Consolidated Statements of Operations and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Revenues:
Rental and related revenue	$ 165,836	$ 157,910	$ 337,512	$ 318,497
General contractor and service fee revenue	23,576	26,044	32,975	49,195
Revenues, total	189,412	183,954	370,487	367,692
Expenses:
Rental expenses	14,506	17,017	30,743	37,752
Real estate taxes	26,902	24,899	53,412	49,685
General contractor and other services expenses	22,374	22,228	29,998	43,148
Depreciation and amortization	67,013	61,136	129,036	120,669
Costs and expenses, total	130,795	125,280	243,189	251,254
Other operating activities:
Equity in earnings of unconsolidated companies	51,933	3,534	56,682	25,394
Gain on dissolution of unconsolidated company	0	30,697	0	30,697
Promote income	20,007	24,087	20,007	24,087
Gain on sale of properties	34,341	39,314	71,387	54,891
Gain on land sales	1,279	707	2,784	837
Other operating expenses	(718)	(836)	(1,457)	(2,072)
Impairment charges	0	(5,651)	(859)	(12,056)
General and administrative expenses	(11,858)	(11,584)	(31,090)	(29,682)
Other Operating Activities, Net	94,984	80,268	117,454	92,096
Operating income	153,601	138,942	244,752	208,534
Other income (expenses):
Interest and other income, net	2,260	567	2,792	3,090
Interest expense	(21,680)	(29,511)	(44,566)	(59,644)
Loss on debt extinguishment	(9,561)	(2,430)	(9,536)	(2,430)
Acquisition-related activity	0	(72)	0	(75)
Income from continuing operations before income taxes	124,620	107,496	193,442	149,475
Income tax (expense) benefit	(5,426)	157	(7,557)	(186)
Income from continuing operations	119,194	107,653	185,885	149,289
Discontinued operations:
Income before gain on sales	11,095	2,278	15,185	4,484
Gain on sale of depreciable properties	1,109,091	252	1,109,091	166
Income tax expense	(11,613)	0	(11,613)	0
Income from discontinued operations	1,108,573	2,530	1,112,663	4,650
Net income	1,227,767	110,183	1,298,548	153,939
Net income attributable to noncontrolling interests	(17,224)	(1,116)	(17,805)	(1,565)
Net income attributable to common shareholders	$ 1,210,543	$ 109,067	$ 1,280,743	$ 152,374
Basic net income per common share/unit:
Continuing operations attributable to common shareholders/unitholders	$ 0.33	$ 0.30	$ 0.52	$ 0.43
Discontinuing operations attributable to common shareholders/unitholders	3.07	0.01	3.08	0.01
Earnings Per Share, Basic	3.40	0.31	3.60	0.44
Diluted net income per common share/unit:
Continuing operations attributable to common shareholders/unitholders	0.33	0.30	0.51	0.43
Discontinued operations attributable to common shareholders/unitholders	3.05	0.01	3.06	0.01
Earnings Per Share, Diluted	$ 3.38	$ 0.31	$ 3.57	$ 0.44
Weighted average number of common shares/units outstanding	355,647	347,464	355,466	346,564
Weighted average number of common shares/units and potential dilutive securities	361,981	354,433	361,789	352,227
Comprehensive income:
Net income	$ 1,227,767	$ 110,183	$ 1,298,548	$ 153,939
Other comprehensive loss:
Amortization of interest contracts and other	(426)	(295)	(682)	(590)
Comprehensive income	1,227,341	109,888	1,297,866	153,349
Duke Realty Limited Partnership [Member]
Revenues:
Rental and related revenue	165,836	157,910	337,512	318,497
General contractor and service fee revenue	23,576	26,044	32,975	49,195
Revenues, total	189,412	183,954	370,487	367,692
Expenses:
Rental expenses	14,506	17,017	30,743	37,752
Real estate taxes	26,902	24,899	53,412	49,685
General contractor and other services expenses	22,374	22,228	29,998	43,148
Depreciation and amortization	67,013	61,136	129,036	120,669
Costs and expenses, total	130,795	125,280	243,189	251,254
Other operating activities:
Equity in earnings of unconsolidated companies	51,933	3,534	56,682	25,394
Gain on dissolution of unconsolidated company	0	30,697	0	30,697
Promote income	20,007	24,087	20,007	24,087
Gain on sale of properties	34,341	39,314	71,387	54,891
Gain on land sales	1,279	707	2,784	837
Other operating expenses	(718)	(836)	(1,457)	(2,072)
Impairment charges	0	(5,651)	(859)	(12,056)
General and administrative expenses	(11,858)	(11,584)	(31,090)	(29,682)
Other Operating Activities, Net	94,984	80,268	117,454	92,096
Operating income	153,601	138,942	244,752	208,534
Other income (expenses):
Interest and other income, net	2,260	567	2,792	3,090
Interest expense	(21,680)	(29,511)	(44,566)	(59,644)
Loss on debt extinguishment	(9,561)	(2,430)	(9,536)	(2,430)
Acquisition-related activity	0	(72)	0	(75)
Income from continuing operations before income taxes	124,620	107,496	193,442	149,475
Income tax (expense) benefit	(5,426)	157	(7,557)	(186)
Income from continuing operations	119,194	107,653	185,885	149,289
Discontinued operations:
Income before gain on sales	11,095	2,278	15,185	4,484
Gain on sale of depreciable properties	1,109,091	252	1,109,091	166
Income tax expense	(11,613)	0	(11,613)	0
Income from discontinued operations	1,108,573	2,530	1,112,663	4,650
Net income	1,227,767	110,183	1,298,548	153,939
Net income attributable to noncontrolling interests	(5,984)	(15)	(5,913)	(26)
Net income attributable to common shareholders	$ 1,221,783	$ 110,168	$ 1,292,635	$ 153,913
Basic net income per common share/unit:
Continuing operations attributable to common shareholders/unitholders	$ 0.33	$ 0.30	$ 0.52	$ 0.43
Discontinuing operations attributable to common shareholders/unitholders	3.07	0.01	3.08	0.01
Earnings Per Share, Basic	3.40	0.31	3.60	0.44
Diluted net income per common share/unit:
Continuing operations attributable to common shareholders/unitholders	0.33	0.30	0.51	0.43
Discontinued operations attributable to common shareholders/unitholders	3.05	0.01	3.06	0.01
Earnings Per Share, Diluted	$ 3.38	$ 0.31	$ 3.57	$ 0.44
Weighted average number of common shares/units outstanding	358,952	350,968	358,776	350,065
Weighted average number of common shares/units and potential dilutive securities	361,981	354,433	361,789	352,227
Comprehensive income:
Net income	$ 1,227,767	$ 110,183	$ 1,298,548	$ 153,939
Other comprehensive loss:
Amortization of interest contracts and other	(426)	(295)	(682)	(590)
Comprehensive income	$ 1,227,341	$ 109,888	$ 1,297,866	$ 153,349