Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Real estate investments:
Operating properties	$ 4,477,857	$ 4,603,692
Accumulated depreciation	(1,057,140)	(1,067,829)
Operating real estate investments, net	3,420,717	3,535,863
Construction-in-progress	231,224	201,360
Land inventory	90,945	90,603
Total real estate investments, net	3,742,886	3,827,826
Cash and cash equivalents	309,083	257,502
Accounts receivable, net	18,566	18,757
Accrued rent receivable, net	134,885	134,051
Assets held for sale, net	111,971	18,295
Investment in Real Estate Ventures, at equity	233,478	225,004
Deferred costs, net	123,482	125,224
Intangible assets, net	93,269	99,403
Mortgage note receivable	0	88,000
Other assets	78,036	65,111
Total assets	4,845,656	4,859,173
LIABILITIES AND BENEFICIARIES’ EQUITY
Mortgage notes payable	650,545	654,590
Unsecured term loans	200,000	200,000
Unsecured senior notes, net of discounts	1,596,992	1,596,718
Accounts payable and accrued expenses	109,865	96,046
Distributions payable	29,038	28,871
Deferred income, gains and rent	55,618	59,452
Below Market Lease, Net	24,513	26,010
Other liabilities	39,578	37,558
Liabilities related to assets held for sale	931	602
Total liabilities	2,707,080	2,699,847
Commitments and contingencies
Brandywine Operating Partnership, L.P.’s equity:
6.90% Series E Preferred Shares, $0.01 par value; issued and outstanding- 4,000,000 in 2015 and 2014	40	40
Common Shares of Brandywine Realty Trust’s beneficial interest, $0.01 par value; shares authorized 400,000,000; 179,745,598 and 179,293,160 issued and outstanding in 2015 and 2014, respectively	1,798	1,793
Additional paid-in capital	3,317,137	3,314,693
Deferred compensation payable in common shares	11,194	6,219
Common shares in grantor trust, 694,691 in 2015 and 384,536 in 2014	(11,194)	(6,219)
Cumulative earnings	538,023	529,487
Accumulated other comprehensive loss	(7,190)	(4,607)
Cumulative distributions	(1,729,517)	(1,700,579)
Total Brandywine Realty Trust’s equity	2,120,291	2,140,827
Non-controlling interests	18,285	18,499
Total beneficiaries' equity	2,138,576	2,159,326
Total liabilities and beneficiaries' equity	4,845,656	4,859,173
BRANDYWINE OPERATING PARTNERSHIP, L.P.
Real estate investments:
Operating properties	4,477,857	4,603,692
Accumulated depreciation	(1,057,140)	(1,067,829)
Operating real estate investments, net	3,420,717	3,535,863
Construction-in-progress	231,224	201,360
Land inventory	90,945	90,603
Total real estate investments, net	3,742,886	3,827,826
Cash and cash equivalents	309,083	257,502
Accounts receivable, net	18,566	18,757
Accrued rent receivable, net	134,885	134,051
Assets held for sale, net	111,971	18,295
Investment in Real Estate Ventures, at equity	233,478	225,004
Deferred costs, net	123,482	125,224
Intangible assets, net	93,269	99,403
Mortgage note receivable	0	88,000
Other assets	78,036	65,111
Total assets	4,845,656	4,859,173
LIABILITIES AND BENEFICIARIES’ EQUITY
Mortgage notes payable	650,545	654,590
Unsecured term loans	200,000	200,000
Unsecured senior notes, net of discounts	1,596,992	1,596,718
Accounts payable and accrued expenses	109,865	96,046
Distributions payable	29,038	28,871
Deferred income, gains and rent	55,618	59,452
Below Market Lease, Net	24,513	26,010
Other liabilities	39,578	37,558
Liabilities related to assets held for sale	931	602
Total liabilities	2,707,080	2,699,847
Commitments and contingencies
Redeemable limited partnership units at redemption value; 1,535,102 issued and outstanding in 2015 and 2014	24,574	24,571
Brandywine Operating Partnership, L.P.’s equity:
6.90% Series E Preferred Shares, $0.01 par value; issued and outstanding- 4,000,000 in 2015 and 2014	96,850	96,850
General Partnership Capital, 179,745,598 and 179,293,160 units issued and outstanding in 2015 and 2014, respectively	2,023,754	2,041,902
Accumulated other comprehensive loss	(7,612)	(5,007)
Total Brandywine Realty Trust’s equity	2,112,992	2,133,745
Non-controlling interests	1,010	1,010
Total beneficiaries' equity	2,114,002	2,134,755
Total liabilities and beneficiaries' equity	$ 4,845,656	$ 4,859,173