Net Income (Loss) Per Common Share Reconciling the Components of Basic and Diluted Net Income (Loss) per Common Share (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income attributable to common shareholders	$ 102,470	$ 175,817	$ 351,391	$ 255,179
Less: dividends on participating securities	(319)	(365)	(645)	(735)
Basic net income attributable to common shareholders	102,151	175,452	350,746	254,444
Add back dividends on dilutive participating securities	0	365	645	735
Noncontrolling interest in earnings of common unitholders	1,128	1,738	3,591	2,499
Diluted net income attributable to common shareholders	$ 103,279	$ 177,555	$ 354,982	$ 257,678
Weighted average number of common shares/units outstanding, Basic	384,519	376,020	383,619	374,850
Weighted average Limited Partner Units outstanding	4,022	3,770	3,915	3,673
Other potential dilutive shares/units	658	1,831	1,731	1,811
Weighted average number of common shares/units and potential dilutive securities	389,199	381,621	389,265	380,334
Duke Realty Limited Partnership [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income attributable to common shareholders	$ 103,598	$ 177,555	$ 354,982	$ 257,678
Less: dividends on participating securities	(319)	(365)	(645)	(735)
Basic net income attributable to common unitholders	103,279	177,190	354,337	256,943
Add back dividends on dilutive participating securities	0	365	645	735
Diluted net income attributable to common unitholders	$ 103,279	$ 177,555	$ 354,982	$ 257,678
Weighted average number of common shares/units outstanding, Basic	388,541	379,790	387,534	378,523
Other potential dilutive shares/units	658	1,831	1,731	1,811
Weighted average number of common shares/units and potential dilutive securities	389,199	381,621	389,265	380,334