Consolidated Statements of Operations and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenues:
Rental and related revenue	$ 196,912	$ 169,611	$ 582,461	$ 507,123
General contractor and service fee revenue	34,986	25,217	94,552	58,192
Revenues, total	231,898	194,828	677,013	565,315
Expenses:
Rental expenses	17,704	16,224	54,869	46,967
Real estate taxes	31,515	28,157	93,857	81,569
General contractor and other services expenses	33,730	24,079	89,392	54,077
Depreciation and amortization	78,855	67,992	232,216	197,028
Costs and expenses, total	161,804	136,452	470,334	379,641
Other operating activities:
Equity in earnings of unconsolidated joint ventures	5,552	1,841	15,521	58,523
Promote income	0	0	0	20,007
Gain on sale of properties	(107)	21,952	194,741	93,339
Gain on land sales	3,915	5,665	7,221	8,449
Other operating expenses	(668)	(770)	(2,591)	(2,226)
Impairment charges	0	(3,622)	0	(4,481)
General and administrative expenses	(8,959)	(10,075)	(43,441)	(41,165)
Other Operating Activities, Net	(267)	14,991	171,451	132,446
Operating income	69,827	73,367	378,130	318,120
Other income (expenses):
Interest and other income, net	4,129	6,404	13,319	9,197
Interest expense	(21,462)	(20,835)	(62,137)	(65,401)
Loss on debt extinguishment	(89)	(16,568)	(240)	(26,104)
Income from continuing operations before income taxes	52,405	42,368	329,072	235,812
Income tax benefit (expense)	897	(359)	(9,495)	(7,918)
Income from continuing operations	53,302	42,009	319,577	227,894
Discontinued operations:
Income before gain on sales and income tax	85	2,563	108	17,747
Gain on sale of depreciable properties	136	120,179	3,157	1,229,270
Income tax benefit (expense)	0	876	0	(10,736)
Income from discontinued operations	221	123,618	3,265	1,236,281
Net income	53,523	165,627	322,842	1,464,175
Net income attributable to noncontrolling interests	(498)	(358)	(3,009)	(18,163)
Net income attributable to common shareholders	$ 53,025	$ 165,269	$ 319,833	$ 1,446,012
Basic net income per common share/unit:
Continuing operations attributable to common shareholders/unitholders	$ 0.15	$ 0.12	$ 0.88	$ 0.63
Discontinuing operations attributable to common shareholders/unitholders	0	0.34	0.01	3.43
Earnings Per Share, Basic	0.15	0.46	0.89	4.06
Diluted net income per common share/unit:
Continuing operations attributable to common shareholders/unitholders	0.15	0.12	0.88	0.63
Discontinued operations attributable to common shareholders/unitholders	0	0.34	0.01	3.40
Earnings Per Share, Diluted	$ 0.15	$ 0.46	$ 0.89	$ 4.03
Weighted average number of common shares/units outstanding	357,898	355,905	357,235	355,614
Weighted average number of common shares/units and potential dilutive securities	361,410	362,102	362,745	361,947
Comprehensive income:
Net income	$ 53,523	$ 165,627	$ 322,842	$ 1,464,175
Other comprehensive loss:
Amortization of interest contracts	0	0	0	(682)
Comprehensive income	53,523	165,627	322,842	1,463,493
Duke Realty Limited Partnership [Member]
Revenues:
Rental and related revenue	196,912	169,611	582,461	507,123
General contractor and service fee revenue	34,986	25,217	94,552	58,192
Revenues, total	231,898	194,828	677,013	565,315
Expenses:
Rental expenses	17,704	16,224	54,869	46,967
Real estate taxes	31,515	28,157	93,857	81,569
General contractor and other services expenses	33,730	24,079	89,392	54,077
Depreciation and amortization	78,855	67,992	232,216	197,028
Costs and expenses, total	161,804	136,452	470,334	379,641
Other operating activities:
Equity in earnings of unconsolidated joint ventures	5,552	1,841	15,521	58,523
Promote income	0	0	0	20,007
Gain on sale of properties	(107)	21,952	194,741	93,339
Gain on land sales	3,915	5,665	7,221	8,449
Other operating expenses	(668)	(770)	(2,591)	(2,226)
Impairment charges	0	(3,622)	0	(4,481)
General and administrative expenses	(8,959)	(10,075)	(43,441)	(41,165)
Other Operating Activities, Net	(267)	14,991	171,451	132,446
Operating income	69,827	73,367	378,130	318,120
Other income (expenses):
Interest and other income, net	4,129	6,404	13,319	9,197
Interest expense	(21,462)	(20,835)	(62,137)	(65,401)
Loss on debt extinguishment	(89)	(16,568)	(240)	(26,104)
Income from continuing operations before income taxes	52,405	42,368	329,072	235,812
Income tax benefit (expense)	897	(359)	(9,495)	(7,918)
Income from continuing operations	53,302	42,009	319,577	227,894
Discontinued operations:
Income before gain on sales and income tax	85	2,563	108	17,747
Gain on sale of depreciable properties	136	120,179	3,157	1,229,270
Income tax benefit (expense)	0	876	0	(10,736)
Income from discontinued operations	221	123,618	3,265	1,236,281
Net income	53,523	165,627	322,842	1,464,175
Net (income) loss attributable to noncontrolling interests	(3)	1,177	(7)	(4,736)
Net income attributable to common shareholders	$ 53,520	$ 166,804	$ 322,835	$ 1,459,439
Basic net income per common share/unit:
Continuing operations attributable to common shareholders/unitholders	$ 0.15	$ 0.12	$ 0.88	$ 0.63
Discontinuing operations attributable to common shareholders/unitholders	0	0.34	0.01	3.43
Earnings Per Share, Basic	0.15	0.46	0.89	4.06
Diluted net income per common share/unit:
Continuing operations attributable to common shareholders/unitholders	0.15	0.12	0.88	0.63
Discontinued operations attributable to common shareholders/unitholders	0	0.34	0.01	3.40
Earnings Per Share, Diluted	$ 0.15	$ 0.46	$ 0.89	$ 4.03
Weighted average number of common shares/units outstanding	361,200	359,206	360,585	358,921
Weighted average number of common shares/units and potential dilutive securities	361,410	362,102	362,745	361,947
Comprehensive income:
Net income	$ 53,523	$ 165,627	$ 322,842	$ 1,464,175
Other comprehensive loss:
Amortization of interest contracts	0	0	0	(682)
Comprehensive income	$ 53,523	$ 165,627	$ 322,842	$ 1,463,493