Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
ASSETS
Real Estate Assets	$ 8,855,987	$ 8,745,155
Construction in progress	856,496	695,219
Investments in and advances to unconsolidated joint ventures	128,010	131,898
Undeveloped land	294,855	291,614
Real estate investment property, at cost, total	10,135,348	9,863,886
Accumulated depreciation	(1,705,011)	(1,659,308)
Net real estate investments	8,430,337	8,204,578
Real estate investments and other assets held-for-sale	0	67,946
Cash and cash equivalents	9,009	6,309
Accounts receivable	16,925	15,204
Straight-line rent receivable	162,198	153,943
Receivables on construction contracts, including retentions	27,221	30,583
Deferred leasing and other costs, net of accumulated amortization	340,539	329,765
Restricted cash held in escrow for like kind exchange	0	47,682
Other escrow deposits and other assets	309,218	255,384
Total Assets	9,295,447	9,111,394
LIABILITIES AND EQUITY
Secured debt, net of deferred financing costs	63,007	64,074
Unsecured debt, net of deferred financing costs	3,469,884	3,025,977
Unsecured line of credit	0	295,000
Long-term debt, total	3,532,891	3,385,051
Liabilities related to real estate investments held-for-sale	0	7,740
Construction payables and amounts due subcontractors, including retentions	88,811	62,332
Accrued real estate taxes	80,909	76,501
Accrued interest	27,605	18,363
Other liabilities	245,940	269,806
Tenant security deposits and prepaid rents	60,150	57,153
Total Liabilities	4,036,306	3,876,946
Equity
Common shares	3,743	3,733
Additional paid-in capital	5,756,738	5,723,326
Accumulated Other Comprehensive Loss	(30,679)	(31,568)
Distributions in excess of net income	(548,843)	(532,519)
Total shareholders' equity	5,180,959	5,162,972
Noncontrolling interests	78,182	71,476
Total Equity	5,259,141	5,234,448
Total Liabilities and Equity	9,295,447	9,111,394
Duke Realty Limited Partnership [Member]
ASSETS
Real Estate Assets	8,855,987	8,745,155
Construction in progress	856,496	695,219
Investments in and advances to unconsolidated joint ventures	128,010	131,898
Undeveloped land	294,855	291,614
Real estate investment property, at cost, total	10,135,348	9,863,886
Accumulated depreciation	(1,705,011)	(1,659,308)
Net real estate investments	8,430,337	8,204,578
Real estate investments and other assets held-for-sale	0	67,946
Cash and cash equivalents	9,009	6,309
Accounts receivable	16,925	15,204
Straight-line rent receivable	162,198	153,943
Receivables on construction contracts, including retentions	27,221	30,583
Deferred leasing and other costs, net of accumulated amortization	340,539	329,765
Restricted cash held in escrow for like kind exchange	0	47,682
Other escrow deposits and other assets	309,218	255,384
Total Assets	9,295,447	9,111,394
LIABILITIES AND EQUITY
Secured debt, net of deferred financing costs	63,007	64,074
Unsecured debt, net of deferred financing costs	3,469,884	3,025,977
Unsecured line of credit	0	295,000
Long-term debt, total	3,532,891	3,385,051
Liabilities related to real estate investments held-for-sale	0	7,740
Construction payables and amounts due subcontractors, including retentions	88,811	62,332
Accrued real estate taxes	80,909	76,501
Accrued interest	27,605	18,363
Other liabilities	245,940	269,806
Tenant security deposits and prepaid rents	60,150	57,153
Total Liabilities	4,036,306	3,876,946
Equity
Common equity	5,211,638	5,194,540
Limited Partners' common equity	73,649	66,874
Accumulated Other Comprehensive Loss	(30,679)	(31,568)
Total partners' equity	5,254,608	5,229,846
Noncontrolling interests	4,533	4,602
Total Equity	5,259,141	5,234,448
Total Liabilities and Equity	$ 9,295,447	$ 9,111,394