Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities:
Net income	$ 12,107	$ 10,835
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	101,781	103,111
Amortization of deferred financing costs	1,480	1,332
Amortization of debt discount/(premium), net	(788)	351
Amortization of stock compensation costs	4,462	5,135
Straight-line rent income	(4,416)	(6,425)
Amortization of acquired above (below) market leases, net	(2,617)	(3,494)
Ground rent expense	729	737
Provision for doubtful accounts	345	(24)
Net gain on real estate venture transactions	0	(1,535)
Net gain on sale of interests in real estate	(2,787)	(1,251)
Loss from Real Estate Ventures, net of distributions	4,092	3,857
Income tax provision (benefit)	(226)	46
Changes in assets and liabilities:
Accounts receivable	(4,349)	(665)
Other assets	(3,315)	(7,714)
Accounts payable and accrued expenses	(4,215)	(12,496)
Deferred income, gains and rent	(5,418)	(5,033)
Other liabilities	3,455	(1,311)
Net cash provided by operating activities	100,320	85,456
Cash flows from investing activities:
Acquisition of properties	(11,432)	0
Proceeds from the sale of properties	21,250	5,523
Proceeds from real estate venture sales	0	259
Proceeds from repayment of mortgage notes receivable	0	3,341
Capital expenditures for tenant improvements	(27,834)	(36,046)
Capital expenditures for redevelopments	(14,686)	(18,436)
Capital expenditures for developments	(33,566)	(39,155)
Advances for the purchase of tenant assets, net of repayments	1,563	(627)
Investment in unconsolidated Real Estate Ventures	(199)	(182)
Deposits for real estate	0	2,053
Capital distributions from Real Estate Ventures	3,575	33,817
Leasing costs paid	(13,998)	(9,440)
Net cash used in investing activities	(75,327)	(58,893)
Cash flows from financing activities:
Repayments of mortgage notes payable	(3,909)	(3,761)
Proceeds from credit facility borrowings	132,500	260,500
Repayments of credit facility borrowings	(71,500)	(189,500)
Proceeds from the exercise of stock options	47	800
Shares used for employee taxes upon vesting of share awards	(1,346)	(1,554)
Partner contributions to consolidated real estate venture	0	25
Repurchase and retirement of common shares	(60,000)	(17,282)
Distributions paid to shareholders	(66,107)	(66,649)
Distributions to noncontrolling interest	(374)	(373)
Net cash used in financing activities	(70,689)	(17,794)
Increase/(Decrease) in cash and cash equivalents and restricted cash	(45,696)	8,769
Cash and cash equivalents and restricted cash at beginning of year	91,170	23,211
Cash and cash equivalents and restricted cash at end of period	45,474	31,980
Reconciliation of cash and cash equivalents and restricted cash:
Cash and cash equivalents, beginning of period	90,499	22,842
Restricted cash, beginning of period	671	369
Cash and cash equivalents and restricted cash at beginning of year	91,170	23,211
Cash and cash equivalents, end of period	44,819	31,573
Restricted cash, end of period	655	407
Cash and cash equivalents and restricted cash at end of period	45,474	31,980
Supplemental disclosure:
Cash paid for interest, net of capitalized interest during the six months ended June 30, 2020 and 2019 of $2,341 and $1,465, respectively	42,994	41,842
Cash paid for income taxes	483	938
Supplemental disclosure of non-cash activity:
Dividends and distributions declared but not paid	32,747	34,113
Change in investment in real estate ventures as a result of dispositions	0	1,276
Change in capital expenditures financed through accounts payable at period end	5,995	(15,351)
Change in capital expenditures financed through retention payable at period end	222	(3,643)
BRANDYWINE OPERATING PARTNERSHIP, L.P.
Cash flows from operating activities:
Net income	12,107	10,835
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	101,781	103,111
Amortization of deferred financing costs	1,480	1,332
Amortization of debt discount/(premium), net	(788)	351
Amortization of stock compensation costs	4,462	5,135
Straight-line rent income	(4,416)	(6,425)
Amortization of acquired above (below) market leases, net	(2,617)	(3,494)
Ground rent expense	729	737
Provision for doubtful accounts	345	(24)
Net gain on real estate venture transactions	0	(1,535)
Net gain on sale of interests in real estate	(2,787)	(1,251)
Loss from Real Estate Ventures, net of distributions	4,092	3,857
Income tax provision (benefit)	(226)	46
Changes in assets and liabilities:
Accounts receivable	(4,349)	(665)
Other assets	(3,315)	(7,714)
Accounts payable and accrued expenses	(4,215)	(12,496)
Deferred income, gains and rent	(5,418)	(5,033)
Other liabilities	3,455	(1,311)
Net cash provided by operating activities	100,320	85,456
Cash flows from investing activities:
Acquisition of properties	(11,432)	0
Proceeds from the sale of properties	21,250	5,523
Proceeds from real estate venture sales	0	259
Proceeds from repayment of mortgage notes receivable	0	3,341
Capital expenditures for tenant improvements	(27,834)	(36,046)
Capital expenditures for redevelopments	(14,686)	(18,436)
Capital expenditures for developments	(33,566)	(39,155)
Advances for the purchase of tenant assets, net of repayments	1,563	(627)
Investment in unconsolidated Real Estate Ventures	(199)	(182)
Deposits for real estate	0	2,053
Capital distributions from Real Estate Ventures	3,575	33,817
Leasing costs paid	(13,998)	(9,440)
Net cash used in investing activities	(75,327)	(58,893)
Cash flows from financing activities:
Repayments of mortgage notes payable	(3,909)	(3,761)
Proceeds from credit facility borrowings	132,500	260,500
Repayments of credit facility borrowings	(71,500)	(189,500)
Proceeds from the exercise of stock options	47	800
Shares used for employee taxes upon vesting of share awards	(1,346)	(1,554)
Partner contributions to consolidated real estate venture	0	25
Repurchase and retirement of common shares	(60,000)	(17,282)
Distributions paid to shareholders	(66,481)	(67,022)
Net cash used in financing activities	(70,689)	(17,794)
Increase/(Decrease) in cash and cash equivalents and restricted cash	(45,696)	8,769
Cash and cash equivalents and restricted cash at beginning of year	91,170	23,211
Cash and cash equivalents and restricted cash at end of period	45,474	31,980
Reconciliation of cash and cash equivalents and restricted cash:
Cash and cash equivalents, beginning of period	90,499	22,842
Restricted cash, beginning of period	671	369
Cash and cash equivalents and restricted cash at beginning of year	91,170	23,211
Cash and cash equivalents, end of period	44,819	31,573
Restricted cash, end of period	655	407
Cash and cash equivalents and restricted cash at end of period	45,474	31,980
Supplemental disclosure:
Cash paid for interest, net of capitalized interest during the six months ended June 30, 2020 and 2019 of $2,341 and $1,465, respectively	42,994	41,842
Cash paid for income taxes	483	938
Supplemental disclosure of non-cash activity:
Dividends and distributions declared but not paid	32,747	34,113
Change in investment in real estate ventures as a result of dispositions	0	1,276
Change in capital expenditures financed through accounts payable at period end	5,995	(15,351)
Change in capital expenditures financed through retention payable at period end	$ 222	$ (3,643)