Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Accounts receivable, allowance	$ 1,185	$ 1,113
Straight-line rent receivable, allowance	6,664	6,155
Deferred leasing and other costs, accumulated amortization	255,300	245,426
Deferred Finance Costs, Net	$ 24,754	$ 21,598
Common shares, par value	$ 0.01	$ 0.01
Common shares, shares authorized	600,000,000	600,000,000
Common shares, shares issued	354,616,000	345,285,000
Common shares, shares outstanding	354,616,000	345,285,000
Duke Realty Limited Partnership [Member]
Accounts receivable, allowance	$ 1,185	$ 1,113
Straight-line rent receivable, allowance	6,664	6,155
Deferred leasing and other costs, accumulated amortization	$ 255,300	$ 245,426
Common equity, General Partner Units issued	354,616,000	345,285,000
Common equity, General Partner Units outstanding	354,616,000	345,285,000
Limited Partner Units issued	3,427,000	3,487,000
Limited Partner Units outstanding	3,427,000	3,487,000
Secured Debt [Member]
Deferred Finance Costs, Net	$ 1,062	$ 1,552
Secured Debt [Member] | Duke Realty Limited Partnership [Member]
Deferred Finance Costs, Net	1,062	1,552
Unsecured Debt [Member]
Deferred Finance Costs, Net	23,692	20,046
Unsecured Debt [Member] | Duke Realty Limited Partnership [Member]
Deferred Finance Costs, Net	$ 23,692	$ 20,046