Consolidated Statements of Operations and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenues:
Rental and related revenue	$ 258,179	$ 218,755
General contractor and service fee revenue	31,113	7,614
Revenues, total	289,292	226,369
Expenses:
Rental expenses	28,130	18,843
Real estate taxes	41,170	36,727
General contractor and other services expenses	29,463	6,568
Depreciation and amortization	93,573	85,359
Costs and expenses, total	192,336	147,497
Other operating activities:
Equity in earnings of unconsolidated joint ventures	16,268	2,539
Gain on sale of properties	21,360	8,937
Gain on land sales	1,238	135
Other operating expenses	(1,145)	(1,112)
Impairment charges	0	(5,626)
Non-incremental costs related to successful leases	(2,958)	(2,525)
General and administrative expenses	(24,217)	(21,763)
Other Operating Activities, Net	10,546	(19,415)
Operating income	107,502	59,457
Other income (expenses):
Interest and other income, net	463	1,395
Interest expense	(22,507)	(23,494)
Loss on debt extinguishment	(70)	(17,806)
Income from continuing operations before income taxes	85,388	19,552
Income tax (expense) benefit	(5,184)	60
Income from continuing operations	80,204	19,612
Discontinued operations:
Gain on sale of properties	0	48
Income from discontinued operations	0	48
Net income	80,204	19,660
Net income attributable to noncontrolling interests	(842)	(204)
Net income attributable to common shareholders	$ 79,362	$ 19,456
Basic net income per common share/unit:
Continuing operations attributable to common shareholders/unitholders	$ 0.21	$ 0.05
Diluted net income per common share/unit:
Continuing operations attributable to common shareholders/unitholders	$ 0.21	$ 0.05
Weighted average number of common shares/units outstanding	373,667	368,190
Weighted average number of common shares/units and potential dilutive securities	377,744	371,870
Comprehensive income:
Net income	$ 80,204	$ 19,660
Amortization of interest rate swap contracts	889	801
Comprehensive income	81,093	20,461
Duke Realty Limited Partnership [Member]
Revenues:
Rental and related revenue	258,179	218,755
General contractor and service fee revenue	31,113	7,614
Revenues, total	289,292	226,369
Expenses:
Rental expenses	28,130	18,843
Real estate taxes	41,170	36,727
General contractor and other services expenses	29,463	6,568
Depreciation and amortization	93,573	85,359
Costs and expenses, total	192,336	147,497
Other operating activities:
Equity in earnings of unconsolidated joint ventures	16,268	2,539
Gain on sale of properties	21,360	8,937
Gain on land sales	1,238	135
Other operating expenses	(1,145)	(1,112)
Impairment charges	0	(5,626)
Non-incremental costs related to successful leases	(2,958)	(2,525)
General and administrative expenses	(24,217)	(21,763)
Other Operating Activities, Net	10,546	(19,415)
Operating income	107,502	59,457
Other income (expenses):
Interest and other income, net	463	1,395
Interest expense	(22,507)	(23,494)
Loss on debt extinguishment	(70)	(17,806)
Income from continuing operations before income taxes	85,388	19,552
Income tax (expense) benefit	(5,184)	60
Income from continuing operations	80,204	19,612
Discontinued operations:
Gain on sale of properties	0	48
Income from discontinued operations	0	48
Net income	80,204	19,660
Net income attributable to noncontrolling interests	(81)	(34)
Net income attributable to common shareholders	$ 80,123	$ 19,626
Basic net income per common share/unit:
Continuing operations attributable to common shareholders/unitholders	$ 0.21	$ 0.05
Diluted net income per common share/unit:
Continuing operations attributable to common shareholders/unitholders	$ 0.21	$ 0.05
Weighted average number of common shares/units outstanding	377,242	371,414
Weighted average number of common shares/units and potential dilutive securities	377,744	371,870
Comprehensive income:
Net income	$ 80,204	$ 19,660
Amortization of interest rate swap contracts	889	801
Comprehensive income	$ 81,093	$ 20,461