Consolidated Statements of Operations and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenues:
Rental and related revenue	$ 193,456	$ 171,676
General contractor and service fee revenue	41,101	9,399
Revenues, total	234,557	181,075
Expenses:
Rental expenses	20,396	16,237
Real estate taxes	31,146	26,511
General contractor and other services expenses	40,409	7,624
Depreciation and amortization	77,529	62,023
Costs and expenses, total	169,480	112,395
Other operating activities:
Equity in earnings of unconsolidated joint ventures	8,287	4,749
Gain on sale of properties	44,886	37,046
Gain on land sales	2,949	1,505
Other operating expenses	(786)	(738)
Impairment charges	0	(859)
General and administrative expenses	(21,023)	(19,232)
Other Operating Activities, Net	34,313	22,471
Operating income	99,390	91,151
Other income (expenses):
Interest and other income, net	4,463	533
Interest expense	(20,000)	(24,162)
Gain on debt extinguishment	0	25
Income from continuing operations before income taxes	83,853	67,547
Income tax expense	(10,329)	(2,132)
Income from continuing operations	73,524	65,415
Discontinued operations:
(Loss) income before gain on sales and income tax	(8)	5,366
Gain on sale of depreciable properties	132	0
Income from discontinued operations	124	5,366
Net income	73,648	70,781
Net income attributable to noncontrolling interests	(685)	(581)
Net income attributable to common shareholders	$ 72,963	$ 70,200
Basic net income per common share/unit:
Continuing operations attributable to common shareholders/unitholders	$ 0.20	$ 0.18
Discontinuing operations attributable to common shareholders/unitholders	0	0.02
Earnings Per Share, Basic	0.20	0.20
Diluted net income per common share/unit:
Continuing operations attributable to common shareholders/unitholders	0.20	0.18
Discontinued operations attributable to common shareholders/unitholders	0	0.02
Earnings Per Share, Diluted	$ 0.20	$ 0.20
Weighted average number of common shares/units outstanding	356,740	355,282
Weighted average number of common shares/units and potential dilutive securities	360,400	360,700
Comprehensive income:
Net income	$ 73,648	$ 70,781
Other comprehensive loss:
Amortization of interest contracts	0	(256)
Comprehensive income	73,648	70,525
Duke Realty Limited Partnership [Member]
Revenues:
Rental and related revenue	193,456	171,676
General contractor and service fee revenue	41,101	9,399
Revenues, total	234,557	181,075
Expenses:
Rental expenses	20,396	16,237
Real estate taxes	31,146	26,511
General contractor and other services expenses	40,409	7,624
Depreciation and amortization	77,529	62,023
Costs and expenses, total	169,480	112,395
Other operating activities:
Equity in earnings of unconsolidated joint ventures	8,287	4,749
Gain on sale of properties	44,886	37,046
Gain on land sales	2,949	1,505
Other operating expenses	(786)	(738)
Impairment charges	0	(859)
General and administrative expenses	(21,023)	(19,232)
Other Operating Activities, Net	34,313	22,471
Operating income	99,390	91,151
Other income (expenses):
Interest and other income, net	4,463	533
Interest expense	(20,000)	(24,162)
Gain on debt extinguishment	0	25
Income from continuing operations before income taxes	83,853	67,547
Income tax expense	(10,329)	(2,132)
Income from continuing operations	73,524	65,415
Discontinued operations:
(Loss) income before gain on sales and income tax	(8)	5,366
Gain on sale of depreciable properties	132	0
Income from discontinued operations	124	5,366
Net income	73,648	70,781
Net (income) loss attributable to noncontrolling interests	(2)	71
Net income attributable to common shareholders	$ 73,646	$ 70,852
Basic net income per common share/unit:
Continuing operations attributable to common shareholders/unitholders	$ 0.20	$ 0.18
Discontinuing operations attributable to common shareholders/unitholders	0	0.02
Earnings Per Share, Basic	0.20	0.20
Diluted net income per common share/unit:
Continuing operations attributable to common shareholders/unitholders	0.20	0.18
Discontinued operations attributable to common shareholders/unitholders	0	0.02
Earnings Per Share, Diluted	$ 0.20	$ 0.20
Weighted average number of common shares/units outstanding	360,095	358,598
Weighted average number of common shares/units and potential dilutive securities	360,400	360,700
Comprehensive income:
Net income	$ 73,648	$ 70,781
Other comprehensive loss:
Amortization of interest contracts	0	(256)
Comprehensive income	$ 73,648	$ 70,525