Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Accounts receivable, allowance	$ 2,148	$ 1,972
Straight-line rent receivable, allowance	5,506	5,337
Deferred leasing and other costs, accumulated amortization	258,388	250,249
Deferred Finance Costs, Net	$ 22,064	$ 23,052
Common shares, par value	$ 0.01	$ 0.01
Common shares, shares authorized	600,000,000	600,000,000
Common shares, shares issued	355,587,000	354,756,000
Common shares, shares outstanding	355,587,000	354,756,000
Duke Realty Limited Partnership [Member]
Accounts receivable, allowance	$ 2,148	$ 1,972
Straight-line rent receivable, allowance	5,506	5,337
Deferred leasing and other costs, accumulated amortization	$ 258,388	$ 250,249
Common equity, General Partner Units issued	355,587,000	354,756,000
Common equity, General Partner Units outstanding	355,587,000	354,756,000
Limited Partner Units issued	3,308,000	3,408,000
Limited Partner Units outstanding	3,308,000	3,408,000
Secured Debt [Member]
Deferred Finance Costs, Net	$ 869	$ 969
Secured Debt [Member] | Duke Realty Limited Partnership [Member]
Deferred Finance Costs, Net	869	969
Unsecured Debt [Member]
Deferred Finance Costs, Net	21,195	22,083
Unsecured Debt [Member] | Duke Realty Limited Partnership [Member]
Deferred Finance Costs, Net	$ 21,195	$ 22,083