Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Real estate investments:
Operating properties	$ 4,006,459	$ 3,951,719
Accumulated depreciation	(973,318)	(885,407)
Right of use asset - operating leases, net	21,656	0
Operating real estate investments, net	3,054,797	3,066,312
Construction-in-progress	180,718	150,263
Land held for development	96,124	86,401
Prepaid leasehold interests in land held for development, net	39,592	39,999
Total real estate investments, net	3,371,231	3,342,975
Assets held for sale, net	7,349	11,599
Cash and cash equivalents	90,499	22,842
Accounts receivable, net of allowance of $284 and $1,653 as of December 31, 2019 and December 31, 2018, respectively	16,363	16,394
Accrued rent receivable, net of allowance of $7,691 and $11,266 as of December 31, 2019 and December 31, 2018, respectively	174,144	165,243
Investment in Real Estate Ventures, equity method	120,294	169,100
Deferred costs, net	95,560	91,075
Intangible assets, net	84,851	131,348
Other assets	115,678	126,400
Total assets	4,075,969	4,076,976
LIABILITIES AND EQUITY
Mortgage notes payable, net	313,812	320,869
Unsecured credit facility	0	92,500
Unsecured term loan, net	248,561	248,042
Unsecured senior notes, net	1,582,045	1,366,635
Accounts payable and accrued expenses	113,347	125,696
Distributions payable	33,815	33,632
Deferred income, gains and rent	35,284	28,293
Intangible liabilities, net	22,263	31,783
Lease Liability - operating leases	22,554	0
Other liabilities	15,985	18,498
Total liabilities	2,387,666	2,265,948
Commitments and contingencies (See Note 19)
Equity:
Common Shares of Brandywine Realty Trust's beneficial interest, $0.01 par value; shares authorized 400,000,000; 176,480,095 and 176,873,324 issued and outstanding as of December 31, 2019 and December 31, 2018, respectively	1,766	1,770
Additional paid-in-capital	3,192,158	3,200,312
Deferred compensation payable in common shares	16,216	14,021
Common shares in grantor trust, 1,105,542 and 977,120 issued and outstanding as of December 31, 2019 and December 31, 2018, respectively	(16,216)	(14,021)
Cumulative earnings	804,556	775,625
Accumulated other comprehensive income	(2,370)	5,029
Total Brandywine Operating Partnership, L.P.'s equity		1,796,316
Cumulative distributions	(2,318,233)	(2,183,909)
Total Brandywine Realty Trust's equity	1,677,877	1,798,827
Noncontrolling interests	10,426	12,201
Total beneficiaries' equity	1,688,303	1,811,028
Total partners' equity		1,798,508
Total liabilities and partners' equity	4,075,969	4,076,976
BRANDYWINE OPERATING PARTNERSHIP, L.P.
Real estate investments:
Operating properties	4,006,459	3,951,719
Accumulated depreciation	(973,318)	(885,407)
Right of use asset - operating leases, net	21,656	0
Operating real estate investments, net	3,054,797	3,066,312
Construction-in-progress	180,718	150,263
Land held for development	96,124	86,401
Prepaid leasehold interests in land held for development, net	39,592	39,999
Total real estate investments, net	3,371,231	3,342,975
Assets held for sale, net	7,349	11,599
Cash and cash equivalents	90,499	22,842
Accounts receivable, net of allowance of $284 and $1,653 as of December 31, 2019 and December 31, 2018, respectively	16,363	16,394
Accrued rent receivable, net of allowance of $7,691 and $11,266 as of December 31, 2019 and December 31, 2018, respectively	174,144	165,243
Investment in Real Estate Ventures, equity method	120,294	169,100
Deferred costs, net	95,560	91,075
Intangible assets, net	84,851	131,348
Other assets	115,678	126,400
Total assets	4,075,969	4,076,976
LIABILITIES AND EQUITY
Mortgage notes payable, net	313,812	320,869
Unsecured credit facility	0	92,500
Unsecured term loan, net	248,561	248,042
Unsecured senior notes, net	1,582,045	1,366,635
Accounts payable and accrued expenses	113,347	125,696
Distributions payable	33,815	33,632
Deferred income, gains and rent	35,284	28,293
Intangible liabilities, net	22,263	31,783
Lease Liability - operating leases	22,554	0
Other liabilities	15,985	18,498
Total liabilities	2,387,666	2,265,948
Commitments and contingencies (See Note 19)
Redeemable limited partnership units at redemption value; 981,634 and 982,871 issued and outstanding as of December 31, 2019 and December 31, 2018, respectively	15,388	12,520
Equity:
General Partnership Capital; 176,480,095 and 176,873,324 units issued and outstanding as of December 31, 2019 and December 31, 2018, respectively	1,674,539	1,791,591
Accumulated other comprehensive income	(2,715)	4,725
Total Brandywine Operating Partnership, L.P.'s equity	1,671,824	1,796,316
Noncontrolling interest - consolidated real estate ventures	1,091	2,192
Total partners' equity	1,672,915	1,798,508
Total liabilities and partners' equity	$ 4,075,969	$ 4,076,976