Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
ASSETS
Land and improvements	$ 1,460,568	$ 1,438,007
Buildings and tenant improvements	5,610,890	5,531,726
Construction in progress	367,813	256,895
Investments in and advances to unconsolidated companies	334,473	342,947
Undeveloped land	541,227	590,052
Real estate investment property, at cost, total	8,314,971	8,159,627
Accumulated depreciation	(1,430,006)	(1,368,406)
Net real estate investments	6,884,965	6,791,221
Real estate investments and other assets held-for-sale	29,780	57,466
Cash and cash equivalents	21,225	19,275
Accounts receivable, net of allowance	33,642	26,173
Straight-line rent receivable, net of allowance	128,949	118,251
Receivables on construction contracts, including retentions	37,708	19,209
Deferred financing costs, net of accumulated amortization	30,949	36,250
Deferred leasing and other costs, net of accumulated amortization	451,515	466,979
Escrow deposits and other assets	243,771	217,790
Total Assets	7,862,504	7,752,614
LIABILITIES AND EQUITY
Secured debt	1,008,662	1,100,124
Unsecured debt	3,065,223	3,066,252
Unsecured line of credit	60,000	88,000
Long-term debt, total	4,133,885	4,254,376
Liabilities related to real estate investments held-for-sale	538	2,075
Construction payables and amounts due subcontractors, including retentions	101,792	69,380
Accrued real estate taxes	84,634	74,696
Accrued interest	56,736	52,824
Other accrued expenses	61,836	67,495
Other liabilities	122,143	142,589
Tenant security deposits and prepaid rents	49,080	44,550
Total Liabilities	4,610,644	4,707,985
Equity
Preferred shares	428,926	447,683
Common shares	3,381	3,264
Additional paid-in capital	4,820,944	4,620,964
Accumulated other comprehensive income	3,600	4,119
Distributions in excess of net income	(2,031,957)	(2,062,787)
Total shareholders' equity	3,224,894	3,013,243
Noncontrolling interests	26,966	31,386
Total Equity	3,251,860	3,044,629
Total Liabilities and Equity	7,862,504	7,752,614
Duke Realty Limited Partnership [Member]
ASSETS
Land and improvements	1,460,568	1,438,007
Buildings and tenant improvements	5,610,890	5,531,726
Construction in progress	367,813	256,895
Investments in and advances to unconsolidated companies	334,473	342,947
Undeveloped land	541,227	590,052
Real estate investment property, at cost, total	8,314,971	8,159,627
Accumulated depreciation	(1,430,006)	(1,368,406)
Net real estate investments	6,884,965	6,791,221
Real estate investments and other assets held-for-sale	29,780	57,466
Cash and cash equivalents	21,225	19,275
Accounts receivable, net of allowance	33,642	26,173
Straight-line rent receivable, net of allowance	128,949	118,251
Receivables on construction contracts, including retentions	37,708	19,209
Deferred financing costs, net of accumulated amortization	30,949	36,250
Deferred leasing and other costs, net of accumulated amortization	451,515	466,979
Escrow deposits and other assets	243,771	217,790
Total Assets	7,862,504	7,752,614
LIABILITIES AND EQUITY
Secured debt	1,008,662	1,100,124
Unsecured debt	3,065,223	3,066,252
Unsecured line of credit	60,000	88,000
Long-term debt, total	4,133,885	4,254,376
Liabilities related to real estate investments held-for-sale	538	2,075
Construction payables and amounts due subcontractors, including retentions	101,792	69,380
Accrued real estate taxes	84,634	74,696
Accrued interest	56,736	52,824
Other accrued expenses	62,080	67,739
Other liabilities	122,143	142,589
Tenant security deposits and prepaid rents	49,080	44,550
Total Liabilities	4,610,888	4,708,229
Equity
Common equity	2,796,297	2,565,370
Preferred equity	428,926	447,683
General Partners' equity	3,225,223	3,013,053
Limited Partners' common equity	20,554	20,158
Accumulated other comprehensive income	3,600	4,119
Total partners' equity	3,249,377	3,037,330
Noncontrolling interests	2,239	7,055
Total Equity	3,251,616	3,044,385
Total Liabilities and Equity	$ 7,862,504	$ 7,752,614