Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Real estate investments:
Operating properties	$ 3,995,228	$ 3,951,719
Accumulated depreciation	(944,994)	(885,407)
Right of use asset - operating leases, net	21,828	0
Operating real estate investments, net	3,072,062	3,066,312
Construction-in-progress	151,232	150,263
Land held for development	92,189	86,401
Prepaid leasehold interests in land held for development, net	39,694	39,999
Total real estate investments, net	3,355,177	3,342,975
Assets held for sale, net	7,349	11,599
Cash and cash equivalents	29,925	22,842
Accounts receivable, net of allowance of $284 and $1,653 as of September 30, 2019 and December 31, 2018, respectively	13,872	16,394
Accrued rent receivable, net of allowance of $11,009 and $11,266 as of September 30, 2019 and December 31, 2018, respectively	168,960	165,243
Investment in Real Estate Ventures	127,759	169,100
Deferred costs, net	96,202	91,075
Intangible assets, net	95,798	131,348
Other assets	125,390	126,400
Total assets	4,020,432	4,076,976
LIABILITIES AND EQUITY
Mortgage notes payable, net	315,603	320,869
Unsecured credit facility	146,500	92,500
Unsecured term loan, net	248,430	248,042
Unsecured senior notes, net	1,367,722	1,366,635
Accounts payable and accrued expenses	119,790	125,696
Distributions payable	33,759	33,632
Deferred income, gains and rent	22,707	28,293
Acquired lease intangibles, net	24,050	31,783
Lease liability - operating leases	22,503	0
Other liabilities	16,931	18,498
Total liabilities	2,317,995	2,265,948
Commitments and contingencies (See Note 13)
Equity:
Common Shares of Brandywine Realty Trust's beneficial interest, $0.01 par value; shares authorized 400,000,000; 176,194,918 and 176,873,324 issued and outstanding as of September 30, 2019 and December 31, 2018, respectively	1,763	1,770
Additional paid-in-capital	3,189,350	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 September 30, 2019 and December 31, 2018, respectively	(16,216)	(14,021)
Cumulative earnings	787,789	775,625
Accumulated other comprehensive income	(3,550)	5,029
Total Brandywine Operating Partnership, L.P.'s equity		1,796,316
Cumulative distributions	(2,284,610)	(2,183,909)
Total Brandywine Realty Trust's equity	1,690,742	1,798,827
Noncontrolling interests	11,695	12,201
Total beneficiaries' equity	1,702,437	1,811,028
Total partners' equity		1,798,508
Total liabilities and beneficiaries' equity	4,020,432	4,076,976
BRANDYWINE OPERATING PARTNERSHIP, L.P.
Real estate investments:
Operating properties	3,995,228	3,951,719
Accumulated depreciation	(944,994)	(885,407)
Right of use asset - operating leases, net	21,828	0
Operating real estate investments, net	3,072,062	3,066,312
Construction-in-progress	151,232	150,263
Land held for development	92,189	86,401
Prepaid leasehold interests in land held for development, net	39,694	39,999
Total real estate investments, net	3,355,177	3,342,975
Assets held for sale, net	7,349	11,599
Cash and cash equivalents	29,925	22,842
Accounts receivable, net of allowance of $284 and $1,653 as of September 30, 2019 and December 31, 2018, respectively	13,872	16,394
Accrued rent receivable, net of allowance of $11,009 and $11,266 as of September 30, 2019 and December 31, 2018, respectively	168,960	165,243
Investment in Real Estate Ventures	127,759	169,100
Deferred costs, net	96,202	91,075
Intangible assets, net	95,798	131,348
Other assets	125,390	126,400
Total assets	4,020,432	4,076,976
LIABILITIES AND EQUITY
Mortgage notes payable, net	315,603	320,869
Unsecured credit facility	146,500	92,500
Unsecured term loan, net	248,430	248,042
Unsecured senior notes, net	1,367,722	1,366,635
Accounts payable and accrued expenses	119,790	125,696
Distributions payable	33,759	33,632
Deferred income, gains and rent	22,707	28,293
Acquired lease intangibles, net	24,050	31,783
Lease liability - operating leases	22,503	0
Other liabilities	16,931	18,498
Total liabilities	2,317,995	2,265,948
Commitments and contingencies (See Note 13)
Redeemable limited partnership units at redemption value; 981,626 and 982,871 issued and outstanding as of September 30, 2019 and December 31, 2018, respectively	14,728	12,520
Equity:
General Partnership Capital; 176,194,918 and 176,873,324 units issued and outstanding as of September 30, 2019 and December 31, 2018, respectively	1,689,334	1,791,591
Accumulated other comprehensive income	(3,902)	4,725
Total Brandywine Operating Partnership, L.P.'s equity	1,685,432	1,796,316
Noncontrolling interest - consolidated real estate ventures	2,277	2,192
Total partners' equity	1,687,709	1,798,508
Total liabilities and beneficiaries' equity	$ 4,020,432	$ 4,076,976