Consolidated Statements of Operations and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenues:
Rental and related revenue	$ 169,611	$ 162,322	$ 507,123	$ 480,819
General contractor and service fee revenue	25,217	19,351	58,192	68,546
Revenues, total	194,828	181,673	565,315	549,365
Expenses:
Rental expenses	16,224	16,933	46,967	54,685
Real estate taxes	28,157	26,001	81,569	75,687
General contractor and other services expenses	24,079	17,182	54,077	60,330
Depreciation and amortization	67,992	61,820	197,028	182,489
Costs and expenses, total	136,452	121,936	379,641	373,191
Other operating activities:
Equity in earnings of unconsolidated companies	1,841	12,010	58,523	37,404
Gain on dissolution of unconsolidated company	0	0	0	30,697
Promote income	0	2,212	20,007	26,299
Gain on sale of properties	21,952	82,698	93,339	137,589
Gain on land sales	5,665	1,601	8,449	2,438
Other operating expenses	(770)	(1,424)	(2,226)	(3,496)
Impairment charges	(3,622)	(3,042)	(4,481)	(15,098)
General and administrative expenses	(10,075)	(12,534)	(41,165)	(42,216)
Other Operating Activities, Net	14,991	81,521	132,446	173,617
Operating income	73,367	141,258	318,120	349,791
Other income (expenses):
Interest and other income, net	6,404	507	9,197	3,597
Interest expense	(20,835)	(27,283)	(65,401)	(87,255)
Loss on debt extinguishment	(16,568)	(6,243)	(26,104)	(8,673)
Acquisition-related activity	0	(7)	0	(82)
Income from continuing operations before income taxes	42,368	108,232	235,812	257,378
Income tax (expense) benefit	(359)	359	(7,918)	173
Income from continuing operations	42,009	108,591	227,894	257,551
Discontinued operations:
Income before gain on sales	2,563	4,249	17,747	9,062
Gain on sale of depreciable properties	120,179	319	1,229,270	485
Income tax (expense) benefit	876	0	(10,736)	0
Income from discontinued operations	123,618	4,568	1,236,281	9,547
Net income	165,627	113,159	1,464,175	267,098
Net income attributable to noncontrolling interests	(358)	(1,145)	(18,163)	(2,710)
Net income attributable to common shareholders	$ 165,269	$ 112,014	$ 1,446,012	$ 264,388
Basic net income per common share/unit:
Continuing operations attributable to common shareholders/unitholders	$ 0.12	$ 0.31	$ 0.63	$ 0.72
Discontinuing operations attributable to common shareholders/unitholders	0.34	0.01	3.43	0.03
Earnings Per Share, Basic	0.46	0.32	4.06	0.75
Diluted net income per common share/unit:
Continuing operations attributable to common shareholders/unitholders	0.12	0.31	0.63	0.72
Discontinued operations attributable to common shareholders/unitholders	0.34	0.01	3.40	0.03
Earnings Per Share, Diluted	$ 0.46	$ 0.32	$ 4.03	$ 0.75
Weighted average number of common shares/units outstanding	355,905	351,856	355,614	348,341
Weighted average number of common shares/units and potential dilutive securities	362,102	358,981	361,947	355,405
Comprehensive income:
Net income	$ 165,627	$ 113,159	$ 1,464,175	$ 267,098
Other comprehensive loss:
Amortization of interest contracts	0	(255)	(682)	(845)
Other	0	(23)	0	(23)
Total other comprehensive loss	0	(278)	(682)	(868)
Comprehensive income	165,627	112,881	1,463,493	266,230
Duke Realty Limited Partnership [Member]
Revenues:
Rental and related revenue	169,611	162,322	507,123	480,819
General contractor and service fee revenue	25,217	19,351	58,192	68,546
Revenues, total	194,828	181,673	565,315	549,365
Expenses:
Rental expenses	16,224	16,933	46,967	54,685
Real estate taxes	28,157	26,001	81,569	75,687
General contractor and other services expenses	24,079	17,182	54,077	60,330
Depreciation and amortization	67,992	61,820	197,028	182,489
Costs and expenses, total	136,452	121,936	379,641	373,191
Other operating activities:
Equity in earnings of unconsolidated companies	1,841	12,010	58,523	37,404
Gain on dissolution of unconsolidated company	0	0	0	30,697
Promote income	0	2,212	20,007	26,299
Gain on sale of properties	21,952	82,698	93,339	137,589
Gain on land sales	5,665	1,601	8,449	2,438
Other operating expenses	(770)	(1,424)	(2,226)	(3,496)
Impairment charges	(3,622)	(3,042)	(4,481)	(15,098)
General and administrative expenses	(10,075)	(12,534)	(41,165)	(42,216)
Other Operating Activities, Net	14,991	81,521	132,446	173,617
Operating income	73,367	141,258	318,120	349,791
Other income (expenses):
Interest and other income, net	6,404	507	9,197	3,597
Interest expense	(20,835)	(27,283)	(65,401)	(87,255)
Loss on debt extinguishment	(16,568)	(6,243)	(26,104)	(8,673)
Acquisition-related activity	0	(7)	0	(82)
Income from continuing operations before income taxes	42,368	108,232	235,812	257,378
Income tax (expense) benefit	(359)	359	(7,918)	173
Income from continuing operations	42,009	108,591	227,894	257,551
Discontinued operations:
Income before gain on sales	2,563	4,249	17,747	9,062
Gain on sale of depreciable properties	120,179	319	1,229,270	485
Income tax (expense) benefit	876	0	(10,736)	0
Income from discontinued operations	123,618	4,568	1,236,281	9,547
Net income	165,627	113,159	1,464,175	267,098
Net loss (income) attributable to noncontrolling interests	1,177	(14)	(4,736)	(40)
Net income attributable to common shareholders	$ 166,804	$ 113,145	$ 1,459,439	$ 267,058
Basic net income per common share/unit:
Continuing operations attributable to common shareholders/unitholders	$ 0.12	$ 0.31	$ 0.63	$ 0.72
Discontinuing operations attributable to common shareholders/unitholders	0.34	0.01	3.43	0.03
Earnings Per Share, Basic	0.46	0.32	4.06	0.75
Diluted net income per common share/unit:
Continuing operations attributable to common shareholders/unitholders	0.12	0.31	0.63	0.72
Discontinued operations attributable to common shareholders/unitholders	0.34	0.01	3.40	0.03
Earnings Per Share, Diluted	$ 0.46	$ 0.32	$ 4.03	$ 0.75
Weighted average number of common shares/units outstanding	359,206	355,351	358,921	351,840
Weighted average number of common shares/units and potential dilutive securities	362,102	358,981	361,947	355,405
Comprehensive income:
Net income	$ 165,627	$ 113,159	$ 1,464,175	$ 267,098
Other comprehensive loss:
Amortization of interest contracts	0	(255)	(682)	(845)
Other	0	(23)	0	(23)
Total other comprehensive loss	0	(278)	(682)	(868)
Comprehensive income	$ 165,627	$ 112,881	$ 1,463,493	$ 266,230