Consolidated Statements of Operations and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues:
Rental and related revenue	$ 218,755	$ 209,965
General contractor and service fee revenue	7,614	54,964
Revenues, total	226,369	264,929
Expenses:
Rental expenses	18,843	20,668
Real estate taxes	36,727	32,442
General contractor and other services expenses	6,568	52,586
Depreciation and amortization	85,359	75,992
Costs and expenses, total	147,497	181,688
Other operating activities:
Equity in earnings of unconsolidated joint ventures	2,539	4,715
Gain on sale of properties	8,937	(163)
Gain on land sales	135	750
Other operating expenses	(1,112)	(2,123)
Impairment charges	(5,626)	0
Non-incremental costs related to successful leases	(2,525)	(2,156)
General and administrative expenses	(21,763)	(21,983)
Other Operating Activities, Net	(19,415)	(20,960)
Operating income	59,457	62,281
Other income (expenses):
Interest and other income, net	1,395	2,758
Interest expense	(23,494)	(22,132)
Loss on debt extinguishment	(17,806)	(13)
Gain on involuntary conversion	0	2,259
Income from continuing operations before income taxes	19,552	45,153
Income tax benefit (expense)	60	(385)
Income from continuing operations	19,612	44,768
Discontinued operations:
Gain on sale of properties	48	155
Income from discontinued operations	48	155
Net income	19,660	44,923
Net income attributable to noncontrolling interests	(204)	(372)
Net income attributable to common shareholders	$ 19,456	$ 44,551
Basic net income per common share/unit:
Continuing operations attributable to common shareholders/unitholders	$ 0.05	$ 0.12
Diluted net income per common share/unit:
Continuing operations attributable to common shareholders/unitholders	$ 0.05	$ 0.12
Weighted average number of common shares/units outstanding	368,190	359,139
Weighted average number of common shares/units and potential dilutive securities	371,870	362,362
Comprehensive income:
Net income	$ 19,660	$ 44,923
Unrealized losses on interest rate swap contracts	0	(9,342)
Amortization of interest rate swap contracts	801	0
Comprehensive income	20,461	35,581
Duke Realty Limited Partnership [Member]
Revenues:
Rental and related revenue	218,755	209,965
General contractor and service fee revenue	7,614	54,964
Revenues, total	226,369	264,929
Expenses:
Rental expenses	18,843	20,668
Real estate taxes	36,727	32,442
General contractor and other services expenses	6,568	52,586
Depreciation and amortization	85,359	75,992
Costs and expenses, total	147,497	181,688
Other operating activities:
Equity in earnings of unconsolidated joint ventures	2,539	4,715
Gain on sale of properties	8,937	(163)
Gain on land sales	135	750
Other operating expenses	(1,112)	(2,123)
Impairment charges	(5,626)	0
Non-incremental costs related to successful leases	(2,525)	(2,156)
General and administrative expenses	(21,763)	(21,983)
Other Operating Activities, Net	(19,415)	(20,960)
Operating income	59,457	62,281
Other income (expenses):
Interest and other income, net	1,395	2,758
Interest expense	(23,494)	(22,132)
Loss on debt extinguishment	(17,806)	(13)
Gain on involuntary conversion	0	2,259
Income from continuing operations before income taxes	19,552	45,153
Income tax benefit (expense)	60	(385)
Income from continuing operations	19,612	44,768
Discontinued operations:
Gain on sale of properties	48	155
Income from discontinued operations	48	155
Net income	19,660	44,923
Net (income) loss attributable to noncontrolling interests	(34)	10
Net income attributable to common shareholders	$ 19,626	$ 44,933
Basic net income per common share/unit:
Continuing operations attributable to common shareholders/unitholders	$ 0.05	$ 0.12
Diluted net income per common share/unit:
Continuing operations attributable to common shareholders/unitholders	$ 0.05	$ 0.12
Weighted average number of common shares/units outstanding	371,414	362,204
Weighted average number of common shares/units and potential dilutive securities	371,870	362,362
Comprehensive income:
Net income	$ 19,660	$ 44,923
Unrealized losses on interest rate swap contracts	0	(9,342)
Amortization of interest rate swap contracts	801	0
Comprehensive income	$ 20,461	$ 35,581