Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities:
Net income	$ 44,923	$ 73,648
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of buildings and tenant improvements	62,423	63,944
Amortization of deferred leasing and other costs	13,569	13,585
Amortization of deferred financing costs	1,562	1,418
Straight-line rental income and expense, net	(5,704)	(6,288)
Loss on debt extinguishment	13	0
Gain on involuntary conversion	(2,259)	0
Gains on land and depreciated property sales	(742)	(47,967)
Third-party construction contracts, net	11,700	(367)
Other accrued revenues and expenses, net	(10,893)	19,862
Equity in earnings (in excess of) or less than operating distributions received from unconsolidated joint ventures	(33)	(4,673)
Net cash provided by operating activities	114,559	113,162
Cash flows from investing activities:
Development of real estate investments	(85,772)	(104,346)
Acquisition of real estate investments and related intangible assets	(76,081)	(22,801)
Acquisition of undeveloped land	(53,551)	(67,256)
Second generation tenant improvements, leasing costs and building improvements	(10,245)	(14,102)
Other deferred leasing costs	(1,712)	(9,798)
Other assets	(9,381)	(685)
Proceeds from the repayments of notes receivable from property sales	35,000	39,868
Proceeds from land and depreciated property sales, net	1,910	131,380
Capital distributions from unconsolidated joint ventures	0	9,404
Capital contributions and advances to unconsolidated joint ventures	(6,474)	0
Net cash used for investing activities	(206,306)	(38,336)
Cash flows from financing activities:
Proceeds from issuance of common shares, net	4,492	706
Payments on unsecured debt	0	(656)
Payments on secured indebtedness including principal amortization	(42,665)	(1,345)
Borrowings on line of credit, net	210,000	75,000
Distributions to common shareholders/unitholders	(77,237)	(71,398)
Distributions to noncontrolling Interest	(505)	(680)
Tax payments on stock-based compensation awards	(5,467)	(7,984)
Change in book cash overdrafts	9,700	(33,448)
Proceeds from (Payments for) Other Financing Activities	(9,920)	0
Deferred financing costs	0	(285)
Net cash provided by (used for) financing activities	88,398	(40,090)
Net (decrease) increase in cash, cash equivalents and restricted cash	(3,349)	34,736
Cash, cash equivalents and restricted cash at beginning of period	25,517	193,627
Cash, cash equivalents and restricted cash at end of period	22,168	228,363
Noncash operating activities:
Liabilities and right-of-use assets - operating leases	38,792	0
Duke Realty Limited Partnership [Member]
Cash flows from operating activities:
Net income	44,923	73,648
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of buildings and tenant improvements	62,423	63,944
Amortization of deferred leasing and other costs	13,569	13,585
Amortization of deferred financing costs	1,562	1,418
Straight-line rental income and expense, net	(5,704)	(6,288)
Loss on debt extinguishment	13	0
Gain on involuntary conversion	(2,259)	0
Gains on land and depreciated property sales	(742)	(47,967)
Third-party construction contracts, net	11,700	(367)
Other accrued revenues and expenses, net	(10,893)	19,862
Equity in earnings (in excess of) or less than operating distributions received from unconsolidated joint ventures	(33)	(4,673)
Net cash provided by operating activities	114,559	113,162
Cash flows from investing activities:
Development of real estate investments	(85,772)	(104,346)
Acquisition of real estate investments and related intangible assets	(76,081)	(22,801)
Acquisition of undeveloped land	(53,551)	(67,256)
Second generation tenant improvements, leasing costs and building improvements	(10,245)	(14,102)
Other deferred leasing costs	(1,712)	(9,798)
Other assets	(9,381)	(685)
Proceeds from the repayments of notes receivable from property sales	35,000	39,868
Proceeds from land and depreciated property sales, net	1,910	131,380
Capital distributions from unconsolidated joint ventures	0	9,404
Capital contributions and advances to unconsolidated joint ventures	(6,474)	0
Net cash used for investing activities	(206,306)	(38,336)
Cash flows from financing activities:
Contributions from the General Partner	4,492	706
Payments on unsecured debt	0	(656)
Payments on secured indebtedness including principal amortization	(42,665)	(1,345)
Borrowings on line of credit, net	210,000	75,000
Distributions to common shareholders/unitholders	(77,915)	(72,078)
Distributions to noncontrolling Interest	173	0
Tax payments on stock-based compensation awards	(5,467)	(7,984)
Change in book cash overdrafts	9,700	(33,448)
Proceeds from (Payments for) Other Financing Activities	(9,920)	0
Deferred financing costs	0	(285)
Net cash provided by (used for) financing activities	88,398	(40,090)
Net (decrease) increase in cash, cash equivalents and restricted cash	(3,349)	34,736
Cash, cash equivalents and restricted cash at beginning of period	25,517	193,627
Cash, cash equivalents and restricted cash at end of period	22,168	228,363
Noncash operating activities:
Liabilities and right-of-use assets - operating leases	$ 38,792	$ 0