Consolidated Balance Sheets - USD ($) $ in Thousands		Jun. 30, 2018	Dec. 31, 2017
Real estate investments:
Operating properties		$ 3,864,629	$ 3,832,348
Accumulated depreciation		(931,194)	(895,091)
Operating real estate investments, net		2,933,435	2,937,257
Construction-in-progress		120,593	121,188
Land held for development	[1]	95,658	98,242
Prepaid leasehold interests in land held for development	[2]	40,177	0
Total real estate investments, net		3,189,863	3,156,687
Assets held for sale, net		4,254	392
Cash and cash equivalents		108,304	202,179
Accounts receivable, net of allowance of $3,850 and $3,467 as of June 30, 2018 and December 31, 2017, respectively		19,530	17,938
Accrued rent receivable, net of allowance of $13,403 and $13,645 as of June 30, 2018 and December 31, 2017, respectively		176,380	169,760
Investment in Real Estate Ventures, equity method		170,361	194,621
Deferred costs, net		96,184	96,695
Intangible assets, net		59,418	64,972
Other assets		167,225	92,204
Total assets		3,991,519	3,995,448
LIABILITIES AND EQUITY
Mortgage notes payable, net		324,289	317,216
Unsecured term loan, net		248,595	248,429
Unsecured senior notes, net		1,365,909	1,365,183
Accounts payable and accrued expenses		106,790	107,074
Distributions payable		32,493	32,456
Deferred income, gains and rent		29,239	42,593
Acquired lease intangibles, net		18,573	20,274
Other liabilities		14,856	15,623
Total liabilities		2,140,744	2,148,848
Commitments and contingencies
Equity:
Common Shares of Brandywine Realty Trust's beneficial interest, $0.01 par value; shares authorized 400,000,000; 178,604,473 and 178,285,236 issued and outstanding as of June 30, 2018 and December 31, 2017, respectively		1,787	1,784
Additional paid-in-capital		3,223,072	3,218,564
Deferred compensation payable in common shares		14,036	12,445
Common shares in grantor trust, 982,305 and 894,736 as of June 30, 2018 and December 31, 2017, respectively		(14,036)	(12,445)
Cumulative earnings		717,515	660,174
Accumulated other comprehensive income		9,221	2,399
Cumulative distributions		(2,118,230)	(2,053,741)
Total Brandywine Realty Trust's equity		1,833,365	1,829,180
Noncontrolling interests		17,410	17,420
Total beneficiaries' equity		1,850,775	1,846,600
Total liabilities and beneficiaries' equity		3,991,519	3,995,448
BRANDYWINE OPERATING PARTNERSHIP, L.P.
Real estate investments:
Operating properties		3,864,629	3,832,348
Accumulated depreciation		(931,194)	(895,091)
Operating real estate investments, net		2,933,435	2,937,257
Construction-in-progress		120,593	121,188
Land held for development		95,658	98,242
Prepaid leasehold interests in land held for development		40,177	0
Total real estate investments, net		3,189,863	3,156,687
Assets held for sale, net		4,254	392
Cash and cash equivalents		108,304	202,179
Accounts receivable, net of allowance of $3,850 and $3,467 as of June 30, 2018 and December 31, 2017, respectively		19,530	17,938
Accrued rent receivable, net of allowance of $13,403 and $13,645 as of June 30, 2018 and December 31, 2017, respectively		176,380	169,760
Investment in Real Estate Ventures, equity method		170,361	194,621
Deferred costs, net		96,184	96,695
Intangible assets, net		59,418	64,972
Other assets		167,225	92,204
Total assets		3,991,519	3,995,448
LIABILITIES AND EQUITY
Mortgage notes payable, net		324,289	317,216
Unsecured term loan, net		248,595	248,429
Unsecured senior notes, net		1,365,909	1,365,183
Accounts payable and accrued expenses		106,790	107,074
Distributions payable		32,493	32,456
Deferred income, gains and rent		29,239	42,593
Acquired lease intangibles, net		18,573	20,274
Other liabilities		14,856	15,623
Total liabilities		2,140,744	2,148,848
Commitments and contingencies
Redeemable limited partnership units at redemption value; 1,479,799 issued and outstanding in as of September 30, 2017 and December 31, 2016		24,772	26,918
Equity:
General Partnership Capital; 178,604,473 and 178,285,236 units issued and outstanding as of June 30, 2018 and December 31, 2017, respectively		1,814,870	1,815,411
Accumulated other comprehensive income		8,935	2,056
Total Brandywine Operating Partnership, L.P.'s equity		1,823,805	1,817,467
Non-controlling interest - consolidated real estate ventures		2,198	2,215
Total partners' equity		1,826,003	1,819,682
Total liabilities and beneficiaries' equity		$ 3,991,519	$ 3,995,448

[1] As of June 30, 2018, the Company categorized 2.7 acres of land held for development, located in the Pennsylvania Suburbs segment, as held for sale in accordance with applicable accounting standards for long lived assets. As of December 31, 2017, the Company categorized 13.1 acres of land held for development, located in the Other segment, as held for sale in accordance with applicable accounting standards for long lived assets. As of June 30, 2018, this caption comprised leasehold interests in prepaid 99-year ground leases at 3025 and 3001-3003 JFK Boulevard, in Philadelphia, Pennsylvania. See Note 3, “Real Estate Investments,” for further information.

[2] As of June 30, 2018, this caption comprised leasehold interests in prepaid 99-year ground leases at 3025 and 3001-3003 JFK Boulevard, in Philadelphia, Pennsylvania. See Note 3, “Real Estate Investments,” for further information