Duke Realty Limited PARTNERSHIP 10-Q 27 Oct 17 2017 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - $ / shares	9 Months Ended
	Sep. 30, 2017	Oct. 25, 2017	Dec. 31, 2016
Entity Information [Line Items]
Common shares, par value	$ 0.01		$ 0.01
Entity Registrant Name	DUKE REALTY CORPORATION
Entity Central Index Key	783,280
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Sep. 30, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding		356,140,850
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Duke Realty Limited Partnership [Member]
Entity Information [Line Items]
Entity Registrant Name	DUKE REALTY LIMITED PARTNERSHIP
Entity Central Index Key	1,003,410
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Document Type	10-Q
Document Period End Date	Sep. 30, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
ASSETS
Real Estate Assets	$ 6,091,861	$ 5,144,805
Construction in progress	441,005	303,644
Investments in and advances to unconsolidated companies	135,089	197,807
Undeveloped land	167,928	237,436
Real estate investment property, at cost, total	6,835,883	5,883,692
Accumulated depreciation	(1,159,493)	(1,042,944)
Net real estate investments	5,676,390	4,840,748
Real estate investments and other assets held-for-sale	63,604	1,324,258
Cash and cash equivalents	27,315	12,639
Accounts receivable, net of allowance	20,605	15,838
Straight-line rent receivable, net of allowance	91,045	82,554
Receivables on construction contracts, including retentions	10,343	6,159
Deferred leasing and other costs, net of accumulated amortization	279,891	258,741
Restricted cash held in escrow for like-kind exchange	512,520	40,102
Notes receivable from property sales	426,678	25,460
Other escrow deposits and assets	189,080	165,503
Total Assets	7,297,471	6,772,002
LIABILITIES AND EQUITY
Secured debt, net of deferred financing costs	312,776	383,725
Unsecured debt, net of deferred financing costs	1,814,104	2,476,752
Unsecured line of credit	5,000	48,000
Long-term debt, total	2,131,880	2,908,477
Liabilities related to real estate investments held-for-sale	2,653	56,291
Construction payables and amounts due subcontractors, including retentions	70,432	44,250
Accrued real estate taxes	83,152	59,112
Accrued interest	24,547	23,633
Other liabilities	195,147	153,846
Tenant security deposits and prepaid rents	36,285	33,100
Total Liabilities	2,544,096	3,278,709
Equity
Common shares	3,561	3,548
Additional paid-in capital	5,195,151	5,192,011
Accumulated other comprehensive income	0	682
Distributions in excess of net income	(488,328)	(1,730,423)
Total shareholders' equity	4,710,384	3,465,818
Noncontrolling interests	42,991	27,475
Total Equity	4,753,375	3,493,293
Total Liabilities and Equity	7,297,471	6,772,002
Duke Realty Limited Partnership [Member]
ASSETS
Real Estate Assets	6,091,861	5,144,805
Construction in progress	441,005	303,644
Investments in and advances to unconsolidated companies	135,089	197,807
Undeveloped land	167,928	237,436
Real estate investment property, at cost, total	6,835,883	5,883,692
Accumulated depreciation	(1,159,493)	(1,042,944)
Net real estate investments	5,676,390	4,840,748
Real estate investments and other assets held-for-sale	63,604	1,324,258
Cash and cash equivalents	27,315	12,639
Accounts receivable, net of allowance	20,605	15,838
Straight-line rent receivable, net of allowance	91,045	82,554
Receivables on construction contracts, including retentions	10,343	6,159
Deferred leasing and other costs, net of accumulated amortization	279,891	258,741
Restricted cash held in escrow for like-kind exchange	512,520	40,102
Notes receivable from property sales	426,678	25,460
Other escrow deposits and assets	189,080	165,503
Total Assets	7,297,471	6,772,002
LIABILITIES AND EQUITY
Secured debt, net of deferred financing costs	312,776	383,725
Unsecured debt, net of deferred financing costs	1,814,104	2,476,752
Unsecured line of credit	5,000	48,000
Long-term debt, total	2,131,880	2,908,477
Liabilities related to real estate investments held-for-sale	2,653	56,291
Construction payables and amounts due subcontractors, including retentions	70,432	44,250
Accrued real estate taxes	83,152	59,112
Accrued interest	24,547	23,633
Other liabilities	195,147	153,846
Tenant security deposits and prepaid rents	36,285	33,100
Total Liabilities	2,544,096	3,278,709
Equity
Common equity	4,710,384	3,465,136
Limited Partners' common equity	41,994	24,691
Accumulated other comprehensive income	0	682
Total partners' equity	4,752,378	3,490,509
Noncontrolling interests	997	2,784
Total Equity	4,753,375	3,493,293
Total Liabilities and Equity	$ 7,297,471	$ 6,772,002

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Accounts receivable, allowance	$ 1,020	$ 1,391
Straight-line rent receivable, allowance	3,655	5,268
Deferred leasing and other costs, accumulated amortization	206,242	186,798
Debt Issuance Costs, Net	$ 19,282	$ 23,052
Common shares, par value	$ 0.01	$ 0.01
Common shares, shares authorized	600,000,000	600,000,000
Common shares, shares issued	356,130,000	354,756,000
Common shares, shares outstanding	356,130,000	354,756,000
Duke Realty Limited Partnership [Member]
Accounts receivable, allowance	$ 1,020	$ 1,391
Straight-line rent receivable, allowance	3,655	5,268
Deferred leasing and other costs, accumulated amortization	$ 206,242	$ 186,798
Common equity, General Partner Units issued	356,130,000	354,756,000
Common equity, General Partner Units outstanding	356,130,000	354,756,000
Limited Partner Units issued	3,288,000	3,408,000
Limited Partner Units outstanding	3,288,000	3,408,000
Secured Debt [Member]
Debt Issuance Costs, Net	$ 699	$ 969
Secured Debt [Member] | Duke Realty Limited Partnership [Member]
Debt Issuance Costs, Net	699	969
Unsecured Debt [Member]
Debt Issuance Costs, Net	18,583	22,083
Unsecured Debt [Member] | Duke Realty Limited Partnership [Member]
Debt Issuance Costs, Net	$ 18,583	$ 22,083

Consolidated Statements of Oper

Consolidated Statements of Operations and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenues:
Rental and related revenue	$ 169,611	$ 162,322	$ 507,123	$ 480,819
General contractor and service fee revenue	25,217	19,351	58,192	68,546
Revenues, total	194,828	181,673	565,315	549,365
Expenses:
Rental expenses	16,224	16,933	46,967	54,685
Real estate taxes	28,157	26,001	81,569	75,687
General contractor and other services expenses	24,079	17,182	54,077	60,330
Depreciation and amortization	67,992	61,820	197,028	182,489
Costs and expenses, total	136,452	121,936	379,641	373,191
Other operating activities:
Equity in earnings of unconsolidated companies	1,841	12,010	58,523	37,404
Gain on dissolution of unconsolidated company	0	0	0	30,697
Promote income	0	2,212	20,007	26,299
Gain on sale of properties	21,952	82,698	93,339	137,589
Gain on land sales	5,665	1,601	8,449	2,438
Other operating expenses	(770)	(1,424)	(2,226)	(3,496)
Impairment charges	(3,622)	(3,042)	(4,481)	(15,098)
General and administrative expenses	(10,075)	(12,534)	(41,165)	(42,216)
Other Operating Activities, Net	14,991	81,521	132,446	173,617
Operating income	73,367	141,258	318,120	349,791
Other income (expenses):
Interest and other income, net	6,404	507	9,197	3,597
Interest expense	(20,835)	(27,283)	(65,401)	(87,255)
Loss on debt extinguishment	(16,568)	(6,243)	(26,104)	(8,673)
Acquisition-related activity	0	(7)	0	(82)
Income from continuing operations before income taxes	42,368	108,232	235,812	257,378
Income tax (expense) benefit	(359)	359	(7,918)	173
Income from continuing operations	42,009	108,591	227,894	257,551
Discontinued operations:
Income before gain on sales	2,563	4,249	17,747	9,062
Gain on sale of depreciable properties	120,179	319	1,229,270	485
Income tax (expense) benefit	876	0	(10,736)	0
Income from discontinued operations	123,618	4,568	1,236,281	9,547
Net income	165,627	113,159	1,464,175	267,098
Net income attributable to noncontrolling interests	(358)	(1,145)	(18,163)	(2,710)
Net income attributable to common shareholders	$ 165,269	$ 112,014	$ 1,446,012	$ 264,388
Basic net income per common share/unit:
Continuing operations attributable to common shareholders/unitholders	$ 0.12	$ 0.31	$ 0.63	$ 0.72
Discontinuing operations attributable to common shareholders/unitholders	0.34	0.01	3.43	0.03
Earnings Per Share, Basic	0.46	0.32	4.06	0.75
Diluted net income per common share/unit:
Continuing operations attributable to common shareholders/unitholders	0.12	0.31	0.63	0.72
Discontinued operations attributable to common shareholders/unitholders	0.34	0.01	3.40	0.03
Earnings Per Share, Diluted	$ 0.46	$ 0.32	$ 4.03	$ 0.75
Weighted average number of common shares/units outstanding	355,905	351,856	355,614	348,341
Weighted average number of common shares/units and potential dilutive securities	362,102	358,981	361,947	355,405
Comprehensive income:
Net income	$ 165,627	$ 113,159	$ 1,464,175	$ 267,098
Other comprehensive loss:
Amortization of interest contracts	0	(255)	(682)	(845)
Other	0	(23)	0	(23)
Total other comprehensive loss	0	(278)	(682)	(868)
Comprehensive income	165,627	112,881	1,463,493	266,230
Duke Realty Limited Partnership [Member]
Revenues:
Rental and related revenue	169,611	162,322	507,123	480,819
General contractor and service fee revenue	25,217	19,351	58,192	68,546
Revenues, total	194,828	181,673	565,315	549,365
Expenses:
Rental expenses	16,224	16,933	46,967	54,685
Real estate taxes	28,157	26,001	81,569	75,687
General contractor and other services expenses	24,079	17,182	54,077	60,330
Depreciation and amortization	67,992	61,820	197,028	182,489
Costs and expenses, total	136,452	121,936	379,641	373,191
Other operating activities:
Equity in earnings of unconsolidated companies	1,841	12,010	58,523	37,404
Gain on dissolution of unconsolidated company	0	0	0	30,697
Promote income	0	2,212	20,007	26,299
Gain on sale of properties	21,952	82,698	93,339	137,589
Gain on land sales	5,665	1,601	8,449	2,438
Other operating expenses	(770)	(1,424)	(2,226)	(3,496)
Impairment charges	(3,622)	(3,042)	(4,481)	(15,098)
General and administrative expenses	(10,075)	(12,534)	(41,165)	(42,216)
Other Operating Activities, Net	14,991	81,521	132,446	173,617
Operating income	73,367	141,258	318,120	349,791
Other income (expenses):
Interest and other income, net	6,404	507	9,197	3,597
Interest expense	(20,835)	(27,283)	(65,401)	(87,255)
Loss on debt extinguishment	(16,568)	(6,243)	(26,104)	(8,673)
Acquisition-related activity	0	(7)	0	(82)
Income from continuing operations before income taxes	42,368	108,232	235,812	257,378
Income tax (expense) benefit	(359)	359	(7,918)	173
Income from continuing operations	42,009	108,591	227,894	257,551
Discontinued operations:
Income before gain on sales	2,563	4,249	17,747	9,062
Gain on sale of depreciable properties	120,179	319	1,229,270	485
Income tax (expense) benefit	876	0	(10,736)	0
Income from discontinued operations	123,618	4,568	1,236,281	9,547
Net income	165,627	113,159	1,464,175	267,098
Net loss (income) attributable to noncontrolling interests	1,177	(14)	(4,736)	(40)
Net income attributable to common shareholders	$ 166,804	$ 113,145	$ 1,459,439	$ 267,058
Basic net income per common share/unit:
Continuing operations attributable to common shareholders/unitholders	$ 0.12	$ 0.31	$ 0.63	$ 0.72
Discontinuing operations attributable to common shareholders/unitholders	0.34	0.01	3.43	0.03
Earnings Per Share, Basic	0.46	0.32	4.06	0.75
Diluted net income per common share/unit:
Continuing operations attributable to common shareholders/unitholders	0.12	0.31	0.63	0.72
Discontinued operations attributable to common shareholders/unitholders	0.34	0.01	3.40	0.03
Earnings Per Share, Diluted	$ 0.46	$ 0.32	$ 4.03	$ 0.75
Weighted average number of common shares/units outstanding	359,206	355,351	358,921	351,840
Weighted average number of common shares/units and potential dilutive securities	362,102	358,981	361,947	355,405
Comprehensive income:
Net income	$ 165,627	$ 113,159	$ 1,464,175	$ 267,098
Other comprehensive loss:
Amortization of interest contracts	0	(255)	(682)	(845)
Other	0	(23)	0	(23)
Total other comprehensive loss	0	(278)	(682)	(868)
Comprehensive income	$ 165,627	$ 112,881	$ 1,463,493	$ 266,230

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities:
Net income	$ 1,464,175	$ 267,098
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of buildings and tenant improvements	179,918	191,554
Amortization of deferred leasing and other costs	42,996	47,093
Amortization of deferred financing costs	4,049	3,998
Straight-line rental income and expense, net	(12,021)	(10,832)
Impairment charges	4,481	15,098
Loss on debt extinguishment	26,104	8,673
Gain on dissolution of unconsolidated company	0	(30,697)
Gains on land and depreciated property sales	(1,331,058)	(140,512)
Third-party construction contracts, net	2,679	5,601
Other accrued revenues and expenses, net	24,474	21,832
Operating distributions received less than equity in earnings from unconsolidated companies	(45,298)	(24,476)
Net cash provided by operating activities	360,499	354,430
Cash flows from investing activities:
Development of real estate investments	(421,702)	(308,199)
Acquisition of real estate investments and related intangible assets	(620,869)	(16,029)
Acquisition of undeveloped land	(127,662)	(77,593)
Second generation tenant improvements, leasing costs and building improvements	(34,350)	(39,169)
Other deferred leasing costs	(22,399)	(25,949)
Other assets	(492,982)	164,450
Proceeds from land and depreciated property sales, net	2,282,419	369,118
Capital distributions from unconsolidated companies	111,635	52,514
Capital contributions and advances to unconsolidated companies	(6,303)	(54,853)
Net cash provided by investing activities	667,787	64,290
Cash flows from financing activities:
Proceeds from issuance of common shares, net	7,309	217,513
Proceeds from unsecured debt	0	375,000
Payments on unsecured debt	(691,492)	(285,339)
Payments on secured indebtedness including principal amortization	(71,154)	(352,723)
Repayments of line of credit, net	(43,000)	(71,000)
Distributions to common shareholders/unitholders	(202,770)	(187,885)
Distributions to Noncontrolling Interest, Net	(8,407)	(1,955)
Tax payments on stock-based compensation awards	(14,868)	(7,059)
Change in book overdrafts	11,245	(11,025)
Deferred financing costs	(16)	(6,569)
Redemption of Limited Partner Units	(457)	0
Net cash used for financing activities	(1,013,610)	(331,042)
Net increase in cash and cash equivalents	14,676	87,678
Cash and cash equivalents at beginning of period	12,639	22,533
Cash and cash equivalents at end of period	27,315	110,211
Noncash investing and financing activities:
Notes receivable from buyers in property sales	404,846	1,685
Conversion of Limited Partner Units to common shares	1,714	1,015
Duke Realty Limited Partnership [Member]
Cash flows from operating activities:
Net income	1,464,175	267,098
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of buildings and tenant improvements	179,918	191,554
Amortization of deferred leasing and other costs	42,996	47,093
Amortization of deferred financing costs	4,049	3,998
Straight-line rental income and expense, net	(12,021)	(10,832)
Impairment charges	4,481	15,098
Loss on debt extinguishment	26,104	8,673
Gain on dissolution of unconsolidated company	0	(30,697)
Gains on land and depreciated property sales	(1,331,058)	(140,512)
Third-party construction contracts, net	2,679	5,601
Other accrued revenues and expenses, net	24,474	21,832
Operating distributions received less than equity in earnings from unconsolidated companies	(45,298)	(24,476)
Net cash provided by operating activities	360,499	354,430
Cash flows from investing activities:
Development of real estate investments	(421,702)	(308,199)
Acquisition of real estate investments and related intangible assets	(620,869)	(16,029)
Acquisition of undeveloped land	(127,662)	(77,593)
Second generation tenant improvements, leasing costs and building improvements	(34,350)	(39,169)
Other deferred leasing costs	(22,399)	(25,949)
Other assets	(492,982)	164,450
Proceeds from land and depreciated property sales, net	2,282,419	369,118
Capital distributions from unconsolidated companies	111,635	52,514
Capital contributions and advances to unconsolidated companies	(6,303)	(54,853)
Net cash provided by investing activities	667,787	64,290
Cash flows from financing activities:
Contributions from the General Partner	7,309	217,513
Proceeds from unsecured debt	0	375,000
Payments on unsecured debt	(691,492)	(285,339)
Payments on secured indebtedness including principal amortization	(71,154)	(352,723)
Repayments of line of credit, net	(43,000)	(71,000)
Distributions to common shareholders/unitholders	(204,654)	(189,764)
Distributions to Noncontrolling Interest, Net	(6,523)	(76)
Tax payments on stock-based compensation awards	(14,868)	(7,059)
Change in book overdrafts	11,245	(11,025)
Deferred financing costs	(16)	(6,569)
Redemption of Limited Partner Units	(457)	0
Net cash used for financing activities	(1,013,610)	(331,042)
Net increase in cash and cash equivalents	14,676	87,678
Cash and cash equivalents at beginning of period	12,639	22,533
Cash and cash equivalents at end of period	27,315	110,211
Noncash investing and financing activities:
Notes receivable from buyers in property sales	404,846	1,685
Conversion of Limited Partner Units to common shares	$ 1,714	$ 1,015

Consolidated Statement of Chang

Consolidated Statement of Changes in Equity - 9 months ended Sep. 30, 2017 - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Distributions in Excess of Net Income [Member]	Non-controlling Interest [Member]	Duke Realty Limited Partnership [Member]	Duke Realty Limited Partnership [Member]Common Stock [Member]	Duke Realty Limited Partnership [Member]Limited Partners' Common Equity [Member]	Duke Realty Limited Partnership [Member]Accumulated Other Comprehensive Income (Loss) [Member]	Duke Realty Limited Partnership [Member]Non-controlling Interest [Member]	Duke Realty Limited Partnership [Member]Stockholders' Equity, Total [Member]
Beginning Balance - General Partner at Dec. 31, 2016	$ 3,493,293	$ 3,548	$ 5,192,011	$ 682	$ (1,730,423)	$ 27,475
Beginning Balance - Partnership at Dec. 31, 2016							$ 3,493,293	$ 3,465,136	$ 24,691	$ 682	$ 2,784	$ 3,490,509
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	1,464,175				1,446,012	18,163	1,464,175	1,446,012	13,427		4,736	1,459,439
Other comprehensive loss	(682)			(682)			(682)			(682)		(682)
Issuance of common shares	7,309	3	7,306
Capital contribution from the General Partner							7,309	7,309				7,309
Stock based compensation plan activity	914	9	(5,510)		(1,147)	7,562	914	(6,648)	7,562			914
Conversion/redemption of Limited Partner Units	(457)	1	1,344			(1,802)	(457)	1,345	(1,802)			(457)
Distributions to Partners							(204,654)	(202,770)	(1,884)			(204,654)
Distributions to common shareholders	(202,770)				(202,770)
Distributions to noncontrolling interests	(8,407)					(8,407)	(6,523)				(6,523)
Ending Balance - General Partner at Sep. 30, 2017	$ 4,753,375	$ 3,561	$ 5,195,151	$ 0	$ (488,328)	$ 42,991
Ending Balance - Partnership at Sep. 30, 2017							$ 4,753,375	$ 4,710,384	$ 41,994	$ 0	$ 997	$ 4,752,378

Consolidated Statement of Chan7

Consolidated Statement of Changes in Equity (Parenthetical)	9 Months Ended
	Sep. 30, 2017$ / shares
Distributions to common shareholders, per share	$ 0.57
Duke Realty Limited Partnership [Member]
Distributions to Partners, per Common Unit	$ 0.57

General Basis of Presentation (

General Basis of Presentation (Notes)	9 Months Ended
	Sep. 30, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
General Basis of Presentation	General Basis of Presentation The interim consolidated financial statements included herein have been prepared by the General Partner and the Partnership. The 2016 year-end consolidated balance sheet data included in this Report was derived from the audited financial statements in the combined Annual Report on Form 10-K of the General Partner and the Partnership for the year ended December 31, 2016 (the " 2016 Annual Report"), but does not include all disclosures required by accounting principles generally accepted in the United States of America ("GAAP"). The financial statements have been prepared in accordance with GAAP for interim financial information and in accordance with Rule 10-01 of Regulation S-X of the Securities Exchange Act of 1934, as amended. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation have been included. GAAP requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and revenue and expenses during the reporting period. Our actual results could differ from those estimates and assumptions. These financial statements should be read in conjunction with Management's Discussion and Analysis of Financial Condition and Results of Operations included herein and the consolidated financial statements and notes thereto included in the 2016 Annual Report. The General Partner was formed in 1985, and we believe that it qualifies as a REIT under the provisions of the Internal Revenue Code of 1986, as amended (the "Code"). The Partnership was formed on October 4, 1993, when the General Partner contributed all of its properties and related assets and liabilities, together with the net proceeds from an offering of additional shares of its common stock, to the Partnership. Simultaneously, the Partnership completed the acquisition of Duke Associates, a full-service commercial real estate firm operating in the Midwest whose operations began in 1972. The General Partner is the sole general partner of the Partnership, owning approximately 99.1% of the Common Units at September 30, 2017 . The remaining 0.9% of the Common Units are owned by Limited Partners. As the sole general partner of the Partnership, the General Partner has full, exclusive and complete responsibility and discretion in the day-to-day management and control of the Partnership. The General Partner and the Partnership are operated as one enterprise. The management of the General Partner consists of the same members as the management of the Partnership. As the sole general partner with control of the Partnership, the General Partner consolidates the Partnership for financial reporting purposes, and the General Partner does not have any significant assets other than its investment in the Partnership. Therefore, the assets and liabilities of the General Partner and the Partnership are substantially the same. Limited Partners have the right to redeem their Limited Partner Units, subject to certain restrictions. Pursuant to the Fifth Amended and Restated Agreement of Limited Partnership, as amended (the "Partnership Agreement"), the General Partner is obligated to redeem the Limited Partner Units in shares of its common stock, unless it determines in its reasonable discretion that the issuance of shares of its common stock could cause it to fail to qualify as a REIT. Each Limited Partner Unit shall be redeemed for one share of the General Partner's common stock, or, in the event that the issuance of shares could cause the General Partner to fail to qualify as a REIT, cash equal to the fair market value of one share of the General Partner's common stock at the time of redemption, in each case, subject to certain adjustments described in the Partnership Agreement. The Limited Partner Units are not required, per the terms of the Partnership Agreement, to be redeemed in registered shares of the General Partner. During the nine months ended September 30, 2017 , we substantially completed the disposition of our medical office portfolio (the "Medical Office Portfolio Disposition", see Note 5) and exited from the medical office product segment. As of September 30, 2017 , we owned and operated a portfolio primarily consisting of industrial properties and provided real estate services to third-party owners. Substantially all of our Rental Operations (see Note 9) are conducted through the Partnership. We conduct our Service Operations (see Note 9) through Duke Realty Services, LLC, Duke Realty Services Limited Partnership and Duke Construction Limited Partnership ("DCLP"), which are consolidated entities that are 100% owned by a combination of the General Partner and the Partnership. DCLP is

New Accounting Pronouncement (N

New Accounting Pronouncement (Notes)	9 Months Ended
	Sep. 30, 2017
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
New Accounting Pronouncements, Policy [Policy Text Block]	New Accounting Pronouncements Business Combinations In January 2017, the FASB issued ASU 2017-01, Business Combinations: Clarifying the Definition of a Business ("ASU 2017-01"). ASU 2017-01 provides revised guidance to determine when an acquisition meets the definition of a business or should be accounted for as an asset acquisition, likely resulting in more acquisitions being accounted for as asset acquisitions as opposed to business combinations. Transaction costs are capitalized for asset acquisitions while they are expensed as incurred for business combinations. ASU 2017-01 requires that when substantially all of the fair value of an acquisition is concentrated in a single identifiable asset or a group of similar identifiable assets it does not meet the definition of a business. ASU 2017-01 also revises the definition of a business to include, at a minimum, an input and a substantive process that together significantly contribute to the ability to create an output. ASU 2017-01 will be effective, on a prospective basis, for annual and interim reporting periods beginning after December 15, 2017, with early adoption permitted. We adopted ASU 2017-01 prospectively as of January 1, 2017 as permitted under the standard, which has not had a material impact to the consolidated financial statements. Restricted Cash In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows: Restricted Cash ("ASU 2016-18"). ASU 2016-18 requires entities to show the changes in the total of cash and restricted cash in the statement of cash flows. As a result, entities will no longer present transfers between cash and restricted cash in the statement of cash flows. ASU 2016-18 will be effective for us retrospectively for annual and interim reporting periods beginning after December 15, 2017 with early adoption permitted. We do not believe ASU 2016-18 will have a material impact on our consolidated financial statements. Statement of Cash Flows In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flow s ("ASU 2016-15"). ASU 2016-15 clarifies how entities should classify certain cash receipts and cash payments on the statement of cash flows and how the predominance principle should be applied when cash receipts and cash payments have aspects of more than one class of cash flows. ASU 2016-15 will be effective for us retrospectively for annual and interim reporting periods beginning after December 15, 2017 with early adoption permitted. We do not believe ASU 2016-15 will have a material impact on our consolidated financial statements. Stock Compensation In March 2016, the FASB issued ASU 2016-09, Stock Compensation: Improvements to Employee Share-Based Payment Accounting ( "ASU 2016-09" ), which simplifies certain aspects of accounting for share-based payment transactions, including income tax consequences, forfeitures and the classification of amounts paid to taxing authorities when shares are withheld to cover employee tax withholdings for certain stock based compensation plans in the statements of cash flows. ASU 2016-09 was effective for us as of January 1, 2017 and did not have a material impact on our consolidated financial statements. Leases In February 2016, the FASB issued ASU 2016-02, Leases ("ASU 2016-02"), which sets out the principles for the recognition, measurement, presentation and disclosure of leases for both parties to a contract (i.e. lessees and lessors). ASU 2016-02 supersedes existing leasing standards. ASU 2016-02 requires lessors to account for leases using an approach that is substantially equivalent to existing guidance for sales-type leases, direct financing leases and operating leases. ASU 2016-02 also requires that lessors expense certain initial direct costs, which are capitalizable under existing leasing standards, as incurred. ASU 2016-02 also specifies that payments for certain lease-related services, which are often included in lease agreements, represent "non-lease" components that will become subject to the guidance in ASU 2014-09, Revenue from Contracts with Customers, when ASU 2016-02 becomes effective. The FASB recently clarified that only new or modified leases subsequent to adoption of ASU 2016-02 will require different accounting for "non-lease" components under the guidance in ASU 2014-09. We are currently evaluating the presentation and disclosure impacts of this accounting change. ASU 2016-02 requires lessees to apply a dual approach, classifying leases as either finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase of the leased asset by the lessee. This classification will determine whether the lease expense is recognized based on an effective interest method or on a straight-line basis over the term of the lease. A lessee is also required to record a right-of-use asset and a lease liability for all leases with a term of greater than 12 months regardless of their classification. ASU 2016-02 will impact the accounting and disclosure requirements for the ground leases, and other operating leases, where we are the lessee. ASU 2016-02 will be effective for us under a modified retrospective approach for annual and interim reporting periods beginning after December 15, 2018, with early adoption permitted. A set of practical expedients for implementation, which must be elected as a package and for all leases, may also be elected. These practical expedients include relief from re-assessing lease classification at the adoption date for expired or existing leases, although a right-of-use asset and lease liability would still be recorded for such leases. We are currently assessing the method of adoption and the impact that ASU 2016-02 will have on our consolidated financial statements but have tentatively concluded that we will apply the practical expedients. Revenue Recognition In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers ("ASU 2014-09"). ASU 2014-09 is a comprehensive revenue recognition standard that will supersede nearly all existing GAAP revenue recognition guidance as well as impact the existing GAAP guidance governing the sale of non-financial assets. The standard’s core principle is that a company will recognize revenue when it satisfies performance obligations, by transferring promised goods or services to customers, in an amount that reflects the consideration to which the company expects to be entitled in exchange for fulfilling those performance obligations. In doing so, companies will need to exercise more judgment and make more estimates than under existing GAAP guidance. ASU 2014-09 also created guidance governing the sale of non-financial assets with customers and non-customers with the only difference in the treatment of these transactions being presentation in the statement of operations (revenue and expense is reported when the sale is to a customer and net gain or loss is reported when the sale is to a non-customer). Based on the nature of our business, we have concluded that our property sales represent transactions with non-customers. In February 2017, the FASB issued ASU 2017-05, Other Income: Gains and Losses from the Derecognition of Non-financial Assets (“ASU 2017-05”). ASU 2017-05 provides guidance on how entities recognize sales, including partial sales, of non-financial assets (and in-substance non-financial assets) to non-customers. ASU 2017-05 requires the seller to recognize a full gain or loss in a partial sale of non-financial assets, to the extent control is not retained. Any noncontrolling interest retained by the seller would, accordingly, be measured at fair value. Both ASU 2014-09 and ASU 2017-05 will be effective for public entities for annual and interim reporting periods beginning after December 15, 2017 and early adoption is permitted in periods ending after December 15, 2016. ASU 2014-09 and ASU 2017-05 allow for either full or modified retrospective ("cumulative effect") adoption. Both standards must be adopted concurrently. We have concluded that we will adopt both ASU 2014-09 and ASU 2017-05 using the cumulative effect method. We have evaluated each of our revenue streams under ASU 2014-09 and determined that our revenues that will be impacted by this standard primarily include construction and development fees charged to third parties, fees for

Reclassifications

Reclassifications	9 Months Ended
	Sep. 30, 2017
Disclosure Text Block [Abstract]
Reclassifications	Reclassifications Certain amounts in the accompanying consolidated financial statements for 2016 , including the change in presentation for the medical office properties determined to be discontinued operations (see Note 10) and the tax payments on stock-based compensation awards pursuant to ASU 2016-09, have been reclassified to conform to the 2017

Variable Interest Entities

Variable Interest Entities	9 Months Ended
	Sep. 30, 2017
Disclosure Text Block [Abstract]
Consolidation Policy for VIEs	Variable Interest Entities Partnership Due to the fact that the Limited Partners do not have kick out rights, or substantive participating rights, the Partnership is a variable interest entity ("VIE"). Because the General Partner holds majority ownership and exercises control over every aspect of the Partnership's operations, the General Partner has been determined as the primary beneficiary and, therefore, consolidates the Partnership. The assets and liabilities of the General Partner and the Partnership are substantially the same, as the General Partner does not have any significant assets other than its investment in the Partnership. All of the Company's debt is an obligation of the Partnership. Unconsolidated Joint Ventures We have equity interests in unconsolidated joint ventures that primarily own and operate rental properties or hold land for development. We consolidate those joint ventures that are considered to be VIEs where we are the primary beneficiary. We analyze our investments in joint ventures to determine if the joint venture is considered a VIE and would require consolidation. We (i) evaluate the sufficiency of the total equity investment at risk, (ii) review the voting rights and decision-making authority of the equity investment holders as a group and whether there are limited partners (or similar owning entities) that lack substantive participating or kick out rights and (iii) establish whether or not activities within the venture are on behalf of an investor with disproportionately few voting rights in making this VIE determination. To the extent that we own interests in a VIE and we (i) are the sole entity that has the power to direct the activities of the VIE and (ii) have the obligation or rights to absorb the VIE's losses or receive its benefits, then we would be determined to be the primary beneficiary and would consolidate the VIE. To the extent we own interests in a VIE, then at each reporting period, we re-assess our conclusions as to which, if any, party within the VIE is considered the primary beneficiary. Consolidated joint ventures that are VIEs are not significant in any period presented in these consolidated financial statements. To the extent that our joint ventures do not qualify as VIEs, they are consolidated if we control them through majority ownership interests or if we are the managing entity (general partner or managing member) and our partner does not have substantive participating rights. Control is further demonstrated by our ability to unilaterally make significant operating decisions, refinance debt and sell the assets of the joint venture without the consent of the non-managing entity and the inability of the non-managing entity to remove us from our role as the managing entity. Consolidated joint ventures that are not VIEs are not significant in any period presented in these consolidated financial statements. There were no unconsolidated joint ventures, in which we have any recognized assets or liabilities or have retained any economic exposure to loss at September 30, 2017 , that met the criteria to be considered VIEs. Our maximum loss exposure for guarantees of unconsolidated joint venture indebtedness, none of which relate to VIEs, totaled $77.6 million at September 30, 2017

Acquisitions and Dispositions

Acquisitions and Dispositions	9 Months Ended
	Sep. 30, 2017
Real Estate [Abstract]
Acquisitions and Dispositions	Acquisitions and Dispositions Acquisitions and dispositions for the periods presented were completed in accordance with our strategy to reposition our investment concentration among the product types and markets in which we operate and to increase our overall investments in quality industrial projects. With the exception of certain properties that have been sold or classified as held for sale, the results of operations for all acquired properties have been included in continuing operations within our consolidated financial statements since their respective dates of acquisition. Transaction costs related to asset acquisitions are capitalized and transaction costs related to business combinations and dispositions are expensed. Acquisitions We acquired 20 properties during the nine months ended September 30, 2017 . We determined that these 20 properties did not meet the revised definition of a business as the result of adopting ASU 2017-01 and, accordingly, we accounted for them as asset acquisitions as opposed to business combinations. The following table summarizes amounts recognized for each major class of assets (in thousands) for these acquisitions during the nine months ended September 30, 2017 : Real estate assets $ 595,127 Lease related intangible assets 32,079 Total acquired assets 627,206 Below market lease liability 1,224 Fair value of acquired net assets $ 625,982 The leases in the acquired properties had a weighted average remaining life at acquisition of approximately 7.7 years. Fair Value Measurements We determine the fair value of the individual components of real estate asset acquisitions primarily through calculating the "as-if vacant" value of a building, using an income approach, which relies significantly upon internally determined assumptions. We have determined that these estimates primarily rely upon level 3 inputs, which are unobservable inputs based on our own assumptions. The most significant assumptions used in calculating the "as-if vacant" value for acquisition activity during the nine months ended September 30, 2017 are as follows: Low High Exit capitalization rate 4.10% 5.32% Net rental rate per square foot $3.50 $10.00 An acquisition during the three months ended September 30, 2017 is located in a high performing industrial market in Northern New Jersey which is at the high end of our range of assumptions for net rental rate per square foot. Capitalized acquisition costs were insignificant and the fair value of the 20 properties acquired during the nine months ended September 30, 2017 was substantially the same as the cost of acquisition. Dispositions Dispositions of buildings (see Note 10 for the number of buildings sold as well as for their classification between continuing and discontinued operations) and undeveloped land generated net cash proceeds of $2.28 billion and $369.1 million during the nine months ended September 30, 2017 and 2016 , respectively. Dispositions for the nine months ended September 30, 2017 included 84 consolidated properties sold as part of the Medical Office Portfolio Disposition to a subsidiary of Healthcare Trust of America, Inc. ("HTA"), as well as certain other buyers, for a total sales price of $2.60 billion and a gain on sale of $1.26 billion . Seven of these consolidated properties were sold during the three months ended September 30, 2017 , for a total sales price of $250.0 million and a gain on sale of $120.4 million . The Medical Office Portfolio Disposition was executed in connection with our strategy to focus solely on the industrial real estate product type. A portion of the sale price for the Medical Office Portfolio Disposition was financed through either unsecured notes, or first mortgage interests in a portion of the sold properties, that we provided to HTA and other buyers, totaling $400.0 million , which is reflected within notes receivable from property sales in the Consolidated Balance Sheets. These instruments mature at various points through January 2020 and all bear interest at 4.0% . We concluded that the value, and the rate of interest, for these financial instruments would approximate fair value as computed using an income approach and that this determination of fair value was primarily based upon level 3 inputs. We have reviewed the creditworthiness of the borrowers and have concluded it is probable that we will collect all amounts due according to their contractual terms. In connection with the Medical Office Portfolio Disposition, during the nine months ended September 30, 2017 we received $105.3 million for the sale of our interest in two unconsolidated joint ventures whose underlying assets were comprised of medical office properties, which is reflected within Capital Distributions from Unconsolidated Companies within the Consolidated Statements of Cash Flows. We recorded $47.5 million of income related to the sale of our interests in these unconsolidated joint ventures within equity in earnings of unconsolidated companies in the Consolidated Statements of Operations and Comprehensive Income. In connection with the sale of our interest in one of these unconsolidated joint ventures, we also recorded promote income (additional incentive-based cash distributions from the joint venture, in excess of our ownership interest) of $20.0 million from the sale of our interest, which is reflected as a separate line item in the Consolidated Statements of Operations and Comprehensive Income and reflected within net cash provided by operating activities within the Consolidated Statements of Cash Flows. In connection with the sale, we recorded income tax expense totaling $19.1 million including $10.7 million classified within discontinued operations and $8.4 million

Indebtedness

Indebtedness	9 Months Ended
	Sep. 30, 2017
Debt Disclosure [Abstract]
Indebtedness	Indebtedness All debt is held directly or indirectly by the Partnership. The General Partner does not have any indebtedness, but does guarantee some of the unsecured debt of the Partnership. The following table summarizes the book value and changes in the fair value of our debt (in thousands): Book Value at 12/31/2016 Book Value at 9/30/2017 Fair Value at 12/31/2016 Payments/Payoffs Adjustments to Fair Value Fair Value at 9/30/2017 Fixed rate secured debt $ 381,894 $ 310,975 $ 415,231 $ (70,854 ) $ (12,352 ) $ 332,025 Variable rate secured debt 2,800 2,500 2,800 (300 ) — 2,500 Unsecured debt 2,498,835 1,832,687 2,568,034 (666,148 ) 7,339 1,909,225 Unsecured line of credit 48,000 5,000 48,000 (43,000 ) — 5,000 Total $ 2,931,529 $ 2,151,162 $ 3,034,065 $ (780,302 ) $ (5,013 ) $ 2,248,750 Less: Deferred financing costs 23,052 19,282 Total indebtedness as reported on the consolidated balance sheets $ 2,908,477 $ 2,131,880 Secured Debt Because our fixed rate secured debt is not actively traded in any marketplace, we utilized a discounted cash flow methodology to determine its fair value. Accordingly, we calculated fair value by applying an estimate of the current market rate to discount the debt's remaining contractual cash flows. Our estimate of a current market rate, which is the most significant input in the discounted cash flow calculation, is intended to replicate debt of similar maturity and loan-to-value relationship. The estimated rates ranged from 3.20% to 3.70% , depending on the attributes of the specific loans. The current market rates we utilized were internally estimated; therefore, we have concluded that our determination of fair value for our fixed rate secured debt was primarily based upon level 3 inputs. During the nine months ended September 30, 2017 , we repaid seven fixed rate secured loans, totaling $66.3 million , which had a weighted average stated interest rate of 5.85% . Unsecured Debt At September 30, 2017 , all of our unsecured debt bore interest at fixed rates and primarily consisted of unsecured notes that are publicly traded. We utilized broker estimates in estimating the fair value of our fixed rate unsecured debt. Our unsecured notes are thinly traded and, in certain cases, the broker estimates were not based upon comparable transactions. The broker estimates took into account any recent trades within the same series of our fixed rate unsecured debt, comparisons to recent trades of other series of our fixed rate unsecured debt, trades of fixed rate unsecured debt from companies with profiles similar to ours, as well as overall economic conditions. We reviewed these broker estimates for reasonableness and accuracy, considering whether the estimates were based upon market participant assumptions within the principal and most advantageous market and whether any other observable inputs would be more accurate indicators of fair value than the broker estimates. We concluded that the broker estimates were representative of fair value. We have determined that our estimation of the fair value of our fixed rate unsecured debt was primarily based upon level 3 inputs. The estimated trading values of our fixed rate unsecured debt, depending on the maturity and coupon rates, ranged from 99.00% to 130.00% of face value. The indentures (and related supplemental indentures) governing our outstanding series of unsecured notes also require us to comply with financial ratios and other covenants regarding our operations. We were in compliance with all such financial covenants at September 30, 2017 . During the nine months ended September 30, 2017, we repaid the following unsecured loans: • In June 2017, we repaid our $250.0 million variable rate term loan, which had a scheduled maturity date of January 2019 and bore interest at LIBOR plus 1.00% , and recognized a loss of $523,000 from the write-off of unamortized deferred financing costs. • In June 2017, we also repaid $285.6 million of senior unsecured notes that had a stated interest rate of 6.50% and an effective interest rate of 6.08% , with a scheduled maturity date of January 2018. We recognized a loss of $9.0 million including a repayment premium and the write-off of unamortized deferred financing costs. • In July 2017, we repaid $128.7 million of senior unsecured notes that had both a stated and an effective interest rate of 6.75% with a scheduled maturity date of March 2020. We recognized a loss of $16.6 million including a repayment premium and the write-off of unamortized deferred financing costs. Unsecured Line of Credit Our unsecured line of credit at September 30, 2017 is described as follows (in thousands): Description Borrowing Capacity Maturity Date Outstanding Balance at September 30, 2017 Unsecured Line of Credit - Partnership $ 1,200,000 January 1, 2019 $ 5,000 The Partnership's unsecured line of credit had an interest rate on borrowings of LIBOR plus 0.93% (equal to 2.17% for outstanding borrowings at September 30, 2017 ), and had a maturity date of January 1, 2019 , which in October 2017 was restated and amended (see Note 11). This line of credit provides us with an option to obtain borrowings from financial institutions that participate in the line at rates that may be lower than the stated interest rate, subject to certain restrictions. This line of credit contains financial covenants that require us to meet certain financial ratios and defined levels of performance, including those related to fixed charge coverage, unsecured interest expense coverage and debt-to-asset value (with asset value being defined in the Partnership's unsecured line of credit agreement). At September 30, 2017 , we were in compliance with all financial covenants under this line of credit.

Related Party Transactions

Related Party Transactions	9 Months Ended
	Sep. 30, 2017
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions We provide property management, asset management, leasing, construction and other tenant-related services to unconsolidated companies in which we have equity interests. We recorded the corresponding fees based on contractual terms that approximate market rates for these types of services and have eliminated our ownership percentage of these fees in the consolidated financial statements. The following table summarizes the fees earned from these companies, prior to the elimination of our ownership percentage (in thousands): Three Months Ended Nine Months Ended September 30, September 30, 2017 2016 2017 2016 Management fees $ 432 $ 1,035 $ 1,962 $ 3,585 Leasing fees 395 629 909 2,061 Construction and development fees 2,405 1,307 4,090 6,666

Net Income (Loss) Per Common Sh

Net Income (Loss) Per Common Share	9 Months Ended
	Sep. 30, 2017
Earnings Per Share [Abstract]
Net Income (Loss) Per Common Share	Net Income Per Common Share or Common Unit Basic net income per common share or Common Unit is computed by dividing net income attributable to common shareholders or common unitholders, less dividends or distributions on share-based awards expected to vest (referred to as "participating securities" and primarily composed of unvested restricted stock units), by the weighted average number of common shares or Common Units outstanding for the period. Diluted net income per common share is computed by dividing the sum of net income attributable to common shareholders and the noncontrolling interest in earnings allocable to Limited Partner Units (to the extent the Limited Partner Units are dilutive), less dividends or distributions on participating securities that are anti-dilutive, by the sum of the weighted average number of common shares outstanding and, to the extent they are dilutive, weighted average number of Limited Partner Units outstanding and any potential dilutive securities for the period. Diluted net income per Common Unit is computed by dividing the net income attributable to common unitholders, less dividends or distributions on participating securities that are anti-dilutive, by the sum of the weighted average number of Common Units outstanding and any potential dilutive securities for the period. The following table reconciles the components of basic and diluted net income per common share or Common Unit (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 General Partner Net income attributable to common shareholders $ 165,269 $ 112,014 $ 1,446,012 $ 264,388 Less: dividends on participating securities (444 ) (580 ) (1,527 ) (1,751 ) Basic net income attributable to common shareholders 164,825 111,434 1,444,485 262,637 Add back dividends on dilutive participating securities 444 580 1,527 1,751 Noncontrolling interest in earnings of common unitholders 1,535 1,131 13,427 2,670 Diluted net income attributable to common shareholders $ 166,804 $ 113,145 $ 1,459,439 $ 267,058 Weighted average number of common shares outstanding 355,905 351,856 355,614 348,341 Weighted average Limited Partner Units outstanding 3,301 3,495 3,307 3,499 Other potential dilutive shares 2,896 3,630 3,026 3,565 Weighted average number of common shares and potential dilutive securities 362,102 358,981 361,947 355,405 Partnership Net income attributable to common unitholders $ 166,804 $ 113,145 $ 1,459,439 $ 267,058 Less: distributions on participating securities (444 ) (580 ) (1,527 ) (1,751 ) Basic net income attributable to common unitholders $ 166,360 $ 112,565 $ 1,457,912 $ 265,307 Add back distributions on dilutive participating securities 444 580 1,527 1,751 Diluted net income attributable to common unitholders $ 166,804 $ 113,145 $ 1,459,439 $ 267,058 Weighted average number of Common Units outstanding 359,206 355,351 358,921 351,840 Other potential dilutive units 2,896 3,630 3,026 3,565 Weighted average number of Common Units and potential dilutive securities 362,102 358,981 361,947 355,405 The following table summarizes the data that is excluded from the computation of net income per common share or Common Unit as a result of being anti-dilutive (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 General Partner and Partnership Other potential dilutive shares or units: Anti-dilutive outstanding potential shares or units under fixed stock option and other stock-based compensation plans — 170 — 170

Segment Reporting

Segment Reporting	9 Months Ended
	Sep. 30, 2017
Segment Reporting [Abstract]
Segment Reporting	Segment Reporting Reportable Segments During the nine months ended September 30, 2017 , we substantially completed the Medical Office Portfolio Disposition, which resulted in all of our in-service medical office properties being classified within discontinued operations with the exception of a property that did not meet the criteria for classification as held for sale at September 30, 2017 (see Note 10). As a result of this transaction, our medical office properties are no longer presented as a separate reportable segment at September 30, 2017 , with substantially all current and prior period operating results being classified within discontinued operations. The remaining medical office property included in continuing operations no longer meets the quantitative thresholds for separate presentation, and is classified as part of our non-reportable Rental Operations. Properties that are not included in our reportable segments, because they do not by themselves meet the quantitative thresholds for separate presentation as a reportable segment, are generally referred to as non-reportable Rental Operations. Our non-reportable Rental Operations primarily include our remaining office properties and medical office property at September 30, 2017 . As of September 30, 2017 , after consideration of the Medical Office Portfolio Disposition, we had two reportable operating segments, the first consisting of the ownership and rental of industrial real estate investments. All of our industrial properties across the markets in which we operate are aggregated into one reportable segment as they have similar economic characteristics and we provide similar leasing arrangements and services to similar types of, and in many cases, the same tenants. The operations of our industrial properties, as well as our non-reportable Rental Operations, are collectively referred to as "Rental Operations." Our second reportable segment consists of various real estate services such as property management, asset management, maintenance, leasing, development, general contracting and construction management to third-party property owners and joint ventures, and is collectively referred to as "Service Operations." Our reportable segments are managed separately because each segment requires different operating strategies and management expertise. Revenues by Reportable Segment The following table shows the revenues for each of the reportable segments, as well as a reconciliation to consolidated revenues (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 Revenues Rental Operations: Industrial $ 166,344 $ 149,746 $ 485,785 $ 432,945 Non-reportable Rental Operations 2,979 10,892 20,577 40,851 Service Operations 25,217 19,351 58,192 68,546 Total segment revenues 194,540 179,989 564,554 542,342 Other revenue 288 1,684 761 7,023 Consolidated revenue from continuing operations 194,828 181,673 565,315 549,365 Discontinued operations 4,622 44,906 86,026 129,087 Consolidated revenue $ 199,450 $ 226,579 $ 651,341 $ 678,452 Supplemental Performance Measure Property-level net operating income on a cash basis ("PNOI") is the non-GAAP supplemental performance measure that we use to evaluate the performance of, and to allocate resources among, the real estate investments in the reportable and operating segments that comprise our Rental Operations. PNOI for our Rental Operations segments is comprised of rental revenues from continuing operations less rental expenses and real estate taxes from continuing operations, along with certain other adjusting items (collectively referred to as "Rental Operations revenues and expenses excluded from PNOI," as shown in the following table). Additionally, we do not allocate interest expense, depreciation expense and certain other non-property specific revenues and expenses (collectively referred to as "Non-Segment Items," as shown in the following table) to our individual operating segments. We evaluate the performance of our Service Operations reportable segment using net income or loss, as allocated to that segment ("Earnings from Service Operations"). The following table shows a reconciliation of our segment-level measures of profitability to consolidated income from continuing operations before income taxes (in thousands and excluding discontinued operations): Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 PNOI Industrial $ 121,483 $ 108,782 $ 357,018 $ 312,673 Non-reportable Rental Operations 1,292 845 3,567 4,933 PNOI, excluding all sold/held-for-sale properties 122,775 109,627 360,585 317,606 PNOI from sold/held-for-sale properties included in continuing operations 610 7,346 4,477 30,285 PNOI, continuing operations $ 123,385 $ 116,973 $ 365,062 $ 347,891 Earnings from Service Operations 1,138 2,169 4,115 8,216 Rental Operations revenues and expenses excluded from PNOI: Straight-line rental income and expense, net 4,341 3,451 9,547 6,371 Revenues related to lease buyouts 491 1,491 10,348 1,725 Amortization of lease concessions and above and below market rents (1,274 ) (672 ) (2,718 ) (2,285 ) Intercompany rents and other adjusting items (108 ) (463 ) (478 ) (1,540 ) Non-Segment Items: Equity in earnings of unconsolidated companies 1,841 12,010 58,523 37,404 Gain on dissolution of unconsolidated company — — — 30,697 Promote income — 2,212 20,007 26,299 Interest expense (20,835 ) (27,283 ) (65,401 ) (87,255 ) Depreciation and amortization expense (67,992 ) (61,820 ) (197,028 ) (182,489 ) Gain on sale of properties 21,952 82,698 93,339 137,589 Impairment charges (3,622 ) (3,042 ) (4,481 ) (15,098 ) Interest and other income, net 6,404 507 9,197 3,597 General and administrative expenses (10,075 ) (12,534 ) (41,165 ) (42,216 ) Gain on land sales 5,665 1,601 8,449 2,438 Other operating expenses (770 ) (1,424 ) (2,226 ) (3,496 ) Loss on extinguishment of debt (16,568 ) (6,243 ) (26,104 ) (8,673 ) Acquisition-related activity — (7 ) — (82 ) Other non-segment revenues and expenses, net (1,605 ) (1,392 ) (3,174 ) (1,715 ) Income from continuing operations before income taxes $ 42,368 $ 108,232 $ 235,812 $ 257,378 The most comparable GAAP measure to PNOI is income from continuing operations before income taxes. PNOI excludes expenses that materially impact our overall results of operations and, therefore, should not be considered as a substitute for income from continuing operations before income taxes or any other measures derived in accordance with GAAP. Furthermore, PNOI may not be comparable to other similarly titled measures of other companies. Assets by Reportable Segment The assets for each of the reportable segments were as follows (in thousands): September 30, December 31, Assets Rental Operations: Industrial $ 5,803,370 $ 4,828,984 Non-reportable Rental Operations 186,433 1,501,737 Service Operations 132,671 127,154 Total segment assets 6,122,474 6,457,875 Non-segment assets 1,174,997 314,127 Consolidated assets $ 7,297,471 $ 6,772,002

Real Estate Assets, Discontinue

Real Estate Assets, Discontinued Operations and Assets Held for Sale	9 Months Ended
	Sep. 30, 2017
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations and Assets Held for Sale	Real Estate Assets, Discontinued Operations and Assets Held for Sale Real Estate Assets Real estate assets, excluding assets held for sale, consisted of the following (in thousands): September 30, 2017 December 31, 2016 Buildings and tenant improvements $ 4,315,394 $ 3,752,423 Land and improvements 1,776,467 1,392,382 Real estate assets $ 6,091,861 $ 5,144,805 Discontinued Operations All of the properties included in discontinued operations are medical office properties. Because of the size of the Medical Office Portfolio Disposition, and the fact that it represented our exit from the medical office product type, we determined that the disposition represented a strategic shift that would have a major effect on our operations and financial results. As such, the consolidated in-service properties in this portfolio met the criteria to be classified within discontinued operations. As the result of its classification within discontinued operations, the in-service assets and liabilities of this portfolio are required to be presented as held for sale for all prior periods presented in our Consolidated Balance Sheets. Operating results pertaining to the properties classified within discontinued operations were reclassified to discontinued operations for all prior periods presented in our Consolidated Statements of Operations and Comprehensive Income. The following table illustrates the number of sold or held-for-sale properties included in, or excluded from, discontinued operations in this report: Held-for-Sale at September 30, 2017 Sold Year-to-Date in 2017 Sold in 2016 Total Total properties included in discontinued operations 1 80 — 81 Properties excluded from discontinued operations 1 15 32 48 Total properties sold or classified as held-for-sale 2 95 32 129 Properties sold in 2017 but excluded from discontinued operations included four properties under development, which were disposed as part of the Medical Office Portfolio Disposition, as these properties did not meet the criteria to be included in discontinued operations. For the properties that were classified in discontinued operations, we allocated interest expense to discontinued operations and have included such interest expense in computing income from discontinued operations. Interest expense allocable to discontinued operations was based upon an allocable share of our consolidated unsecured interest expense, as none of the properties included in discontinued operations were encumbered by secured debt. The allocation of unsecured interest expense to discontinued operations was based upon the gross book value of the unencumbered real estate assets included in discontinued operations as it related to the total gross book value of our unencumbered real estate assets. The following table illustrates the operational results of the buildings reflected in discontinued operations (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 Revenues $ 4,622 $ 44,906 $ 86,026 $ 129,087 Operating expenses (1,613 ) (14,466 ) (27,780 ) (41,602 ) Depreciation and amortization (37 ) (18,868 ) (25,886 ) (56,158 ) Operating income 2,972 11,572 32,360 31,327 Interest expense (409 ) (7,323 ) (14,613 ) (22,265 ) Income before gain on sales 2,563 4,249 17,747 9,062 Gain on sale of depreciable properties 120,179 319 1,229,270 485 Income from discontinued operations before income taxes 122,742 4,568 1,247,017 9,547 Income tax benefit (expense) 876 — (10,736 ) — Income from discontinued operations $ 123,618 $ 4,568 $ 1,236,281 $ 9,547 Capital expenditures on a cash basis for the nine months ended September 30, 2017 and 2016 were $20.8 million and $62.4 million , respectively, related to properties within discontinued operations. Allocation of Noncontrolling Interests - General Partner The following table illustrates the General Partner's share of the income attributable to common shareholders from continuing operations and discontinued operations, reduced by the allocation of income between continuing and discontinued operations to the noncontrolling interests (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 Income from continuing operations attributable to common shareholders $ 41,618 $ 107,491 $ 225,970 $ 254,936 Income from discontinued operations attributable to common shareholders 123,651 4,523 1,220,042 9,452 Net income attributable to common shareholders $ 165,269 $ 112,014 $ 1,446,012 $ 264,388 Allocation of Noncontrolling Interests - Partnership Substantially all of the income from discontinued operations for all periods presented in the Partnership's Consolidated Statements of Operations and Comprehensive Income is attributable to the common unitholders. Assets Held for Sale At September 30, 2017 , two in-service properties were classified as held for sale, one of which was a medical office property that met the criteria to be classified within discontinued operations. Also at September 30, 2017 , 12 acres of undeveloped land to be sold as part of the Medical Office Portfolio Disposition, was classified as held for sale and classified within continuing operations. The following table illustrates aggregate balance sheet information for all held-for-sale properties (in thousands): Held-for-Sale Properties September 30, 2017 December 31, 2016 Included in Continuing Operations Included in Discontinued Operations Total Included in Continuing Operations Included in Discontinued Operations Total Land and improvements $ 8,157 $ 13,562 $ 21,719 $ 3,631 $ 118,882 $ 122,513 Buildings and tenant improvements 10,505 40,851 51,356 37,495 1,218,468 1,255,963 Undeveloped land 4,909 — 4,909 22,657 — 22,657 Accumulated depreciation (2,553 ) (19,183 ) (21,736 ) (18,581 ) (240,685 ) (259,266 ) Deferred leasing and other costs, net 862 2,121 2,983 3,091 83,522 86,613 Other assets 591 3,782 4,373 3,334 92,444 95,778 Total assets held-for-sale $ 22,471 $ 41,133 $ 63,604 $ 51,627 $ 1,272,631 $ 1,324,258 Total liabilities held-for-sale $ 1,169 $ 1,484 $ 2,653 $ 1,661 $ 54,630 $ 56,291

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2017
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Declaration of Dividends/Distributions The General Partner's board of directors declared the following dividends/distributions at its regularly scheduled board meeting held on October 25, 2017 : Class of stock/units Quarterly Amount per Share or Unit Record Date Payment Date Common - Quarterly $0.20 November 16, 2017 November 30, 2017 Line of Credit On October 11, 2017, the Partnership amended and restated its $1.20 billion unsecured revolving credit facility, which was set to mature in January 2019 (see Note 6). The amended and restated credit facility bears interest at LIBOR plus 0.875% and matures January 2022, with two

Acquisitions and Dispositions (

Acquisitions and Dispositions (Tables)	9 Months Ended
	Sep. 30, 2017
Property, Plant and Equipment [Line Items]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]	The following table summarizes amounts recognized for each major class of assets (in thousands) for these acquisitions during the nine months ended September 30, 2017 : Real estate assets $ 595,127 Lease related intangible assets 32,079 Total acquired assets 627,206 Below market lease liability 1,224 Fair value of acquired net assets $ 625,982
Summary of Most Significant Assumptions Utilized in the Estimations [Table Text Block]	The most significant assumptions used in calculating the "as-if vacant" value for acquisition activity during the nine months ended September 30, 2017 are as follows: Low High Exit capitalization rate 4.10% 5.32% Net rental rate per square foot $3.50 $10.00

Indebtedness (Tables)

Indebtedness (Tables)	9 Months Ended
	Sep. 30, 2017
Debt Disclosure [Abstract]
Fair Value, Liabilities Measured on a Recurring Basis, Disclosure Only	The following table summarizes the book value and changes in the fair value of our debt (in thousands): Book Value at 12/31/2016 Book Value at 9/30/2017 Fair Value at 12/31/2016 Payments/Payoffs Adjustments to Fair Value Fair Value at 9/30/2017 Fixed rate secured debt $ 381,894 $ 310,975 $ 415,231 $ (70,854 ) $ (12,352 ) $ 332,025 Variable rate secured debt 2,800 2,500 2,800 (300 ) — 2,500 Unsecured debt 2,498,835 1,832,687 2,568,034 (666,148 ) 7,339 1,909,225 Unsecured line of credit 48,000 5,000 48,000 (43,000 ) — 5,000 Total $ 2,931,529 $ 2,151,162 $ 3,034,065 $ (780,302 ) $ (5,013 ) $ 2,248,750 Less: Deferred financing costs 23,052 19,282 Total indebtedness as reported on the consolidated balance sheets $ 2,908,477 $ 2,131,880
Unsecured Line of Credit	Our unsecured line of credit at September 30, 2017 is described as follows (in thousands): Description Borrowing Capacity Maturity Date Outstanding Balance at September 30, 2017 Unsecured Line of Credit - Partnership $ 1,200,000 January 1, 2019 $ 5,000

Related Party Transactions (Tab

Related Party Transactions (Tables)	9 Months Ended
	Sep. 30, 2017
Related Party Transactions [Abstract]
Schedule of Fees Earned from Related Parties	The following table summarizes the fees earned from these companies, prior to the elimination of our ownership percentage (in thousands): Three Months Ended Nine Months Ended September 30, September 30, 2017 2016 2017 2016 Management fees $ 432 $ 1,035 $ 1,962 $ 3,585 Leasing fees 395 629 909 2,061 Construction and development fees 2,405 1,307 4,090 6,666

Net Income (Loss) Per Common 22

Net Income (Loss) Per Common Share (Tables)	9 Months Ended
	Sep. 30, 2017
Earnings Per Share [Abstract]
Reconciling the Components of Basic and Diluted Net Income (Loss) per Common Share	The following table reconciles the components of basic and diluted net income per common share or Common Unit (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 General Partner Net income attributable to common shareholders $ 165,269 $ 112,014 $ 1,446,012 $ 264,388 Less: dividends on participating securities (444 ) (580 ) (1,527 ) (1,751 ) Basic net income attributable to common shareholders 164,825 111,434 1,444,485 262,637 Add back dividends on dilutive participating securities 444 580 1,527 1,751 Noncontrolling interest in earnings of common unitholders 1,535 1,131 13,427 2,670 Diluted net income attributable to common shareholders $ 166,804 $ 113,145 $ 1,459,439 $ 267,058 Weighted average number of common shares outstanding 355,905 351,856 355,614 348,341 Weighted average Limited Partner Units outstanding 3,301 3,495 3,307 3,499 Other potential dilutive shares 2,896 3,630 3,026 3,565 Weighted average number of common shares and potential dilutive securities 362,102 358,981 361,947 355,405 Partnership Net income attributable to common unitholders $ 166,804 $ 113,145 $ 1,459,439 $ 267,058 Less: distributions on participating securities (444 ) (580 ) (1,527 ) (1,751 ) Basic net income attributable to common unitholders $ 166,360 $ 112,565 $ 1,457,912 $ 265,307 Add back distributions on dilutive participating securities 444 580 1,527 1,751 Diluted net income attributable to common unitholders $ 166,804 $ 113,145 $ 1,459,439 $ 267,058 Weighted average number of Common Units outstanding 359,206 355,351 358,921 351,840 Other potential dilutive units 2,896 3,630 3,026 3,565 Weighted average number of Common Units and potential dilutive securities 362,102 358,981 361,947 355,405
Computation of Anti-Dilutive Common Share	The following table summarizes the data that is excluded from the computation of net income per common share or Common Unit as a result of being anti-dilutive (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 General Partner and Partnership Other potential dilutive shares or units: Anti-dilutive outstanding potential shares or units under fixed stock option and other stock-based compensation plans — 170 — 170

Segment Reporting (Tables)

Segment Reporting (Tables)	9 Months Ended
	Sep. 30, 2017
Segment Reporting [Abstract]
Reconciliation of Revenue from Segments to Consolidated	The following table shows the revenues for each of the reportable segments, as well as a reconciliation to consolidated revenues (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 Revenues Rental Operations: Industrial $ 166,344 $ 149,746 $ 485,785 $ 432,945 Non-reportable Rental Operations 2,979 10,892 20,577 40,851 Service Operations 25,217 19,351 58,192 68,546 Total segment revenues 194,540 179,989 564,554 542,342 Other revenue 288 1,684 761 7,023 Consolidated revenue from continuing operations 194,828 181,673 565,315 549,365 Discontinued operations 4,622 44,906 86,026 129,087 Consolidated revenue $ 199,450 $ 226,579 $ 651,341 $ 678,452
Summary of Net Operation Income	The following table shows a reconciliation of our segment-level measures of profitability to consolidated income from continuing operations before income taxes (in thousands and excluding discontinued operations): Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 PNOI Industrial $ 121,483 $ 108,782 $ 357,018 $ 312,673 Non-reportable Rental Operations 1,292 845 3,567 4,933 PNOI, excluding all sold/held-for-sale properties 122,775 109,627 360,585 317,606 PNOI from sold/held-for-sale properties included in continuing operations 610 7,346 4,477 30,285 PNOI, continuing operations $ 123,385 $ 116,973 $ 365,062 $ 347,891 Earnings from Service Operations 1,138 2,169 4,115 8,216 Rental Operations revenues and expenses excluded from PNOI: Straight-line rental income and expense, net 4,341 3,451 9,547 6,371 Revenues related to lease buyouts 491 1,491 10,348 1,725 Amortization of lease concessions and above and below market rents (1,274 ) (672 ) (2,718 ) (2,285 ) Intercompany rents and other adjusting items (108 ) (463 ) (478 ) (1,540 ) Non-Segment Items: Equity in earnings of unconsolidated companies 1,841 12,010 58,523 37,404 Gain on dissolution of unconsolidated company — — — 30,697 Promote income — 2,212 20,007 26,299 Interest expense (20,835 ) (27,283 ) (65,401 ) (87,255 ) Depreciation and amortization expense (67,992 ) (61,820 ) (197,028 ) (182,489 ) Gain on sale of properties 21,952 82,698 93,339 137,589 Impairment charges (3,622 ) (3,042 ) (4,481 ) (15,098 ) Interest and other income, net 6,404 507 9,197 3,597 General and administrative expenses (10,075 ) (12,534 ) (41,165 ) (42,216 ) Gain on land sales 5,665 1,601 8,449 2,438 Other operating expenses (770 ) (1,424 ) (2,226 ) (3,496 ) Loss on extinguishment of debt (16,568 ) (6,243 ) (26,104 ) (8,673 ) Acquisition-related activity — (7 ) — (82 ) Other non-segment revenues and expenses, net (1,605 ) (1,392 ) (3,174 ) (1,715 ) Income from continuing operations before income taxes $ 42,368 $ 108,232 $ 235,812 $ 257,378
Reportable Segments Consolidated Assets	The assets for each of the reportable segments were as follows (in thousands): September 30, December 31, Assets Rental Operations: Industrial $ 5,803,370 $ 4,828,984 Non-reportable Rental Operations 186,433 1,501,737 Service Operations 132,671 127,154 Total segment assets 6,122,474 6,457,875 Non-segment assets 1,174,997 314,127 Consolidated assets $ 7,297,471 $ 6,772,002

Real Estate Assets, Discontin24

Real Estate Assets, Discontinued Operations and Assets Held for Sale (Tables)	9 Months Ended
	Sep. 30, 2017
Discontinued Operations and Disposal Groups [Abstract]
Schedule of Real Estate Properties [Table Text Block]	Real estate assets, excluding assets held for sale, consisted of the following (in thousands): September 30, 2017 December 31, 2016 Buildings and tenant improvements $ 4,315,394 $ 3,752,423 Land and improvements 1,776,467 1,392,382 Real estate assets $ 6,091,861 $ 5,144,805
Table Illustration of Number of Properties in Discontinued Operations	The following table illustrates the number of sold or held-for-sale properties included in, or excluded from, discontinued operations in this report: Held-for-Sale at September 30, 2017 Sold Year-to-Date in 2017 Sold in 2016 Total Total properties included in discontinued operations 1 80 — 81 Properties excluded from discontinued operations 1 15 32 48 Total properties sold or classified as held-for-sale 2 95 32 129
Table Illustration of Discontinued Operations in Statement of Operations	The following table illustrates the operational results of the buildings reflected in discontinued operations (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 Revenues $ 4,622 $ 44,906 $ 86,026 $ 129,087 Operating expenses (1,613 ) (14,466 ) (27,780 ) (41,602 ) Depreciation and amortization (37 ) (18,868 ) (25,886 ) (56,158 ) Operating income 2,972 11,572 32,360 31,327 Interest expense (409 ) (7,323 ) (14,613 ) (22,265 ) Income before gain on sales 2,563 4,249 17,747 9,062 Gain on sale of depreciable properties 120,179 319 1,229,270 485 Income from discontinued operations before income taxes 122,742 4,568 1,247,017 9,547 Income tax benefit (expense) 876 — (10,736 ) — Income from discontinued operations $ 123,618 $ 4,568 $ 1,236,281 $ 9,547
Allocation of Common Shareholders' Income (Loss) Between Continuing and Discontinued Operations	The following table illustrates the General Partner's share of the income attributable to common shareholders from continuing operations and discontinued operations, reduced by the allocation of income between continuing and discontinued operations to the noncontrolling interests (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 Income from continuing operations attributable to common shareholders $ 41,618 $ 107,491 $ 225,970 $ 254,936 Income from discontinued operations attributable to common shareholders 123,651 4,523 1,220,042 9,452 Net income attributable to common shareholders $ 165,269 $ 112,014 $ 1,446,012 $ 264,388
Schedule of Discontinued Operations, Properties Held-for-Sale, Aggregate Balance Sheet Information [Table Text Block]	he following table illustrates aggregate balance sheet information for all held-for-sale properties (in thousands): Held-for-Sale Properties September 30, 2017 December 31, 2016 Included in Continuing Operations Included in Discontinued Operations Total Included in Continuing Operations Included in Discontinued Operations Total Land and improvements $ 8,157 $ 13,562 $ 21,719 $ 3,631 $ 118,882 $ 122,513 Buildings and tenant improvements 10,505 40,851 51,356 37,495 1,218,468 1,255,963 Undeveloped land 4,909 — 4,909 22,657 — 22,657 Accumulated depreciation (2,553 ) (19,183 ) (21,736 ) (18,581 ) (240,685 ) (259,266 ) Deferred leasing and other costs, net 862 2,121 2,983 3,091 83,522 86,613 Other assets 591 3,782 4,373 3,334 92,444 95,778 Total assets held-for-sale $ 22,471 $ 41,133 $ 63,604 $ 51,627 $ 1,272,631 $ 1,324,258 Total liabilities held-for-sale $ 1,169 $ 1,484 $ 2,653 $ 1,661 $ 54,630 $ 56,291

Subsequent Events (Tables)

Subsequent Events (Tables)	9 Months Ended
	Sep. 30, 2017
Subsequent Events [Abstract]
Schedule of Dividends Declared	The General Partner's board of directors declared the following dividends/distributions at its regularly scheduled board meeting held on October 25, 2017 : Class of stock/units Quarterly Amount per Share or Unit Record Date Payment Date Common - Quarterly $0.20 November 16, 2017 November 30, 2017

General Basis of Presentation26

General Basis of Presentation (Details)	9 Months Ended
	Sep. 30, 2017
Common partnership interests of DRLP Owned	99.10%
Duke Realty Limited Partnership [Member]
Limited Liability Company or Limited Partnership, Members or Limited Partners, Ownership Interest	0.90%

Variable Interest Entities (Bal

Variable Interest Entities (Balances Related to Joint Ventures) (Details) $ in Millions	Sep. 30, 2017USD ($)
Variable Interest Entity, Not Primary Beneficiary, Disclosures [Abstract]
Maximum Guarantee Exposure for Joint Venture Loans	$ 77.6

Acquisitions and Dispositions28

Acquisitions and Dispositions (Narrative) (Details)	9 Months Ended
	Sep. 30, 2017buildings
Property, Plant and Equipment [Line Items]
Number Of Real Estate Properties Acquired	20
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	7 years 8 months 12 days

Acquisitions and Dispositions29

Acquisitions and Dispositions (Summary of Allocation of Fair Value of Amounts Recognized) (Details) $ in Thousands	Sep. 30, 2017USD ($)
Property, Plant and Equipment [Line Items]
Real estate assets	$ 595,127
Lease related intangible assets	32,079
Total acquired assets	627,206
Below market lease liability	1,224
Fair value of acquired net assets	$ 625,982

Acquisitions and Dispositions30

Acquisitions and Dispositions (Summary of Significant Assumptions Utilized in Estimates) (Details)	9 Months Ended
	Sep. 30, 2017$ / sqft
Minimum [Member]
Property, Plant and Equipment [Line Items]
Exit capitalization rate	4.10%
Maximum [Member]
Property, Plant and Equipment [Line Items]
Exit capitalization rate	5.32%
Industrial [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Net rental rate per square foot	3.50
Industrial [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Net rental rate per square foot	10

Acquisitions and Dispositions D

Acquisitions and Dispositions Dispositions (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017USD ($)buildingsentities	Sep. 30, 2016USD ($)	Sep. 30, 2017USD ($)buildingsentities	Sep. 30, 2016USD ($)	Dec. 31, 2016USD ($)
Dispositions Disclosures [Line Items]
Number of Unconsolidated Joint Ventures in which Equity Interests Held | entities	1		1
Equity in earnings of unconsolidated companies	$ 1,841	$ 12,010	$ 58,523	$ 37,404
Proceeds from Sale of Real Estate Held-for-investment			$ 2,282,419	369,118
Total Properties Sold or Classified as Held for Sale | buildings			129
Promote income	0	2,212	$ 20,007	26,299
Income Tax Expense (Benefit), Continuing Operations, Discontinued Operations			19,100
Income Tax Expense (Benefit)	359	(359)	7,918	(173)
Income tax (expense) benefit	(876)	$ 0	10,736	0
Financing Receivable, Net	$ 426,678		426,678		$ 25,460
Capital distributions from unconsolidated companies			111,635	$ 52,514
Continuing Operations [Member]
Dispositions Disclosures [Line Items]
Income Tax Expense (Benefit)			$ 8,400
Medical Office Portfolio Sale [Member]
Dispositions Disclosures [Line Items]
Number of Unconsolidated Joint Ventures in which Equity Interests Held | entities	2		2
Equity in earnings of unconsolidated companies			$ 47,500
Proceeds from Sale of Real Estate Held-for-investment	$ 250,000		$ 2,600,000
Total Properties Sold or Classified as Held for Sale | buildings	7		84
Gains (Losses) on Sales of Investment Real Estate	$ 120,400		$ 1,260,000
Financing Receivable, Net	$ 400,000		$ 400,000
Debt Instrument, Interest Rate, Stated Percentage	4.00%		4.00%
Capital distributions from unconsolidated companies			$ 105,300

Indebtedness (Summary of Book V

Indebtedness (Summary of Book Value and Changes in Fair Value of Debt) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Book value	$ 2,131,880	$ 2,908,477
Fair value	2,248,750	3,034,065
Payments/Payoffs	(780,302)
Adjustments to fair value	(5,013)
Long-term Debt, Gross	2,151,162	2,931,529
Debt Issuance Costs, Net	19,282	23,052
Fixed Rate Secured Debt [Member]
Book value	310,975	381,894
Fair value	332,025	415,231
Payments/Payoffs	(70,854)
Adjustments to fair value	(12,352)
Variable Rate Secured Debt [Member]
Book value	2,500	2,800
Fair value	2,500	2,800
Payments/Payoffs	(300)
Adjustments to fair value	0
Unsecured Debt [Member]
Book value	1,832,687	2,498,835
Fair value	1,909,225	2,568,034
Payments/Payoffs	(666,148)
Adjustments to fair value	7,339
Unsecured Line of Credit DRLP [Member]
Book value	5,000	48,000
Fair value	5,000	$ 48,000
Payments/Payoffs	(43,000)
Adjustments to fair value	$ 0

Indebtedness Secured Debt (Deta

Indebtedness Secured Debt (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2017USD ($)loans	Sep. 30, 2016USD ($)
Debt Instrument [Line Items]
Repayments of Secured Debt	$ 71,154	$ 352,723
Fixed Rate Secured Debt [Member]
Debt Instrument [Line Items]
Repayments of Secured Debt	$ 66,300
number of secured loans repaid | loans	7
Repaid Debt, Weighted Average Interest Rate	5.85%
Minimum [Member] | Fixed Rate Secured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage	3.20%
Maximum [Member] | Fixed Rate Secured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage	3.70%

Indebtedness Unsecured Debt (De

Indebtedness Unsecured Debt (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Debt Instrument [Line Items]
Loss on debt extinguishment	$ (16,568,000)	$ (6,243,000)	$ (26,104,000)	$ (8,673,000)
Repayments of Unsecured Debt			691,492,000	$ 285,339,000
Long-term Debt	2,131,880,000		2,131,880,000		$ 2,908,477,000
Variable Rate UnSecured Debt [Member] [Member]
Debt Instrument [Line Items]
Loss on debt extinguishment			523,000
Long-term Debt	$ 250,000,000		$ 250,000,000
Fixed Rate Unsecured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Estimated Trading Values, Percent of Face Value, Minimum			99.00%
Debt Instrument, Estimated Trading Values, Percent of Face Value, Maximum			130.00%
Debt Instrument, Covenant Compliance			We were in compliance with all such financial covenants at
Unsecured Debt [Member]
Debt Instrument [Line Items]
Loss on debt extinguishment			$ 9,000,000
Repayments of Unsecured Debt			$ 285,600,000
Debt Instrument, Interest Rate, Stated Percentage	6.50%		6.50%
Long-term Debt	$ 1,832,687,000		$ 1,832,687,000		$ 2,498,835,000
Debt Instrument, Interest Rate, Effective Percentage	6.08%		6.08%
Unsecured notes repaid in July [Member] | Unsecured Debt [Member]
Debt Instrument [Line Items]
Loss on debt extinguishment			$ 16,600,000
Repayments of Unsecured Debt			$ 128,700,000
Debt Instrument, Interest Rate, Stated Percentage	6.75%		6.75%
London Interbank Offered Rate (LIBOR) [Member] | Variable Rate UnSecured Debt [Member] [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			1.00%

Indebtedness (Unsecured Line of

Indebtedness (Unsecured Line of Credit) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Line of credit balance	$ 5,000	$ 48,000
London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Description of Variable Rate Basis	LIBOR
Unsecured Line of Credit DRLP [Member]
Line of Credit Facility, Covenant Compliance	we were in compliance with all financial covenants under this line of credit.
Maximum Capacity	$ 1,200,000
Maturity date	Jan. 1, 2019
Line of credit balance	$ 5,000
Unsecured Line of Credit DRLP [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate	0.93%
Line of Credit Facility, Interest Rate at Period End	2.17%
Variable Rate UnSecured Debt [Member] [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate	1.00%

Related Party Transactions (Sch

Related Party Transactions (Schedule of Fees Earned from Related Parties) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Management Fees [Member]
Revenue from related party transactions	$ 432	$ 1,035	$ 1,962	$ 3,585
Leasing Fees [Member]
Revenue from related party transactions	395	629	909	2,061
Construction and Development Fees [Member]
Revenue from related party transactions	$ 2,405	$ 1,307	$ 4,090	$ 6,666

Net Income (Loss) Per Common 37

Net Income (Loss) Per Common Share Reconciling the Components of Basic and Diluted Net Income (Loss) per Common Share (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income attributable to common shareholders	$ 165,269	$ 112,014	$ 1,446,012	$ 264,388
Less: dividends on participating securities	(444)	(580)	(1,527)	(1,751)
Basic net income attributable to common shareholders	164,825	111,434	1,444,485	262,637
Add back dividends on dilutive participating securities	444	580	1,527	1,751
Noncontrolling interest in earnings of common unitholders	1,535	1,131	13,427	2,670
Diluted net income attributable to common shareholders	$ 166,804	$ 113,145	$ 1,459,439	$ 267,058
Weighted average number of common shares/units outstanding, Basic	355,905	351,856	355,614	348,341
Weighted average Limited Partner Units outstanding	3,301	3,495	3,307	3,499
Other potential dilutive shares/units	2,896	3,630	3,026	3,565
Weighted average number of common shares/units and potential dilutive securities	362,102	358,981	361,947	355,405
Duke Realty Limited Partnership [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income attributable to common shareholders	$ 166,804	$ 113,145	$ 1,459,439	$ 267,058
Less: dividends on participating securities	(444)	(580)	(1,527)	(1,751)
Basic net income attributable to common unitholders	166,360	112,565	1,457,912	265,307
Add back dividends on dilutive participating securities	444	580	1,527	1,751
Diluted net income attributable to common unitholders	$ 166,804	$ 113,145	$ 1,459,439	$ 267,058
Weighted average number of common shares/units outstanding, Basic	359,206	355,351	358,921	351,840
Other potential dilutive shares/units	2,896	3,630	3,026	3,565
Weighted average number of common shares/units and potential dilutive securities	362,102	358,981	361,947	355,405

Net Income (Loss) Per Common 38

Net Income (Loss) Per Common Share (Computation of Anti-Dilutive Common Shares) (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Stock Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities	0	170	0	170

Segment Reporting Summary of Re

Segment Reporting Summary of Revenues (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017USD ($)	Sep. 30, 2016USD ($)	Sep. 30, 2017USD ($)	Sep. 30, 2016USD ($)
Segment Reporting, Revenue Reconciling Item [Line Items]
Number of Reportable Segments			2
Rental and related revenue	$ 169,611	$ 162,322	$ 507,123	$ 480,819
General contractor and service fee revenue	25,217	19,351	58,192	68,546
Revenues	194,828	181,673	565,315	549,365
Disposal Group, Including Discontinued Operation, Revenue	4,622	44,906	86,026	129,087
Total Revenues Including Revenues Related To Discontinued Operations	199,450	226,579	651,341	678,452
Operating Segments [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	194,540	179,989	564,554	542,342
Operating Segments [Member] | Industrial [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Rental and related revenue	166,344	149,746	485,785	432,945
Operating Segments [Member] | All Other Segments [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Rental and related revenue	2,979	10,892	20,577	40,851
Operating Segments [Member] | Service Operations [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
General contractor and service fee revenue	25,217	19,351	58,192	68,546
Corporate, Non-Segment [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Rental and related revenue	288	1,684	761	7,023
Disposal Group, Including Discontinued Operation, Revenue	$ 4,622	$ 44,906	$ 86,026	$ 129,087

Segment Reporting (Summary of N

Segment Reporting (Summary of Net Operating Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Straight-line rental income and expense, net			$ 12,021	$ 10,832
Equity in earnings of unconsolidated companies	$ 1,841	$ 12,010	58,523	37,404
Gain on dissolution of unconsolidated company	0	0	0	30,697
Promote income	0	2,212	20,007	26,299
Interest expense	(20,835)	(27,283)	(65,401)	(87,255)
Depreciation and amortization expense	(67,992)	(61,820)	(197,028)	(182,489)
Gain on sale of properties	21,952	82,698	93,339	137,589
Impairment Charges	(3,622)	(3,042)	(4,481)	(15,098)
Interest and other income, net	6,404	507	9,197	3,597
General and administrative expenses	(10,075)	(12,534)	(41,165)	(42,216)
Gain on land sales	5,665	1,601	8,449	2,438
Other operating expenses	(770)	(1,424)	(2,226)	(3,496)
Loss on extinguishment of debt	(16,568)	(6,243)	(26,104)	(8,673)
Acquisition-related activity	0	(7)	0	(82)
Income from continuing operations before income taxes	42,368	108,232	235,812	257,378
Operating Segments [Member]
Property Level Net Operating Income – Cash Basis	122,775	109,627	360,585	317,606
Property Level Net Income, Cash Basis, Continuing Operations	123,385	116,973	365,062	347,891
Operating Segments [Member] | Industrial [Member]
Property Level Net Operating Income – Cash Basis	121,483	108,782	357,018	312,673
Operating Segments [Member] | All Other Segments [Member]
Property Level Net Operating Income – Cash Basis	1,292	845	3,567	4,933
Operating Segments [Member] | Service Operations [Member]
Earnings from Service Operations	1,138	2,169	4,115	8,216
Segment Reconciling Items [Member]
PNOI from sold/held-for-sale properties included in continuing operations	610	7,346	4,477	30,285
Straight-line rental income and expense, net	4,341	3,451	9,547	6,371
Revenues Related to Lease Buyouts	491	1,491	10,348	1,725
Amortization of lease concessions and above and below market rents	(1,274)	(672)	(2,718)	(2,285)
Intercompany rents and other adjusting items	(108)	(463)	(478)	(1,540)
Corporate, Non-Segment [Member]
Equity in earnings of unconsolidated companies	1,841	12,010	58,523	37,404
Gain on dissolution of unconsolidated company	0	0	0	30,697
Promote income	0	2,212	20,007	26,299
Interest expense	(20,835)	(27,283)	(65,401)	(87,255)
Depreciation and amortization expense	(67,992)	(61,820)	(197,028)	(182,489)
Gain on sale of properties	21,952	82,698	93,339	137,589
Impairment Charges	(3,622)	(3,042)	(4,481)	(15,098)
Interest and other income, net	6,404	507	9,197	3,597
General and administrative expenses	(10,075)	(12,534)	(41,165)	(42,216)
Gain on land sales	5,665	1,601	8,449	2,438
Other operating expenses	(770)	(1,424)	(2,226)	(3,496)
Loss on extinguishment of debt	(16,568)	(6,243)	(26,104)	(8,673)
Acquisition-related activity	0	(7)	0	(82)
Other non-segment revenues and expenses, net	$ (1,605)	$ (1,392)	$ (3,174)	$ (1,715)

Segment Reporting (Reportable S

Segment Reporting (Reportable Segments Consolidated Assets) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Total Assets	$ 7,297,471	$ 6,772,002
Corporate, Non-Segment [Member]
Total Assets	1,174,997	314,127
Operating Segments [Member]
Total Assets	6,122,474	6,457,875
Operating Segments [Member] | Industrial [Member]
Total Assets	5,803,370	4,828,984
Operating Segments [Member] | All Other Segments [Member]
Total Assets	186,433	1,501,737
Operating Segments [Member] | Service Operations [Member]
Total Assets	$ 132,671	$ 127,154

Real Estate Assets, Discontin42

Real Estate Assets, Discontinued Operations and Assets Held for Sale Real Estate Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Real Estate Assets [Abstract]
Investment Building and Building Improvements	$ 4,315,394	$ 3,752,423
Land and Land Improvements	1,776,467	1,392,382
Real Estate Assets	$ 6,091,861	$ 5,144,805

Real Estate Assets, Discontin43

Real Estate Assets, Discontinued Operations and Assets Held for Sale (Table Illustration of Number of Properties in Discontinued Operations) (Details) - buildings	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2017	Dec. 31, 2016
Number of properties held for sale in discontinued operations		1
Number of properties sold in discontinued operations		80	0
Total number of properties in discontinued operations		81
Continuing Operations, Number of In-service Properties Held for Sale		1
Continuing Operations, Number of Real Estate Properties Sold		15	32
Continuing Operations, Number of Real Estate Properties Sold or Classified as Held for Sale		48
Number of Real Estate Properties Held for Sale		2
Number of Real Estate Properties Sold		95	32
Total Properties Sold or Classified as Held for Sale		129
Medical Office Portfolio Sale [Member]
Continuing Operations, Number of Real Estate Properties Sold		4
Total Properties Sold or Classified as Held for Sale	7	84

Real Estate Assets, Discontin44

Real Estate Assets, Discontinued Operations and Assets Held for Sale (Table Illustration of Discontinued Operations in Income Statement) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Discontinued Operations
Payments For Second Generation Tenant Improvements Leasing Costs And Building Improvements			$ 34,350	$ 39,169
Revenues	$ 4,622	$ 44,906	86,026	129,087
Operating Expenses	(1,613)	(14,466)	(27,780)	(41,602)
Depreciation and amortization	(37)	(18,868)	(25,886)	(56,158)
Operating income	2,972	11,572	32,360	31,327
Interest expense	(409)	(7,323)	(14,613)	(22,265)
Income before gain on sales	2,563	4,249	17,747	9,062
Gain on sale of depreciable properties	120,179	319	1,229,270	485
Income from discontinued operations before income taxes	122,742	4,568	1,247,017	9,547
Income tax benefit (expense)	876	0	(10,736)	0
Income from discontinued operations	$ 123,618	$ 4,568	1,236,281	9,547
Discontinued Operations [Member]
Discontinued Operations
Payments For Second Generation Tenant Improvements Leasing Costs And Building Improvements			$ 20,800	$ 62,400

Real Estate Assets, Discontin45

Real Estate Assets, Discontinued Operations and Assets Held for Sale (Allocation of Shareholders' Income (Loss) Between Continuing and Discontinued Operations) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Discontinued Operations
Income (loss) from continuing operations attributable to common shareholders	$ 41,618	$ 107,491	$ 225,970	$ 254,936
Income (loss) from discontinued operations attributable to common shareholders	123,651	4,523	1,220,042	9,452
Net income attributable to common shareholders	$ 165,269	$ 112,014	$ 1,446,012	$ 264,388

Real Estate Assets, Discontin46

Real Estate Assets, Discontinued Operations and Assets Held for Sale (Aggregate Balance Sheet of Properties Held for Sale Included in Discontinued Operations) (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2017USD ($)abuildings	Dec. 31, 2016USD ($)
Held for Sale Assets in Continuing and Discontinued Operations
Number of Real Estate Properties Held for Sale | buildings	2
Discontinued Operation, Number of Real Estate Properties Held for Sale | buildings	1
Area of Land | a	12
Land and Land Improvements Held-for-Sale	$ 21,719	$ 122,513
Buildings and Tenant Improvements Held-for-Sale	51,356	1,255,963
Inventory, Land Held-for-sale	4,909	22,657
Accumulated Depreciation of Assets Held-for-Sale	(21,736)	(259,266)
Lease Related Assets, Held for Sale	2,983	86,613
Other assets	4,373	95,778
Total assets held-for-sale	63,604	1,324,258
Total liabilities held-for-sale	2,653	56,291
Continuing Operations [Member]
Held for Sale Assets in Continuing and Discontinued Operations
Land and Land Improvements Held-for-Sale	8,157	3,631
Buildings and Tenant Improvements Held-for-Sale	10,505	37,495
Inventory, Land Held-for-sale	4,909	22,657
Accumulated Depreciation of Assets Held-for-Sale	(2,553)	(18,581)
Lease Related Assets, Held for Sale	862	3,091
Other assets	591	3,334
Total assets held-for-sale	22,471	51,627
Total liabilities held-for-sale	1,169	1,661
Discontinued Operations [Member]
Held for Sale Assets in Continuing and Discontinued Operations
Land and Land Improvements Held-for-Sale	13,562	118,882
Buildings and Tenant Improvements Held-for-Sale	40,851	1,218,468
Inventory, Land Held-for-sale	0	0
Accumulated Depreciation of Assets Held-for-Sale	(19,183)	(240,685)
Lease Related Assets, Held for Sale	2,121	83,522
Other assets	3,782	92,444
Total assets held-for-sale	41,133	1,272,631
Total liabilities held-for-sale	$ 1,484	$ 54,630

Subsequent Events (Details)

Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	9 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Oct. 11, 2017
Subsequent Event [Member]
Subsequent Event [Line Items]
Line Of Credit Facility Maturity Date Extensions	2
Subsequent Event [Member] | Common Stock [Member]
Subsequent Event [Line Items]
Common stock dividends declared per share	$ 0.20
Record date	Nov. 16, 2017
Dividends Payable, Date to be Paid	Nov. 30, 2017
London Interbank Offered Rate (LIBOR) [Member]
Subsequent Event [Line Items]
Debt Instrument, Description of Variable Rate Basis		LIBOR
London Interbank Offered Rate (LIBOR) [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Debt Instrument, Description of Variable Rate Basis	LIBOR
Unsecured Line of Credit DRLP [Member]
Subsequent Event [Line Items]
Line of Credit Facility, Current Borrowing Capacity		$ 1,200,000
Unsecured Line of Credit DRLP [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Line of Credit Facility, Current Borrowing Capacity			$ 1,200,000
Unsecured Line of Credit DRLP [Member] | London Interbank Offered Rate (LIBOR) [Member]
Subsequent Event [Line Items]
Debt Instrument, Basis Spread on Variable Rate		0.93%
Unsecured Line of Credit DRLP [Member] | London Interbank Offered Rate (LIBOR) [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.875%