Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net income	$ 19,660	$ 44,923
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of buildings and tenant improvements	71,582	62,423
Amortization of deferred leasing and other costs	13,777	13,569
Amortization of deferred financing costs	2,219	1,562
Straight-line rental income and expense, net	(1,703)	(5,704)
Impairment charges	5,626	0
Loss on debt extinguishment	17,806	13
Gain on involuntary conversion	0	(2,259)
Gains on land and depreciated property sales	(9,120)	(742)
Third-party construction contracts, net	(780)	11,700
Other accrued revenues and expenses, net	(6,738)	(10,893)
Equity in earnings in excess of operating distributions received from unconsolidated joint ventures	2,221	(33)
Net cash provided by operating activities	114,550	114,559
Cash flows from investing activities:
Development of real estate investments	(170,900)	(85,772)
Acquisition of buildings and related intangible assets	0	76,081
Acquisition of land and other real estate assets	(87,023)	(53,551)
Second generation tenant improvements, leasing costs and building improvements	(8,105)	(10,245)
Other deferred leasing costs	(12,341)	(1,712)
Other assets	(15,040)	(9,381)
Proceeds from the repayments of notes receivable from property sales	110,000	35,000
Proceeds from land and depreciated property sales, net	27,081	1,910
Capital contributions and advances to unconsolidated joint ventures	(2,353)	(6,474)
Net cash used for investing activities	(158,681)	(206,306)
Cash flows from financing activities:
Proceeds from issuance of common shares, net	5,465	4,492
Proceeds from unsecured debt	316,371	0
Payments on unsecured debt	(316,655)	0
Proceeds from secured notes payable	18,400	0
Payments on secured indebtedness including principal amortization	(876)	(42,665)
Borrowings on line of credit, net	200,000	210,000
Distributions to common shareholders/unitholders	(86,562)	(77,237)
Distributions to noncontrolling Interest	(783)	(505)
Tax payments on stock-based compensation awards	(4,051)	(5,467)
Change in book cash overdrafts	(14,444)	9,700
Other Financing Activities	289	(9,920)
Deferred financing costs	(3,971)	0
Net cash provided by financing activities	113,183	88,398
Net increase (decrease) in cash, cash equivalents and restricted cash	69,052	(3,349)
Cash, cash equivalents and restricted cash at beginning of period	121,431	25,517
Cash, cash equivalents and restricted cash at end of period	190,483	22,168
Noncash activities:
Liabilities and right-of-use assets - operating leases	1,132	38,792
Duke Realty Limited Partnership [Member]
Cash flows from operating activities:
Net income	19,660	44,923
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of buildings and tenant improvements	71,582	62,423
Amortization of deferred leasing and other costs	13,777	13,569
Amortization of deferred financing costs	2,219	1,562
Straight-line rental income and expense, net	(1,703)	(5,704)
Impairment charges	5,626	0
Loss on debt extinguishment	17,806	13
Gain on involuntary conversion	0	(2,259)
Gains on land and depreciated property sales	(9,120)	(742)
Third-party construction contracts, net	(780)	11,700
Other accrued revenues and expenses, net	(6,738)	(10,893)
Equity in earnings in excess of operating distributions received from unconsolidated joint ventures	2,221	(33)
Net cash provided by operating activities	114,550	114,559
Cash flows from investing activities:
Development of real estate investments	(170,900)	(85,772)
Acquisition of buildings and related intangible assets	0	76,081
Acquisition of land and other real estate assets	(87,023)	(53,551)
Second generation tenant improvements, leasing costs and building improvements	(8,105)	(10,245)
Other deferred leasing costs	(12,341)	(1,712)
Other assets	(15,040)	(9,381)
Proceeds from the repayments of notes receivable from property sales	110,000	35,000
Proceeds from land and depreciated property sales, net	27,081	1,910
Capital contributions and advances to unconsolidated joint ventures	(2,353)	(6,474)
Net cash used for investing activities	(158,681)	(206,306)
Cash flows from financing activities:
Contributions from the General Partner	5,465	4,492
Proceeds from unsecured debt	316,371	0
Payments on unsecured debt	(316,655)	0
Proceeds from secured notes payable	18,400	0
Payments on secured indebtedness including principal amortization	(876)	(42,665)
Borrowings on line of credit, net	200,000	210,000
Distributions to common shareholders/unitholders	(87,345)	(77,915)
Distributions to noncontrolling Interest	0	173
Tax payments on stock-based compensation awards	(4,051)	(5,467)
Change in book cash overdrafts	(14,444)	9,700
Other Financing Activities	289	(9,920)
Deferred financing costs	(3,971)	0
Net cash provided by financing activities	113,183	88,398
Net increase (decrease) in cash, cash equivalents and restricted cash	69,052	(3,349)
Cash, cash equivalents and restricted cash at beginning of period	121,431	25,517
Cash, cash equivalents and restricted cash at end of period	190,483	22,168
Noncash activities:
Liabilities and right-of-use assets - operating leases	$ 1,132	$ 38,792