Performance Based Plan (Details)	12 Months Ended
Dec. 31, 2020
Maximum [Member]
Maximum and Minimum Payout Percentages	200.00%
Minimum [Member]
Maximum and Minimum Payout Percentages	0.00%

Share-based Compensation Arrangement by Share-based Payment Award, Percent of Compensation in Performance Shares

No definition available.

Name:	dre_SharebasedCompensationArrangementbySharebasedPaymentAwardPercentofCompensationinPerformanceShares
Namespace Prefix:	dre_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration