XML 102 R34.htm IDEA: XBRL DOCUMENT v2.4.1.9
Related Party Transactions (Schedule of Fees Earned from Related Parties) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Management Fees [Member]    
Revenue from related party transactions $ 1,801us-gaap_RevenueFromRelatedParties
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dre_ManagementFeesMember
$ 2,219us-gaap_RevenueFromRelatedParties
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dre_ManagementFeesMember
Leasing Fees [Member]    
Revenue from related party transactions 633us-gaap_RevenueFromRelatedParties
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dre_LeasingFeesMember
344us-gaap_RevenueFromRelatedParties
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dre_LeasingFeesMember
Construction and Development Fees [Member]    
Revenue from related party transactions $ 405us-gaap_RevenueFromRelatedParties
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dre_ConstructionAndDevelopmentFeesMember
$ 965us-gaap_RevenueFromRelatedParties
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dre_ConstructionAndDevelopmentFeesMember