Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Net income	$ 31,960	$ 8,811
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	160,355	157,773
Amortization of deferred financing costs	3,377	3,952
Amortization of debt discount/(premium), net	(507)	(455)
Amortization of stock compensation costs	4,312	3,622
Shares used for employee taxes upon vesting of share awards	(2,056)	(1,263)
Recognized hedge activity	0	828
Straight-line rent income	(17,579)	(11,416)
Amortization of acquired above (below) market leases, net	(5,473)	(5,206)
Straight-line ground rent expense	66	66
Provision for doubtful accounts	1,276	1,687
Loss on real estate venture transactions	0	417
Net gain on sale of interests in real estate	(19,692)	(5,882)
Net gain from remeasurement of investment in a real estate venture	(758)	(458)
Loss on early extinguishment of debt	0	2,606
Provision for impairment on assets held for sale/sold	2,508	1,765
Tax credit transaction income	(11,853)	(11,853)
Real Estate Venture loss in excess of distributions	2,579	659
Deferred financing obligation	(906)	(864)
Changes in assets and liabilities:
Accounts receivable	(1,008)	(4,586)
Other assets	(9,511)	(10,317)
Accounts payable and accrued expenses	13,819	9,304
Deferred income, gains and rent	(3,491)	(4,430)
Other liabilities	(2,458)	(1,760)
Net cash provided by operating activities	144,960	133,000
Cash flows from investing activities:
Acquisition of properties	(141,303)	(12,405)
Acquisition of property - 1031 exchange funds applied	(62,812)	0
Proceeds from the sale of properties	152,243	81,625
Sale of property - 1031 exchange funds held in escrow	62,800	0
Proceeds from repayment of mortgage notes receivable	88,000	5,125
Capital expenditures for tenant improvements	(56,095)	(85,698)
Capital expenditures for redevelopments	(38,925)	(10,195)
Capital expenditures for developments	(122,380)	(48,057)
Advances for purchase of tenant assets, net of repayments	290	(212)
Investment in unconsolidated Real Estate Ventures	(62,868)	(16,330)
Deposits for real estate	(451)	0
Escrowed cash	1,004	1,076
Cash distributions from unconsolidated Real Estate Ventures in excess of cumulative equity income	7,401	7,341
Leasing costs paid	(18,295)	(17,018)
Net cash used in investing activities	(191,391)	(94,748)
Cash flows from financing activities:
Repayments of mortgage notes payable	(10,598)	(9,994)
Repayments of unsecured term loans	0	(250,828)
Proceeds from unsecured notes	0	496,459
Net proceeds from issuance of common shares	0	335,016
Repayments of unsecured notes	0	(120,361)
Debt financing costs paid	(3,229)	(3,630)
Proceeds from the exercise of stock options	127	709
Partner contribution to consolidated real estate venture	1,025	0
Repurchase and retirement of common shares	(60,817)	0
Distributions paid to shareholders	(86,255)	(76,081)
Distributions to noncontrolling interest	(692)	(806)
Net cash used in financing activities	(160,439)	370,484
Decrease in cash and cash equivalents	(206,870)	408,736
Cash and cash equivalents at beginning of period	257,502	263,207
Cash and cash equivalents at end of period	50,632	671,943
Supplemental disclosure:
Cash paid for interest, net of capitalized interest during the nine months ended September 30, 2015 and 2014 of $8,764 and $4,466, respectively	80,720	92,196
Supplemental disclosure of non-cash activity:
Change in investments in joint venture related to non-cash disposition of property	0	(5,897)
Change in real estate investments related to non-cash property acquisition	(67,261)	0
Change in investments in joint venture related to non-cash property acquisition	67,261	0
Change in receivable from settlement of acquisitions	0	619
Change in other liabilities from contingent consideration related to a business combination	1,585	0
Change in operating real estate from contingent consideration related to a business combination	(1,585)	0
Change in other liabilities from a deferred payment related to an asset acquisition	2,000	0
Change in operating real estate from a deferred payment related to an asset acquisition	(2,000)	0
Change in capital expenditures financed through accounts payable at period end	(2,472)	4,415
Change in capital expenditures financed through retention payable at period end	6,873	3,479
Change in unfunded tenant allowance	0	(327)
BRANDYWINE OPERATING PARTNERSHIP, L.P.
Net income	31,960	8,811
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	160,355	157,773
Amortization of deferred financing costs	3,377	3,952
Amortization of debt discount/(premium), net	(507)	(455)
Amortization of stock compensation costs	4,312	3,622
Shares used for employee taxes upon vesting of share awards	(2,056)	(1,263)
Recognized hedge activity	0	828
Straight-line rent income	(17,579)	(11,416)
Amortization of acquired above (below) market leases, net	(5,473)	(5,206)
Straight-line ground rent expense	66	66
Provision for doubtful accounts	1,276	1,687
Loss on real estate venture transactions	0	417
Net gain on sale of interests in real estate	(19,692)	(5,882)
Net gain from remeasurement of investment in a real estate venture	(758)	(458)
Loss on early extinguishment of debt	0	2,606
Provision for impairment on assets held for sale/sold	2,508	1,765
Tax credit transaction income	(11,853)	(11,853)
Real Estate Venture loss in excess of distributions	2,579	659
Deferred financing obligation	(906)	(864)
Changes in assets and liabilities:
Accounts receivable	(1,008)	(4,586)
Other assets	(9,511)	(10,317)
Accounts payable and accrued expenses	13,819	9,304
Deferred income, gains and rent	(3,491)	(4,430)
Other liabilities	(2,458)	(1,760)
Net cash provided by operating activities	144,960	133,000
Cash flows from investing activities:
Acquisition of properties	(141,303)	(12,405)
Acquisition of property - 1031 exchange funds applied	(62,812)	0
Proceeds from the sale of properties	152,243	81,625
Sale of property - 1031 exchange funds held in escrow	62,800	0
Proceeds from repayment of mortgage notes receivable	88,000	5,125
Capital expenditures for tenant improvements	(56,095)	(85,698)
Capital expenditures for redevelopments	(38,925)	(10,195)
Capital expenditures for developments	(122,380)	(48,057)
Advances for purchase of tenant assets, net of repayments	290	(212)
Investment in unconsolidated Real Estate Ventures	(62,868)	(16,330)
Deposits for real estate	(451)
Escrowed cash	1,004	1,076
Cash distributions from unconsolidated Real Estate Ventures in excess of cumulative equity income	7,401	7,341
Leasing costs paid	(18,295)	(17,018)
Net cash used in investing activities	(191,391)	(94,748)
Cash flows from financing activities:
Repayments of mortgage notes payable	(10,598)	(9,994)
Repayments of unsecured term loans	0	(250,828)
Proceeds from unsecured notes	0	496,459
Net proceeds from issuance of common shares	0	335,016
Repayments of unsecured notes	0	(120,361)
Debt financing costs paid	(3,229)	(3,630)
Proceeds from the exercise of stock options	127	709
Partner contribution to consolidated real estate venture	1,025	0
Repurchase and retirement of common shares	(60,817)	0
Distributions paid to shareholders	(86,947)	(76,887)
Net cash used in financing activities	(160,439)	370,484
Decrease in cash and cash equivalents	(206,870)	408,736
Cash and cash equivalents at beginning of period	257,502	263,207
Cash and cash equivalents at end of period	50,632	671,943
Supplemental disclosure:
Cash paid for interest, net of capitalized interest during the nine months ended September 30, 2015 and 2014 of $8,764 and $4,466, respectively	80,720	92,196
Supplemental disclosure of non-cash activity:
Change in investments in joint venture related to non-cash disposition of property	0	(5,897)
Change in real estate investments related to non-cash property acquisition	(67,261)	0
Change in investments in joint venture related to non-cash property acquisition	67,261	0
Change in receivable from settlement of acquisitions	0	619
Change in other liabilities from contingent consideration related to a business combination	1,585	0
Change in operating real estate from contingent consideration related to a business combination	(1,585)	0
Change in other liabilities from a deferred payment related to an asset acquisition	2,000	0
Change in operating real estate from a deferred payment related to an asset acquisition	(2,000)	0
Change in capital expenditures financed through accounts payable at period end	(2,472)	4,415
Change in capital expenditures financed through retention payable at period end	6,873	3,479
Change in unfunded tenant allowance	$ 0	$ (327)