests	10,614	10,426
Total beneficiaries' equity	1,815,782	1,688,303
Total liabilities and beneficiaries' equity	3,991,060	4,075,969
BRANDYWINE OPERATING PARTNERSHIP, L.P.
Real estate investments:
Operating properties	3,715,765	4,006,459
Accumulated depreciation	(980,664)	(973,318)
Right of use asset - operating leases, net	21,145	21,656
Operating real estate investments, net	2,756,246	3,054,797
Construction-in-progress	186,853	180,718
Land held for development	115,474	96,124
Prepaid leasehold interests in land held for development, net	39,287	39,592
Total real estate investments, net	3,097,860	3,371,231
Assets held for sale, net	7,349	7,349
Cash and cash equivalents	62,256	90,499
Accounts receivable, net of allowance of $0 and $284 as of September 30, 2020 and December 31, 2019, respectively	20,433	16,363
Accrued rent receivable, net of allowance of $6,111 and $7,691 as of September 30, 2020 and December 31, 2019, respectively	159,952	174,144
Investment in Real Estate Ventures	377,486	120,294
Deferred costs, net	90,601	95,560
Intangible assets, net	50,715	84,851
Other assets	124,408	115,678
Total assets	3,991,060	4,075,969
LIABILITIES AND EQUITY
Mortgage notes payable, net	88,913	313,812
Unsecured term loan, net	248,953	248,561
Unsecured senior notes, net	1,581,645	1,582,045
Accounts payable and accrued expenses	117,248	113,347
Distributions payable	32,705	33,815
Deferred income, gains and rent	25,070	35,284
Intangible liabilities, net	17,500	22,263
Lease liability - operating leases	22,707	22,554
Other liabilities	40,537	15,985
Total liabilities	2,175,278	2,387,666
Commitments and contingencies (See Note 14)
Redeemable limited partnership units at redemption value; 981,634 issued and outstanding as of September 30, 2020 and December 31, 2019, respectively	9,950	15,388
Equity:
General Partnership Capital; 170,572,964 and 176,480,095 units issued and outstanding as of September 30, 2020 and December 31, 2019, respectively	1,814,890	1,674,539
Accumulated other comprehensive loss	(9,130)	(2,715)
Total Brandywine Operating Partnership, L.P.'s equity	1,805,760	1,671,824
Noncontrolling interest - consolidated real estate ventures	72	1,091
Total partners' equity	1,805,832	1,672,915
Total liabilities and beneficiaries' equity	$ 3,991,060	$ 4,075,969