LXP Industrial Trust (LXP) 10-K 26 Feb 14 2013 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2013	Feb. 25, 2014	Jun. 28, 2013
Entity Information [Line Items]	'	'	'
Entity Registrant Name	'LEXINGTON REALTY TRUST	'	'
Entity Central Index Key	'0000910108	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Well-known Seasoned User	'Yes	'	'
Entity Voluntary Filers	'No	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Filer Category	'Large Accelerated Filer	'	'
Entity Public Float	'	'	$2,453,413,854
Entity Common Stock, Shares Outstanding	'	229,236,491	'
Document Fiscal Year Focus	'2013	'	'
Document Fiscal Period Focus	'FY	'	'
Document Type	'10-K	'	'
Amendment Flag	'false	'	'
Document Period Ended Date	31-Dec-13	'	'

CONSOLIDATED_BALANCE_SHEETS

CONSOLIDATED BALANCE SHEETS (USD $)	Dec. 31, 2013		Dec. 31, 2012
In Thousands, unless otherwise specified
Real estate, at cost:	'		'
Real estate, at cost	$3,812,294		$3,564,466
Real estate - intangible assets	762,157		685,914
Investments in real estate under construction	74,350		65,122
Real estate, gross	4,648,801		4,315,502
Less: accumulated depreciation and amortization	1,223,381	[1]	1,150,417	[1]
Real estate, net	3,425,420		3,165,085
Cash and cash equivalents	77,261		34,024
Restricted cash	19,953		26,741
Investment in and advances to non-consolidated entities	18,442		27,129
Deferred expenses (net of accumulated amortization of $28,587 in 2013 and $24,402 in 2012)	66,827		57,549
Loans receivable, net	99,443		72,540
Rent receivable - current	10,087		7,355
Rent receivable – deferred	19,473		0
Other assets	35,375		27,780
Total assets	3,772,281		3,418,203
Liabilities:	'		'
Mortgages and notes payable	1,197,489		1,415,961
Credit facility borrowings	48,000		0
Term loans payable	406,000		255,000
Senior notes payable	247,707		0
Convertible notes payable	27,491		78,127
Trust preferred securities	129,120		129,120
Dividends payable	40,018		31,351
Accounts payable and other liabilities	39,642		70,367
Accrued interest payable	9,627		11,980
Deferred revenue - including below market leases (net of accumulated accretion of $40,740 in 2013 and $44,706 in 2012)	69,667		79,908
Prepaid rent	18,037		13,224
Total liabilities	2,232,798		2,085,038
Commitments and contingencies	'		'
Equity:	'		'
Common shares, par value $0.0001 per share; authorized 400,000,000 shares, 228,663,022 and 178,616,664 shares issued and outstanding in 2013 and 2012, respectively	23		18
Additional paid-in-capital	2,717,787		2,212,949
Accumulated distributions in excess of net income	-1,300,527		-1,143,803
Accumulated other comprehensive income (loss)	4,439		-6,224
Total shareholders’ equity	1,515,738		1,306,730
Noncontrolling interests	23,745		26,435
Total equity	1,539,483		1,333,165
Total liabilities and equity	3,772,281		3,418,203
Series C [Member] | Convertible Preferred Stock [Member]	'		'
Equity:	'		'
Preferred shares, value	94,016		94,016
Series D [Member] | Cumulative Redeemable [Member]	'		'
Equity:	'		'
Preferred shares, value	$0		$149,774
[1]	Includes accumulated amortization of real estate intangible assets of $447,764 and $412,349 in 2013 and 2012, respectively. The estimated amortization of the above real estate intangible assets for the next five years is $44,003 in 2014, $34,932 in 2015, $28,640 in 2016, $25,239 in 2017 and $21,498 in 2018.

CONSOLIDATED_BALANCE_SHEETS_Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, except Share data, unless otherwise specified
Assets:	'	'
Accumulated amortization on Deferred expenses	$28,587	$24,402
Liabilities:	'	'
Accretion on Deferred revenue	40,740	44,706
Equity:	'	'
Preferred shares, par value (in dollars per share)	$0.00	$0.00
Preferred shares, authorized shares (in shares)	100,000,000	100,000,000
Common shares, par value (in dollars per share)	$0.00	$0.00
Common shares, authorized shares (in shares)	400,000,000	400,000,000
Common shares, shares issued (in shares)	228,663,022	178,616,664
Common shares, shares outstanding (in shares)	228,663,022	178,616,664
Series C [Member] | Cumulative Convertible [Member]	'	'
Equity:	'	'
Preferred Stock Aggregate Liquidation Preference Value	96,770	96,770
Preferred shares, convertible preferred, shares issued (in shares)	1,935,400	1,935,400
Preferred shares, redeemable preferred, shares outstanding (in shares)	1,935,400	1,935,400
Series D [Member] | Cumulative Redeemable [Member]	'	'
Equity:	'	'
Preferred Stock Aggregate Liquidation Preference Value	$155,000	$155,000
Preferred shares, convertible preferred, shares issued (in shares)	6,200,000	6,200,000
Preferred shares, redeemable preferred, shares outstanding (in shares)	6,200,000	6,200,000

CONSOLIDATED_STATEMENTS_OF_OPE

CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Gross revenues:	'		'		'
Rental	$366,591		$299,956		$261,117
Advisory and incentive fees	855		1,806		2,012
Tenant reimbursements	30,994		28,418		29,169
Total gross revenues	398,440		330,180		292,298
Expense applicable to revenues:	'		'		'
Depreciation and amortization	-174,272		-152,296		-145,712
Property operating	-62,195		-56,043		-54,395
General and administrative	-28,973		-23,933		-22,190
Non-operating income	8,515		6,825		12,985
Interest and amortization expense	-91,271		-93,677		-101,401
Debt satisfaction gains (charges), net	-25,397		-9,480		45
Change in value of forward equity commitment	0		0		2,030
Gain on acquisition	0		167,864		0
Litigation reserve	0		-2,775		0
Impairment charges and loan loss	-35,579		-4,262		-17,008
Income (loss) before benefit (provision) for income taxes, equity in earnings (losses) of non-consolidated entities and discontinued operations	-10,732		162,403		-33,348
Benefit (provision) for income taxes	-3,259		-940		882
Equity in earnings (losses) of non-consolidated entities	-157		21,531		30,334
Income (loss) from continuing operations	-14,148		182,994		-2,132
Discontinued operations:	'		'		'
Income (loss) from discontinued operations	-761		-5,599		6,951
Provision for income taxes	-1,735		-163		-113
Debt satisfaction gains (charges), net	8,955		-178		-606
Gains on sales of properties	24,472		13,291		6,557
Impairment charges	-12,920		-5,707		-100,435
Total discontinued operations	18,011		1,644		-87,646
Net income (loss)	3,863		184,638		-89,778
Less net (income) loss attributable to noncontrolling interests	-2,233		-4,322		10,194
Net income (loss) attributable to Lexington Realty Trust shareholders	1,630		180,316		-79,584
Dividends attributable to preferred shares	'		'		'
Allocation to participating securities	656		1,087		368
Net income (loss) attributable to common shareholders	-14,089		156,821		-103,721
Income (loss) per common share – basic:	'		'		'
Income (loss) from continuing operations, basic (usd per share)	($0.15)		$0.99		($0.20)
Income (loss) from discontinued operations, basic (usd per share)	$0.08		$0		($0.48)
Net income (loss) attributable to common shareholders, basic (usd per share)	($0.07)		$0.99		($0.68)
Weighted-average common shares outstanding – basic	209,797,238		159,109,424		152,473,336
Income (loss) per common share – diluted:	'		'		'
Income (loss) from continuing operations, diluted (usd per share)	($0.15)		$0.93		($0.20)
Income (loss) from discontinued operations, diluted (usd per share)	$0.08		$0		($0.48)
Net income (loss) attributable to common shareholders, diluted (usd per share)	($0.07)		$0.93		($0.68)
Weighted-average common shares outstanding – diluted	209,797,238		179,659,826		152,473,336
Amounts attributable to common shareholders:	'		'		'
Income (loss) from continuing operations	-31,777		156,709		-30,194
Income (loss) from discontinued operations	17,688		112		-73,527
Net income (loss) attributable to common shareholders	-14,089		156,821		-103,721
Series B [Member]	'		'		'
Dividends attributable to preferred shares	'		'		'
Dividends attributable to preferred shares	0		-2,298		-6,149
Deemed dividend	0	[1]	-2,346	[1]	-95	[1]
Series C [Member]	'		'		'
Dividends attributable to preferred shares	'		'		'
Dividends attributable to preferred shares	-6,290		-6,290		-6,655
Redemption discount – Series C	0	[1]	229	[1]	833	[1]
Series D [Member]	'		'		'
Dividends attributable to preferred shares	'		'		'
Dividends attributable to preferred shares	-3,543		-11,703		-11,703
Deemed dividend	($5,230)	[1]	$0	[1]	$0	[1]
[1]	Represents the difference between the redemption/repurchase cost and historical GAAP cost. Accordingly, net income (loss) was adjusted for the deemed dividends/deemed negative dividends to arrive at net income (loss) attributable to common shareholders.

CONSOLIDATED_STATEMENTS_OF_COM

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net income (loss)	$3,863	$184,638	($89,778)
Other comprehensive income (loss):	'	'	'
Change in unrealized gain (loss) on interest rate swaps, net	10,663	-8,162	2,044
Other comprehensive income (loss)	10,663	-8,162	2,044
Comprehensive income (loss)	14,526	176,476	-87,734
Comprehensive (income) loss attributable to noncontrolling interests	-2,233	-4,322	10,194
Comprehensive income (loss) attributable to Lexington Realty Trust shareholders	$12,293	$172,154	($77,540)

CONSOLIDATED_STATEMENT_OF_CHAN

CONSOLIDATED STATEMENT OF CHANGES IN EQUITY (USD $)	Total	Preferred Shares [Member]	Common Stock [Member]	Additional Paid-in-Capital [Member]	Accumulated Distributions in Excess of Net Income [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Non-controlling Interests [Member]
In Thousands, except Share data, unless otherwise specified
Balance at Dec. 31, 2010	$1,304,901	$327,867	$15	$1,937,942	($1,036,790)	($106)	$75,973
Balance (in shares) at Dec. 31, 2010	'	11,455,200	146,552,589	'	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'	'
Redemption of noncontrolling OP units for common shares	'	'	'	2,187	'	'	-2,187
Redemption of noncontrolling OP units for common shares (in shares)	'	'	398,927	'	'	'	'
Repurchase of common shares	-31,916	'	'	-31,916	'	'	'
Repurchase of common shares (in shares)	'	'	-3,974,645	'	'	'	'
Repurchase of preferred shares	-15,456	-16,194	'	'	738	'	'
Repurchase of preferred shares (in shares)	'	-544,126	'	'	'	'	'
Contributions from noncontrolling interests	2	'	'	'	'	'	2
Exercise of employee common share options, net	-221	'	'	-221	'	'	'
Exercise of employee common share options, net (in shares)	'	'	250,355	'	'	'	'
Obtained control of noncontrolling investment	574	'	'	'	'	'	574
Forfeiture of employee performance common shares	69	'	'	'	69	'	'
Forfeiture of employee performance common shares (in shares)	'	'	-10,140	'	'	'	'
Issuance of common shares and deferred compensation amortization, net	102,416	'	'	102,416	'	'	'
Issuance of common shares and deferred compensation amortization, net (in shares)	'	'	11,721,265	'	'	'	'
Dividends/distributions	-102,874	'	'	'	-97,063	'	-5,811
Comprehensive income (loss):	'	'	'	'	'	'	'
Net income (loss)	-89,778	'	'	'	-79,584	'	-10,194
Other comprehensive income:	'	'	'	'	'	'	'
Other comprehensive income	2,044	'	'	'	'	2,044	'
Balance at Dec. 31, 2011	1,170,203	311,673	15	2,010,850	-1,212,630	1,938	58,357
Balance (in shares) at Dec. 31, 2011	'	10,911,074	154,938,351	'	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'	'
Redemption of noncontrolling OP units for common shares	'	'	'	1,343	'	'	-1,343
Redemption of noncontrolling OP units for common shares (in shares)	'	'	257,427	'	'	'	'
Repurchase of preferred shares	-70,000	-67,883	'	'	-2,117	'	'
Repurchase of preferred shares (in shares)	'	-2,775,674	'	'	'	'	'
Contributions from noncontrolling interests	1,262	'	'	'	'	'	1,262
Issuance of common shares upon conversion of Convertible Notes	33,770	'	1	33,769	'	'	'
Issuance of common shares upon conversion of convertible notes (in shares)	4,487,060	'	4,487,060	'	'	'	'
Exercise of employee common share options, net	-534	'	'	-534	'	'	'
Exercise of employee common share options, net (in shares)	'	'	110,944	'	'	'	'
Issuance of common shares and deferred compensation amortization, net	167,523	'	2	167,521	'	'	'
Issuance of common shares and deferred compensation amortization, net (in shares)	'	'	18,822,882	'	'	'	'
Deconsolidation of consolidated joint venture	-782	'	'	'	'	'	-782
Dividends/distributions	-144,753	'	'	'	-109,372	'	-35,381
Comprehensive income (loss):	'	'	'	'	'	'	'
Net income (loss)	184,638	'	'	'	180,316	'	4,322
Other comprehensive income:	'	'	'	'	'	'	'
Other comprehensive income	-8,162	'	'	'	'	-8,162	'
Balance at Dec. 31, 2012	1,333,165	243,790	18	2,212,949	-1,143,803	-6,224	26,435
Balance (in shares) at Dec. 31, 2012	'	8,135,400	178,616,664	'	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'	'
Redemption of noncontrolling OP units for common shares	'	'	'	1,053	'	'	-1,053
Redemption of noncontrolling OP units for common shares (in shares)	'	'	202,241	'	'	'	'
Repurchase of preferred shares	-155,004	-149,774	'	'	-5,230	'	'
Acquisition of consolidated joint venture partners' equity interest	-8,918	'	'	'	-8,918	'	'
Repurchase of preferred shares (in shares)	'	-6,200,000	'	'	'	'	'
Issuance of common shares upon conversion of Convertible Notes	60,686	'	1	60,685	'	'	'
Issuance of common shares upon conversion of convertible notes (in shares)	7,944,673	'	7,944,673	'	'	'	'
Exercise of employee common share options, net	-2,289	'	'	-2,289	'	'	'
Exercise of employee common share options, net (in shares)	'	'	955,478	'	'	'	'
Forfeiture of employee common shares	-20	'	'	-20	'	'	'
Forfeiture of employee common shares (in shares)	'	'	-3,571	'	'	'	'
Issuance of common shares and deferred compensation amortization, net	440,835	'	4	440,831	'	'	'
Issuance of common shares and deferred compensation amortization, net (in shares)	'	'	40,947,537	'	'	'	'
Dividends/distributions	-148,076	'	'	'	-144,206	'	-3,870
Comprehensive income (loss):	'	'	'	'	'	'	'
Net income (loss)	3,863	'	'	'	1,630	'	2,233
Other comprehensive income:	'	'	'	'	'	'	'
Other comprehensive income	10,663	'	'	'	'	10,663	'
Balance at Dec. 31, 2013	$1,539,483	$94,016	$23	$2,717,787	($1,300,527)	$4,439	$23,745
Balance (in shares) at Dec. 31, 2013	'	1,935,400	228,663,022	'	'	'	'

CONSOLIDATED_STATEMENTS_OF_CAS

CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:	'	'	'
Net income (loss)	$3,863	$184,638	($89,778)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:	'	'	'
Depreciation and amortization	183,833	171,969	168,288
Gain on acquisition	0	-167,864	0
Gains on sales of properties	-24,472	-13,291	-6,557
Debt satisfaction charges, net	3,989	8,062	311
Impairment charges and loan losses	48,499	9,969	117,443
Straight-line rents	-23,538	-7,372	-1,763
Other non-cash (income) expense, net	5,248	-1,139	-6,364
Equity in earnings (losses) of non-consolidated entities	157	-21,531	-30,334
Distributions of accumulated earnings from non-consolidated entities, net	918	7,498	11,549
Deferred taxes, net	752	-186	-1,799
Increase (decrease) in accounts payable and other liabilities	6,223	-598	1,589
Change in rent receivable and prepaid rent, net	4,420	-1,325	19,929
Decrease in accrued interest payable	-1,058	-2,473	-970
Other adjustments, net	-2,530	-2,547	-1,407
Net cash provided by operating activities:	206,304	163,810	180,137
Cash flows from investing activities:	'	'	'
Investment in real estate, including intangible assets	-447,571	-98,083	-25,811
Investment in real estate under construction	106,009	113,262	69,755
Capital expenditures	-48,822	-49,952	-32,426
Acquisition of remaining interest in NLS, net of cash acquired of $8,107	0	-1,331	0
Net proceeds from sale of properties	75,519	155,240	124,039
Principal payments received on loans receivable	2,056	6,841	46,867
Investment in loans receivable	-60,727	-11,470	-32,591
Investments in and advances to non-consolidated entities, net	-8,193	-20,172	-19,940
Proceeds from sale of interest in non-consolidated entity	0	7,000	0
Distributions from non-consolidated entities in excess of accumulated earnings	15,603	351	5,900
Increase in deferred leasing costs	-12,060	-14,826	-15,870
Change in escrow deposits and restricted cash	-7,141	5,710	-3,405
Real estate deposits	-238	-149	-1,821
Net cash used in investing activities	-597,583	-134,103	-24,813
Cash flows from financing activities:	'	'	'
Dividends to common and preferred shareholders	-135,539	-103,295	-94,861
Repurchase of exchangeable notes	0	-62,150	0
Proceeds from senior notes	247,565	0	0
Conversion of convertible notes	-3,270	-2,427	0
Principal amortization payments	-34,446	-31,252	-31,068
Principal payments on debt, excluding normal amortization	-347,122	-288,094	-105,266
Change in revolving credit facility borrowing, net	48,000	0	0
Increase in deferred financing costs	-12,307	-6,431	-4,214
Proceeds of mortgages and notes payable	253,500	121,000	15,000
Proceeds from term loans	151,000	255,000	0
Contributions from noncontrolling interests	0	889	2
Cash distributions to noncontrolling interests	-3,870	-35,381	-5,811
Purchase of a noncontrolling interest	8,918	0	0
Repurchase of preferred shares	-155,004	-70,000	-15,456
Payments on forward equity commitment, net	0	0	-2,313
Issuance of common shares, net	434,927	162,747	99,730
Net cash provided by (used in) financing activities	434,516	-59,394	-144,257
Change in cash and cash equivalents	43,237	-29,687	11,067
Cash and cash equivalents, at beginning of year	34,024	63,711	52,644
Cash and cash equivalents, at end of year	$77,261	$34,024	$63,711

CONSOLIDATED_STATEMENTS_OF_CAS1

CONSOLIDATED STATEMENTS OF CASH FLOWS CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2012
Statement of Cash Flows [Abstract]	'
Cash acquired in acquisition of remaining interest in NLS	$8,107

The_Company

The Company	12 Months Ended
	Dec. 31, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
The Company	'
	The Company
	Lexington Realty Trust (together with its consolidated subsidiaries, except when the context only applies to the parent entity, the “Company”) is a self-managed and self-administered Maryland statutory real estate investment trust (“REIT”) that owns a diversified portfolio of equity and debt investments in single-tenant properties and land. The Company also provides investment advisory and asset management services to investors in the single-tenant area. As of December 31, 2013 and 2012, the Company had equity ownership interests in approximately 220 consolidated properties located in 41 states. A majority of the real properties in which the Company had an interest and all land interests are generally subject to net leases or similar leases where the tenant pays all or substantially all of the cost, including cost increases, for real estate taxes, insurance, utilities and ordinary maintenance of the property. However, certain leases provide that the landlord is responsible for certain operating expenses.
	The Company believes it has qualified as a REIT under the Internal Revenue Code of 1986, as amended (the “Code”). Accordingly, the Company will not be subject to federal income tax, provided that distributions to its shareholders equal at least the amount of its REIT taxable income as defined under the Code. The Company is permitted to participate in certain activities from which it was previously precluded in order to maintain its qualification as a REIT, so long as these activities are conducted in entities which elect to be treated as taxable REIT subsidiaries (“TRS”) under the Code. As such, the TRS are subject to federal income taxes on the income from these activities.
	The Company conducts its operations either directly or indirectly through (1) property owner subsidiaries and lender subsidiaries, (2) operating partnerships in which the Company is the sole unit holder of the general partner and the sole unit holder of the limited partner that holds a majority of the limited partner interests (“OP units”) or (3) Lexington Realty Advisors, Inc. (“LRA”), a wholly-owned TRS. As of December 31, 2013, the Company controlled one operating partnership: Lepercq Corporate Income Fund L.P. (“LCIF”). On December 30, 2013, another operating partnership, Lepercq Corporate Income Fund II L.P. (“LCIF II”), was merged with and into LCIF, with LCIF as the surviving entity. Property owner subsidiaries are landlords under leases for properties in which the Company has an interest and/or borrowers under loan agreements secured by properties in which the Company has an interest and lender subsidiaries are lenders under loan agreements where the Company made an investment in a loan asset, but in all cases are separate and distinct legal entities.

Summary_of_Significant_Account

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Summary of Significant Accounting Policies	'
	Summary of Significant Accounting Policies
	Basis of Presentation and Consolidation. The Company's consolidated financial statements are prepared on the accrual basis of accounting in accordance with U.S. generally accepted accounting principles (“GAAP”). The financial statements reflect the accounts of the Company and its consolidated subsidiaries. The Company consolidates its wholly-owned subsidiaries, partnerships and joint ventures which it controls (i) through voting rights or similar rights or (ii) by means other than voting rights if the Company is the primary beneficiary of a variable interest entity ("VIE"). Entities which the Company does not control and entities which are VIEs in which the Company is not the primary beneficiary are accounted for under appropriate GAAP.
	If an investment is determined to be a VIE, the Company performs an analysis to determine if the Company is the primary beneficiary of the VIE. GAAP requires a VIE to be consolidated by its primary beneficiary. The primary beneficiary is the party that has a controlling financial interest in an entity. In order for a party to have a controlling financial interest in an entity, it must have (1) the power to direct the activities of a VIE that most significantly impact the entity's economic performance and (2) the obligation to absorb losses or the right to receive benefits of an entity that could potentially be significant to the VIE.
	Consolidated Variable Interest Entity. The Company's consolidated VIE was determined to be a VIE primarily because the entity's equity holders' obligation to absorb losses is protected. The Company determined that it was the primary beneficiary of the VIE because it has a controlling financial interest in the entity.
	The Company's wholly-owned entity which owns an office building in Greenville, South Carolina is a VIE and is consolidated by the Company. The tenant has an option to purchase the property on December 31, 2014 at fair market value, but not for less than $10,710 and not for greater than $11,550. If the tenant does not exercise the purchase option, the Company has the right to require the tenant to purchase the property for $10,710.
	Non-Consolidated Variable Interest Entities. At December 31, 2013 and 2012, the Company held variable interests in certain non-consolidated VIEs; however, the Company was not the primary beneficiary of these VIEs as the Company does not have a controlling financial interest in the entities. The Company has certain acquisition commitments and/ or acquisition, development and construction arrangements with VIEs. The Company is obligated to fund certain amounts as discussed in note 4.
	Earnings Per Share. Basic net income (loss) per share is computed by dividing net income (loss) reduced by preferred dividends and amounts allocated to certain non-vested share-based payment awards, if applicable, by the weighted-average number of common shares outstanding during the period. Diluted net income (loss) per share amounts are similarly computed but include the effect, when dilutive, of in-the-money common share options, OP units and put options of certain convertible securities.
	Use of Estimates. Management has made a number of significant estimates and assumptions relating to the reporting of assets and liabilities, the disclosure of contingent assets and liabilities and the reported amounts of revenues and expenses to prepare these consolidated financial statements in conformity with GAAP. These estimates and assumptions are based on management's best estimates and judgment. Management evaluates its estimates and assumptions on an ongoing basis using historical experience and other factors, including the current economic environment. The current economic environment has increased the degree of uncertainty inherent in these estimates and assumptions. Management adjusts such estimates when facts and circumstances dictate. The most significant estimates made include the recoverability of accounts receivable, allocation of property purchase price to tangible and intangible assets acquired and liabilities assumed, the determination of VIEs and which entities should be consolidated, the determination of impairment of long-lived assets, loans receivable and equity method investments, valuation of derivative financial instruments and the useful lives of long-lived assets. Actual results could differ materially from those estimates.
	Fair Value Measurements. The Company follows the guidance in the Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") Topic 820, Fair Value Measurements and Disclosures ("Topic 820"), to determine the fair value of financial and non-financial instruments. Topic 820 defines fair value, establishes a framework for measuring fair value in GAAP and expands disclosures about fair value measurements. Topic 820 establishes a fair value hierarchy that prioritizes observable and unobservable inputs used to measure fair value into three levels: Level 1 - quoted prices (unadjusted) in active markets that are accessible at the measurement date for assets or liabilities; Level 2 - observable prices that are based on inputs not quoted in active markets, but corroborated by market data; and Level 3 - unobservable inputs, which are used when little or no market data is available. The fair value hierarchy gives the highest priority to Level 1 inputs and the lowest priority to Level 3 inputs. In determining fair value, the Company utilizes valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs to the extent possible, as well as considering counterparty credit risk. The Company has formally elected to apply the portfolio exception within Topic 820 with respect to measuring counterparty risk for all of its derivative transactions subject to master netting arrangements.
	Revenue Recognition. The Company recognizes lease revenue on a straight-line basis over the term of the lease unless another systematic and rational basis is more representative of the time pattern in which the use benefit is derived from the leased property. Renewal options in leases with rental terms that are lower than those in the primary term are excluded from the calculation of straight-line rent if the renewals are not reasonably assured. If the Company funds tenant improvements and the improvements are deemed to be owned by the Company, revenue recognition will commence when the improvements are substantially completed and possession or control of the space is turned over to the tenant. If the Company determines that the tenant allowances are lease incentives, the Company commences revenue recognition when possession or control of the space is turned over to the tenant for tenant work to begin. The lease incentive is recorded as a deferred expense and amortized as a reduction of revenue on a straight-line basis over the respective lease term. The Company recognizes lease termination fees as rental revenue in the period received and writes off unamortized lease-related intangible and other lease-related account balances, provided there are no further Company obligations under the lease. Otherwise, such fees and balances are recognized on a straight-line basis over the remaining obligation period with the termination payments being recorded as a component of rent receivable-deferred or deferred revenue on the Consolidated Balance Sheets.
	Gains on sales of real estate are recognized based upon the specific timing of the sale as measured against various criteria related to the terms of the transactions and any continuing involvement associated with the properties. If the sales criteria are not met, the gain is deferred and the finance, installment or cost recovery method, as appropriate, is applied until the sales criteria are met. To the extent the Company sells a property and retains a partial ownership interest in the property, the Company recognizes gain to the extent of the third-party ownership interest.
	Accounts Receivable. The Company continuously monitors collections from tenants and makes a provision for estimated losses based upon historical experience and any specific tenant collection issues that the Company has identified. As of December 31, 2013 and 2012, the Company's allowance for doubtful accounts was not significant.
	Purchase Accounting and Acquisition of Real Estate. The fair value of the real estate acquired, which includes the impact of fair value adjustments for assumed mortgage debt related to property acquisitions, is allocated to the acquired tangible assets, consisting of land, building and improvements and identified intangible assets and liabilities, consisting of the value of above-market and below-market leases, other value of in-place leases and value of tenant relationships, based in each case on their fair values. Acquisition costs are expensed as incurred and are included in property operating expense in the accompanying Consolidated Statement of Operations. Also, noncontrolling interests acquired are recorded at estimated fair market value.
	The fair value of the tangible assets of an acquired property (which includes land, building and improvements and fixtures and equipment) is determined by valuing the property as if it were vacant. The “as-if-vacant” value is then allocated to land and building and improvements based on management's determination of relative fair values of these assets. Factors considered by management in performing these analyses include an estimate of carrying costs during the expected lease-up periods considering current market conditions and costs to execute similar leases. In estimating carrying costs, management includes real estate taxes, insurance and other operating expenses and estimates of lost rental revenue during the expected lease-up periods based on current market demand. Management also estimates costs to execute similar leases including leasing commissions.
	In allocating the fair value of the identified intangible assets and liabilities of an acquired property, above-market and below-market lease values are recorded based on the difference between the current in-place lease rent and management's estimate of current market rents. Below-market lease intangibles are recorded as part of deferred revenue and amortized into rental revenue over the non-cancelable periods and bargain renewal periods of the respective leases. Above-market leases are recorded as part of intangible assets and amortized as a direct charge against rental revenue over the non-cancelable portion of the respective leases.
	The aggregate value of other acquired intangible assets, consisting of in-place leases and tenant relationship values, is measured by the excess of (1) the purchase price paid for a property over (2) the estimated fair value of the property as if vacant, determined as set forth above. This aggregate value is allocated between in-place lease values and tenant relationship values based on management's evaluation of the specific characteristics of each tenant's lease. The value of in-place leases is amortized to expense over the remaining non-cancelable periods and any bargain renewal periods of the respective leases. The value of tenant relationships is amortized to expense over the applicable lease term plus expected renewal periods.
	Depreciation is determined by the straight-line method over the remaining estimated economic useful lives of the properties. The Company generally depreciates its real estate assets over periods ranging up to 40 years.
	Impairment of Real Estate. The Company evaluates the carrying value of all tangible and intangible real estate assets held for investment for possible impairment when an event or change in circumstance has occurred that indicates its carrying value may not be recoverable. The evaluation includes estimating and reviewing anticipated future undiscounted cash flows to be derived from the asset. If such cash flows are less than the asset's carrying value, an impairment charge is recognized to the extent by which the asset's carrying value exceeds its estimated fair value, which may be below the balance of any non-recourse financing. Estimating future cash flows and fair values is highly subjective and such estimates could differ materially from actual results.
	Investments in Non-Consolidated Entities. The Company accounts for its investments in 50% or less owned entities under the equity method, unless consolidation is required. If the Company's investment in the entity is insignificant and the Company has no influence over the control of the entity then the entity is accounted for under the cost method.
	Impairment of Equity Method Investments. The Company assesses whether there are indicators that the value of its equity method investments may be impaired. An impairment charge is recognized only if the Company determines that a decline in the value of the investment below its carrying value is other-than-temporary. The assessment of impairment is highly subjective and involves the application of significant assumptions and judgments about the Company's intent and ability to recover its investment given the nature and operations of the underlying investment, including the level of the Company's involvement therein, among other factors. To the extent an impairment is deemed to be other-than-temporary, the loss is measured as the excess of the carrying amount of the investment over the estimated fair value of the investment.
	Loans Receivable. Loans held for investment are intended to be held to maturity and, accordingly, are carried at cost, net of unamortized loan origination costs and fees, loan purchase discounts, and net of an allowance for loan losses when such loan is deemed to be impaired. Loan origination costs and fees and loan purchase discounts are amortized over the term of the loan. The Company considers a loan impaired when, based upon current information and events, it is probable that it will be unable to collect all amounts due for both principal and interest according to the contractual terms of the loan agreement. Significant judgments are required in determining whether impairment has occurred. The Company performs an impairment analysis by comparing either the present value of expected future cash flows discounted at the loan's effective interest rate, the loan's observable current market price or the fair value of the underlying collateral to the net carrying value of the loan, which may result in an allowance and corresponding loan loss charge. Interest income is recorded on a cash basis for impaired loans.
	Acquisition, Development and Construction Arrangements. The Company evaluates loans receivable where the Company participates in residual profits through loan provisions or other contracts to ascertain whether the Company has the same risks and rewards as an owner or a joint venture partner. Where the Company concludes that such arrangements are more appropriately treated as an investment in real estate, the Company reflects such loan receivable as an equity investment in real estate under construction in the Consolidated Balance Sheets. In these cases, no interest income is recorded on the loan receivable and the Company records capitalized interest during the construction period. In arrangements where the Company engages a developer to construct a property or provide funds to a tenant to develop a property, the Company will capitalize the funds provided to the developer/tenant and internal costs of interest and real estate taxes, if applicable, during the construction period.
	Properties Held For Sale. Assets and liabilities of properties that meet various held for sale criteria, including whether it is probable that a sale will occur within 12 months, are presented separately in the Consolidated Balance Sheets, with assets and liabilities being separately stated. The operating results of these properties are reflected as discontinued operations in the Consolidated Statements of Operations. Properties classified as held for sale are carried at the lower of net carrying value or estimated fair value less costs to sell and depreciation and amortization are no longer recognized. Properties that do not meet the held for sale criteria are accounted for as operating properties.
	Deferred Expenses. Deferred expenses consist primarily of debt and leasing costs. Debt costs are amortized using the straight-line method, which approximates the interest method, over the terms of the debt instruments and leasing costs are amortized over the term of the related lease.
	Derivative Financial Instruments. The Company accounts for its interest rate swap agreements in accordance with FASB ASC Topic 815, Derivatives and Hedging ("Topic 815"). In accordance with Topic 815, these agreements are carried on the balance sheet at their respective fair values, as an asset if fair value is positive, or as a liability if fair value is negative. If the interest rate swap is designated as a cash flow hedge, the effective portion of the interest rate swap's change in fair value is reported as a component of other comprehensive income (loss); the ineffective portion, if any, is recognized in earnings as an increase or decrease to interest expense.
	Upon entering into hedging transactions, the Company documents the relationship between the interest rate swap agreement and the hedged item. The Company also documents its risk-management policies, including objectives and strategies, as they relate to its hedging activities. The Company assesses, both at inception of a hedge and on an on-going basis, whether or not the hedge is highly effective. The Company will discontinue hedge accounting on a prospective basis with changes in the estimated fair value reflected in earnings when (1) it is determined that the derivative is no longer effective in offsetting cash flows of a hedged item (including forecasted transactions), (2) it is no longer probable that the forecasted transaction will occur or (3) it is determined that designating the derivative as an interest rate swap is no longer appropriate. The Company does and may continue to utilize interest rate swap and cap agreements to manage interest rate risk, but does not anticipate entering into derivative transactions for speculative trading purposes.
	Stock Compensation. The Company maintains an equity participation plan. Non-vested share grants generally vest either based upon (1) time, (2) performance and/or (3) market conditions. Options granted under the plan in 2010 vest over a five-year period and expire ten years from the date of grant. Options granted under the plan in 2008 vest upon attainment of certain market performance measures and expire ten years from the date of grant. All share-based payments to employees, including grants of employee stock options, are recognized in the Consolidated Statements of Operations based on their fair values.
	Tax Status. The Company has made an election to qualify, and believes it is operating so as to qualify, as a REIT for federal income tax purposes. Accordingly, the Company generally will not be subject to federal income tax, provided that distributions to its shareholders equal at least the amount of its REIT taxable income as defined under Sections 856 through 860 of the Code.
	The Company is permitted to participate in certain activities from which it was previously precluded in order to maintain its qualification as a REIT, so long as these activities are conducted in entities which elect to be treated as taxable REIT subsidiaries under the Code. As such, the Company is subject to federal and state income taxes on the income from these activities.
	Income taxes, primarily related to the Company's taxable REIT subsidiaries, are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax basis and operating loss and tax credit carry-forwards. Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which those temporary differences are expected to be recovered or settled.
	Cash and Cash Equivalents. The Company considers all highly liquid instruments with original maturities of three months or less from the date of purchase to be cash equivalents.
	Restricted Cash. Restricted cash is comprised primarily of cash balances held in escrow with lenders.
	Environmental Matters. Under various federal, state and local environmental laws, statutes, ordinances, rules and regulations, an owner of real property may be liable for the costs of removal or remediation of certain hazardous or toxic substances at, on, in or under such property as well as certain other potential costs relating to hazardous or toxic substances. These liabilities may include government fines, penalties and damages for injuries to persons and adjacent property. Such laws often impose liability without regard to whether the owner knew of, or was responsible for, the presence or disposal of such substances. Although most of the tenants of properties in which the Company has an interest are primarily responsible for any environmental damage and claims related to the leased premises, in the event of the bankruptcy or inability of the tenant of such premises to satisfy any obligations with respect to such environmental liability, or if the tenant is not responsible, the Company's property owner subsidiary may be required to satisfy any such obligations, should they exist. In addition, the property owner subsidiary, as the owner of such a property, may be held directly liable for any such damages or claims irrespective of the provisions of any lease. As of December 31, 2013, the Company was not aware of any environmental matter relating to any of its investments that would have a material impact on the consolidated financial statements.
	Segment Reporting. The Company operates generally in one industry segment, single-tenant real estate assets.
	Reclassifications. Certain amounts included in prior years' financial statements have been reclassified to conform to the current year presentation, including certain statement of operations captions including activities for properties sold during 2013, which are presented as discontinued operations.
	Recently Issued Accounting Guidance. In February 2013, the Financial Accounting Standards Board issued Accounting Standards Update No. 2013-02: Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income, to improve the transparency of reporting the reclassifications of significant amounts out of accumulated other comprehensive income. This guidance requires entities to present the effects on the line items of net income of significant reclasses from accumulated other comprehensive income, either where net income is presented or in the notes, as well as cross-reference to other disclosures currently required under GAAP for other reclassification items (that are not required under GAAP) to be reclassified directly to net income in their entirety in the same reporting period. The new disclosure requirements are effective for annual reporting periods beginning after December 15, 2012. The new disclosures are required for both interim and annual reporting. The implementation of this guidance did not have an impact on the Company's financial position, results of operations or cash flows.

Earnings_Per_Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Earnings Per Share	'
	Earnings Per Share
	A significant portion of the Company's non-vested share-based payment awards are considered participating securities and as such, the Company is required to use the two-class method for the computation of basic and diluted earnings per share. Under the two-class computation method, net losses are not allocated to participating securities unless the holder of the security has a contractual obligation to share in the losses. The non-vested share-based payment awards are not allocated losses as the awards do not have a contractual obligation to share in losses of the Company.
	The following is a reconciliation of the numerators and denominators of the basic and diluted earnings per share computations for each of the years in the three-year period ended December 31, 2013:
		2013			2012			2011
	BASIC
	Income (loss) from continuing operations attributable to common shareholders	$	(31,777	)	$	156,709		$	(30,194	)
	Income (loss) from discontinued operations attributable to common shareholders	17,688			112			(73,527		)
	Net income (loss) attributable to common shareholders	$	(14,089	)	$	156,821		$	(103,721	)
	Weighted-average number of common shares outstanding	209,797,238			159,109,424			152,473,336
	Income (loss) per common share:
	Income (loss) from continuing operations	$	(0.15	)	$	0.99		$	(0.20	)
	Income (loss) from discontinued operations	0.08			—			(0.48		)
	Net income (loss) attributable to common shareholders	$	(0.07	)	$	0.99		$	(0.68	)
		2013			2012			2011
	DILUTED:
	Income (loss) from continuing operations attributable to common shareholders	$	(31,777	)	$	156,709		$	(30,194	)
	Impact of assumed conversions:
	Share Options	—			—			—
	Operating Partnership Units	—			1,585			—
	6.00% Convertible Guaranteed Notes	—			8,953			—
	Income (loss) from continuing operations attributable to common shareholders	(31,777		)	167,247			(30,194		)
	Income (loss) from discontinued operations attributable to common shareholders	17,688			112			(73,527		)
	Impact of assumed conversions:
	Operating Partnership Units	—			(392		)	—
	Income (loss) from discontinued operations attributable to common shareholders	17,688			(280		)	(73,527		)
	Net income (loss) attributable to common shareholders	$	(14,089	)	$	166,967		$	(103,721	)
	Weighted-average common shares outstanding - basic	209,797,238			159,109,424			152,473,336
	Effect of dilutive securities:
	Share Options	—			306,449			—
	Operating Partnership Units	—			4,438,708			—
	6.00% Convertible Guaranteed Notes	—			15,805,245			—
	Weighted-average common shares outstanding	209,797,238			179,659,826			152,473,336
	Income (loss) per common share:
	Income (loss) from continuing operations	$	(0.15	)	$	0.93		$	(0.20	)
	Income (loss) from discontinued operations	0.08			—			(0.48		)
	Net income (loss) attributable to common shareholders	$	(0.07	)	$	0.93		$	(0.68	)
	For per common share amounts, all incremental shares are considered anti-dilutive for periods that have a loss from continuing operations attributable to common shareholders. In addition, other common share equivalents may be anti-dilutive in certain periods.

Investments_in_Real_Estate_and

Investments in Real Estate and Real Estate Under Construction	12 Months Ended
	Dec. 31, 2013
Real Estate Investments, Net [Abstract]	'
Investments in Real Estate and Real Estate Under Construction	'
	Investments in Real Estate and Real Estate Under Construction
	The Company's real estate, net, consists of the following at December 31, 2013 and 2012:
			2013				2012
	Real estate, at cost:
	Buildings and building improvements		$	3,008,709			$	2,969,050
	Land, land estates and land improvements		793,418				581,199
	Fixtures and equipment		5,861				7,705
	Construction in progress		4,306				6,512
	Real estate intangibles:
	In-place lease values		486,743				401,503
	Tenant relationships		172,640				179,655
	Above-market leases		102,774				104,756
	Investments in real estate under construction		74,350				65,122
			4,648,801				4,315,502
	Accumulated depreciation and amortization(1)		(1,223,381		)		(1,150,417		)
	Real estate, net		$	3,425,420			$	3,165,085
	-1	Includes accumulated amortization of real estate intangible assets of $447,764 and $412,349 in 2013 and 2012, respectively. The estimated amortization of the above real estate intangible assets for the next five years is $44,003 in 2014, $34,932 in 2015, $28,640 in 2016, $25,239 in 2017 and $21,498 in 2018.
	The Company had below-market leases, net of accumulated accretion, which are included in deferred revenue, of $59,781 and $71,513, respectively as of December 31, 2013 and 2012. The estimated accretion for the next five years is $5,176 in 2014, $4,489 in 2015, $3,380 in 2016, $2,935 in 2017 and $2,911 in 2018.
	The Company, through property owner subsidiaries, completed the following acquisitions and build-to-suit transactions during 2013 and 2012:
	2013:00:00
													Real Estate Intangibles
	Property Type	Location	Acquisition/Completion Date	Initial Cost Basis			Lease Expiration	Land and Land Estate			Building and Improvements		Above Market Lease Value		Lease in-place Value
	Industrial	Long Island City, NY	Feb-13	$	42,124		Mar-28	$	—		$	42,124	$	—	$	—
	Industrial	Houston, TX	Mar-13	$	81,400		Mar-38	$	15,055		$	57,949	$	—	$	8,396
	Office (1)	Denver, CO	Apr-13	$	34,547		Apr-28	$	2,207		$	26,724	$	—	$	5,616
	Retail(2)	Tuscaloosa, AL	May-13	$	8,397		May-28	$	2,793		$	5,604	$	—	$	—
	Land(3)	New York, NY	Oct-13	$	302,000		Oct-12	$	224,935		$	—	$	—	$	77,065
	Land	Danville, VA	Oct-13	$	4,727		Jan-29	$	3,454		$	—	$	673	$	600
	Retail(4)	Albany, GA	Nov-13	$	7,074		Nov-28	$	1,468		$	5,606	$	—	$	—
	Office(5)	Various	Dec-13	$	13,144		Dec-33	$	1,522		$	10,374	$	—	$	1,248
	Office	Omaha, NE	Dec-13	$	39,125		Nov-33	$	2,058		$	32,343	$	—	$	4,724
				$	532,538			$	253,492		$	180,724	$	673	$	97,649
	Weighted-average life of intangible assets (years)												15.3		82.5
	-1	The Company incurred additional tenant related costs of $3,825.
	-2	The Company incurred leasing costs of $323. The property was sold in September 2013.
	-3	Includes three properties.
	-4	The Company incurred leasing costs of $338.
	-5	Includes four properties. One property was under construction at December 31, 2013, $1,969 of construction in progress costs are included in building and improvements above.
	In addition, during 2013, the Company deposited $638 toward the purchase of a to-be-built industrial property in Lewisburg, Tennessee for an estimated cost of $12,767. Substantial completion of the property is expected to occur in the second quarter of 2014 although there can be no assurance that the acquisition will be consummated.
	2012:00:00
													Real Estate Intangibles
	Property Type	Location	Acquisition/Completion Date	Initial Cost Basis			Lease Expiration	Land and Land Estate			Building and Improvements		Lease in-place Value		Tenant Relationships Value
	Office	Huntington, WV	Jan-12	$	12,558		Nov-26	$	1,368		$	9,527	$	1,405	$	258
	Office	Florence, SC	Feb-12	$	5,094		Feb-24	$	774		$	3,629	$	505	$	186
	Land/ Infrastructure	Missouri City, TX	Apr-12	$	23,000		Apr-32	$	14,555		$	5,895	$	2,135	$	415
	Industrial	Shreveport, LA	Jun-12	$	12,941		Mar-22	$	1,078		$	10,134	$	1,590	$	139
	Retail	Valdosta, GA(1)	Aug-12	$	7,791		Aug-27	$	2,128		$	5,663	$	—	$	—
	Office	Jessup, PA	Aug-12	$	24,917		Aug-27	$	2,520		$	17,656	$	3,336	$	1,405
	Office	Saint Joseph, MO	Sep-12	$	17,571		Jun-27	$	607		$	14,004	$	2,528	$	432
	Retail	Opelika, AL(1)	Nov-12	$	7,978		Nov-27	$	1,446		$	6,532	$	—	$	—
	Office	Phoenix, AZ	Dec-12	$	53,200		Dec-29	$	5,585		$	36,099	$	8,956	$	2,560
	Office	Eugene, OR	Dec-12	$	17,558		Nov-27	$	1,541		$	13,099	$	2,414	$	504
				$	182,608			$	31,602		$	122,238	$	22,869	$	5,899
	Weighted-average life of intangible assets (years)												15.7		16
	(1) Incurred leasing costs of $488 for Valdosta and $355 for Opelika. Properties were sold in 2013.
	The Company recognized aggregate acquisition expenses of $812 and $947 in 2013 and 2012, respectively, which are included in property operating expenses within the Company's Consolidated Statements of Operations.
	The Company is engaged in various forms of build-to-suit development activities. The Company, through lender subsidiaries and property owner subsidiaries, may enter into the following acquisition, development and construction arrangements: (1) lend funds to construct build-to-suit projects subject to a single-tenant lease and agree to purchase the properties upon completion of construction and commencement of a single-tenant lease, (2) hire developers to construct built-to-suit projects on owned properties leased to single tenants, (3) fund the construction of build-to-suit projects on owned properties pursuant to the terms in single-tenant lease agreements or (4) enter into purchase and sale agreements with developers to acquire single-tenant build-to-suit properties upon completion. As of December 31, 2013, the Company had the following development arrangements outstanding:
	Location	Property Type	Square Feet			Expected Maximum Commitment/Contribution ($ millions)				Lease Term (Years)	Estimated Completion Date
	Rantoul, IL	Industrial	813,000			$	42.6			20	1Q 14
	Bingen, WA	Industrial	124,000			$	18.9			12	2Q 14
	Las Vegas, NV	Industrial	180,000			$	29.6			20	3Q 14
	Richmond, VA	Office	279,000			$	98.6			15	3Q 15
			1,396,000			$	189.7
The Company has variable interests in certain developer entities constructing the facilities but is not the primary beneficiary of the entities as the Company does not have a controlling financial interest. As of December 31, 2013 and 2012, the Company's aggregate investment in development arrangements was $74,350 and $65,122, respectively, which includes $1,472 and $1,291 of interest capitalized during 2013 and 2012, respectively, and is presented as investments in real estate under construction in the accompanying Consolidated Balance Sheets.
On September 1, 2012, the Company, together with an operating partnership subsidiary, acquired the remaining common equity interest in Net Lease Strategic Assets Fund L.P. (“NLS”) from Inland American (Net Lease) Sub, LLC (“Inland”) that the Company did not already own for a cash payment of $9,438 and the assumption of all outstanding liabilities. Immediately prior to the acquisition, the Company owned 15% of NLS's common equity and 100% of NLS's preferred equity and its investment balance in NLS was $40,047. At the date of acquisition, NLS owned 41 properties totaling 5.8 million square feet in 23 states, plus a 40% tenant-in-common interest in an office property.  The Company's investment in NLS had previously been accounted for under the equity method and is now consolidated. The acquisition resulted in a remeasurement of the net assets acquired to fair value. The Company engaged an independent third party to determine the fair value of the assets acquired and liabilities assumed.
The following table summarizes the allocation of the fair value of amounts recognized for each major class of assets and liabilities:
Real estate assets		$	325,310
Lease related intangible assets		124,330
Cash		8,107
Other assets		36,179
Total acquired assets		493,926
Secured debt		252,517
Other liabilities, including below-market leases		23,686
Total assumed liabilities		276,203
Fair value of acquired net assets (represents 100% interest)		$	217,723
The Company recognized a gain on the transaction in the Consolidated Statement of Operations of $167,864 primarily related to the revaluation of the Company's equity interest in NLS for the difference between its carrying value in NLS and the fair value of its ownership interest at acquisition. The noncontrolling interest share of the fair value of the net assets acquired was $373.
Intangible assets and liabilities recorded in connection with the above acquisition are set forth as follows:
					Weighted Average Amortization Period (in Years)
In-place leases		$	59,819		6.2
Tenant relations		24,828			4.6
Above-market leases		39,683			8.4
Total intangible assets acquired		$	124,330
Below-market leases		$	1,529		2.7
The Company recognized gross revenues from continuing operations of $42,576 and $14,504 and net losses of $4,419 and $1,667 from NLS properties in 2013 and 2012, respectively.
The following unaudited condensed consolidated pro forma information is presented as if the Company acquired the remaining equity in NLS on January 1, 2011. The information excludes activity that is non-recurring and not representative of future activity, primarily the gain on acquisition of $167,864 and acquisition costs of $230 for 2012. The information presented below is not necessarily indicative of what the actual results of operations would have been had the transaction been completed on January 1, 2011, nor does it purport to represent the Company's future operations:
		2012				2011
Gross revenues		$	372,603			$	356,918
Net income (loss) attributable to Lexington Realty Trust shareholders		$	8			$	(111,787	)
Net loss attributable to common shareholders		$	(22,985	)		$	(135,924	)
Net loss per common share - basic and diluted		$	(0.14	)		$	(0.89	)

Sales_of_Real_Estate_and_Disco

Sales of Real Estate and Discontinued Operations	12 Months Ended
	Dec. 31, 2013
Discontinued Operations and Disposal Groups [Abstract]	'
Sales of Real Estate and Discontinued Operations	'
	Sales of Real Estate and Discontinued Operations
	For the years ended December 31, 2013, 2012 and 2011, the Company disposed of its interests in certain properties (excluding Pemlex LLC, see note 9) generating aggregate net proceeds of $75,519, $142,022 and $124,039, respectively, which resulted in gains on sales of $24,472, $13,291 and $6,557, respectively. For the years ended December 31, 2013, 2012 and 2011, the Company recognized net debt satisfaction gains (charges) relating to these properties of $8,955, $(178) and $(606), respectively. These gains (charges) are included in discontinued operations.
	At December 31, 2013 and 2012, the Company had no properties classified as held for sale.
	The following presents the operating results for the properties sold and held for sale during the years ended December 31, 2013, 2012 and 2011:
		Year Ending December 31,
		2013		2012		2011
	Total gross revenues	$	7,577	$	22,591	$	44,247
	Pre-tax net income (loss), including gains on sales	$	19,746	$	1,807	$	(87,533	)

Impairment_of_Real_Estate

Impairment of Real Estate	12 Months Ended
	Dec. 31, 2013
Impairment of Real Estate [Abstract]	'
Impairment of Real Estate	'
	Impairment of Real Estate Investments
	The Company assesses on a regular basis whether there are any indicators that the carrying value of real estate assets may be impaired. Potential indicators may include an increase in vacancy at a property, tenant reduction in utilization of a property, tenant financial instability and the potential sale of the property in the near future. An asset is determined to be impaired if the asset's carrying value is in excess of its estimated fair value.
	During 2013, 2012 and 2011, the Company recognized aggregate impairment charges of $21,640, $4,262 and $17,008, respectively, on real estate assets classified in continuing operations. The Company has explored the possible disposition of some non-core properties, including retail, underperforming and multi-tenant properties and determined that the expected undiscounted cash flows based upon revised estimated holding periods of certain of these properties were below the current carrying values. Accordingly, the Company reduced the carrying value of these properties to their estimated fair values.
	During 2013, 2012 and 2011, the Company recognized $12,920, $5,707 and $100,435, respectively, of impairment charges in discontinued operations, relating to real estate assets that were ultimately disposed of below their carrying value.

Loans_Receivable

Loans Receivable	12 Months Ended
	Dec. 31, 2013
Loans Receivable, Net [Abstract]	'
Loans Receivable	'
	Loans Receivable
	As of December 31, 2013 and 2012, the Company's loans receivable, including accrued interest and net of origination fees and loan loss reserves are comprised primarily of first and second mortgage loans and mezzanine loans on real estate aggregating $99,443 and $72,540, respectively.
	The following is a summary of our loans receivable as of December 31, 2013 and 2012:
			Loan carrying-value(1)
	Loan		12/31/13		12/31/12		Interest Rate		Maturity Date
	Norwalk, CT(2)		$	28,186	$	3,479	7.5	%	Nov-14
	Homestead, FL(3)		10,239		8,036		7.5	%	Aug-14
	Schaumburg, IL(4)		—		21,885		20	%	Jan-12
	Westmont, IL(5)		12,610		26,902		6.45	%	Oct-15
	Southfield, MI		6,610		7,364		4.55	%	Feb-15
	Austin, TX		2,389		2,038		16	%	Oct-18
	Kennewick, WA(6)		37,030		—		9	%	May-22
	Other		2,379		2,836		8	%	2021-2022
			$	99,443	$	72,540
	-1	Loan carrying value includes accrued interest and is net of origination costs, loan losses and fee eliminations, if any.
	-2	The Company is committed to lend up to $32,600.
	-3	The Company is committed to lend up to $10,660.
	-4	Borrower defaulted on the loan. The Company did not record interest of $2,939 and $2,647 in 2013 and 2012, respectively, representing the interest earned since default. In 2013, the Company foreclosed on the borrower and acquired the office property collateral which is net leased through December 2022.
	-5	Borrower is delinquent on debt service payments. Tenant at office property collateral terminated its lease. The Company recognized an impairment of $13,939 during 2013. During 2013, the Company recognized $1,737 of interest income relating to the impaired loan and the loan had an average recorded investment value of $25,562. At December 31, 2013, the impaired loan receivable had a net carrying value of $12,610 and a contractual unpaid balance of $26,549.
	-6	The Company is committed to lend up to $85,000. During construction advances accrue interest at 6.5% per annum. Estimated construction completion is March 2014.
	The Company has two types of financing receivables: loans receivable and a capitalized financing lease. The Company determined that its financing receivables operate within one portfolio segment as they are both within the same industry and use the same impairment methodology. The Company's loans receivable are secured by commercial real estate assets and the capitalized financing lease is for a commercial office property located in Greenville, South Carolina. In addition, the Company assesses all financing receivables for impairment, when warranted, based on an individual analysis of each receivable.
	The Company's financing receivables operate within one class of financing receivables as these assets are collateralized by commercial real estate and similar metrics are used to monitor the risk and performance of these assets. The Company's management uses credit quality indicators to monitor financing receivables such as quality of collateral, the underlying tenant's credit rating and collection experience. As of December 31, 2013, the financing receivables were performing as anticipated other than the Westmont, Illinois loan as discussed above and there were no other significant delinquent amounts outstanding.

Fair_Value_Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
Fair Value Measurements	'
	Fair Value Measurements
	The following tables present the Company's assets and liabilities from continuing operations measured at fair value on a recurring basis as of December 31, 2013 and 2012 and non-recurring basis during the year ended December 31, 2013 and 2012, aggregated by the level in the fair value hierarchy within which those measurements fall:
					Fair Value Measurements Using
	Description	2013			(Level 1)		(Level 2)			(Level 3)
	Interest rate swap assets	$	4,439		$	—	$	4,439		$	—
	Impaired real estate assets*	$	12,549		$	—	$	—		$	12,549
	Impaired loan receivable*	$	12,610		$	—	$	—		$	12,610
	Impaired investments in and advances to non-consolidated entities*	$	683		$	—	$	—		$	683
	*Represents a non-recurring fair value measurement.
					Fair Value Measurements Using
	Description	2012			(Level 1)		(Level 2)			(Level 3)
	Interest rate swap liability	$	(6,556	)	$	—	$	(6,556	)	$	—
	Impaired real estate assets*	$	3,327		$	—	$	—		$	3,327
	*Represents a non-recurring fair value measurement.
	The table below sets forth the carrying amounts and estimated fair values of the Company's financial instruments as of December 31, 2013 and 2012:
		As of December 31, 2013					As of December 31, 2012
		Carrying			Fair Value		Carrying			Fair Value
		Amount					Amount
	Assets
	Loans Receivable (Level 3)	$	99,443		$	95,734	$	72,540		$	61,734
	Liabilities
	Debt (Level 3)	$	2,055,807		$	2,028,558	$	1,878,208		$	1,835,157
	The majority of the inputs used to value the Company's interest rate swap asset (liability) fall within Level 2 of the fair value hierarchy, such as observable market interest rate curves; however, the credit valuation associated with the interest rate swap liability utilizes Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by the Company and its counterparties. As of December 31, 2013 and 2012, the Company determined that the credit valuation adjustment relative to the overall interest rate swap asset (liability) is not significant. As a result, the entire interest rate swap asset (liability) has been classified in Level 2 of the fair value hierarchy.
	The Company estimates the fair value of its real estate assets, including non-consolidated real estate assets, by using income and market valuation techniques. The Company may estimate fair values using market information such as broker opinions of value, recent sales data for similar assets or discounted cash flow models, which primarily rely on Level 3 inputs. The cash flow models include estimated cash inflows and outflows over a specified holding period. These cash flows may include contractual rental revenues, projected future rental revenues and expenses and forecasted tenant improvements and lease commissions based upon market conditions determined through discussion with local real estate professionals, experience the Company has with its other owned properties in such markets and expectations for growth. Capitalization rates and discount rates utilized in these models are estimated by management based upon rates that management believes to be within a reasonable range of current market rates for the respective properties based upon an analysis of factors such as property and tenant quality, geographical location and local supply and demand observations. To the extent the Company under estimates forecasted cash outflows (tenant improvements, lease commissions and operating costs) or over estimates forecasted cash inflows (rental revenue rates), the estimated fair value of its real estate assets could be overstated.
	The Company estimates the fair values of its loans receivable by using an estimated discounted cash flow analysis consisting of scheduled cash flows and discount rate estimates to approximate those that a willing buyer and seller might use and/or the estimated value of the underlying collateral. The fair value of the Company's debt is estimated by using a discounted cash flow analysis, based upon estimates of market interest rates.
	Fair values cannot be determined with precision, may not be substantiated by comparison to quoted prices in active markets and may not be realized upon sale. Additionally, there are inherent uncertainties in any fair value measurement technique, and changes in the underlying assumptions used, including discount rates, liquidity risks and estimates of future cash flows, could significantly affect the fair value measurement amounts.
	Cash Equivalents, Restricted Cash, Accounts Receivable and Accounts Payable. The Company estimates that the fair value of cash equivalents, restricted cash, accounts receivable and accounts payable approximates carrying value due to the relatively short maturity of the instruments.

Investment_in_and_Advances_to_

Investment in and Advances to Non-Consolidated Entities	12 Months Ended
	Dec. 31, 2013
Equity Method Investments and Joint Ventures [Abstract]	'
Investment in and Advances to Non-Consolidated Entities	'
	Investment in and Advances to Non-Consolidated Entities
	In October 2013, the Company formed a joint venture, in which the Company has a 15.0% interest, that acquired a portfolio of veterinary hospitals for $39,456, which are net leased for a 20-year term. The acquisition was partially funded by a $18,791 non-recourse mortgage loan with a fixed interest rate of 4.01% and maturity of November 2018.
	In August 2013, the Company invested $5,000 in a joint venture, which acquired the fee interest and the related office building improvements of a property in Baltimore, Maryland. Beginning in October 2015, the Company has the right to require the redemption of its interest in the joint venture in exchange for a distribution to the Company of the fee interest, which is currently leased for a 99-year term to the joint venture.
	In July 2013, the Company acquired its consolidated joint venture partners' interest in an industrial facility in Long Island City, New York for a payment of $8,918, which was recorded as a distribution to the partner in accordance with GAAP.
	During 2012, the Company formed two joint ventures in which it has a minority interest. One joint venture acquired a retail property in Palm Beach Gardens, Florida for $29,750 which was net leased for an approximate 15-year term. The Company had a 36% interest in the venture and provided a $12,000 non-recourse mortgage loan to the venture which was repaid in full in February 2013. The Company received a distribution of $2,557 in March 2013, a portion of which represented a return of capital reducing the Company's ownership interest to 25%.
	The second joint venture, in which the Company has a 15% interest, acquired a 100% economic interest in an inpatient rehabilitation hospital in Humble, Texas for $27,750, which was net leased for an approximate 17-year term. The acquisition was partially funded by a non-recourse mortgage with an original principal amount of $15,260, which bears interest at a fixed rate of 4.7% and matures in May 2017.
	In July 2012, the Company sold its interest in Pemlex LLC, a consolidated subsidiary, for $13,218 in connection with its restructuring. No gain or loss was recognized in the transaction as the investment was sold at its cost basis.
	The Company's investments in Concord Debt Holding LLC and CDH CDO LLC were valued at zero and the Company recognized income on the cash basis. During 2012, the Company sold all of its interest in Concord Debt Holding LLC and CDH CDO LLC for $7,000 in cash.
	Other. During 2013 and 2011, the Company recognized other-than-temporary impairment charges on a non-consolidated joint venture acquired in the merger with Newkirk due to changes in the Company's estimate of net proceeds to be received upon liquidation of the joint venture. Accordingly, the Company recognized $925 and $1,559, respectively, in impairment charges in equity in earnings (losses) of non-consolidated entities.
	The Company's remaining equity method investments consist of interests in six partnerships with ownership percentages ranging between 27% and 40%, which own primarily net-leased properties. All profits, losses and cash flows are distributed in accordance with the respective partnership agreements. The partnerships are encumbered by $27,793 in mortgage debt (the Company's proportionate share is $9,737) with interest rates ranging from 5.2% to 10.6% with a weighted-average rate of 7.2% and maturity dates ranging from 2015 to 2016.
	LRA earns advisory fees from certain of these non-consolidated entities, including NLS, for services related to acquisitions, asset management and debt placement. Advisory fees earned from these non-consolidated investments were $512, $875 and $804 for the years ended December 31, 2013, 2012 and 2011, respectively.

Mortgages_and_Notes_Payable

Mortgages and Notes Payable	12 Months Ended
	Dec. 31, 2013
Mortgages and Notes Payable [Abstract]	'
Mortgages and Notes Payable	'
	Mortgages and Notes Payable
	The Company had outstanding mortgages and notes payable of $1,197,489 and $1,415,961 as of December 31, 2013 and 2012, respectively. Interest rates, including imputed rates on mortgages and notes payable, ranged from 3.6% to 8.5% at December 31, 2013 and the mortgages and notes payable mature between 2014 and 2027. Interest rates, including imputed rates, ranged from 3.6% to 8.5% at December 31, 2012. The weighted-average interest rate at December 31, 2013 and 2012 was approximately 5.3% and 5.6%, respectively.
	On February 12, 2013, the Company refinanced its $300,000 secured revolving credit facility with a $300,000 unsecured revolving credit facility with KeyBank National Association (“KeyBank”), as agent. The unsecured revolving credit facility matures in February 2017 but can be extended until February 2018 at the Company’s option. The unsecured revolving credit facility bore interest at LIBOR plus 1.50% to 2.05% based on the Company’s leverage ratio, as defined therein. Since the Company has obtained an investment-grade unsecured debt rating from both Moody’s Investor Services, Inc. (“Moody’s”) and Standard & Poor’s Rating Services (“S&P”), the interest rate under the unsecured revolving credit facility ranges from LIBOR plus 0.95% to 1.725% (1.15% as of December 31, 2013) depending on the Company's unsecured investment-grade debt rating. In addition, the Company increased its availability under the unsecured revolving credit facility from $300,000 to $400,000. At December 31, 2013, the unsecured revolving credit facility had $48,000 outstanding, outstanding letters of credit of $7,644 and availability of $344,356, subject to covenant compliance.
	In connection with the refinancing discussed above, the Company also procured a 5-year $250,000 unsecured term loan facility from KeyBank, as agent. The unsecured term loan matures in February 2018, required regular payments of interest only at interest rates ranging from LIBOR plus 1.45% to 2.00% dependent on the Company's leverage ratio, as defined therein and can be prepaid without penalty. Since the Company has obtained an investment-grade unsecured debt rating from both Moody’s and S&P, the interest rate under the unsecured term loan ranges from LIBOR plus 1.10% to 2.10% (1.35% as of December 31, 2013) depending on the Company’s unsecured investment-grade debt rating. In 2013, the Company entered into interest rate swap agreements to fix the LIBOR component at a weighted-average rate of 1.05% through February 2018 on the $151,000 of outstanding LIBOR-based borrowings (see note 22).
	During 2012, the Company procured a $255,000 secured term loan from Wells Fargo Bank, National Association (“Wells Fargo”), as agent. The term loan matures in January 2019. The term loan required regular payments of interest only at interest rates ranging from LIBOR plus 2.00% to 2.85% dependent on the Company's leverage ratio, as defined therein. Since the Company has obtained an investment-grade unsecured debt rating from both Moody’s and S&P, the interest rate under the secured term loan ranges from LIBOR plus 1.50% to 2.25% (1.75% as of December 31, 2013) depending on the Company's unsecured investment-grade debt rating. The Company may prepay any outstanding borrowings under the term loan facility at a premium through January 12, 2016 and at par thereafter. During 2012, the Company entered into interest rate swap agreements to fix the LIBOR component at a weighted-average rate of 1.42% through January 2019 on the $255,000 of outstanding LIBOR-based borrowings. The term loan was initially secured by ownership interest pledges by certain subsidiaries that collectively owned a borrowing base of properties.
	The unsecured revolving credit facility and the unsecured term loans are subject to financial covenants, which the Company was in compliance with at December 31, 2013.
	The Company had $25,000 and $35,551 secured term loans with KeyBank, which were satisfied in January 2012 and the Company recognized debt satisfaction charges of $1,578 as a result of the satisfaction.
	Included in the Consolidated Statements of Operations, the Company recognized debt satisfaction gains (charges), net, excluding discontinued operations, of $(11,861), $(16) and $45 for the years ended December 31, 2013, 2012 and 2011, respectively, due to the satisfaction of mortgages and notes payable other than those disclosed elsewhere in these financial statements. In addition, the Company capitalized $2,397, $3,062 and $1,792 in interest, including discontinued operations, for the years ended 2013, 2012 and 2011, respectively.
	Mortgages payable and secured loans are generally collateralized by real estate and the related leases. Certain mortgages payable have yield maintenance or defeasance requirements relating to any prepayments. In addition, certain mortgages are cross-collateralized and cross-defaulted.
	Scheduled principal and balloon payments for mortgages, notes payable, credit facility borrowings and term loans for the next five years and thereafter are as follows:
	Year ending December 31,	Total
	2014	$	123,212
	2015	301,591
	2016	168,899
	2017	137,035
	2018	188,764
	Thereafter	731,988
		$	1,651,489

Senior_Notes_Convertible_Notes

Senior Notes, Convertible Notes, Exchangeable Notes and Trust Preferred Securities	12 Months Ended
	Dec. 31, 2013
Senior Notes, Convertible Notes, Exchangeable Notes and Trust Preferred Securities [Abstract]	'
Senior Notes, Convertible Notes, Exchangeable Notes and Trust Preferred Securities	'
	Senior Notes, Convertible Notes, Exchangeable Notes and Trust Preferred Securities
	In June 2013, the Company issued $250,000 aggregate principal amount of 4.25% Senior Notes due 2023 (“Senior Notes”) at an issuance price of 99.026% of the principal amount. The Senior Notes are unsecured, pay interest semi-annually in arrears and mature in June 2023. The Company may redeem the notes at its option at any time prior to maturity in whole or in part by paying the principal amount of the notes being redeemed plus a premium. The Company issued these Senior Notes at an initial discount of $2,435 which is being recognized as additional interest expense over the term of the Senior Notes. The Senior Notes are rated Baa2 and BBB- by Moody’s and S&P, respectively.
	During 2010, the Company issued $115,000 aggregate principal amount of 6.00% Convertible Guaranteed Notes. The notes pay interest semi-annually in arrears and mature in January 2030. The holders of the notes may require the Company to repurchase their notes in January 2017, January 2020 and January 2025 for cash equal to 100% of the notes to be repurchased, plus any accrued and unpaid interest. The Company may not redeem any notes prior to January 2017, except to preserve its REIT status. As of the date of filing this Annual Report, the notes have a conversion rate of 147.8206 common shares per one thousand principal amount of the notes, representing a conversion price of approximately $6.76 per common share. The conversion rate is subject to adjustment under certain circumstances, including increases in the Company's dividend rate above a certain threshold and the issuance of stock dividends. The notes are convertible by the holders under certain circumstances for cash, common shares or a combination of cash and common shares at the Company's election. The notes are convertible prior to the close of business on the second business day immediately preceding the stated maturity date, at any time beginning in January 2029 and also upon the occurrence of specified events. During 2013 and 2012, $54,905 and $31,104 aggregate principal amount of the notes were converted for 7,944,673 and 4,487,060 common shares and an aggregate cash payment of $3,270 and $2,427 plus accrued and unpaid interest, respectively. The Company recognized aggregate debt satisfaction charges of $13,536 and $7,842, during 2013 and 2012, respectively, relating to the conversions.
	In 2013, the Company obtained the release of all guarantees, other than the Company's operating partnership, under the indentures for the Senior Notes and the 6.00% Convertible Guaranteed Notes, the term loan agreements and the unsecured revolving credit facility.
	During 2007, the Company issued an aggregate $450,000 of 5.45% Exchangeable Guaranteed Notes due in 2027. During 2012, the Company repurchased and retired all remaining outstanding original principal amount of the notes for a cash payment of $62,150. This resulted in debt satisfaction charges, net of $44.
	Below is a summary of additional disclosures related to the 6.00% Convertible Guaranteed Notes and the 5.45% Exchangeable Guaranteed Notes.
		6.00% Convertible Guaranteed Notes
	Balance Sheets:	December 31, 2013				December 31, 2012
	Principal amount of debt component	$	28,991			$	83,896
	Unamortized discount	(1,500		)		(5,769		)
	Carrying amount of debt component	$	27,491			$	78,127
	Carrying amount of equity component	$	(26,032	)		$	3,654
	Effective interest rate	8.1		%		8.1		%
	Period through which discount is being amortized, put date	Jan-17				Jan-17
	Aggregate if-converted value in excess of aggregate principal amount	$	14,296			$	42,579
	Statements of Operations:		2013				2012		2011
	6.00% Convertible Guaranteed Notes
	Coupon interest		$	2,296			$	6,634	$	6,900
	Discount amortization		658				1,868		1,938
			$	2,954			$	8,502	$	8,838
	5.45% Exchangeable Guaranteed Notes
	Coupon interest		$	—			$	188	$	3,387
	Discount amortization		—				34		664
			$	—			$	222	$	4,051
	During 2007, the Company issued $200,000 original principal amount of Trust Preferred Securities. The Trust Preferred Securities, which are classified as debt, are due in 2037, were open for redemption at the Company's option commencing April 2012 and bear interest at a fixed rate of 6.804% through April 2017 and thereafter, at a variable rate of three month LIBOR plus 170 basis points through maturity. As of December 31, 2013 and 2012, there was $129,120 original principal amount of Trust Preferred Securities outstanding.
	Scheduled principal payments for these debt instruments for the next five years and thereafter are as follows:
	Year ending December 31,		Total
	2014		$	—
	2015		—
	2016		—
	2017(1)		28,991
	2018		—
	Thereafter		379,120
			408,111
	Debt discounts		(3,793		)
			$	404,318
	-1	Although the 6.00% Convertible Guaranteed Notes mature in 2030, the notes can be put to the Company in 2017.

Derivatives_and_Hedging_Activi

Derivatives and Hedging Activities

12 Months Ended

Dec. 31, 2013

Derivative Instruments and Hedging Activities Disclosure [Abstract]

'

Derivative and Hedging Activities

'

Derivatives and Hedging Activities

Risk Management Objective of Using Derivatives. The Company is exposed to certain risks arising from both its business operations and economic conditions. The Company principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. The Company manages economic risks, including interest rate, liquidity, and credit risk primarily by managing the type, amount, sources, and duration of its debt funding and the use of derivative financial instruments. Specifically, the Company enters into derivative financial instruments to manage exposures that arise from business activities that result in the receipt or payment of future known and uncertain cash amounts, the value of which are determined by interest rates. The Company's derivative financial instruments are used to manage differences in the amount, timing, and duration of the Company's known or expected cash receipts and its known or expected cash payments principally related to the Company's investments and borrowings.

Cash Flow Hedges of Interest Rate Risk. The Company's objectives in using interest rate derivatives are to add stability to interest expense, to manage its exposure to interest rate movements and therefore manage its cash outflows as it relates to the underlying debt instruments. To accomplish these objectives the Company primarily uses interest rate swaps as part of its interest rate risk management strategy relating to certain of its variable rate debt instruments. Interest rate swaps designated as cash flow hedges involve the receipt of variable-rate amounts from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount.

The effective portion of changes in the fair value of derivatives designated and that qualify as cash flow hedges is recorded in accumulated other comprehensive income (loss) and is subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. The ineffective portion of the change in fair value of the derivatives is recognized directly in earnings.

The Company has designated the interest rate swap agreements with its counterparties as cash flow hedges of the risk of variability attributable to changes in the LIBOR swap rates on $406,000 of LIBOR-indexed variable-rate secured term loans. Accordingly, changes in the fair value of the swaps are recorded in other comprehensive income (loss) and reclassified to earnings as interest becomes receivable or payable. In 2012, the Company settled the 2008 interest rate swap agreement with KeyBank for $3,539. The Company had a credit balance of $1,837 in accumulated other comprehensive income at the settlement date which was amortized into earnings on a straight-line basis through February 2013.

Amounts reported in accumulated other comprehensive income (loss) related to derivatives will be reclassified to interest expense as interest payments are made on the aggregate $406,000 term loans. During the next 12 months, the Company estimates that an additional $4,344 will be reclassified as an increase to interest expense if the swaps remain outstanding.

As of December 31, 2013, the Company had the following outstanding interest rate derivatives that were designated as cash flow hedges of interest rate risk:

Interest Rate Derivative

Number of Instruments

Notional

Interest Rate Swaps

8

$406,000

Derivatives Not Designated as Hedges. The Company does not use derivatives for trading or speculative purposes. During 2008, the Company entered into a forward purchase equity commitment with a financial institution to finance the repurchase of 3,500,000 common shares of the Company at $5.60 per share under the Company's common share repurchase plan as approved by the Company's Board of Trustees. The Company recognized earnings during 2011 of $2,030, primarily relating to the increase in the fair value of the common shares held as collateral. The Company settled this commitment in October 2011 through a cash payment of $4,024 and retired 3,974,645 common shares.

The table below presents the fair value of the Company's derivative financial instruments as well as their classification on the Consolidated Balance Sheets as of December 31, 2013 and 2012.

As of December 31, 2013

As of December 31, 2012

Balance Sheet Location

Fair Value

Balance Sheet Location

Fair Value

Derivatives designated as hedging instruments:

Interest Rate Swap Asset (Liability)

Other Assets

$

4,439

Accounts Payable and Other Liabilities

$

(6,556

)

The tables below present the effect of the Company's derivative financial instruments on the Consolidated Statements of Operations for 2013 and 2012:

Derivatives in Cash Flow

Amount of Gain (Loss) Recognized

Location of Loss

Amount of Loss Reclassified

in OCI on Derivative

Reclassified from

from Accumulated OCI into

(Effective Portion)

Accumulated OCI into Income (Effective Portion)

Income (Effective Portion)

December 31,

December 31,

Hedging Relationships

2013

2012

2013

2012

Interest Rate Swap

$

7,559

$

(8,886

)

Interest expense

$

3,104

$

724

The Company's agreements with the swap derivative counterparties contain provisions whereby if the Company defaults on the underlying indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender, then the Company could also be declared in default of the swap derivative obligation. As of December 31, 2013, the Company had not posted any collateral related to the agreements.

Leases

Leases	12 Months Ended
	Dec. 31, 2013
Leases [Abstract]	'
Leases	'
	Leases
	Lessor:
	Minimum future rental receipts under the non-cancelable portion of tenant leases, assuming no new or re-negotiated leases, for the next five years and thereafter are as follows:
	Year ending	Total
	December 31,
	2014	$	362,743
	2015	334,370
	2016	303,455
	2017	272,390
	2018	249,645
	Thereafter	5,767,751
		$	7,290,354
	The above minimum lease payments do not include reimbursements to be received from tenants for certain operating expenses and real estate taxes and do not include early termination payments provided for in certain leases.
	Certain leases allow for the tenant to terminate the lease if the property is deemed obsolete, as defined, and upon payment of a termination fee to the landlord, as stipulated in the lease. In addition, certain leases provide the tenant with the right to purchase the leased property at fair market value or a stipulated price.
	Lessee:
	The Company holds, through property owner subsidiaries, leasehold interests in various properties. Generally, the ground rents on these properties are either paid directly by the tenants to the fee holder or reimbursed to the Company as additional rent. Certain properties are economically owned through the holding of industrial revenue bonds and as such neither ground lease payments nor bond debt service payments are made or received, respectively. For certain of these properties, the Company has an option to purchase the fee interest.
	Minimum future rental payments under non-cancelable leasehold interests, excluding leases held through industrial revenue bonds and lease payments in the future that are based upon fair market value, for the next five years and thereafter are as follows:
	Year ending	Total
	December 31,
	2014	$	5,229
	2015	5,203
	2016	4,907
	2017	4,861
	2018	4,645
	Thereafter	39,484
		$	64,329
	Rent expense for the leasehold interests, including discontinued operations, was $1,284, $1,198 and $776 in 2013, 2012 and 2011, respectively.
	The Company leases its corporate headquarters. The lease expires December 2015, with fixed rent of $1,153 per annum. The Company is also responsible for its proportionate share of operating expenses and real estate taxes above a base year. As an incentive to enter the lease, the Company received a payment of $845 which it is amortizing as a reduction of rent expense. In addition, the Company leases office space for its regional offices. The minimum lease payments for the Company's regional offices are $66 for 2014, $55 for 2015 and 2016 and $14 for 2017. Rent expense for 2013, 2012 and 2011 was $1,338, $1,029 and $1,392, respectively.

Concentration_of_Risk

Concentration of Risk	12 Months Ended
	Dec. 31, 2013
Concentration of Risk [Abstract]	'
Concentration Risk	'
	Concentration of Risk
	The Company seeks to reduce its operating and leasing risks through the geographic diversification of its properties, tenant industry diversification, avoidance of dependency on a single asset and the creditworthiness of its tenants. For the years ended December 31, 2013, 2012 and 2011, no single tenant represented greater than 10% of rental revenues.
	Cash and cash equivalent balances at certain institutions may exceed insurable amounts. The Company believes it mitigates this risk by investing in or through major financial institutions.

Equity

Equity	12 Months Ended
	Dec. 31, 2013
Equity [Abstract]	'
Equity	'
	Equity
	Shareholders' Equity:
	During 2013, 2012 and 2011, the Company issued 36,012,313, 18,289,557 and 11,109,760 common shares, respectively, through public offerings and under its direct share purchase plan, raising net proceeds of approximately $399,566, $164,429 and $98,953 respectively. During 2013, the Company implemented an At-The-Market offering program under which the Company may issue up to $100,000 in common shares over the term of this program. The Company issued 3,409,927 common shares under this program during 2013 and generated aggregate gross proceeds of $36,884. The proceeds from these issuances were primarily used for general working capital, to fund investments and retire indebtedness.
	The Company had 1,935,400 shares of Series C Cumulative Convertible Preferred Stock (“Series C Preferred”), outstanding at December 31, 2013. The shares have a dividend of $3.25 per share per annum, have a liquidation preference of $96,770, and the Company, if certain common share prices are achieved, can force conversion into common shares of the Company. As of the date of filing this Annual Report, each share is currently convertible into 2.4339 common shares. This conversion ratio may increase over time if the Company's common share dividend exceeds certain quarterly thresholds.
	If certain fundamental changes occur, holders may require the Company, in certain circumstances, to repurchase all or part of their shares of Series C Preferred. In addition, upon the occurrence of certain fundamental changes, the Company will, under certain circumstances, increase the conversion rate by a number of additional common shares or, in lieu thereof, may in certain circumstances elect to adjust the conversion rate upon the shares of Series C Preferred becoming convertible into shares of the public acquiring or surviving company.
	The Company may, at the Company's option, cause shares of Series C Preferred to be automatically converted into that number of common shares that are issuable at the then prevailing conversion rate. The Company may exercise its conversion right only if, at certain times, the closing price of the Company's common shares equals or exceeds 125% of the then prevailing conversion price of the Series C Preferred.
	Investors in shares of Series C Preferred generally have no voting rights, but will have limited voting rights if the Company fails to pay dividends for six or more quarters and under certain other circumstances. Upon conversion, the Company may choose to deliver the conversion value to investors in cash, common shares, or a combination of cash and common shares.
	During 2013, 2012 and 2011, the Company issued 1,893,409, 643,450 and 609,182 of its common shares, respectively, to certain employees and trustees. Typically, trustee share grants vest immediately. Employee share grants generally vest ratably, on anniversaries of the grant date, however, in certain situations vesting is cliff-based after a specific number of years and/or subject to meeting certain performance criteria (see note 16).
	During 2013, 2012 and 2011, the Company repurchased/redeemed and retired the following shares of its preferred stock:
			2013				2012				2011
	8.05% Series B Cumulative Redeemable Preferred Stock:
	Shares redeemed and retired		—				2,740,874				419,126
	Redemption cost (2012)(1)/repurchase cost (2011)		$	—			$	69,459			$	10,217
	Deemed dividend(2)		$	—			$	2,346			$	95
	6.50% Series C Cumulative Convertible Preferred Stock:
	Shares repurchased and retired		—				34,800				125,000
	Repurchase cost		$	—			$	1,462			$	5,239
	Discount (Deemed negative dividend)(2)		$	—			$	(229	)		$	(833	)
	7.55% Series D Cumulative Redeemable Preferred Stock:
	Shares redeemed and retired		6,200,000				—				—
	Redemption cost(1)		$	155,621			$	—			$	—
	Deemed dividend(2)		$	5,230			$	—			$	—
	-1	Includes accrued and unpaid dividends.
	-2	Represents the difference between the redemption/repurchase cost and historical GAAP cost. Accordingly, net income (loss) was adjusted for the deemed dividends/deemed negative dividends to arrive at net income (loss) attributable to common shareholders.
	Accumulated other comprehensive income (loss) as of December 31, 2013 and 2012 represented $4,439 and $(6,224), respectively, of unrealized gain (loss) on interest rate swaps, net.
	Changes in Accumulated Other Comprehensive Income (Loss)
			Gains and Losses
			on Cash Flow Hedges
	Balance December 31, 2012		$	(6,224	)
	Other comprehensive income before reclassifications		7,559
	Amounts of loss reclassified from accumulated other comprehensive loss to interest expense		3,104
	Balance December 31, 2013		$	4,439
	Noncontrolling Interests:
	In conjunction with several of the Company's acquisitions in prior years, sellers were issued OP units as a form of consideration. All OP units, other than OP units owned by the Company, are redeemable for common shares at certain times, at the option of the holders, and are generally not otherwise mandatorily redeemable by the Company. The OP units are classified as a component of permanent equity as the Company has determined that the OP units are not redeemable securities as defined by GAAP. Each OP unit is currently redeemable for approximately 1.13 common shares, subject to future adjustments.
	During 2013, 2012 and 2011, 202,241, 257,427 and 398,927 common shares, respectively, were issued by the Company, in connection with OP unit redemptions, for an aggregate value of $1,053, $1,343 and $2,187, respectively.
	Prior to the effective date of the LCIF and LCIF II merger (December 30, 2013), there were approximately 3,618,000 OP units outstanding other than OP units owned by the Company (see note 22). All OP units receive distributions in accordance with their respective partnership agreements. To the extent that the Company's dividend per common share is less than the stated distribution per OP unit per the applicable partnership agreement, the distributions per OP unit are reduced by the percentage reduction in the Company's dividend per common share. No OP units have a liquidation preference.
	The following discloses the effects of changes in the Company's ownership interests in its noncontrolling interests:
		Net Income (Loss) Attributable to Shareholders and Transfers from Noncontrolling Interests
		2013				2012				2011
	Net income (loss) attributable to Lexington Realty Trust shareholders	$	1,630			$	180,316			$	(79,584	)
	Transfers from noncontrolling interests:
	Increase in additional paid-in-capital for redemption of noncontrolling OP units	1,053				1,343				2,187
	Change from net income (loss) attributable to shareholders and transfers from noncontrolling interests	$	2,683			$	181,659			$	(77,397	)

Benefit_Plans

Benefit Plans	12 Months Ended
	Dec. 31, 2013
Employee Benefits and Share-based Compensation [Abstract]	'
Benefit Plans	'
	Benefit Plans
	The Company maintains an equity award plan pursuant to which qualified and non-qualified options may be issued. No common share options were issued in 2013, 2012 and 2011. The Company granted 1,248,501, 1,265,500 and 2,000,000 common share options on December 31, 2010 (“2010 options”), January 8, 2010 (“2009 options”) and December 31, 2008 (“2008 options”), respectively, at an exercise price of $7.95, $6.39 and $5.60, respectively. The 2010 options (1) vest 20% annually on each December 31, 2011 through 2015 and (2) terminate on the earlier of (x) six months of termination of service with the Company and (y) December 31, 2020. The 2009 options (1) vest 20% annually on each December 31, 2010 through 2014 and (2) terminate on the earlier of (x) six months of termination of service with the Company and (y) December 31, 2019. The 2008 options (1) vested 50% following a 20-day trading period where the average closing price of a common share of the Company on the New York Stock Exchange (“NYSE”) is $8.00 or higher and vested 50% following a 20-day trading period where the average closing price of a common share of the Company on the NYSE is $10.00 or higher, and (2) terminate on the earlier of (x) termination of service with the Company or (y) December 31, 2018. As a result of the share dividends paid in 2009, each of the 2008 options is exchangeable for approximately 1.13 common shares at an exercise price of $4.97 per common share.
	The Company engaged third parties to value the options as of each option's respective grant date. The third parties determined the value to be $2,422 and $2,771 for the 2010 options and 2009 options, respectively, using the Black-Scholes model and $2,480 for the 2008 options using the Monte Carlo model. The options are considered equity awards as they are settled through the issuance of common shares. As such, the options were valued as of the grant date and do not require subsequent remeasurement. There were several assumptions used to fair value the options including the expected volatility in the Company's common share price based upon the fluctuation in the Company's historical common share price. The more significant assumptions underlying the determination of fair value for options granted were as follows:
			2010 Options				2009 Options			2008 Options
	Weighted-average fair value of options granted		$	1.94			$	2.19		$	1.24
	Weighted-average risk-free interest rate		2.54		%		3.29		%	1.33		%
	Weighted-average expected option lives (in years)		6.5				6.7			3.6
	Weighted-average expected volatility		49		%		59.08		%	59.94		%
	Weighted-average expected dividend yield		7.4		%		6.26		%	14.4		%
	The Company recognizes compensation expense relating to these options over an average of 5.0 years for the 2010 options and 2009 options and 3.6 years for the 2008 options. The Company recognized $1,037, $1,197 and $1,384 in compensation expense in 2013, 2012 and 2011 respectively. The Company has unrecognized compensation costs of $1,518 relating to the outstanding options as of December 31, 2013. The intrinsic value of an option is the amount by which the market value of the underlying common share at the date the option is exercised exceeds the exercise price of the option. The total intrinsic value of options exercised for the years ended December 31, 2013, 2012 and 2011 were $8,607, $1,603 and $2,100, respectively.
	Share option activity during the years indicated is as follows:
		Number of			Weighted-Average
		Shares			Exercise Price
					Per Share
	Balance at December 31, 2010	4,389,605			$	6.23
	Exercised	(501,324	)		5.16
	Balance at December 31, 2011	3,888,281			6.36
	Exercised	(408,201	)		5.73
	Balance at December 31, 2012	3,480,080			6.44
	Exercised	(1,519,179	)		5.77
	Forfeited	(5,200	)		7.47
	Balance at December 31, 2013	1,955,701			$	6.95
	As of December 31, 2013, the aggregate intrinsic value of options that were outstanding and exercisable was $4,288.
	Non-vested share activity for the years ended December 31, 2013 and 2012, is as follows:
		Number of			Weighted-Average
		Shares			Value Per Share
	Balance at December 31, 2011	1,179,585			$	8.13
	Granted	606,500			9.75
	Vested	(320,639	)		8.86
	Balance at December 31, 2012	1,465,446			8.64
	Granted	1,829,400			10.52
	Vested	(770,229	)		7.14
	Forfeited	(3,571	)		9.21
	Balance at December 31, 2013	2,521,046			$	10.46
	As of December 31, 2013, of the remaining 2,521,046 non-vested shares, 2,445,906 are subject to time-based vesting and 75,140 are subject to performance-based vesting. At December 31, 2013, there are 3,486,552 awards available for grant. The Company has $22,426 in unrecognized compensation costs relating to the non-vested shares that will be charged to compensation expense over an average of approximately 4.4 years.
	The Company has established a trust for certain officers in which vested common shares granted for the benefit of the officers are deposited. The officers exert no control over the common shares in the trust and the common shares are available to the general creditors of the Company. As of December 31, 2013 and 2012, there were 427,531 common shares in the trust.
	The Company sponsors a 401(k) retirement savings plan covering all eligible employees. The Company makes a discretionary matching contribution on a portion of employee participant salaries and, based on its profitability, may make an additional discretionary contribution at each fiscal year end to all eligible employees. These discretionary contributions are subject to vesting under a schedule providing for 25% annual vesting starting with the first year of employment and 100% vesting after four years of employment. Approximately $298, $279 and $308 of contributions are applicable to 2013, 2012 and 2011, respectively.
	During 2013, 2012 and 2011, the Company recognized $7,145, $3,030 and $2,062, respectively, in expense relating to scheduled vesting and issuance of common share grants.

Related_Party_Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2013
Related Party Transactions [Abstract]	'
Related Party Transactions	'
	Related Party Transactions
	In addition to related party transactions discussed elsewhere in this Annual Report, the Company has an indemnity obligation to Vornado Realty Trust, one of its significant shareholders, with respect to actions by the Company that affect Vornado Realty Trust's status as a REIT.
	All related party acquisitions, sales and loans were approved by the independent members of the Company's Board of Trustees or the Audit Committee.
	During 2011, the Company advanced an aggregate $20,077 to NLS entities in the form of interest bearing, non-recourse mortgage notes to satisfy maturing non-recourse mortgages. These advances were satisfied in full in 2011.
	The Company leases certain properties to entities in which Vornado Realty Trust, a significant shareholder, has an interest. During 2013, 2012 and 2011, the Company recognized $744, $842 and $864, respectively, in rental revenue, including discontinued operations, from these properties. The Company leases its corporate office from an affiliate of Vornado Realty Trust. Rent expense for this property was $1,225, $919 and $1,281 in 2013, 2012 and 2011, respectively.
	In 2012, the Company's Board of Trustees granted a waiver of the Company's Code of Business Conduct and Ethics to allow the Company to enter into a joint venture with an affiliate of its Chairman, which intends to raise capital from foreign investors seeking entry into the United States of America. As of the date of filing this Annual Report, no joint venture agreement has been entered into by the Company with the affiliate of its Chairman.

Income_Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	Income Taxes
	The benefit (provision) for income taxes relates primarily to the taxable income of the Company's taxable REIT subsidiaries. The earnings, other than in taxable REIT subsidiaries, of the Company are not generally subject to federal income taxes at the Company level due to the REIT election made by the Company.
	Income taxes have been provided for on the asset and liability method. Under the asset and liability method, deferred income taxes are recognized for the temporary differences between the financial reporting basis and the tax basis of assets and liabilities.
	The Company's benefit (provision) for income taxes for the years ended December 31, 2013, 2012 and 2011 is summarized as follows:
		2013			2012			2011
	Current:
	Federal	$	(1,445	)	$	(371	)	$	(440	)
	State and local	(1,675		)	(1,156		)	(1,043		)
	NOL utilized	586			401			566
	Deferred:
	Federal	(595		)	141			1,399
	State and local	(130		)	45			400
		$	(3,259	)	$	(940	)	$	882
	Net deferred tax assets of $106 and $858 are included in other assets on the accompanying Consolidated Balance Sheets at December 31, 2013 and 2012, respectively. These net deferred tax assets relate primarily to differences in the timing of the recognition of income (loss) between GAAP and tax and net operating loss carry forwards.
	The income tax benefit (provision) differs from the amount computed by applying the statutory federal income tax rate to pre-tax operating income as follows:
		2013			2012			2011
	Federal provision at statutory tax rate (34%)	$	164		$	(573	)	$	(580	)
	State and local taxes, net of federal benefit	22			(110		)	(100		)
	Other	(3,445		)	(257		)	1,562
		$	(3,259	)	$	(940	)	$	882
	For the years ended December 31, 2013, 2012 and 2011, the “other” amount is comprised primarily of state taxes of $1,362, $1,042 and $917, respectively, the write-off of deferred tax liabilities (asset) of $(150), $0 and $3,535, respectively, and permanent differences of $1,936, $37, and $17, respectively, relating to the transfer of certain assets of the Company's taxable subsidiaries.
	As of December 31, 2013, the Company had no net operating loss carry forwards for income taxes and $1,635 as of December 31, 2012.
	A summary of the average taxable nature of the Company's common dividends for each of the years in the three-year period ended December 31, 2013, is as follows:
		2013			2012			2011
	Total dividends per share	$	0.6		$	0.525		$	0.46
	Ordinary income	35.53		%	95.68		%	47.33		%
	Qualifying dividend	4.11		%	0.99		%	1.11		%
	Capital gain	2.09		%	—			—
	25% rate gain	—			—			—
	Return of capital	58.27		%	3.33		%	51.56		%
		100		%	100		%	100		%
	A summary of the average taxable nature of the Company's dividend on shares of its Series B Cumulative Redeemable Preferred Stock for each of the years in the three-year period ended December 31, 2013, is as follows:
		2013			2012			2011
	Total dividends per share	$	—		$	1.341667		$	2.0125
	Ordinary income	—			98.98		%	97.7		%
	15% rate - qualifying dividend	—			1.02		%	2.3		%
	15% rate gain	—			—			—
	25% rate gain	—			—			—
		—			100		%	100		%
	A summary of the average taxable nature of the Company's dividend on shares of its Series C Preferred for each of the years in the three-year period ended December 31, 2013, is as follows:
		2013			2012			2011
	Total dividends per share	$	3.25		$	3.25		$	3.25
	Ordinary income	85.14		%	98.98		%	97.7		%
	Qualifying dividend	9.85		%	1.02		%	2.3		%
	Capital gain	5.01		%	—			—
	25% rate gain	—			—			—
	Return of capital	—			—			—
		100		%	100		%	100		%
	A summary of the average taxable nature of the Company's dividend on shares of its Series D Cumulative Redeemable Preferred Stock for the years in the three-year period ended December 31, 2013, is as follows:
		2013			2012			2011
	Total dividends per share	$	1.043368		$	1.8875		$	1.76498	-1
	Ordinary income	85.14		%	98.98		%	97.7		%
	Qualifying dividend	9.85		%	1.02		%	2.3		%
	Capital gain	5.01		%	—			—
	25% rate gain	—			—			—
		100		%	100		%	100		%
	_________
	(1)Of the total dividend paid in January 2011, $0.12252 was allocated to 2010 and $0.349355 was allocated to 2011.

Commitments_and_Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	Commitments and Contingencies
	In addition to the commitments and contingencies disclosed elsewhere, the Company has the following commitments and contingencies.
	The Company is obligated under certain tenant leases, including its proportionate share for leases for non-consolidated entities, to fund the expansion of the underlying leased properties. The Company, under certain circumstances, may guarantee to tenants the completion of base building improvements and the payment of tenant improvement allowances and lease commissions on behalf of its subsidiaries. As of December 31, 2013, the Company had three outstanding guarantees for (1) the completion of the base building improvements and the payment of a related tenant improvement allowance for an office property in Orlando, Florida, which the unfunded amounts were estimated to be $57, (2) the payment of a tenant improvement allowance of $234 for a property in Allen, Texas and (3) the full payment of the base building improvement, tenant improvement allowance and lease commissions for an office property in Herndon, Virginia, which the unfunded amounts were estimated to be $2,077.
	From time to time, the Company is directly or indirectly involved in legal proceedings arising in the ordinary course of business. Management believes, based on currently available information, and after consultation with legal counsel, that although the outcomes of those normal course proceedings are uncertain, the results of such proceedings, in the aggregate, will not have a material adverse effect on the Company's business, financial condition and results of operations.
	Other. Four of our executive officers have employment contracts and are entitled to severance benefits upon termination by the Company without cause or termination by the executive officer with good reason, in each case, as defined in the employment contract.

Supplemental_Disclosure_of_Sta

Supplemental Disclosure of Statement of Cash Flow Information	12 Months Ended
	Dec. 31, 2013
Supplemental Cash Flow Elements [Abstract]	'
Supplemental Disclosure of Statement of Cash Flow Information	'
	Supplemental Disclosure of Statement of Cash Flow Information
	In addition to disclosures discussed elsewhere, during 2013, 2012 and 2011, the Company paid $92,788, $101,262 and $103,427, respectively, for interest and $4,666, $1,018 and $1,289, respectively, for income taxes.
	During 2013, the Company sold its interests in two properties, which included the assumption of the related non-recourse mortgage debt of $40,356. In addition, the Company conveyed its interests in four properties to lenders in full satisfaction of the aggregate $49,510 non-recourse mortgage notes payable.
	During 2012, the Company sold its interest in a property, which included the assumption of the related non-recourse mortgage debt of $8,921. In addition, the Company conveyed its interests in two properties to lenders in full satisfaction of the aggregate $12,409 non-recourse mortgage notes payable.
	In October 2011, the Company acquired control of a joint venture, Pemlex LLC, and recorded land and building assets of $9,006, lease intangible assets of $6,294, other assets, net, of $107 and a $574 noncontrolling interest.
	During 2011, the Company sold interests in three properties, which included the assumption of the aggregate related non-recourse debt of $28,648 and $3,003 in seller financing.

Unaudited_Quarterly_Financial_

Unaudited Quarterly Financial Data	12 Months Ended
	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]	'
Unaudited Quarterly Financial Data	'
	Unaudited Quarterly Financial Data
		2013
		3/31/13			6/30/13			9/30/13		12/31/13
	Total gross revenues(1)	$	94,121		$	97,763		$	96,950	$	109,606
	Net income (loss)	$	(2,123	)	$	7,832		$	5,155	$	(7,001	)
	Net income (loss) attributable to common shareholders	$	(7,295	)	$	(849	)	$	2,978	$	(8,923	)
	Net income (loss) attributable to common shareholders - basic per share	$	(0.04	)	$	—		$	0.01	$	(0.04	)
	Net income (loss) attributable to common shareholders - diluted per share	$	(0.04	)	$	—		$	0.01	$	(0.04	)
		2012
		3/31/12			6/30/12			9/30/12		12/31/12
	Total gross revenues(1)	$	75,360		$	78,961		$	83,800	$	92,059
	Net income (loss)	$	5,478		$	5,626		$	175,289	$	(1,755	)
	Net income (loss) attributable to common shareholders	$	(2,187	)	$	(3,392	)	$	168,943	$	(7,039	)
	Net income (loss) attributable to common shareholders - basic per share	$	(0.01	)	$	(0.02	)	$	1.09	$	(0.04	)
	Net income (loss) attributable to common shareholders - diluted per share	$	(0.01	)	$	(0.02	)	$	0.96	$	(0.04	)
	_____________
	(1) All periods have been adjusted to reflect the impact of properties sold during the years ended December 31, 2013 and 2012, and properties classified as held for sale, which are reflected in discontinued operations in the Consolidated Statements of Operations.
	The sum of the quarterly income (loss) attributable to common shareholders and per common share amounts may not equal the full year amounts primarily because the computations of amounts allocated to participating securities and the weighted-average number of common shares of the Company outstanding for each quarter and the full year are made independently.

Subsequent_Events

Subsequent Events	12 Months Ended
	Dec. 31, 2013
Subsequent Events [Abstract]	'
Subsequent Events	'
	Subsequent Events
	Subsequent to December 31, 2013 and in addition to disclosures elsewhere in the financial statements:
	•	the Company acquired the completed 813,000 square foot industrial property in Rantoul, Illinois for an approximate capitalized cost of $41,100;
	•	the Company purchased an office property in Parachute, Colorado for $13,928. The property is subject to an approximate 19-year net lease;
	•	the Company borrowed $99,000 on the unsecured term loan and entered into an interest rate swap agreement to fix the LIBOR component at a rate of 1.155% through February 2018;
	•	the Company entered into a forward commitment to acquire a build-to-suit office property in Auburn Hills, Michigan for $40,025. The property will be subject to a 14-year net lease;
	•	the Company repaid all outstanding borrowings on its line of credit; and
	•	in connection with the merger of LCIF II with and into LCIF, former LCIF II partners representing 170,193 OP units elected or were deemed to elect to receive $1,962 in aggregate cash for such OP units.

Schedule_III_Real_Estate_and_A

Schedule III - Real Estate and Accumulated Depreciation and Amortization	12 Months Ended
	Dec. 31, 2013
SEC Schedule III, Real Estate and Accumulated Depreciation Disclosure [Abstract]	'
Real Estate and Accumulated Depreciation Disclosure	'
	Description	Location		Encumbrances			Land and Land Estates			Buildings and Improvements			Total			Accumulated Depreciation and Amortization			Date Acquired	Date Constructed	Useful life computing depreciation in latest income statement (years)
	Office	Little Rock, AR		$	—		$	1,353		$	2,260		$	3,613		$	434		6-Dec	1980	40
	Office	Pine Bluff, AR		—			271			603			874			93			12-Sep	1964/1972/	3, 4 & 13
																				1988
	Office	Glendale, AZ		—			9,418			8,260			17,678			870			12-Sep	1986/1997/	7, 20 & 24
																				2000
	Office	Phoenix, AZ		—			4,666			19,966			24,632			7,659			May-00	1997	6 & 40
	Office	Tempe, AZ		—			—			12,148			12,148			566			12-Sep	1998	10, 11, 15 & 36
	Office	Tucson, AZ		—			681			4,037			4,718			232			12-Sep	1988	7, 10 & 30
	Office	Brea, CA		—			37,269			50,441			87,710			14,667			7-Jun	1983	10 & 40
	Office	Lake Forest, CA		—			3,442			13,769			17,211			4,059			2-Mar	2001	40
	Office	Palo Alto, CA		58,256			12,398			16,977			29,375			16,931			6-Dec	1973/1982	40
	Office	Centenial, CO		—			4,851			15,187			20,038			4,691			7-May	2001/2002	10 & 40
	Office	Colorado Springs, CO		10,008			2,748			12,554			15,302			3,532			7-Jun	1980/2002	40
	Office	Lakewood, CO		—			1,569			8,857			10,426			4,874			5-Apr	2002	2, 3, 12 & 40
	Office	Louisville, CO		—			3,657			9,605			13,262			2,164			8-Sep	1987/2006	8, 9 & 40
	Office	Wallingford, CT		—			1,049			4,773			5,822			1,292			3-Dec	1977/1993	8 & 40
	Office	Boca Raton, FL		20,101			4,290			17,160			21,450			4,666			3-Feb	1983/2002	40
	Office	Fort Meyers, FL		—			795			2,941			3,736			359			5-Apr	1998	5, 10 & 32
	Office	Lake Mary, FL		—			4,535			14,830			19,365			4,302			7-Jun	1996	4, 7 & 40
	Office	Lake Mary, FL		—			4,438			15,103			19,541			4,280			7-Jun	1999	4, 7 & 40
	Office	Orlando, FL		9,748			3,538			9,046			12,584			4,049			7-Jan	2003	5, 12 & 40
	Office	Orlando, FL		—			586			35,012			35,598			6,359			6-Dec	1982	40
	Office	Palm Beach Gardens, FL		—			4,066			17,212			21,278			5,467			May-98	1996	Aug-40
	Office	Tampa, FL		—			2,018			7,950			9,968			529			12-Sep	1986	8 & 27
	Office	Atlanta, GA		—			1,014			269			1,283			233			6-Dec	1972	40
	Office	Atlanta, GA		—			870			187			1,057			190			6-Dec	1975	40
	Office	Chamblee, GA		—			770			186			956			191			6-Dec	1972	40
	Office	Cumming, GA		—			1,558			1,368			2,926			521			6-Dec	1968/1982	40
	Office	Forest Park, GA		—			668			1,242			1,910			352			6-Dec	1969	40
	Office	Jonesboro, GA		—			778			146			924			167			6-Dec	1971	40
	Office	McDonough, GA		—			693			6,405			7,098			343			12-Sep	2007	6, 11 & 40
	Office	Stone Mountain, GA		—			672			276			948			172			6-Dec	1973	40
	Office	Clive, IA		—			1,158			—			1,158			—			4-Jun	N/A	N/A
	Office	Meridian, ID		10,156			2,255			7,797			10,052			535			12-Sep	2004	7 & 37
	Office	Chicago, IL		29,730			5,155			46,180			51,335			13,497			7-Jun	1986	15 & 40
	Office	Lisle, IL		9,767			3,236			13,692			16,928			3,175			6-Dec	1984	3 & 40
	Office	Schaumburg, IL		—			5,007			21,553			26,560			357			13-Oct	1979/1989/	7, 9 & 30
																				2010
	Office	Columbus, IN		—			235			45,729			45,964			8,379			6-Dec	1980/2006	40
	Office	Fishers, IN		—			2,808			19,360			22,168			4,830			7-Jun	1999	Mar-40
	Office	Indianapolis, IN		11,564			1,700			17,918			19,618			11,325			5-Apr	1999	Jun-40
	Office	Lenexa, KS		10,232			2,828			6,075			8,903			384			12-Sep	2004	7, 12 & 37
	Office	Overland Park, KS		35,297			4,769			41,956			46,725			10,188			7-Jun	1980/2005	12 & 40
	Office	Baton Rouge, LA		—			1,252			10,919			12,171			2,813			7-May	1997	4, 6 & 40
	Office	Boston, MA		12,764			3,814			16,040			19,854			2,661			7-Mar	1910	10 & 40
	Office	Foxboro, MA		—			2,231			25,653			27,884			11,753			4-Dec	1982/1987	16 & 40
	Office	Oakland, ME		9,259			551			8,774			9,325			480			12-Sep	2005	8, 12 & 40
	Office	Southfield, MI		—			—			12,124			12,124			6,695			4-Jul	1966/1989	7, 16 & 40
	Office	Kansas City, MO		16,831			2,433			20,154			22,587			4,877			7-Jun	1963/2003	12 & 40
	Office	Pascagoula, MS		—			618			3,677			4,295			307			12-Sep	1995	1, 9 & 31
	Office	Bridgewater, NJ		14,292			1,415			6,802			8,217			—			6-Dec	1985/2004	8, 15 & 40
	Office	Rockaway, NJ		14,900			4,646			20,428			25,074			4,536			6-Dec	2002/2004	40
	Office	Wall, NJ		21,847			8,985			26,961			35,946			10,467			4-Jan	1983	22 & 40
	Office	Whippany, NJ		14,578			4,063			19,711			23,774			5,776			6-Nov	2006/2008	20 & 40
	Office	Rochester, NY	-2	17,544			645			26,042			26,687			4,929			6-Dec	1988/2000	8, 10, 15 & 40
	Office	Milford, OH		—			3,124			16,140			19,264			4,798			7-Jun	1991/1998	May-40
	Description	Location			Encumbrances			Land and Land Estates			Buildings and Improvements			Total			Accumulated Depreciation and Amortization			Date Acquired		Date Constructed	Useful life computing depreciation in latest income statement (years)
	Office	Westerville, OH			—			2,085			9,265			11,350			2,197			7-May		2000	40
	Office	Redmond, OR			—			2,064			8,316			10,380			478			12-Sep		2004	6, 13 & 40
	Office	Canonsburg, PA			9,092			1,055			10,910			11,965			3,392			7-May		1996	8 & 40
	Office	Harrisburg, PA			8,044			900			10,676			11,576			7,704			5-Apr		1998	2, 9, 15 & 40
	Office	Philadelphia, PA			43,989			13,209			55,289			68,498			26,401			5-Jun		1957/1997	Apr-40
Office	Charleston, SC			7,350			1,189			8,724			9,913			2,707			6-Nov		2005	40
Office	Rock Hill, SC			—			551			4,313			4,864			288			11-May		2006	40
Office	Kingsport, TN			—			513			403			916			61			12-Sep		1981	5, 6 & 14
Office	Knoxville, TN			—			621			6,282			6,903			411			12-Sep		2002	1, 5, 7 & 40
Office	Memphis, TN			3,686			464			4,467			4,931			1,313			6-Nov		1871/1999	20 & 40
Office	Memphis, TN			—			5,291			97,032			102,323			17,689			6-Dec		1985/2007	13 & 40
Office	Carrollton, TX			12,341			1,789			18,157			19,946			7,078			4-Jun		2003	19 & 40
Office	Carrollton, TX			19,130			3,427			22,050			25,477			6,231			7-Jun		2003	8 & 40
Office	Farmers Branch, TX			18,435			3,984			27,308			31,292			7,874			7-Jun		2000	40
Office	Garland, TX			—			2,218			8,473			10,691			835			12-Sep		1980	4, 5 & 18
Office	Houston, TX			—			1,875			10,732			12,607			5,481			5-Apr		2000	4, 5, 13 & 40
Office	Houston, TX			11,620			1,500			14,683			16,183			6,912			5-Apr		2003	14, 15 & 40
Office	Houston, TX			14,866			800			26,962			27,762			14,771			5-Apr		2000	10, 11, 20 & 40
Office	Houston, TX			3,453			490			2,813			3,303			376			12-Sep		1982/1999	3, 9 & 25
Office	Irving, TX			—			7,476			43,932			51,408			13,661			7-May		2003	Jun-40
Office	Irving, TX			—			4,889			29,701			34,590			8,465			7-Jun		1999	12 & 40
Office	Mission, TX			5,571			2,556			2,911			5,467			267			12-Sep		2003	3, 8 & 35
Office	San Antonio, TX			11,515			2,800			15,585			18,385			9,218			5-Apr		2000	6, 11 & 40
Office	Temple, TX			8,253			227			8,181			8,408			583			12-Sep		2001	3, 10, 12 & 40
Office	Westlake, TX			—			2,361			23,221			25,582			7,288			7-May		2001	Apr-40
Office	Glen Allen, VA			12,222			1,543			19,503			21,046			6,917			7-Jun		2000	May-40
Office	Hampton, VA			—			2,333			10,683			13,016			3,709			Mar-00		1999	5, 10 & 40
Office	Herndon, VA			—			5,127			24,640			29,767			7,818			Dec-99		1987	Sep-40
Office	Herndon, VA			10,686			9,409			12,853			22,262			4,041			7-Jun		1985/1999	40
Office	Midlothian, VA			9,339			1,100			12,685			13,785			5,550			5-Apr		2000	6, 7, 15 & 40
Office	Bremerton, WA			6,164			1,655			5,445			7,100			366			12-Sep		2002	4, 13 & 40
Office	Issaquah, WA		-3	30,714			5,126			13,778			18,904			4,414			7-Jun		1987	3, 6, 8 & 40
Office	Issaquah, WA		-3	—			6,268			16,058			22,326			4,969			7-Jun		1992	8 & 40
Long Term Lease - Office	Phoenix, AZ			—			5,585			36,099			41,684			1,083			12-Dec		1986/2011	10, 17, & 40
Long Term Lease - Office	Tempe, AZ			7,520			—			9,442			9,442			2,310			5-Dec		1998	30 & 40
Long Term Lease - Office	Englewood, CO			—			2,207			27,851			30,058			780			13-Apr		2013	15, 19 & 40
Long Term Lease - Office	Orlando, FL			—			11,498			66,673			78,171			36,411			6-Dec		1984/2012	3, 5, 10,13 & 25
Long Term Lease - Office	Tampa, FL			—			895			5,496			6,391			14			13-Dec		1999	20 & 38
Long Term Lease - Office	Tampa, FL			—			146			559			705			2			13-Dec		1999	20 & 35
Long Term Lease - Specialty	Albany, GA			—			1,468			5,607			7,075			30			13-Oct		2013	15 & 40
Long Term Lease - Office	McDonough, GA			11,690			1,443			11,234			12,677			597			12-Sep		1999	3, 11 & 38
Long Term Lease - Office	Lenexa, KS			39,871			6,909			41,615			48,524			8,124			8-Jul		2007	5, 14, 15 & 40
Long Term Lease - Industrial	Dry Ridge, KY		-4	3,393			560			12,553			13,113			3,708			5-Jun		1988/1999	22 & 40
Long Term Lease - Industrial	Elizabethtown, KY		-5	13,144			890			26,868			27,758			7,937			5-Jun		1995/2001	25 & 40
Long Term Lease - Industrial	Elizabethtown, KY		-5	2,473			352			4,862			5,214			1,437			5-Jun		2001	25 & 40
Long Term Lease - Industrial	Hopkinsville, KY			7,684			631			16,154			16,785			5,015			5-Jun		1987/2006	25 & 40
Long Term Lease - Industrial	Owensboro, KY		-4	2,919			393			11,956			12,349			3,992			5-Jun		1998/2001	25 & 40
Long Term Lease - Industrial	Shreveport, LA			19,000			860			21,840			22,700			3,708			7-Mar		2006	40
Long Term Lease - Office	Foxboro, MA			—			3,791			5,405			9,196			893			12-Sep		1965/1967/	2, 6 & 20
																					1971
Long Term Lease - Office	Livonia, MI			—			935			13,714			14,649			984			12-Sep		1987/1988/	Feb-34
																					1990
Long Term Lease - Office	St Joseph, MO			—			607			14,004			14,611			588			12-Sep		2012	15 & 40
Long Term Lease - Industrial	Byhalia, MS			15,000			1,006			21,483			22,489			1,432			11-May		2011	40
Long Term Lease - Industrial	Shelby, NC			—			1,421			18,862			20,283			1,766			11-Jun		2011	11, 20 & 40
Long Term Lease - Office	Omaha, NE			—			2,058			32,343			34,401			—			13-Dec		2013	20 & 40
Long Term Lease - Office	Omaha, NE			7,962			2,566			8,324			10,890			2,057			5-Nov		1995	30 & 40
Description	Location			Encumbrances			Land and Land Estates			Buildings and Improvements			Total			Accumulated Depreciation and Amortization			Date Acquired		Date Constructed	Useful life computing depreciation in latest income statement (years)
Long Term Lease - Industrial	Durham, NH			—			3,464			18,094			21,558			4,198			7-Jun		1986/2003	40
Long Term Lease - Office	Las Vegas, NV			—			12,099			53,164			65,263			9,511			6-Dec		1983/1994	40
Long Term Lease - Industrial	Long Island City, NY			—			—			42,624			42,624			2,357			13-Mar		2013	15
Long Term Lease - Land	New York, NY		-6	69,330			73,148			—			73,148			—			13-Oct		N/A	N/A
Long Term Lease - Land	New York, NY		-6	80,893			86,569			—			86,569			—			13-Oct		N/A	N/A
Long Term Lease - Land	New York, NY		-6	63,277			65,218			—			65,218			—			13-Oct		N/A	N/A
Long Term Lease - Industrial	Chillicothe, OH			—			735			9,021			9,756			999			11-Oct		1995/1998	6, 15 & 26
Long Term Lease - Industrial	Cincinnati, OH			—			1,049			8,784			9,833			1,497			6-Dec		1991	10, 14 & 40
Long Term Lease - Office	Columbus, OH			—			1,594			10,481			12,075			786			10-Dec		2005	40
Long Term Lease - Office	Columbus, OH			—			432			2,773			3,205			173			11-Jul		1999/2006	40
Long Term Lease - Industrial	Glenwillow, OH			15,865			2,228			24,530			26,758			4,673			6-Dec		1996	40
Long Term Lease - Office	Eugene, OR			—			1,541			13,098			14,639			459			12-Dec		2012	7, 12, 15, 25 & 40
Long Term Lease - Industrial	Bristol, PA			—			2,508			15,863			18,371			4,902			Mar-98		1983/1987	10, 16, 30 & 40
Long Term Lease - Office	Jessup, PA			—			2,520			17,678			20,198			991			12-Aug		2012	13, 15 & 40
Long Term Lease - Industrial	Chester, SC			9,952			1,629			8,470			10,099			413			12-Sep		2001/2005	9, 13 & 34
Long Term Lease - Office	Florence, SC			—			774			3,629			4,403			202			12-Feb		2012	12 & 40
Long Term Lease - Office	Fort Mill, SC			—			1,798			26,038			27,836			12,503			4-Nov		2004	11, 15 & 40
Long Term Lease - Office	Fort Mill, SC			—			3,601			15,340			18,941			4,066			2-Dec		2002	5, 11, 20 & 40
Long Term Lease - Office	Knoxville, TN			6,867			1,079			11,072			12,151			5,027			5-Mar		1997	11, 14 & 40
Long Term Lease - Office	Allen, TX			—			5,591			25,421			31,012			3,686			11-May		1981/1983	6, 7, 11 & 25
Long Term Lease - Office	Arlington, TX			—			1,274			13,817			15,091			1,040			12-Sep		2003	1, 12 & 40
Long Term Lease - Industrial	Houston, TX			—			15,055			57,949			73,004			1,353			13-Mar		Various	11, 12, 16 & 35
Long Term Lease - Office	Houston, TX			—			481			2,352			2,833			8			13-Dec		2002	11, 20 & 31
Long Term Lease - Office	Houston, TX			29,706			16,613			58,226			74,839			12,841			4-Mar		1976/1984	10 & 40
Long Term Lease - land/infrastructure	Missouri City, TX			—			14,555			5,895			20,450			1,404			12-Apr		N/A	7
Long Term Lease - Specialty	Tomball, TX			9,102			3,174			7,405			10,579			375			12-Sep		2005	13, 14 & 40
Long Term Lease - Land	Danville, VA			—			3,453			—			3,453			—			13-Oct		N/A	N/A
Long Term Lease - Retail	Edmonds, WA			—			—			3,947			3,947			814			6-Dec		1981	40
Long Term Lease - Industrial	Eau Claire, WI			—			421			5,590			6,011			317			12-Sep		1993/2004	10, 15 & 28
Long Term Lease - Office	Huntington, WV			6,500			1,368			9,527			10,895			621			12-Jan		2011	14 & 40
Industrial	Moody, AL			—			654			9,943			10,597			5,160			4-Feb		2004	15 & 40
Industrial	Jacksonville, FL			—			573			1,592			2,165			308			12-Sep		1959/1967	Jan-40
Industrial	Orlando, FL			—			1,030			10,869			11,899			2,145			6-Dec		1980	40
Industrial	Tampa, FL			—			2,160			7,347			9,507			5,456			Jul-88		1986	Sep-40
Industrial	Lavonia, GA			8,251			171			7,657			7,828			288			12-Sep		2005	8, 12 & 40
Industrial	McDonough, GA			22,782			2,463			24,291			26,754			4,519			6-Dec		2000/2007	40
Industrial	Des Moines, IA			—			1,528			14,247			15,775			781			12-Sep		2000	5, 11 & 34
Industrial	Dubuque, IA			9,520			2,052			8,443			10,495			2,305			3-Jul		2001	11, 12 & 40
Industrial	Rockford, IL		-2	—			371			2,573			2,944			529			6-Dec		1998	40
Industrial	Rockford, IL		-2	6,439			509			5,289			5,798			1,015			6-Dec		1992	40
Industrial	Plymouth, IN			6,032			254			7,969			8,223			392			12-Sep		2000/2003	3, 6 & 34
Industrial	Owensboro, KY			—			819			2,439			3,258			704			6-Dec		1975/1995	40
Industrial	Shreveport, LA			—			1,078			10,134			11,212			559			12-Jun		2012	8,10 & 40
Industrial	North Berwick, ME			7,433			1,383			32,397			33,780			5,923			6-Dec		1965/1980	10 & 40
Industrial	Kalamazoo, MI			15,901			1,942			14,169			16,111			759			12-Sep		1999/2004	8, 9 & 40
Industrial	Marshall, MI			—			143			4,302			4,445			630			12-Sep		1968/1972/	4, 6 & 10
																					2008
Industrial	Marshall, MI			—			40			900			940			648			Aug-87		1979	12, 20 & 40
Industrial	Plymouth, MI			—			2,296			13,398			15,694			4,160			7-Jun		1996/1998	40
Industrial	Temperance, MI			—			3,040			14,924			17,964			3,304			7-Jun		1978/1993	2, 5 & 40
Industrial	Minneapolis, MN			—			1,886			1,922			3,808			81			12-Sep		2003	3, 29 & 40
Industrial	Olive Branch, MS			—			198			10,276			10,474			6,260			4-Dec		1989	8, 15 & 40
Industrial	Franklin, NC			320			296			1,320			1,616			86			12-Sep		1996	2, 8 & 29
Description	Location			Encumbrances			Land and Land Estates			Buildings and Improvements			Total			Accumulated Depreciation and Amortization			Date Acquired		Date Constructed	Useful life computing depreciation in latest income statement (years)
Industrial	Henderson, NC			—			1,488			5,953			7,441			1,805			1-Nov		1998/2006	40
Industrial	High Point, NC			—			1,330			11,183			12,513			4,696			4-Jul		2002	18 & 40
Industrial	Lumberton, NC			—			405			12,049			12,454			2,713			6-Dec		1998/2006	40
Industrial	Statesville, NC		-2	13,158			891			16,771			17,662			3,767			6-Dec		1999/2002	3, 15 & 40
Industrial	Erwin, NY			8,720			1,648			10,810			12,458			543			12-Sep		2006	4, 8 & 34
Industrial	Columbus, OH			—			1,990			10,580			12,570			2,435			6-Dec		1973	40
Industrial	Hebron, OH			—			1,063			4,271			5,334			1,286			Dec-97		1999	40
Industrial	Hebron, OH			—			1,681			7,184			8,865			2,389			1-Dec		2000	1, 2, 5 & 40
Industrial	Streetsboro, OH			18,223			2,441			25,092			27,533			5,666			7-Jun		2004	12, 20, 25 & 40
Industrial	Duncan, SC			—			884			8,626			9,510			1,486			7-Jun		2005/2008	40
Industrial	Laurens, SC			—			5,552			21,177			26,729			4,768			7-Jun		1991/1993	2, 5 & 40
Industrial	Collierville, TN			—			714			4,783			5,497			1,224			5-Dec		1984/2012	9, 14, 21 & 40
Industrial	Crossville, TN			—			545			6,999			7,544			2,806			6-Jan		1989/2006	17 & 40
Industrial	Franklin, TN			—			—			5,673			5,673			686			12-Sep		1970/1983	1, 4 & 12
Industrial	Memphis, TN			—			1,054			11,538			12,592			11,366			Feb-88		1987	8 &15
Industrial	Memphis, TN			—			1,553			12,326			13,879			2,653			6-Dec		1973	40
Industrial	Millington, TN			—			723			19,383			20,106			8,305			5-Apr		1997	9, 10, 16 & 40
Industrial	San Antonio, TX			—			2,482			38,535			41,017			17,553			4-Jul		2001	17 & 40
Industrial	Waxahachie, TX			—			652			13,045			13,697			9,190			3-Dec		1996/2000	10, 16 & 40
Industrial	Winchester, VA			—			3,823			12,276			16,099			2,765			7-Jun		2001	4 & 40
Multi-tenanted	Phoenix, AZ			—			1,831			14,892			16,723			1,939			1-Nov		1981/2009	May-40
Multi-tenanted	Los Angeles, CA			10,281			5,110			10,911			16,021			5,835			4-Dec		2000	13 & 40
Multi-tenanted	Palm Beach Gardens, FL			—			787			2,894			3,681			1,156			May-98		1996	Aug-40
Multi-tenanted	Honolulu, HI			—			8,259			7,350			15,609			1,301			6-Dec		1979/2002	5 & 40
Multi-tenanted	Baltimore, MD			55,000			37,564			155,859			193,423			40,865			6-Dec		1973/2009	May-40
Multi-tenanted	Bridgeton, MO			—			1,853			4,469			6,322			867			6-Dec		1981	40
Multi-tenanted	Cary, NC			—			5,342			15,183			20,525			5,073			7-Jun		1999	2, 20 & 40
Multi-tenanted	Allentown, PA			—			1,052			1,503			2,555			179			12-Sep		1980	5, 9 & 18
Multi-tenanted	Florence, SC			—			3,235			13,081			16,316			3,869			4-May		1998	10, 20 & 40
Multi-tenanted	Antioch, TN			—			3,847			10,043			13,890			995			7-May		1999	May-40
Multi-tenanted	Johnson City, TN			—			1,214			9,748			10,962			1,696			6-Dec		1979	9, 10, 20, 25 & 40
Multi-tenanted	Arlington, TX			—			589			6,382			6,971			480			12-Sep		2003	1, 12 & 40
Multi-tenanted	Houston, TX			—			1,875			10,579			12,454			5,477			5-Apr		2000	4, 5, 13 & 40
Multi-tenanted	Glen Allen, VA			6,473			818			10,330			11,148			3,663			7-Jun		2000	May-40
Retail	Manteca, CA			856			2,082			6,464			8,546			1,318			7-May		1993	23 & 40
Retail	San Diego, CA			546			—			13,310			13,310			2,286			7-May		1993	23 & 40
Retail	Port Richey, FL			—			1,376			1,664			3,040			532			6-Dec		1980	40
Retail	Galesburg, IL			480			560			2,366			2,926			566			7-May		1992	12 & 40
Retail	Lawrence, IN			—			404			1,737			2,141			313			6-Dec		1983	40
Retail	Billings, MT			—			273			1,775			2,048			184			6-Dec		1981	4, 19, & 36
Retail	Jefferson, NC			—			71			884			955			179			6-Dec		1981	40
Retail	Lexington, NC			—			832			1,429			2,261			251			6-Dec		1981	40
Retail	Thomasville, NC			—			208			561			769			40			6-Dec		1993	40
Retail	Port Chester, NY			—			3,841			5,246			9,087			237			6-Dec		1982	40
Retail	Watertown, NY			805			386			5,162			5,548			1,115			7-May		1993	23 & 40
Retail	Canton, OH			—			884			3,534			4,418			1,071			1-Nov		1995	40
Retail	Franklin, OH			—			722			999			1,721			71			6-Dec		1961/1978	40
Retail	Lorain, OH			1,212			1,893			7,024			8,917			1,433			7-May		1993	23 & 40
Retail	Lawton, OK			—			663			1,288			1,951			343			6-Dec		1984	40
Retail	Oklahoma City, OK			—			1,782			912			2,694			179			12-Sep		1991/1996	5 & 13
Retail	Tulsa, OK			—			447			2,432			2,879			2,198			Dec-96		1981	14 & 24
Retail	Moncks Corner, SC			—			13			1,510			1,523			285			6-Dec		1982	40
Retail	Chattanooga, TN			—			487			956			1,443			67			6-Dec		1983/1995	40
Retail	Paris, TN			—			247			547			794			140			6-Dec		1982	40
Description	Location			Encumbrances			Land and Land Estates			Buildings and Improvements			Total			Accumulated Depreciation and Amortization			Date Acquired		Date Constructed	Useful life computing depreciation in latest income statement (years)
Retail	Dallas, TX			—			861			2,362			3,223			282			6-Dec		1960	40
Retail	Staunton, VA			—			1,028			326			1,354			82			6-Dec		1971	40
Retail	Fairlea, WV			565			501			1,985			2,486			381			7-May		1993/1999	12 & 40
Construction in progress				—			—			—			4,306			—			—
	Subtotal			1,188,489			793,418			3,014,570			3,812,294			775,617
	(1	)		9,000
				$	1,197,489		$	793,418		$	3,014,570		$	3,812,294		$	775,617
-1	Property is classified as a capital lease.
-2	Properties are cross-collateralized.
-3	Properties are cross-collateralized.
-4	Properties are cross-collateralized.
-5	Properties are cross-collateralized.
-6	Properties are cross-collateralized.
(A) The initial cost includes the purchase price paid directly or indirectly by the Company. The total cost basis of the Company's properties at December 31, 2013 for federal income tax purposes was approximately $4.6 billion.
	2013				2012				2011
Reconciliation of real estate, at cost:
Balance at the beginning of year	$	3,564,466			$	3,172,246			$	3,363,586
Additions during year	492,437				540,847				143,382
Properties sold during year	(212,771		)		(138,041		)		(230,397		)
Properties impaired during the year	(31,741		)		(10,553		)		(103,727		)
Other reclassifications	(97		)		(33		)		(598		)
Balance at end of year	$	3,812,294			$	3,564,466			$	3,172,246
Reconciliation of accumulated depreciation and amortization:
Balance at the beginning of year	$	738,068			$	638,368			$	601,239
Depreciation and amortization expense	122,057				119,067				114,247
Accumulated depreciation and amortization of properties sold and impaired during year	(84,508		)		(19,367		)		(76,939		)
Other reclassifications	—				—				(179		)
Balance at end of year	$	775,617			$	738,068			$	638,368

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Basis of Presentation and Consolidation, Policy [Policy Text Block]	'
	Basis of Presentation and Consolidation. The Company's consolidated financial statements are prepared on the accrual basis of accounting in accordance with U.S. generally accepted accounting principles (“GAAP”). The financial statements reflect the accounts of the Company and its consolidated subsidiaries. The Company consolidates its wholly-owned subsidiaries, partnerships and joint ventures which it controls (i) through voting rights or similar rights or (ii) by means other than voting rights if the Company is the primary beneficiary of a variable interest entity ("VIE"). Entities which the Company does not control and entities which are VIEs in which the Company is not the primary beneficiary are accounted for under appropriate GAAP.
	If an investment is determined to be a VIE, the Company performs an analysis to determine if the Company is the primary beneficiary of the VIE. GAAP requires a VIE to be consolidated by its primary beneficiary. The primary beneficiary is the party that has a controlling financial interest in an entity. In order for a party to have a controlling financial interest in an entity, it must have (1) the power to direct the activities of a VIE that most significantly impact the entity's economic performance and (2) the obligation to absorb losses or the right to receive benefits of an entity that could potentially be significant to the VIE.
	Consolidated Variable Interest Entity. The Company's consolidated VIE was determined to be a VIE primarily because the entity's equity holders' obligation to absorb losses is protected. The Company determined that it was the primary beneficiary of the VIE because it has a controlling financial interest in the entity.
	The Company's wholly-owned entity which owns an office building in Greenville, South Carolina is a VIE and is consolidated by the Company. The tenant has an option to purchase the property on December 31, 2014 at fair market value, but not for less than $10,710 and not for greater than $11,550. If the tenant does not exercise the purchase option, the Company has the right to require the tenant to purchase the property for $10,710.
	Non-Consolidated Variable Interest Entities. At December 31, 2013 and 2012, the Company held variable interests in certain non-consolidated VIEs; however, the Company was not the primary beneficiary of these VIEs as the Company does not have a controlling financial interest in the entities. The Company has certain acquisition commitments and/ or acquisition, development and construction arrangements with VIEs. The Company is obligated to fund certain amounts as discussed in note 4.
Earnings Per Share, Policy [Policy Text Block]	'
	Earnings Per Share. Basic net income (loss) per share is computed by dividing net income (loss) reduced by preferred dividends and amounts allocated to certain non-vested share-based payment awards, if applicable, by the weighted-average number of common shares outstanding during the period. Diluted net income (loss) per share amounts are similarly computed but include the effect, when dilutive, of in-the-money common share options, OP units and put options of certain convertible securities
Use of Estimates, Policy [Policy Text Block]	'
	Use of Estimates. Management has made a number of significant estimates and assumptions relating to the reporting of assets and liabilities, the disclosure of contingent assets and liabilities and the reported amounts of revenues and expenses to prepare these consolidated financial statements in conformity with GAAP. These estimates and assumptions are based on management's best estimates and judgment. Management evaluates its estimates and assumptions on an ongoing basis using historical experience and other factors, including the current economic environment. The current economic environment has increased the degree of uncertainty inherent in these estimates and assumptions. Management adjusts such estimates when facts and circumstances dictate. The most significant estimates made include the recoverability of accounts receivable, allocation of property purchase price to tangible and intangible assets acquired and liabilities assumed, the determination of VIEs and which entities should be consolidated, the determination of impairment of long-lived assets, loans receivable and equity method investments, valuation of derivative financial instruments and the useful lives of long-lived assets. Actual results could differ materially from those estimates.
Fair Value Measurements, Policy [Policy Text Block]	'
	Fair Value Measurements. The Company follows the guidance in the Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") Topic 820, Fair Value Measurements and Disclosures ("Topic 820"), to determine the fair value of financial and non-financial instruments. Topic 820 defines fair value, establishes a framework for measuring fair value in GAAP and expands disclosures about fair value measurements. Topic 820 establishes a fair value hierarchy that prioritizes observable and unobservable inputs used to measure fair value into three levels: Level 1 - quoted prices (unadjusted) in active markets that are accessible at the measurement date for assets or liabilities; Level 2 - observable prices that are based on inputs not quoted in active markets, but corroborated by market data; and Level 3 - unobservable inputs, which are used when little or no market data is available. The fair value hierarchy gives the highest priority to Level 1 inputs and the lowest priority to Level 3 inputs. In determining fair value, the Company utilizes valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs to the extent possible, as well as considering counterparty credit risk. The Company has formally elected to apply the portfolio exception within Topic 820 with respect to measuring counterparty risk for all of its derivative transactions subject to master netting arrangements.
Revenue Recognition, Policy [Policy Text Block]	'
	Revenue Recognition. The Company recognizes lease revenue on a straight-line basis over the term of the lease unless another systematic and rational basis is more representative of the time pattern in which the use benefit is derived from the leased property. Renewal options in leases with rental terms that are lower than those in the primary term are excluded from the calculation of straight-line rent if the renewals are not reasonably assured. If the Company funds tenant improvements and the improvements are deemed to be owned by the Company, revenue recognition will commence when the improvements are substantially completed and possession or control of the space is turned over to the tenant. If the Company determines that the tenant allowances are lease incentives, the Company commences revenue recognition when possession or control of the space is turned over to the tenant for tenant work to begin. The lease incentive is recorded as a deferred expense and amortized as a reduction of revenue on a straight-line basis over the respective lease term. The Company recognizes lease termination fees as rental revenue in the period received and writes off unamortized lease-related intangible and other lease-related account balances, provided there are no further Company obligations under the lease. Otherwise, such fees and balances are recognized on a straight-line basis over the remaining obligation period with the termination payments being recorded as a component of rent receivable-deferred or deferred revenue on the Consolidated Balance Sheets.
	Gains on sales of real estate are recognized based upon the specific timing of the sale as measured against various criteria related to the terms of the transactions and any continuing involvement associated with the properties. If the sales criteria are not met, the gain is deferred and the finance, installment or cost recovery method, as appropriate, is applied until the sales criteria are met. To the extent the Company sells a property and retains a partial ownership interest in the property, the Company recognizes gain to the extent of the third-party ownership interest.
Accounts Receivable, Policy [Policy Text Block]	'
	Accounts Receivable. The Company continuously monitors collections from tenants and makes a provision for estimated losses based upon historical experience and any specific tenant collection issues that the Company has identified. As of December 31, 2013 and 2012, the Company's allowance for doubtful accounts was not significant.
Purchase Accounting and Acquisition of Real Estate, Policy [Policy Text Block]	'
	Purchase Accounting and Acquisition of Real Estate. The fair value of the real estate acquired, which includes the impact of fair value adjustments for assumed mortgage debt related to property acquisitions, is allocated to the acquired tangible assets, consisting of land, building and improvements and identified intangible assets and liabilities, consisting of the value of above-market and below-market leases, other value of in-place leases and value of tenant relationships, based in each case on their fair values. Acquisition costs are expensed as incurred and are included in property operating expense in the accompanying Consolidated Statement of Operations. Also, noncontrolling interests acquired are recorded at estimated fair market value.
	The fair value of the tangible assets of an acquired property (which includes land, building and improvements and fixtures and equipment) is determined by valuing the property as if it were vacant. The “as-if-vacant” value is then allocated to land and building and improvements based on management's determination of relative fair values of these assets. Factors considered by management in performing these analyses include an estimate of carrying costs during the expected lease-up periods considering current market conditions and costs to execute similar leases. In estimating carrying costs, management includes real estate taxes, insurance and other operating expenses and estimates of lost rental revenue during the expected lease-up periods based on current market demand. Management also estimates costs to execute similar leases including leasing commissions.
	In allocating the fair value of the identified intangible assets and liabilities of an acquired property, above-market and below-market lease values are recorded based on the difference between the current in-place lease rent and management's estimate of current market rents. Below-market lease intangibles are recorded as part of deferred revenue and amortized into rental revenue over the non-cancelable periods and bargain renewal periods of the respective leases. Above-market leases are recorded as part of intangible assets and amortized as a direct charge against rental revenue over the non-cancelable portion of the respective leases.
	The aggregate value of other acquired intangible assets, consisting of in-place leases and tenant relationship values, is measured by the excess of (1) the purchase price paid for a property over (2) the estimated fair value of the property as if vacant, determined as set forth above. This aggregate value is allocated between in-place lease values and tenant relationship values based on management's evaluation of the specific characteristics of each tenant's lease. The value of in-place leases is amortized to expense over the remaining non-cancelable periods and any bargain renewal periods of the respective leases. The value of tenant relationships is amortized to expense over the applicable lease term plus expected renewal periods.
	Depreciation is determined by the straight-line method over the remaining estimated economic useful lives of the properties. The Company generally depreciates its real estate assets over periods ranging up to 40 years.
Impairment of Real Estate, Policy [Policy Text Block]	'
	Impairment of Real Estate. The Company evaluates the carrying value of all tangible and intangible real estate assets held for investment for possible impairment when an event or change in circumstance has occurred that indicates its carrying value may not be recoverable. The evaluation includes estimating and reviewing anticipated future undiscounted cash flows to be derived from the asset. If such cash flows are less than the asset's carrying value, an impairment charge is recognized to the extent by which the asset's carrying value exceeds its estimated fair value, which may be below the balance of any non-recourse financing. Estimating future cash flows and fair values is highly subjective and such estimates could differ materially from actual results.
Investment in Non-Consolidated Entities, Policy [Policy Text Block]	'
	Investments in Non-Consolidated Entities. The Company accounts for its investments in 50% or less owned entities under the equity method, unless consolidation is required. If the Company's investment in the entity is insignificant and the Company has no influence over the control of the entity then the entity is accounted for under the cost method.
Impairment of Equity Method Investments, Policy [Policy Text Block]	'
	Impairment of Equity Method Investments. The Company assesses whether there are indicators that the value of its equity method investments may be impaired. An impairment charge is recognized only if the Company determines that a decline in the value of the investment below its carrying value is other-than-temporary. The assessment of impairment is highly subjective and involves the application of significant assumptions and judgments about the Company's intent and ability to recover its investment given the nature and operations of the underlying investment, including the level of the Company's involvement therein, among other factors. To the extent an impairment is deemed to be other-than-temporary, the loss is measured as the excess of the carrying amount of the investment over the estimated fair value of the investment.
Loans Receivable, Policy [Policy Text Block]	'
	Loans Receivable. Loans held for investment are intended to be held to maturity and, accordingly, are carried at cost, net of unamortized loan origination costs and fees, loan purchase discounts, and net of an allowance for loan losses when such loan is deemed to be impaired. Loan origination costs and fees and loan purchase discounts are amortized over the term of the loan. The Company considers a loan impaired when, based upon current information and events, it is probable that it will be unable to collect all amounts due for both principal and interest according to the contractual terms of the loan agreement. Significant judgments are required in determining whether impairment has occurred. The Company performs an impairment analysis by comparing either the present value of expected future cash flows discounted at the loan's effective interest rate, the loan's observable current market price or the fair value of the underlying collateral to the net carrying value of the loan, which may result in an allowance and corresponding loan loss charge. Interest income is recorded on a cash basis for impaired loans.
Acquisition, Development and Construction Arrangements, Policy [Policy Text Block]	'
	Acquisition, Development and Construction Arrangements. The Company evaluates loans receivable where the Company participates in residual profits through loan provisions or other contracts to ascertain whether the Company has the same risks and rewards as an owner or a joint venture partner. Where the Company concludes that such arrangements are more appropriately treated as an investment in real estate, the Company reflects such loan receivable as an equity investment in real estate under construction in the Consolidated Balance Sheets. In these cases, no interest income is recorded on the loan receivable and the Company records capitalized interest during the construction period. In arrangements where the Company engages a developer to construct a property or provide funds to a tenant to develop a property, the Company will capitalize the funds provided to the developer/tenant and internal costs of interest and real estate taxes, if applicable, during the construction period.
Properties Held For Sale, Policy [Policy Text Block]	'
	Properties Held For Sale. Assets and liabilities of properties that meet various held for sale criteria, including whether it is probable that a sale will occur within 12 months, are presented separately in the Consolidated Balance Sheets, with assets and liabilities being separately stated. The operating results of these properties are reflected as discontinued operations in the Consolidated Statements of Operations. Properties classified as held for sale are carried at the lower of net carrying value or estimated fair value less costs to sell and depreciation and amortization are no longer recognized. Properties that do not meet the held for sale criteria are accounted for as operating properties.
Deferred Expenses, Policy [Policy Text Block]	'
	Deferred Expenses. Deferred expenses consist primarily of debt and leasing costs. Debt costs are amortized using the straight-line method, which approximates the interest method, over the terms of the debt instruments and leasing costs are amortized over the term of the related lease.
Derivative Financial Instruments, Policy [Policy Text Block]	'
	Derivative Financial Instruments. The Company accounts for its interest rate swap agreements in accordance with FASB ASC Topic 815, Derivatives and Hedging ("Topic 815"). In accordance with Topic 815, these agreements are carried on the balance sheet at their respective fair values, as an asset if fair value is positive, or as a liability if fair value is negative. If the interest rate swap is designated as a cash flow hedge, the effective portion of the interest rate swap's change in fair value is reported as a component of other comprehensive income (loss); the ineffective portion, if any, is recognized in earnings as an increase or decrease to interest expense.
	Upon entering into hedging transactions, the Company documents the relationship between the interest rate swap agreement and the hedged item. The Company also documents its risk-management policies, including objectives and strategies, as they relate to its hedging activities. The Company assesses, both at inception of a hedge and on an on-going basis, whether or not the hedge is highly effective. The Company will discontinue hedge accounting on a prospective basis with changes in the estimated fair value reflected in earnings when (1) it is determined that the derivative is no longer effective in offsetting cash flows of a hedged item (including forecasted transactions), (2) it is no longer probable that the forecasted transaction will occur or (3) it is determined that designating the derivative as an interest rate swap is no longer appropriate. The Company does and may continue to utilize interest rate swap and cap agreements to manage interest rate risk, but does not anticipate entering into derivative transactions for speculative trading purposes.
Stock Compensation, Policy [Policy Text Block]	'
	Stock Compensation. The Company maintains an equity participation plan. Non-vested share grants generally vest either based upon (1) time, (2) performance and/or (3) market conditions. Options granted under the plan in 2010 vest over a five-year period and expire ten years from the date of grant. Options granted under the plan in 2008 vest upon attainment of certain market performance measures and expire ten years from the date of grant. All share-based payments to employees, including grants of employee stock options, are recognized in the Consolidated Statements of Operations based on their fair values.
Tax Status, Policy [Policy Text Block]	'
	Tax Status. The Company has made an election to qualify, and believes it is operating so as to qualify, as a REIT for federal income tax purposes. Accordingly, the Company generally will not be subject to federal income tax, provided that distributions to its shareholders equal at least the amount of its REIT taxable income as defined under Sections 856 through 860 of the Code.
	The Company is permitted to participate in certain activities from which it was previously precluded in order to maintain its qualification as a REIT, so long as these activities are conducted in entities which elect to be treated as taxable REIT subsidiaries under the Code. As such, the Company is subject to federal and state income taxes on the income from these activities.
	Income taxes, primarily related to the Company's taxable REIT subsidiaries, are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax basis and operating loss and tax credit carry-forwards. Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which those temporary differences are expected to be recovered or settled.
Cash and Cash Equivalents, Policy [Policy Text Block]	'
	Cash and Cash Equivalents. The Company considers all highly liquid instruments with original maturities of three months or less from the date of purchase to be cash equivalents.
Restricted Cash, Policy [Policy Text Block]	'
	Restricted Cash. Restricted cash is comprised primarily of cash balances held in escrow with lenders.
Environmental Matters, Policy [Policy Text Block]	'
	Environmental Matters. Under various federal, state and local environmental laws, statutes, ordinances, rules and regulations, an owner of real property may be liable for the costs of removal or remediation of certain hazardous or toxic substances at, on, in or under such property as well as certain other potential costs relating to hazardous or toxic substances. These liabilities may include government fines, penalties and damages for injuries to persons and adjacent property. Such laws often impose liability without regard to whether the owner knew of, or was responsible for, the presence or disposal of such substances. Although most of the tenants of properties in which the Company has an interest are primarily responsible for any environmental damage and claims related to the leased premises, in the event of the bankruptcy or inability of the tenant of such premises to satisfy any obligations with respect to such environmental liability, or if the tenant is not responsible, the Company's property owner subsidiary may be required to satisfy any such obligations, should they exist. In addition, the property owner subsidiary, as the owner of such a property, may be held directly liable for any such damages or claims irrespective of the provisions of any lease. As of December 31, 2013, the Company was not aware of any environmental matter relating to any of its investments that would have a material impact on the consolidated financial statements.
Segment Reporting, Policy [Policy Text Block]	'
	Segment Reporting. The Company operates generally in one industry segment, single-tenant real estate assets.
Reclassifications, Policy [Policy Text Block]	'
	Reclassifications. Certain amounts included in prior years' financial statements have been reclassified to conform to the current year presentation, including certain statement of operations captions including activities for properties sold during 2013, which are presented as discontinued operations.
New Accounting Pronouncements, Policy [Policy Text Block]	'
	Recently Issued Accounting Guidance. In February 2013, the Financial Accounting Standards Board issued Accounting Standards Update No. 2013-02: Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income, to improve the transparency of reporting the reclassifications of significant amounts out of accumulated other comprehensive income. This guidance requires entities to present the effects on the line items of net income of significant reclasses from accumulated other comprehensive income, either where net income is presented or in the notes, as well as cross-reference to other disclosures currently required under GAAP for other reclassification items (that are not required under GAAP) to be reclassified directly to net income in their entirety in the same reporting period. The new disclosure requirements are effective for annual reporting periods beginning after December 15, 2012. The new disclosures are required for both interim and annual reporting. The implementation of this guidance did not have an impact on the Company's financial position, results of operations or cash flows.

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Schedule of Earnings Per Share Reconciliation	'
	The following is a reconciliation of the numerators and denominators of the basic and diluted earnings per share computations for each of the years in the three-year period ended December 31, 2013:
		2013			2012			2011
	BASIC
	Income (loss) from continuing operations attributable to common shareholders	$	(31,777	)	$	156,709		$	(30,194	)
	Income (loss) from discontinued operations attributable to common shareholders	17,688			112			(73,527		)
	Net income (loss) attributable to common shareholders	$	(14,089	)	$	156,821		$	(103,721	)
	Weighted-average number of common shares outstanding	209,797,238			159,109,424			152,473,336
	Income (loss) per common share:
	Income (loss) from continuing operations	$	(0.15	)	$	0.99		$	(0.20	)
	Income (loss) from discontinued operations	0.08			—			(0.48		)
	Net income (loss) attributable to common shareholders	$	(0.07	)	$	0.99		$	(0.68	)
		2013			2012			2011
	DILUTED:
	Income (loss) from continuing operations attributable to common shareholders	$	(31,777	)	$	156,709		$	(30,194	)
	Impact of assumed conversions:
	Share Options	—			—			—
	Operating Partnership Units	—			1,585			—
	6.00% Convertible Guaranteed Notes	—			8,953			—
	Income (loss) from continuing operations attributable to common shareholders	(31,777		)	167,247			(30,194		)
	Income (loss) from discontinued operations attributable to common shareholders	17,688			112			(73,527		)
	Impact of assumed conversions:
	Operating Partnership Units	—			(392		)	—
	Income (loss) from discontinued operations attributable to common shareholders	17,688			(280		)	(73,527		)
	Net income (loss) attributable to common shareholders	$	(14,089	)	$	166,967		$	(103,721	)
	Weighted-average common shares outstanding - basic	209,797,238			159,109,424			152,473,336
	Effect of dilutive securities:
	Share Options	—			306,449			—
	Operating Partnership Units	—			4,438,708			—
	6.00% Convertible Guaranteed Notes	—			15,805,245			—
	Weighted-average common shares outstanding	209,797,238			179,659,826			152,473,336
	Income (loss) per common share:
	Income (loss) from continuing operations	$	(0.15	)	$	0.93		$	(0.20	)
	Income (loss) from discontinued operations	0.08			—			(0.48		)
	Net income (loss) attributable to common shareholders	$	(0.07	)	$	0.93		$	(0.68	)

Investments_in_Real_Estate_and1

Investments in Real Estate and Real Estate Under Construction (Tables)	12 Months Ended
	Dec. 31, 2013
Real Estate Investments, Net [Abstract]	'
Schedule of Net Real Estate	'
	The Company's real estate, net, consists of the following at December 31, 2013 and 2012:
			2013				2012
	Real estate, at cost:
	Buildings and building improvements		$	3,008,709			$	2,969,050
	Land, land estates and land improvements		793,418				581,199
	Fixtures and equipment		5,861				7,705
	Construction in progress		4,306				6,512
	Real estate intangibles:
	In-place lease values		486,743				401,503
	Tenant relationships		172,640				179,655
	Above-market leases		102,774				104,756
	Investments in real estate under construction		74,350				65,122
			4,648,801				4,315,502
	Accumulated depreciation and amortization(1)		(1,223,381		)		(1,150,417		)
	Real estate, net		$	3,425,420			$	3,165,085
	-1	Includes accumulated amortization of real estate intangible assets of $447,764 and $412,349 in 2013 and 2012, respectively. The estimated amortization of the above real estate intangible assets for the next five years is $44,003 in 2014, $34,932 in 2015, $28,640 in 2016, $25,239 in 2017 and $21,498 in 2018.
Schedule of Acquired Properties	'
	The Company, through property owner subsidiaries, completed the following acquisitions and build-to-suit transactions during 2013 and 2012:
	2013:00:00
													Real Estate Intangibles
	Property Type	Location	Acquisition/Completion Date	Initial Cost Basis			Lease Expiration	Land and Land Estate			Building and Improvements		Above Market Lease Value		Lease in-place Value
	Industrial	Long Island City, NY	Feb-13	$	42,124		Mar-28	$	—		$	42,124	$	—	$	—
	Industrial	Houston, TX	Mar-13	$	81,400		Mar-38	$	15,055		$	57,949	$	—	$	8,396
	Office (1)	Denver, CO	Apr-13	$	34,547		Apr-28	$	2,207		$	26,724	$	—	$	5,616
	Retail(2)	Tuscaloosa, AL	May-13	$	8,397		May-28	$	2,793		$	5,604	$	—	$	—
	Land(3)	New York, NY	Oct-13	$	302,000		Oct-12	$	224,935		$	—	$	—	$	77,065
	Land	Danville, VA	Oct-13	$	4,727		Jan-29	$	3,454		$	—	$	673	$	600
	Retail(4)	Albany, GA	Nov-13	$	7,074		Nov-28	$	1,468		$	5,606	$	—	$	—
	Office(5)	Various	Dec-13	$	13,144		Dec-33	$	1,522		$	10,374	$	—	$	1,248
	Office	Omaha, NE	Dec-13	$	39,125		Nov-33	$	2,058		$	32,343	$	—	$	4,724
				$	532,538			$	253,492		$	180,724	$	673	$	97,649
	Weighted-average life of intangible assets (years)												15.3		82.5
	-1	The Company incurred additional tenant related costs of $3,825.
	-2	The Company incurred leasing costs of $323. The property was sold in September 2013.
	-3	Includes three properties.
	-4	The Company incurred leasing costs of $338.
	-5	Includes four properties. One property was under construction at December 31, 2013, $1,969 of construction in progress costs are included in building and improvements above.
	In addition, during 2013, the Company deposited $638 toward the purchase of a to-be-built industrial property in Lewisburg, Tennessee for an estimated cost of $12,767. Substantial completion of the property is expected to occur in the second quarter of 2014 although there can be no assurance that the acquisition will be consummated.
	2012:00:00
													Real Estate Intangibles
	Property Type	Location	Acquisition/Completion Date	Initial Cost Basis			Lease Expiration	Land and Land Estate			Building and Improvements		Lease in-place Value		Tenant Relationships Value
	Office	Huntington, WV	Jan-12	$	12,558		Nov-26	$	1,368		$	9,527	$	1,405	$	258
	Office	Florence, SC	Feb-12	$	5,094		Feb-24	$	774		$	3,629	$	505	$	186
	Land/ Infrastructure	Missouri City, TX	Apr-12	$	23,000		Apr-32	$	14,555		$	5,895	$	2,135	$	415
	Industrial	Shreveport, LA	Jun-12	$	12,941		Mar-22	$	1,078		$	10,134	$	1,590	$	139
	Retail	Valdosta, GA(1)	Aug-12	$	7,791		Aug-27	$	2,128		$	5,663	$	—	$	—
	Office	Jessup, PA	Aug-12	$	24,917		Aug-27	$	2,520		$	17,656	$	3,336	$	1,405
	Office	Saint Joseph, MO	Sep-12	$	17,571		Jun-27	$	607		$	14,004	$	2,528	$	432
	Retail	Opelika, AL(1)	Nov-12	$	7,978		Nov-27	$	1,446		$	6,532	$	—	$	—
	Office	Phoenix, AZ	Dec-12	$	53,200		Dec-29	$	5,585		$	36,099	$	8,956	$	2,560
	Office	Eugene, OR	Dec-12	$	17,558		Nov-27	$	1,541		$	13,099	$	2,414	$	504
				$	182,608			$	31,602		$	122,238	$	22,869	$	5,899
	Weighted-average life of intangible assets (years)												15.7		16
	(1) Incurred leasing costs of $488 for Valdosta and $355 for Opelika. Properties were sold in 2013.
Schedule of Development Arrangements Outstanding	'
	As of December 31, 2013, the Company had the following development arrangements outstanding:
	Location	Property Type	Square Feet			Expected Maximum Commitment/Contribution ($ millions)				Lease Term (Years)	Estimated Completion Date
	Rantoul, IL	Industrial	813,000			$	42.6			20	1Q 14
	Bingen, WA	Industrial	124,000			$	18.9			12	2Q 14
	Las Vegas, NV	Industrial	180,000			$	29.6			20	3Q 14
	Richmond, VA	Office	279,000			$	98.6			15	3Q 15
			1,396,000			$	189.7
Schedule of Purchase Price Allocation	'
	The following table summarizes the allocation of the fair value of amounts recognized for each major class of assets and liabilities:
	Real estate assets		$	325,310
	Lease related intangible assets		124,330
	Cash		8,107
	Other assets		36,179
	Total acquired assets		493,926
	Secured debt		252,517
	Other liabilities, including below-market leases		23,686
	Total assumed liabilities		276,203
	Fair value of acquired net assets (represents 100% interest)		$	217,723
Schedule of Finite-Lived Intangible Assets by Major Class	'
	Intangible assets and liabilities recorded in connection with the above acquisition are set forth as follows:
						Weighted Average Amortization Period (in Years)
	In-place leases		$	59,819		6.2
	Tenant relations		24,828			4.6
	Above-market leases		39,683			8.4
	Total intangible assets acquired		$	124,330
	Below-market leases		$	1,529		2.7
Business Acquisition, Pro Forma Information	'
	The information presented below is not necessarily indicative of what the actual results of operations would have been had the transaction been completed on January 1, 2011, nor does it purport to represent the Company's future operations:
			2012				2011
	Gross revenues		$	372,603			$	356,918
	Net income (loss) attributable to Lexington Realty Trust shareholders		$	8			$	(111,787	)
	Net loss attributable to common shareholders		$	(22,985	)		$	(135,924	)
	Net loss per common share - basic and diluted		$	(0.14	)		$	(0.89	)

Sales_of_Real_Estate_and_Disco1

Sales of Real Estate and Discontinued Operations (Tables)	12 Months Ended
	Dec. 31, 2013
Discontinued Operations and Disposal Groups [Abstract]	'
Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures	'
	The following presents the operating results for the properties sold and held for sale during the years ended December 31, 2013, 2012 and 2011:
		Year Ending December 31,
		2013		2012		2011
	Total gross revenues	$	7,577	$	22,591	$	44,247
	Pre-tax net income (loss), including gains on sales	$	19,746	$	1,807	$	(87,533	)

Loans_Receivable_Tables

Loans Receivable (Tables)	12 Months Ended
	Dec. 31, 2013
Loans Receivable, Net [Abstract]	'
Schedule of Accounts, Notes, Loans and Financing Receivable	'
	The following is a summary of our loans receivable as of December 31, 2013 and 2012:
			Loan carrying-value(1)
	Loan		12/31/13		12/31/12		Interest Rate		Maturity Date
	Norwalk, CT(2)		$	28,186	$	3,479	7.5	%	Nov-14
	Homestead, FL(3)		10,239		8,036		7.5	%	Aug-14
	Schaumburg, IL(4)		—		21,885		20	%	Jan-12
	Westmont, IL(5)		12,610		26,902		6.45	%	Oct-15
	Southfield, MI		6,610		7,364		4.55	%	Feb-15
	Austin, TX		2,389		2,038		16	%	Oct-18
	Kennewick, WA(6)		37,030		—		9	%	May-22
	Other		2,379		2,836		8	%	2021-2022
			$	99,443	$	72,540
	-1	Loan carrying value includes accrued interest and is net of origination costs, loan losses and fee eliminations, if any.
	-2	The Company is committed to lend up to $32,600.
	-3	The Company is committed to lend up to $10,660.
	-4	Borrower defaulted on the loan. The Company did not record interest of $2,939 and $2,647 in 2013 and 2012, respectively, representing the interest earned since default. In 2013, the Company foreclosed on the borrower and acquired the office property collateral which is net leased through December 2022.
	-5	Borrower is delinquent on debt service payments. Tenant at office property collateral terminated its lease. The Company recognized an impairment of $13,939 during 2013. During 2013, the Company recognized $1,737 of interest income relating to the impaired loan and the loan had an average recorded investment value of $25,562. At December 31, 2013, the impaired loan receivable had a net carrying value of $12,610 and a contractual unpaid balance of $26,549.
	-6	The Company is committed to lend up to $85,000. During construction advances accrue interest at 6.5% per annum. Estimated construction completion is March 2014.

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
Schedule of Fair Value Measurement Inputs	'
	The following tables present the Company's assets and liabilities from continuing operations measured at fair value on a recurring basis as of December 31, 2013 and 2012 and non-recurring basis during the year ended December 31, 2013 and 2012, aggregated by the level in the fair value hierarchy within which those measurements fall:
					Fair Value Measurements Using
	Description	2013			(Level 1)		(Level 2)			(Level 3)
	Interest rate swap assets	$	4,439		$	—	$	4,439		$	—
	Impaired real estate assets*	$	12,549		$	—	$	—		$	12,549
	Impaired loan receivable*	$	12,610		$	—	$	—		$	12,610
	Impaired investments in and advances to non-consolidated entities*	$	683		$	—	$	—		$	683
	*Represents a non-recurring fair value measurement.
					Fair Value Measurements Using
	Description	2012			(Level 1)		(Level 2)			(Level 3)
	Interest rate swap liability	$	(6,556	)	$	—	$	(6,556	)	$	—
	Impaired real estate assets*	$	3,327		$	—	$	—		$	3,327
	*Represents a non-recurring fair value measurement.
Fair Value, by Balance Sheet Grouping	'
	The table below sets forth the carrying amounts and estimated fair values of the Company's financial instruments as of December 31, 2013 and 2012:
		As of December 31, 2013					As of December 31, 2012
		Carrying			Fair Value		Carrying			Fair Value
		Amount					Amount
	Assets
	Loans Receivable (Level 3)	$	99,443		$	95,734	$	72,540		$	61,734
	Liabilities
	Debt (Level 3)	$	2,055,807		$	2,028,558	$	1,878,208		$	1,835,157

Mortgages_and_Notes_Payable_Ta

Mortgages and Notes Payable (Tables) (Mortgages and Notes Payable [Member])	12 Months Ended
	Dec. 31, 2013
Mortgages and Notes Payable [Member]	'
Debt Instrument [Line Items]	'
Schedule of Maturities of Long-term Debt	'
	Scheduled principal and balloon payments for mortgages, notes payable, credit facility borrowings and term loans for the next five years and thereafter are as follows:
	Year ending December 31,	Total
	2014	$	123,212
	2015	301,591
	2016	168,899
	2017	137,035
	2018	188,764
	Thereafter	731,988
		$	1,651,489

Senior_Notes_Convertible_Notes1

Senior Notes, Convertible Notes, Exchangeable Notes and Trust Preferred Securities (Tables)	12 Months Ended
	Dec. 31, 2013
Debt Instrument [Line Items]	'
Schedule of Long-term Debt Instruments	'
	Below is a summary of additional disclosures related to the 6.00% Convertible Guaranteed Notes and the 5.45% Exchangeable Guaranteed Notes.
		6.00% Convertible Guaranteed Notes
	Balance Sheets:	December 31, 2013				December 31, 2012
	Principal amount of debt component	$	28,991			$	83,896
	Unamortized discount	(1,500		)		(5,769		)
	Carrying amount of debt component	$	27,491			$	78,127
	Carrying amount of equity component	$	(26,032	)		$	3,654
	Effective interest rate	8.1		%		8.1		%
	Period through which discount is being amortized, put date	Jan-17				Jan-17
	Aggregate if-converted value in excess of aggregate principal amount	$	14,296			$	42,579
	Statements of Operations:		2013				2012		2011
	6.00% Convertible Guaranteed Notes
	Coupon interest		$	2,296			$	6,634	$	6,900
	Discount amortization		658				1,868		1,938
			$	2,954			$	8,502	$	8,838
	5.45% Exchangeable Guaranteed Notes
	Coupon interest		$	—			$	188	$	3,387
	Discount amortization		—				34		664
			$	—			$	222	$	4,051
Senior Notes, Convertible Notes, Exchangeable Notes, and Trust Preferred Securities [Member]	'
Debt Instrument [Line Items]	'
Schedule of Maturities of Long-term Debt	'
	Scheduled principal payments for these debt instruments for the next five years and thereafter are as follows:
	Year ending December 31,		Total
	2014		$	—
	2015		—
	2016		—
	2017(1)		28,991
	2018		—
	Thereafter		379,120
			408,111
	Debt discounts		(3,793		)
			$	404,318
	-1	Although the 6.00% Convertible Guaranteed Notes mature in 2030, the notes can be put to the Company in 2017.

Derivatives_and_Hedging_Activi1

Derivatives and Hedging Activities (Tables)

12 Months Ended

Dec. 31, 2013

Derivative Instruments and Hedging Activities Disclosure [Abstract]

'

Schedule of Derivative Instruments

'

As of December 31, 2013, the Company had the following outstanding interest rate derivatives that were designated as cash flow hedges of interest rate risk:

Interest Rate Derivative

Number of Instruments

Notional

Interest Rate Swaps

8

$406,000

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value

'

The table below presents the fair value of the Company's derivative financial instruments as well as their classification on the Consolidated Balance Sheets as of December 31, 2013 and 2012.

As of December 31, 2013

As of December 31, 2012

Balance Sheet Location

Fair Value

Balance Sheet Location

Fair Value

Derivatives designated as hedging instruments:

Interest Rate Swap Asset (Liability)

Other Assets

$

4,439

Accounts Payable and Other Liabilities

$

(6,556

)

Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance

'

The tables below present the effect of the Company's derivative financial instruments on the Consolidated Statements of Operations for 2013 and 2012:

Derivatives in Cash Flow

Amount of Gain (Loss) Recognized

Location of Loss

Amount of Loss Reclassified

in OCI on Derivative

Reclassified from

from Accumulated OCI into

(Effective Portion)

Accumulated OCI into Income (Effective Portion)

Income (Effective Portion)

December 31,

December 31,

Hedging Relationships

2013

2012

2013

2012

Interest Rate Swap

$

7,559

$

(8,886

)

Interest expense

$

3,104

$

724

Leases_Tables

Leases (Tables)	12 Months Ended
	Dec. 31, 2013
Leases [Abstract]	'
Schedule of Future Minimum Rental Payments Receivable for Operating Leases	'
	Minimum future rental receipts under the non-cancelable portion of tenant leases, assuming no new or re-negotiated leases, for the next five years and thereafter are as follows:
	Year ending	Total
	December 31,
	2014	$	362,743
	2015	334,370
	2016	303,455
	2017	272,390
	2018	249,645
	Thereafter	5,767,751
		$	7,290,354
Schedule of Future Minimum Rental Payments for Operating Leases	'
	Minimum future rental payments under non-cancelable leasehold interests, excluding leases held through industrial revenue bonds and lease payments in the future that are based upon fair market value, for the next five years and thereafter are as follows:
	Year ending	Total
	December 31,
	2014	$	5,229
	2015	5,203
	2016	4,907
	2017	4,861
	2018	4,645
	Thereafter	39,484
		$	64,329

Equity_Tables

Equity (Tables)	12 Months Ended
	Dec. 31, 2013
Equity [Abstract]	'
Stock Redemptions and Retirements	'
	During 2013, 2012 and 2011, the Company repurchased/redeemed and retired the following shares of its preferred stock:
			2013				2012				2011
	8.05% Series B Cumulative Redeemable Preferred Stock:
	Shares redeemed and retired		—				2,740,874				419,126
	Redemption cost (2012)(1)/repurchase cost (2011)		$	—			$	69,459			$	10,217
	Deemed dividend(2)		$	—			$	2,346			$	95
	6.50% Series C Cumulative Convertible Preferred Stock:
	Shares repurchased and retired		—				34,800				125,000
	Repurchase cost		$	—			$	1,462			$	5,239
	Discount (Deemed negative dividend)(2)		$	—			$	(229	)		$	(833	)
	7.55% Series D Cumulative Redeemable Preferred Stock:
	Shares redeemed and retired		6,200,000				—				—
	Redemption cost(1)		$	155,621			$	—			$	—
	Deemed dividend(2)		$	5,230			$	—			$	—
	-1	Includes accrued and unpaid dividends.
	-2	Represents the difference between the redemption/repurchase cost and historical GAAP cost. Accordingly, net income (loss) was adjusted for the deemed dividends/deemed negative dividends to arrive at net income (loss) attributable to common shareholders.
Accumulated Other Comprehensive Income Loss	'
	Changes in Accumulated Other Comprehensive Income (Loss)
			Gains and Losses
			on Cash Flow Hedges
	Balance December 31, 2012		$	(6,224	)
	Other comprehensive income before reclassifications		7,559
	Amounts of loss reclassified from accumulated other comprehensive loss to interest expense		3,104
	Balance December 31, 2013		$	4,439
Effects of Changes in the Company's Ownership Interests in Noncontrolling Interests	'
	The following discloses the effects of changes in the Company's ownership interests in its noncontrolling interests:
		Net Income (Loss) Attributable to Shareholders and Transfers from Noncontrolling Interests
		2013				2012				2011
	Net income (loss) attributable to Lexington Realty Trust shareholders	$	1,630			$	180,316			$	(79,584	)
	Transfers from noncontrolling interests:
	Increase in additional paid-in-capital for redemption of noncontrolling OP units	1,053				1,343				2,187
	Change from net income (loss) attributable to shareholders and transfers from noncontrolling interests	$	2,683			$	181,659			$	(77,397	)

Benefit_Plans_Benefit_Plans_Ta

Benefit Plans Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2013
Employee Benefits and Share-based Compensation [Abstract]	'
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions	'
	The more significant assumptions underlying the determination of fair value for options granted were as follows:
			2010 Options				2009 Options			2008 Options
	Weighted-average fair value of options granted		$	1.94			$	2.19		$	1.24
	Weighted-average risk-free interest rate		2.54		%		3.29		%	1.33		%
	Weighted-average expected option lives (in years)		6.5				6.7			3.6
	Weighted-average expected volatility		49		%		59.08		%	59.94		%
	Weighted-average expected dividend yield		7.4		%		6.26		%	14.4		%
Schedule of Share-based Compensation, Stock Options, Activity	'
	Share option activity during the years indicated is as follows:
		Number of			Weighted-Average
		Shares			Exercise Price
					Per Share
	Balance at December 31, 2010	4,389,605			$	6.23
	Exercised	(501,324	)		5.16
	Balance at December 31, 2011	3,888,281			6.36
	Exercised	(408,201	)		5.73
	Balance at December 31, 2012	3,480,080			6.44
	Exercised	(1,519,179	)		5.77
	Forfeited	(5,200	)		7.47
	Balance at December 31, 2013	1,955,701			$	6.95
Schedule of Nonvested Share Activity	'
	Non-vested share activity for the years ended December 31, 2013 and 2012, is as follows:
		Number of			Weighted-Average
		Shares			Value Per Share
	Balance at December 31, 2011	1,179,585			$	8.13
	Granted	606,500			9.75
	Vested	(320,639	)		8.86
	Balance at December 31, 2012	1,465,446			8.64
	Granted	1,829,400			10.52
	Vested	(770,229	)		7.14
	Forfeited	(3,571	)		9.21
	Balance at December 31, 2013	2,521,046			$	10.46

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Schedule of Components of Income Tax Expense (Benefit)	'
	The Company's benefit (provision) for income taxes for the years ended December 31, 2013, 2012 and 2011 is summarized as follows:
		2013			2012			2011
	Current:
	Federal	$	(1,445	)	$	(371	)	$	(440	)
	State and local	(1,675		)	(1,156		)	(1,043		)
	NOL utilized	586			401			566
	Deferred:
	Federal	(595		)	141			1,399
	State and local	(130		)	45			400
		$	(3,259	)	$	(940	)	$	882
Statutory Accounting Practices Disclosure	'
	The income tax benefit (provision) differs from the amount computed by applying the statutory federal income tax rate to pre-tax operating income as follows:
		2013			2012			2011
	Federal provision at statutory tax rate (34%)	$	164		$	(573	)	$	(580	)
	State and local taxes, net of federal benefit	22			(110		)	(100		)
	Other	(3,445		)	(257		)	1,562
		$	(3,259	)	$	(940	)	$	882
Summary of Average Taxable Nature of Dividends	'
	A summary of the average taxable nature of the Company's common dividends for each of the years in the three-year period ended December 31, 2013, is as follows:
		2013			2012			2011
	Total dividends per share	$	0.6		$	0.525		$	0.46
	Ordinary income	35.53		%	95.68		%	47.33		%
	Qualifying dividend	4.11		%	0.99		%	1.11		%
	Capital gain	2.09		%	—			—
	25% rate gain	—			—			—
	Return of capital	58.27		%	3.33		%	51.56		%
		100		%	100		%	100		%
	A summary of the average taxable nature of the Company's dividend on shares of its Series B Cumulative Redeemable Preferred Stock for each of the years in the three-year period ended December 31, 2013, is as follows:
		2013			2012			2011
	Total dividends per share	$	—		$	1.341667		$	2.0125
	Ordinary income	—			98.98		%	97.7		%
	15% rate - qualifying dividend	—			1.02		%	2.3		%
	15% rate gain	—			—			—
	25% rate gain	—			—			—
		—			100		%	100		%
	A summary of the average taxable nature of the Company's dividend on shares of its Series C Preferred for each of the years in the three-year period ended December 31, 2013, is as follows:
		2013			2012			2011
	Total dividends per share	$	3.25		$	3.25		$	3.25
	Ordinary income	85.14		%	98.98		%	97.7		%
	Qualifying dividend	9.85		%	1.02		%	2.3		%
	Capital gain	5.01		%	—			—
	25% rate gain	—			—			—
	Return of capital	—			—			—
		100		%	100		%	100		%
	A summary of the average taxable nature of the Company's dividend on shares of its Series D Cumulative Redeemable Preferred Stock for the years in the three-year period ended December 31, 2013, is as follows:
		2013			2012			2011
	Total dividends per share	$	1.043368		$	1.8875		$	1.76498	-1
	Ordinary income	85.14		%	98.98		%	97.7		%
	Qualifying dividend	9.85		%	1.02		%	2.3		%
	Capital gain	5.01		%	—			—
	25% rate gain	—			—			—
		100		%	100		%	100		%
	_________
	(1)Of the total dividend paid in January 2011, $0.12252 was allocated to 2010 and $0.349355 was allocated to 2011.

Unaudited_Quarterly_Financial_1

Unaudited Quarterly Financial Data (Tables)	12 Months Ended
	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]	'
Schedule of Quarterly Financial Information	'
		2013
		3/31/13			6/30/13			9/30/13		12/31/13
	Total gross revenues(1)	$	94,121		$	97,763		$	96,950	$	109,606
	Net income (loss)	$	(2,123	)	$	7,832		$	5,155	$	(7,001	)
	Net income (loss) attributable to common shareholders	$	(7,295	)	$	(849	)	$	2,978	$	(8,923	)
	Net income (loss) attributable to common shareholders - basic per share	$	(0.04	)	$	—		$	0.01	$	(0.04	)
	Net income (loss) attributable to common shareholders - diluted per share	$	(0.04	)	$	—		$	0.01	$	(0.04	)
		2012
		3/31/12			6/30/12			9/30/12		12/31/12
	Total gross revenues(1)	$	75,360		$	78,961		$	83,800	$	92,059
	Net income (loss)	$	5,478		$	5,626		$	175,289	$	(1,755	)
	Net income (loss) attributable to common shareholders	$	(2,187	)	$	(3,392	)	$	168,943	$	(7,039	)
	Net income (loss) attributable to common shareholders - basic per share	$	(0.01	)	$	(0.02	)	$	1.09	$	(0.04	)
	Net income (loss) attributable to common shareholders - diluted per share	$	(0.01	)	$	(0.02	)	$	0.96	$	(0.04	)
	_____________
	(1) All periods have been adjusted to reflect the impact of properties sold during the years ended December 31, 2013 and 2012, and properties classified as held for sale, which are reflected in discontinued operations in the Consolidated Statements of Operations.

The_Company_Details

The Company (Details)	Dec. 31, 2013	Dec. 31, 2012
	states	properties
	properties	states
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'	'
Number of Consolidated Properties	220	220
Number of States in which Entity has Interests	41	41

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013
Summary of Significant Accounting Policies [Line Items]	'
Tenant Purchase Requirement, Minimum	$10,710
Tenant Purchase Requirement Maximum	11,550
Required Tenant Purchase Price	$10,710
Vesting Period	'5 years
Expiration Period of Options	'10 years
Building and Building Improvements [Member]	'
Summary of Significant Accounting Policies [Line Items]	'
Property, Land and Equipment, Useful Life, Maximum (in years)	'40 years

Earnings_Per_Share_Details

Earnings Per Share (Details) (USD $)

3 Months Ended

12 Months Ended

In Thousands, except Share data, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2010

Six Percent Convertible Guaranteed Note [Member]

Six Percent Convertible Guaranteed Note [Member]

Six Percent Convertible Guaranteed Note [Member]

Six Percent Convertible Guaranteed Note [Member]

BASIC

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Income (loss) from continuing operations attributable to common shareholders

'

'

'

'

'

'

'

'

($31,777)

$156,709

($30,194)

'

'

'

'

Income (loss) from discontinued operations attributable to common shareholders

'

'

'

'

'

'

'

'

17,688

112

-73,527

'

'

'

'

Net income (loss) attributable to common shareholders

'

'

'

'

'

'

'

'

-14,089

156,821

-103,721

'

'

'

'

Weighted-average common shares outstanding – basic

'

'

'

'

'

'

'

'

209,797,238

159,109,424

152,473,336

'

'

'

'

Income (loss) from continuing operations, basic (usd per share)

'

'

'

'

'

'

'

'

($0.15)

$0.99

($0.20)

'

'

'

'

Income (loss) from discontinued operations, basic (usd per share)

'

'

'

'

'

'

'

'

$0.08

$0

($0.48)

'

'

'

'

Net income (loss) attributable to common shareholders, basic (usd per share)

($0.04)

$0.01

$0

($0.04)

($0.04)

$1.09

($0.02)

($0.01)

($0.07)

$0.99

($0.68)

'

'

'

'

Impact of assumed conversions:

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share Options

'

'

'

'

'

'

'

'

0

0

0

'

'

'

'

Operating Partnership Units

'

'

'

'

'

'

'

'

0

1,585

0

'

'

'

'

6.00% Convertible Guaranteed Notes

'

'

'

'

'

'

'

'

0

8,953

0

'

'

'

'

Debt interest rate percentage

'

'

'

'

'

'

'

'

'

'

'

6.00%

6.00%

6.00%

6.00%

Income (loss) from continuing operations attributable to common shareholders, net of deductions

'

'

'

'

'

'

'

'

-31,777

167,247

-30,194

'

'

'

'

Operating Partnership Units

'

'

'

'

'

'

'

'

0

-392

0

'

'

'

'

Income (loss) from discontinued operations attributable to common shareholders, net of deductions

'

'

'

'

'

'

'

'

17,688

-280

-73,527

'

'

'

'

Net income (loss) attributable to common shareholders

'

'

'

'

'

'

'

'

($14,089)

$166,967

($103,721)

'

'

'

'

Effect of dilutive securities:

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share Options

'

'

'

'

'

'

'

'

0

306,449

0

'

'

'

'

Operating Partnership Units

'

'

'

'

'

'

'

'

0

4,438,708

0

'

'

'

'

6.00% Convertible Guaranteed Notes

'

'

'

'

'

'

'

'

0

15,805,245

0

'

'

'

'

Weighted-average common shares outstanding

'

'

'

'

'

'

'

'

209,797,238

179,659,826

152,473,336

'

'

'

'

Income (loss) per common share:

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Income (loss) from continuing operations, diluted (usd per share)

'

'

'

'

'

'

'

'

($0.15)

$0.93

($0.20)

'

'

'

'

Income (loss) from discontinued operations, diluted (usd per share)

'

'

'

'

'

'

'

'

$0.08

$0

($0.48)

'

'

'

'

Net income (loss) attributable to common shareholders, diluted (usd per share)

($0.04)

$0.01

$0

($0.04)

($0.04)

$0.96

($0.02)

($0.01)

($0.07)

$0.93

($0.68)

'

'

'

'

Investments_in_Real_Estate_and2

Investments in Real Estate and Real Estate Under Construction (Details) (USD $)

3 Months Ended

12 Months Ended

12 Months Ended

0 Months Ended

12 Months Ended

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Sep. 01, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Sep. 01, 2012

Sep. 01, 2012

properties

properties

properties

properties

Lender Subsidiary [Member]

Office Property [Member]

Office Property [Member]

Office Property [Member]

Office Property [Member]

Office Property [Member]

Office Property [Member]

Office Property [Member]

Office Property [Member]

Office Property [Member]

Office Property [Member]

Industrial Property [Member]

Industrial Property [Member]

Industrial Property [Member]

Industrial Property [Member]

Industrial Property [Member]

Industrial Property [Member]

Industrial Property [Member]

Retail Property [Member]

Retail Property [Member]

Retail Property [Member]

Retail Property [Member]

Retail Property [Member]

Retail Property [Member]

Retail Property [Member]

Land [Member]

Land [Member]

Development Deals [Member]

Development Deals [Member]

In-place Lease Values [Member]

In-place Lease Values [Member]

Tenant Relationship Values [Member]

Tenant Relationship Values [Member]

Above-market Leases [Member]

Above-market Leases [Member]

Net Lease Strategic Assets Fund L P [Member]

Net Lease Strategic Assets Fund L P [Member]

Net Lease Strategic Assets Fund L P [Member]

Net Lease Strategic Assets Fund L P [Member]

Net Lease Strategic Assets Fund L P [Member]

Net Lease Strategic Assets Fund L P [Member]

Net Lease Strategic Assets Fund L P [Member]

Common Stock [Member]

Preferred Shares [Member]

states

states

states

states

sqft

Denver, Colorado [Member]

Other Locations [Member]

Omaha, Nebraska [Member]

Huntington, West Virginia [Member]

Florence, South Carolina [Member]

Jessup, Pennsylvania [Member]

Saint Joseph, Missouri [Member]

Phoenix, Arizona [Member]

Eugene, Oregon [Member]

Las Vegas, Nevada [Member]

Long Island City, New York [Member]

Houston, Texas [Member]

Missouri City, Texas [Member]

Shreveport, Louisiana [Member]

Rantoul, Illinois [Member]

Bingen, Washington [Member]

Lewisburg, Tennessee [Member]

Tuscaloosa, Alabama [Member]

Albany, Georgia [Member]

Valdosta, Georgia [Member]

Valdosta, Georgia [Member]

Opelika Alabama [Member]

Opelika Alabama [Member]

Richmond, Virginia [Member]

New York, New York [Member]

Danville, Virginia [Member]

states

In-place Lease Values [Member]

Tenant Relationship Values [Member]

Above-market Leases [Member]

Net Lease Strategic Assets Fund L P [Member]

Net Lease Strategic Assets Fund L P [Member]

properties

sqft

sqft

sqft

sqft

properties

properties

sqft

Investments in Real Estate and Real Estate Under Construction [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Real Estate Revenue, Net

$109,606,000

[1]

$96,950,000

[1]

$97,763,000

[1]

$94,121,000

[1]

$92,059,000

[1]

$83,800,000

[1]

$78,961,000

[1]

$75,360,000

[1]

$398,440,000

$330,180,000

$292,298,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$42,576,000

$14,504,000

'

'

'

'

'

'

Net loss attributable to Lexington Realty Trust shareholders

-7,001,000

5,155,000

7,832,000

-2,123,000

-1,755,000

175,289,000

5,626,000

5,478,000

3,863,000

184,638,000

-89,778,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4,419,000

1,667,000

'

'

'

'

'

'

Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

167,864,000

'

'

'

'

'

'

'

'

Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncontrolling Interest

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

373,000

'

'

'

'

'

'

'

'

Gain (Loss) on Acquisition of Real Estate

'

'

'

'

'

'

'

'

0

167,864,000

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

167,864,000

'

'

'

'

'

'

Real Estate and Accumulated Depreciation and Amortization

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Buildings and building improvements

3,008,709,000

'

'

'

2,969,050,000

'

'

'

3,008,709,000

2,969,050,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Land, land estates and land improvements

793,418,000

'

'

'

581,199,000

'

'

'

793,418,000

581,199,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fixtures and equipment

5,861,000

'

'

'

7,705,000

'

'

'

5,861,000

7,705,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Construction in progress

4,306,000

'

'

'

6,512,000

'

'

'

4,306,000

6,512,000

'

'

'

1,969,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Real estate intangibles:

762,157,000

'

'

'

685,914,000

'

'

'

762,157,000

685,914,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

486,743,000

401,503,000

172,640,000

179,655,000

102,774,000

104,756,000

'

'

'

'

'

'

'

'

'

Investments in real estate under construction

74,350,000

'

'

'

65,122,000

'

'

'

74,350,000

65,122,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Real estate, gross

4,648,801,000

'

'

'

4,315,502,000

'

'

'

4,648,801,000

4,315,502,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Accumulated depreciation and amortization

-1,223,381,000

[2]

'

'

'

-1,150,417,000

[2]

'

'

'

-1,223,381,000

[2]

-1,150,417,000

[2]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Real estate, net

3,425,420,000

'

'

'

3,165,085,000

'

'

'

3,425,420,000

3,165,085,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Finite-Lived Intangible Assets, Accumulated Amortization

447,764,000

'

'

'

412,349,000

'

'

'

447,764,000

412,349,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Estimated Amortization, 2014

44,003,000

'

'

'

'

'

'

'

44,003,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Estimated Amortization, 2015

34,932,000

'

'

'

'

'

'

'

34,932,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Estimated Amortization, 2016

28,640,000

'

'

'

'

'

'

'

28,640,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Estimated Amortization, 2017

25,239,000

'

'

'

'

'

'

'

25,239,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Estimated Amortization, 2018

21,498,000

'

'

'

'

'

'

'

21,498,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Below Market Leases [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Below-market Leases, Net of Accretion

59,781,000

'

'

'

71,513,000

'

'

'

59,781,000

71,513,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Future Accretion, 2014

'

'

'

'

'

'

'

'

5,176,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Future Accretion, 2015

'

'

'

'

'

'

'

'

4,489,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Future Accretion, 2016

'

'

'

'

'

'

'

'

3,380,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Future Accretion, 2017

'

'

'

'

'

'

'

'

2,935,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Future Accretion, 2018

'

'

'

'

'

'

'

'

2,911,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Acquired Properties [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Initial Cost Basis

'

'

'

'

'

'

'

'

532,538,000

182,608,000

'

'

34,547,000

[3]

13,144,000

[4]

39,125,000

12,558,000

5,094,000

24,917,000

17,571,000

53,200,000

17,558,000

'

42,124,000

81,400,000

23,000,000

12,941,000

'

'

'

8,397,000

[5]

7,074,000

[6]

'

7,791,000

[7]

'

7,978,000

[7]

'

302,000,000

[8]

4,727,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Land

253,492,000

'

'

'

31,602,000

'

'

'

253,492,000

31,602,000

'

'

2,207,000

[3]

1,522,000

[4]

2,058,000

1,368,000

774,000

2,520,000

607,000

5,585,000

1,541,000

'

0

15,055,000

14,555,000

1,078,000

'

'

'

2,793,000

[5]

1,468,000

[6]

'

2,128,000

[7]

'

1,446,000

[7]

'

224,935,000

[8]

3,454,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Buildings and building improvements

180,724,000

'

'

'

122,238,000

'

'

'

180,724,000

122,238,000

'

'

26,724,000

[3]

10,374,000

[4]

32,343,000

9,527,000

3,629,000

17,656,000

14,004,000

36,099,000

13,099,000

'

42,124,000

57,949,000

5,895,000

10,134,000

'

'

'

5,604,000

[5]

5,606,000

[6]

'

5,663,000

[7]

'

6,532,000

[7]

'

0

[8]

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Finite-Lived Intangible Asset, Off-market Lease, Favorable, Gross

673,000

'

'

'

'

'

'

'

673,000

'

'

'

0

[3]

0

[4]

0

'

'

'

'

'

'

'

0

0

'

'

'

'

'

0

[5]

0

[6]

'

'

'

'

'

0

[8]

673,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Lease in-place Value

97,649,000

'

'

'

22,869,000

'

'

'

97,649,000

22,869,000

'

'

5,616,000

[3]

1,248,000

[4]

4,724,000

1,405,000

505,000

3,336,000

2,528,000

8,956,000

2,414,000

'

0

8,396,000

2,135,000

1,590,000

'

'

'

0

[5]

0

[6]

'

0

[7]

'

0

[7]

'

77,065,000

[8]

600,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Customer Relationships Value

'

'

'

'

5,899,000

'

'

'

'

5,899,000

'

'

'

'

'

258,000

186,000

1,405,000

432,000

2,560,000

504,000

'

'

'

415,000

139,000

'

'

'

'

'

'

0

[7]

'

0

[7]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Weighted-average life of intangible assets (years)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'15 years 3 months 18 days

'15 years 8 months 12 days

'82 years 6 months

'16 years

'

'

'

'

'

'

'6 years 2 months 12 days

'4 years 7 months 6 days

'8 years 4 months 24 days

'

'

Incurred tenant costs

'

'

'

'

'

'

'

'

'

'

'

'

3,825,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Incurred leasing costs

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

323,000

338,000

488,000

'

355,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Deposit Towards Purchase Of Property

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

638,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Estimated Property Purchase Price/Completion Cost

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

12,767,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Acquisition expenses

'

'

'

'

'

'

'

'

812,000

947,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

230,000

'

'

'

'

'

'

Development Arrangements Outstanding [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Square feet

'

'

'

'

'

'

'

'

'

'

'

1,396,000

'

'

'

'

'

'

'

'

'

180,000

'

'

'

'

813,000

124,000

'

'

'

'

'

'

'

279,000

'

'

'

'

'

'

'

'

'

'

5,800,000

'

'

'

'

'

'

'

'

Expected Maximum Commitment/Contribution

'

'

'

'

'

'

'

'

'

'

'

189,700,000

'

'

'

'

'

'

'

'

'

29,600,000

'

'

'

'

42,600,000

18,900,000

'

'

'

'

'

'

'

98,600,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Lease term

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'20 years

'

'

'

'

'20 years

'12 years

'

'

'

'

'

'

'

'15 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Real Estate Investment Capitalized Interest

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,472,000

1,291,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Business Acquisition, Cost of Acquired Entity, Cash Paid

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

9,438,000

'

'

'

'

'

'

'

'

Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

15.00%

100.00%

Real Estate Investments, Joint Ventures

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

40,047,000

'

'

'

'

'

'

'

'

Number of Consolidated Properties

220

'

'

'

220

'

'

'

220

220

'

'

'

4

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3

'

'

'

'

'

'

'

'

'

41

'

'

'

'

'

'

'

'

Number of States in which Entity Operates

41

'

'

'

41

'

'

'

41

41

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

23

'

'

'

'

'

'

'

'

Tenant in Common Interest, Ownership Percentage

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

40.00%

'

'

'

'

'

'

'

'

Business Combination, Major Class of Assets and Liabilities

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Real estate assets

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

325,310,000

'

'

'

'

'

'

'

'

Lease related intangible assets

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

124,330,000

'

'

'

'

'

'

'

'

Cash

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

8,107,000

'

'

'

'

'

'

'

'

Other assets

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

36,179,000

'

'

'

'

'

'

'

'

Total acquired assets

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

493,926,000

'

'

'

'

'

'

'

'

Secured debt

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

252,517,000

'

'

'

'

'

'

'

'

Other liabilities, including below-market leases

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

23,686,000

'

'

'

'

'

'

'

'

Total assumed liabilities

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

276,203,000

'

'

'

'

'

'

'

'

Fair value of acquired net assets (represents 100% interest)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

217,723,000

'

'

'

'

'

'

'

'

Acquired Finite-lived Intangible Asset, Amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

124,330,000

'

'

59,819,000

24,828,000

39,683,000

'

'

Off-market Lease, Unfavorable

69,667,000

'

'

'

79,908,000

'

'

'

69,667,000

79,908,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,529,000

'

'

'

'

'

'

'

Acquired Finite-lived Intangible Liability, Weighted Average Useful Life

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'2 years 8 months 12 days

'

'

'

'

'

'

'

Weighted-average life of intangible assets

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'15 years 3 months 18 days

'15 years 8 months 12 days

'82 years 6 months

'16 years

'

'

'

'

'

'

'6 years 2 months 12 days

'4 years 7 months 6 days

'8 years 4 months 24 days

'

'

Gross revenues

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

372,603,000

356,918,000

'

'

'

'

'

Net income (loss) attributable to Lexington Realty Trust shareholders

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

8,000

-111,787,000

'

'

'

'

'

Net loss attributable to common shareholders

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

($22,985,000)

($135,924,000)

'

'

'

'

'

Net loss per common share - basic and diluted

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

($0.14)

($0.89)

'

'

'

'

'

[1]

All periods have been adjusted to reflect the impact of properties sold during the years ended December 31, 2013 and 2012, and properties classified as held for sale, which are reflected in discontinued operations in the Consolidated Statements of Operations.

[2]

Includes accumulated amortization of real estate intangible assets of $447,764 and $412,349 in 2013 and 2012, respectively. The estimated amortization of the above real estate intangible assets for the next five years is $44,003 in 2014, $34,932 in 2015, $28,640 in 2016, $25,239 in 2017 and $21,498 in 2018.

[3]

The Company incurred additional tenant related costs of $3,825.

[4]

Includes four properties. One property was under construction at December 31, 2013, $1,969 of construction in progress costs are included in building and improvements above.

[5]

The Company incurred leasing costs of $323. The property was sold in September 2013.

[6]

The Company incurred leasing costs of $338.

[7]

Incurred leasing costs of $488 for Valdosta and $355 for Opelika. Properties were sold in 2013.

[8]

Includes three properties.

Sales_of_Real_Estate_and_Disco2

Sales of Real Estate and Discontinued Operations (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
	properties	properties
Discontinued Operations and Disposal Groups [Abstract]	'	'	'
Aggregate gross disposition price	$75,519	$142,022	$124,039
Aggregate Gain on Sales of Properties	24,472	13,291	6,557
Debt satisfaction gains (charges), net	8,955	-178	-606
Properties classified as held-for-sale (in # of properties)	0	0	'
Total gross revenues	7,577	22,591	44,247
Pre-tax net income (loss), including gains on sales	$19,746	$1,807	($87,533)

Impairment_of_Real_Estate_Deta

Impairment of Real Estate (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Continuing Operations [Member]	'	'	'
Impairment of Real Estate	'	'	'
Impairment charges on real estate	$21,640	$4,262	$17,008
Discontinued Operations [Member]	'	'	'
Impairment of Real Estate	'	'	'
Impairment charges on real estate	$12,920	$5,707	$100,435

Loans_Receivable_Details

Loans Receivable (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans receivable, net	$99,443		$72,540
Loan carrying-value	99,443	[1]	72,540	[1]
Number of types of financing receivable	2		'
Norwalk, Connecticut [Member]	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loan carrying-value	28,186	[1],[2]	3,479	[1],[2]
Interest Rate	7.50%	[2]	'
Maximum contracted lending amount	32,600		'
Homestead Florida [Member]	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loan carrying-value	10,239	[1],[3]	8,036	[1],[3]
Interest Rate	7.50%	[3]	'
Maximum contracted lending amount	10,660		'
Schaumburg, Illinios [Member]	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loan carrying-value	0	[1],[4]	21,885	[1],[4]
Interest Rate	20.00%	[4]	'
Unrecorded interest income related to impaired loan	2,939		2,647
Westmont, Illinios [Member]	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans receivable, net	12,610		'
Impaired Financing Receivable, Unpaid Principal Balance	26,549		'
Loan carrying-value	12,610	[1],[5]	26,902	[1],[5]
Interest Rate	6.45%	[5]	'
Impaired Financing Receivable, Recorded Investment	13,939		'
Loans and Leases Receivable, Impaired, Troubled Debt, Interest Income	1,737		'
Impaired Financing Receivable, Average Recorded Investment	25,562		'
Southfield, Michigan [Member]	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loan carrying-value	6,610	[1]	7,364	[1]
Interest Rate	4.55%		'
Austin, Texas [Member]	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loan carrying-value	2,389	[1]	2,038	[1]
Interest Rate	16.00%		'
Kennewick, Washington [Member]	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loan carrying-value	37,030	[1],[6]	0	[1],[6]
Interest Rate	9.00%	[6]	'
Maximum contracted lending amount	85,000		'
Accrued interest on construction advances	6.50%		'
Other Loan Locations [Member]	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loan carrying-value	$2,379	[1]	$2,836	[1]
Interest Rate	8.00%		'
[1]	Loan carrying value includes accrued interest and is net of origination costs, loan losses and fee eliminations, if any.
[2]	The Company is committed to lend up to $32,600.
[3]	The Company is committed to lend up to $10,660.
[4]	Borrower defaulted on the loan. The Company did not record interest of $2,939 and $2,647 in 2013 and 2012, respectively, representing the interest earned since default. In 2013, the Company foreclosed on the borrower and acquired the office property collateral which is net leased through December 2022.
[5]	Includes four properties. One property was under construction at December 31, 2013, $1,969 of construction in progress costs are included in building and improvements above.
[6]	The Company is committed to lend up to $85,000. During construction advances accrue interest at 6.5% per annum. Estimated construction completion is March 2014.

Fair_Value_Measurements_Detail

Fair Value Measurements (Details) (USD $)	Dec. 31, 2013		Dec. 31, 2012
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Impaired loan receivable	$99,443	[1]	$72,540	[1]
Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Interest rate swap assets	4,439		-6,556
Fair Value, Measurements, Recurring [Member] | Fair Value Measurements Using Level 1 [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Interest rate swap assets	0		0
Fair Value, Measurements, Recurring [Member] | Fair Value Measurements Using Level 2 [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Interest rate swap assets	4,439		-6,556
Fair Value, Measurements, Recurring [Member] | Fair Value Measurements Using Level 3 [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Interest rate swap assets	0		0
Fair Value, Measurements, Nonrecurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Impaired real estate assets	12,549		3,327
Impaired loan receivable	12,610		'
Investments, Fair Value Disclosure	683		'
Fair Value, Measurements, Nonrecurring [Member] | Fair Value Measurements Using Level 1 [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Impaired real estate assets	0		0
Impaired loan receivable	0		'
Investments, Fair Value Disclosure	0		'
Fair Value, Measurements, Nonrecurring [Member] | Fair Value Measurements Using Level 2 [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Impaired real estate assets	0		0
Impaired loan receivable	0		'
Investments, Fair Value Disclosure	0		'
Fair Value, Measurements, Nonrecurring [Member] | Fair Value Measurements Using Level 3 [Member]	'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'
Impaired real estate assets	12,549		3,327
Impaired loan receivable	12,610		'
Investments, Fair Value Disclosure	$683		'
[1]	Loan carrying value includes accrued interest and is net of origination costs, loan losses and fee eliminations, if any.

Fair_Value_Measurements_Detail1

Fair Value Measurements (Details 2) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Carrying Amount [Member]	'	'
Assets	'	'
Loans Receivable (Level 3)	$99,443	$72,540
Liabilities	'	'
Debt (Level 3)	2,055,807	1,878,208
Fair Value [Member]	'	'
Assets	'	'
Loans Receivable (Level 3)	95,734	61,734
Liabilities	'	'
Debt (Level 3)	$2,028,558	$1,835,157

Investment_in_and_Advances_to_1

Investment in and Advances to Non-Consolidated Entities (Details) (USD $)

12 Months Ended

1 Months Ended

12 Months Ended

1 Months Ended

12 Months Ended

12 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Jul. 31, 2012

Oct. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Aug. 31, 2013

Jul. 31, 2013

Mar. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Lexington Reality Advisors Inc [Member]

Lexington Reality Advisors Inc [Member]

Lexington Reality Advisors Inc [Member]

Pemlex LLC [Member]

Joint Venture [Member]

Concord and CDH CDO [Member]

Other Nonconsolidated Entity [Member]

Other Nonconsolidated Entity [Member]

Partnership [Member]

Partnership [Member]

Partnership [Member]

MARYLAND [Member]

Long Island City, New York [Member]

Palm Beach Garden, Florida [Member]

Palm Beach Garden, Florida [Member]

Humble Texas [Member]

Nonrecourse Mortgage [Member]

Mortgages [Member]

Mortgages [Member]

Maximum [Member]

Minimum [Member]

Joint Venture [Member]

Joint Venture [Member]

Joint Venture [Member]

Joint Venture [Member]

Joint Venture [Member]

Partnership [Member]

Investments in and Advances to Affiliates [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Investment in joint venture

$8,193,000

$20,172,000

$19,940,000

'

'

'

'

$39,456,000

'

'

'

'

'

'

$5,000,000

$8,918,000

'

'

'

'

'

'

Lease term

'

'

'

'

'

'

'

'20 years

'

'

'

'

'

'

'99 years

'

'

'15 years

'17 years

'

'

'

Co-venture equity ownership percentage

'

'

'

'

'

'

'

15.00%

'

'

'

'

40.00%

27.00%

'

'

25.00%

36.00%

15.00%

'

'

'

Economic Interest in Joint Venture

'

'

'

'

'

'

'

'

'

'

'

100.00%

'

'

'

'

'

'

'

'

'

'

Advances to Affiliate

'

'

'

'

'

'

'

18,791,000

'

'

'

'

'

'

'

'

'

12,000,000

'

'

'

'

Distributions Payable to Real Estate Partnerships

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2,557,000

'

'

'

'

'

Property Purchase Price

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

29,750,000

27,750,000

'

'

'

Debt interest rate percentage

'

'

'

'

'

'

'

4.01%

'

'

'

'

'

'

'

'

'

'

'

4.70%

'

'

Proceeds from Divestiture of Interest in Consolidated Subsidiaries

'

'

'

'

'

'

13,218,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Investment sold, carrying amount

'

'

'

'

'

'

'

'

7,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Loss on impairment

'

'

'

'

'

'

'

'

'

925,000

1,559,000

'

'

'

'

'

'

'

'

'

'

'

Mortgage debt

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

15,260,000

9,737,000

27,793,000

Interest rate range, minimum

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

5.20%

Interest rate range, maximum

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

10.60%

Weighted-average interest rate

5.30%

5.60%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

7.20%

Advisory fees

'

'

'

$512,000

$875,000

$804,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Mortgages_and_Notes_Payable_De

Mortgages and Notes Payable (Details) (USD $)

12 Months Ended

0 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

0 Months Ended

12 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Feb. 12, 2013

Feb. 12, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Feb. 12, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Feb. 12, 2013

Feb. 12, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Minimum [Member]

Minimum [Member]

Maximum [Member]

Maximum [Member]

Unsecured Revolving Credit Facility [Member]

Unsecured Revolving Credit Facility [Member]

Mortgages and Notes Payable [Member]

Line of Credit [Member]

Unsecured Term Loan [Member]

Unsecured Term Loan [Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Secured Term Loan [Member]

Secured Term Loan [Member]

Secured Term Loan 1 [Member]

Secured Term Loan 2 [Member]

Condition One [Member]

Condition Four [Member]

Unsecured Revolving Credit Facility, Expiring February 2018 [Member]

Unsecured Revolving Credit Facility, Expiring February 2018 [Member]

Unsecured Revolving Credit Facility, Expiring February 2018 [Member]

Unsecured Revolving Credit Facility, Expiring February 2018 [Member]

Unsecured Revolving Credit Facility, Expiring February 2018 [Member]

Term Loan Facility from Key Bank [Member]

Term Loan Facility from Key Bank [Member]

Term Loan Facility from Key Bank [Member]

Term Loan Facility from Key Bank [Member]

Secured Revolving Credit Facility, Expiring January 2015 [Member]

Secured Revolving Credit Facility, Expiring January 2015 [Member]

Unsecured Revolving Credit Facility, Expiring January 2019 [Member]

Unsecured Revolving Credit Facility, Expiring January 2019 [Member]

Unsecured Revolving Credit Facility, Expiring January 2019 [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Secured Term Loan [Member]

Secured Term Loan [Member]

Minimum [Member]

Maximum [Member]

Unsecured Revolving Credit Facility [Member]

Unsecured Revolving Credit Facility [Member]

Minimum [Member]

Maximum [Member]

Unsecured Term Loan [Member]

Secured Revolving Credit Facility [Member]

Secured Term Loan [Member]

Secured Term Loan [Member]

Secured Term Loan [Member]

Minimum [Member]

Maximum [Member]

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Mortgages and notes payable

$1,197,489,000

$1,415,961,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Effective interest rate

'

'

'

3.60%

3.60%

8.50%

8.50%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Weighted-average interest rate

5.30%

5.60%

'

'

'

'

'

'

'

'

'

'

'

1.05%

1.42%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Term

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'5 years

'

'

'

'

'

Interest rate stated percentage rate range minimum excluding LIBOR

'

'

'

'

'

'

'

1.50%

2.05%

'

'

1.45%

2.00%

'

'

'

'

'

'

2.00%

2.85%

'

0.95%

1.73%

'

'

'

1.10%

2.10%

'

'

'

'

1.50%

2.25%

Debt Instrument, Basis Spread on Variable at the End of the Period

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.15%

'

'

'

'

1.35%

'

'

'

'

'

1.75%

'

'

Line of Credit Facility, Remaining Borrowing Capacity

344,356,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Outstanding letters of credit

7,644,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt instrument amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

151,000,000

255,000,000

25,000,000

35,551,000

'

'

'

'

'

400,000,000

300,000,000

'

'

'

250,000,000

300,000,000

255,000,000

'

'

'

Revolving credit facility amount outstanding

'

'

'

'

'

'

'

'

'

'

48,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gains (charges) on debt satisfaction from continuing operations

-11,861,000

-16,000

45,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,578,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest Paid, Capitalized

2,397,000

3,062,000

1,792,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Scheduled Principal and Balloon Payments on Mortgages and Notes Payable

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2014

'

'

'

'

'

'

'

'

'

123,212,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2015

'

'

'

'

'

'

'

'

'

301,591,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2016

'

'

'

'

'

'

'

'

'

168,899,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2017

'

'

'

'

'

'

'

'

'

137,035,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2018

'

'

'

'

'

'

'

'

'

188,764,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Thereafter

'

'

'

'

'

'

'

'

'

731,988,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Long-term debt

'

'

'

'

'

'

'

'

'

$1,651,489,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Senior_Notes_Convertible_Notes2

Senior Notes, Convertible Notes, Exchangeable Notes and Trust Preferred Securities (Details) (USD $)

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2010

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2010

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2007

Dec. 31, 2007

Dec. 31, 2013

Dec. 31, 2012

Jun. 30, 2013

Senior Notes, Convertible Notes, Exchangeable Notes, and Trust Preferred Securities [Member]

Six Percent Convertible Guaranteed Note [Member]

Six Percent Convertible Guaranteed Note [Member]

Six Percent Convertible Guaranteed Note [Member]

Six Percent Convertible Guaranteed Note [Member]

Five Percent Exchangeable Guaranteed Note [Member]

Five Percent Exchangeable Guaranteed Note [Member]

Five Percent Exchangeable Guaranteed Note [Member]

Five Percent Exchangeable Guaranteed Note [Member]

Six Point Eight Zero Four Percent Trust Preferred Securities [Member]

Six Point Eight Zero Four Percent Trust Preferred Securities [Member]

Six Point Eight Zero Four Percent Trust Preferred Securities [Member]

Senior Notes Due 2023 [Member]

Senior Notes [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Basis spread on variable rate

'

'

'

'

'

'

'

'

'

'

'

'

'

1.70%

'

'

'

Debt Instrument, Description of Variable Rate Basis

'

'

'

'

'

'

'

'

'

'

'

'

'

'three month LIBOR plus 170 basis points

'

'

'

Debt Conversion, Converted Instrument, Cash Payment During Conversion

$3,270,000

$2,427,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Conversion, Converted Instrument, Debt Satisfaction Expense

13,536,000

7,842,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt instrument amount

'

'

'

'

'

28,991,000

83,896,000

'

115,000,000

'

'

'

450,000,000

200,000,000

'

'

250,000,000

Debt Instrument, Percentage of Issuance Price

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

99.03%

Debt interest rate percentage

'

'

'

'

'

6.00%

6.00%

6.00%

6.00%

'

'

'

5.45%

6.80%

'

'

4.25%

Percent of notes required to be repurchased at the option of the holders on set dates

'

'

'

100.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

Convertible debt conversion ratio

'

'

'

'

'

147.8206

'

'

'

'

'

'

'

'

'

'

'

Convertible debt conversion price

'

'

'

'

'

$6.76

'

'

'

'

'

'

'

'

'

'

'

Repurchase of exchangeable notes

0

62,150,000

0

'

'

'

'

'

'

'

62,150,000

'

'

'

'

'

'

Debt satisfaction gains (charges)

'

'

'

'

'

'

'

'

'

'

-44,000

'

'

'

'

'

'

Carrying amount of debt component

'

'

'

'

'

27,491,000

78,127,000

'

'

'

'

'

'

'

'

'

'

Carrying amount of equity component

'

'

'

'

'

-26,032,000

3,654,000

'

'

'

'

'

'

'

'

'

'

Effective interest rate

'

'

'

'

'

8.10%

8.10%

'

'

'

'

'

'

'

'

'

'

Debt Conversion, Converted Instrument, Amount

54,905,000

31,104,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock Issued During Period, Shares, Conversion of Convertible Securities

7,944,673

4,487,060

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Aggregate if-converted value in excess of aggregate principal amount

'

'

'

'

'

14,296,000

42,579,000

'

'

'

'

'

'

'

'

'

'

Coupon interest

'

'

'

'

'

2,296,000

6,634,000

6,900,000

'

0

188,000

3,387,000

'

'

'

'

'

Discount amortization

'

'

'

'

'

658,000

1,868,000

1,938,000

'

0

34,000

664,000

'

'

'

'

'

Interest Expense

'

'

'

'

'

2,954,000

8,502,000

8,838,000

'

0

222,000

4,051,000

'

'

'

'

'

Principal amount outstanding on Trust Preferred Securities

'

'

'

'

'

'

'

'

'

'

'

'

'

'

129,120,000

129,120,000

'

Scheduled Principal Payments for Debt Instruments [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2014

'

'

'

'

0

'

'

'

'

'

'

'

'

'

'

'

'

2015

'

'

'

'

0

'

'

'

'

'

'

'

'

'

'

'

'

2016

'

'

'

'

0

'

'

'

'

'

'

'

'

'

'

'

'

2017

'

'

'

'

28,991,000

[1]

'

'

'

'

'

'

'

'

'

'

'

'

2018

'

'

'

'

0

'

'

'

'

'

'

'

'

'

'

'

'

Thereafter

'

'

'

'

379,120,000

'

'

'

'

'

'

'

'

'

'

'

'

Long-term Debt, Gross

'

'

'

'

408,111,000

'

'

'

'

'

'

'

'

'

'

'

'

Debt discounts

'

'

'

'

-3,793,000

-1,500,000

-5,769,000

'

'

'

'

'

'

'

'

'

-2,435,000

Long-term debt

'

'

'

'

$404,318,000

'

'

'

'

'

'

'

'

'

'

'

'

[1]

Although the 6.00% Convertible Guaranteed Notes mature in 2030, the notes can be put to the Company in 2017.

Derivatives_and_Hedging_Activi2

Derivatives and Hedging Activities (Details) (USD $)

12 Months Ended

12 Months Ended

12 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2008

Oct. 31, 2011

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Interest Rate Swap [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Not Designated as Hedging Instrument [Member]

Not Designated as Hedging Instrument [Member]

Not Designated as Hedging Instrument [Member]

Secured Term Loan [Member]

Secured Term Loan [Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Cash Flow Hedging [Member]

Cash Flow Hedging [Member]

Cash Flow Hedging [Member]

Forward Contracts [Member]

Forward Contracts [Member]

Forward Contracts [Member]

Accounts Payable And Other Liabilities [Member]

Accounts Payable And Other Liabilities [Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Other Assets [Member]

derivative_instrument

Interest Expense [Member]

Interest Expense [Member]

Derivative [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Debt instrument amount

'

'

'

'

$406,000,000

'

'

'

'

'

$151,000,000

$255,000,000

Derivative Instrument, Settlement Amount

'

3,539,000

'

'

'

'

'

'

'

'

'

'

Expected amount of derivative related interest to be reclassified to interest expense over the next 12 months

4,344,000

'

'

'

'

'

'

'

'

'

'

'

Number of derivative instruments held

'

'

'

'

8

'

'

'

'

'

'

'

Notional amount of derivatives

'

'

'

'

406,000,000

'

'

'

'

'

'

'

Forward purchase equity commitment, shares

'

'

'

'

'

'

'

3,500,000

'

'

'

'

Share repurchases, final price paid per share

'

'

'

'

'

'

'

$5.60

'

'

'

'

Forward contract indexed to issuers equity share settlement cash settlement value

'

'

'

'

'

'

'

'

4,024,000

'

'

'

Forward contract indexed to issuers equity share settlement shares retired

'

'

'

'

'

'

'

'

3,974,645

'

'

'

Derivative liabilities

'

'

4,439,000

-6,556,000

'

'

'

'

'

'

'

'

Amount of Loss Recognized in OCI on Derivative (Effective Portion)

'

'

'

'

'

7,559,000

-8,886,000

'

'

'

'

'

Amount of Loss Reclassified from Accumulated OCI into Income (Effective Portion)

'

1,837,000

'

'

'

3,104,000

724,000

'

'

'

'

'

Amount of Gain (Loss) Recognized in Income on Derivative

'

'

'

'

'

'

'

'

'

$2,030,000

'

'

Leases_Details

Leases (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Minimum Future Rental Receipts [Abstract]	'	'	'
2014	$362,743	'	'
2015	334,370	'	'
2016	303,455	'	'
2017	272,390	'	'
2018	249,645	'	'
Thereafter	5,767,751	'	'
Future Minimum Payments Receivable	7,290,354	'	'
Future Rental Payments [Abstract]	'	'	'
2014	5,229	'	'
2015	5,203	'	'
2016	4,907	'	'
2017	4,861	'	'
2018	4,645	'	'
Thereafter	39,484	'	'
Future Minimum Payments Due	64,329	'	'
Rent expense for leasehold interests	1,284	1,198	776
Fixed rent per annum payment thereafter	1,153	'	'
Incentive from lessor	845	'	'
Minimum lease payment 2014	66	'	'
Minimum lease payment 2015	55	'	'
Minimum lease payment 2016	55	'	'
Minimum lease payment 2017	14	'	'
Rent expense for corporate headquarters	$1,338	$1,029	$1,392

Concentration_of_Risk_Details

Concentration of Risk (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
	tenants	tenants	tenants
Concentration Risk [Line Items]	'	'	'
Number of tenants representing more than 10% of rental revenue	0	0	0
Maximum [Member] | Tenant Concentration Risk [Member]	'	'	'
Concentration Risk [Line Items]	'	'	'
Concentration risk percentage	10.00%	10.00%	10.00%

Equity_Details

Equity (Details) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Equity [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Common shares issued through public offering and direct share purchase plan during period	'	'	'	'	'	'	'	'	36,012,313	18,289,557	11,109,760
Proceeds from issuance of common shares	'	'	'	'	'	'	'	'	$434,927,000	$162,747,000	$99,730,000
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures	'	'	'	'	'	'	'	'	1,893,409	643,450	609,182
OP Unit Equivalent in Common Shares	'	'	'	'	'	'	'	'	1.13	'	'
OP Units Outstanding	3,618,000	'	'	'	'	'	'	'	3,618,000	'	'
Partners Capital Account, Shares Issued For Units Redeemed	'	'	'	'	'	'	'	'	202,241	257,427	398,927
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax [Roll Forward]	'	'	'	'	'	'	'	'	'	'	'
Gains and Losses on Cash Flow Hedges, Beginning	'	'	'	-6,224,000	'	'	'	'	-6,224,000	'	'
Other comprehensive income before reclassifications	'	'	'	'	'	'	'	'	7,559,000	'	'
Amounts of loss reclassified from accumulated other comprehensive loss to interest expense	'	'	'	'	'	'	'	'	3,104,000	'	'
Gains and Losses on Cash Flow Hedges, Ending	4,439,000	'	'	'	-6,224,000	'	'	'	4,439,000	-6,224,000	'
Transfers from noncontrolling interests:	'	'	'	'	'	'	'	'	'	'	'
Net income (loss) attributable to Lexington Realty Trust shareholders	-7,001,000	5,155,000	7,832,000	-2,123,000	-1,755,000	175,289,000	5,626,000	5,478,000	3,863,000	184,638,000	-89,778,000
Increase in additional paid-in-capital for redemption of noncontrolling OP units	'	'	'	'	'	'	'	'	1,053,000	1,343,000	2,187,000
Change from net income (loss) attributable to shareholders and transfers from noncontrolling interests	'	'	'	'	'	'	'	'	2,683,000	181,659,000	-77,397,000
Accumulated Distributions in Excess of Net Income [Member]	'	'	'	'	'	'	'	'	'	'	'
Transfers from noncontrolling interests:	'	'	'	'	'	'	'	'	'	'	'
Net income (loss) attributable to Lexington Realty Trust shareholders	'	'	'	'	'	'	'	'	1,630,000	180,316,000	-79,584,000
Series C [Member]	'	'	'	'	'	'	'	'	'	'	'
Equity [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Preferred Stock, Dividend Rate, Per-Dollar-Amount	'	'	'	'	'	'	'	'	$3.25	'	'
Preferred Shares to Common Shares Conversion Ratio	'	'	'	'	'	'	'	'	2.4339	'	'
Series C [Member] | Minimum [Member]	'	'	'	'	'	'	'	'	'	'	'
Equity [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Common Share Closing Price Percent of Conversion Price	'	'	'	'	'	'	'	'	125.00%	'	'
Cumulative Convertible [Member] | Series C [Member]	'	'	'	'	'	'	'	'	'	'	'
Equity [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Preferred Stock, Shares Outstanding	1,935,400	'	'	'	1,935,400	'	'	'	1,935,400	1,935,400	'
Preferred Stock Aggregate Liquidation Preference Value	96,770,000	'	'	'	96,770,000	'	'	'	96,770,000	96,770,000	'
Public Offering And Direct Share Purchase Plan Proceeds [Member]	'	'	'	'	'	'	'	'	'	'	'
Equity [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Proceeds from issuance of common shares	'	'	'	'	'	'	'	'	399,566,000	164,429,000	98,953,000
At The Market [Member]	'	'	'	'	'	'	'	'	'	'	'
Equity [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Common shares issued through public offering and direct share purchase plan during period	'	'	'	'	'	'	'	'	3,409,927	'	'
Stockholders' Equity, Share Issuance Plan, Value Authorized	'	'	'	'	'	'	'	'	100,000,000	'	'
Stock Issued During Period, Value, New Issues	'	'	'	'	'	'	'	'	$36,884,000	'	'

Equity_Stock_Redeemed_and_Reti

Equity Stock Redeemed and Retired (Details) (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
8.05% Series B Cumulative Redeemable Preferred Stock [Member]	'		'		'
Class of Stock [Line Items]	'		'		'
Shares redeemed and retired	0		2,740,874		419,126
Redemption and Repurchase Costs	$0	[1]	$69,459	[1]	$10,217	[1]
Deemed dividend	0	[2]	2,346	[2]	95	[2]
6.50% Series C Cumulative Convertible Preferred Stock [Member]	'		'		'
Class of Stock [Line Items]	'		'		'
Shares redeemed and retired	0		34,800		125,000
Redemption and Repurchase Costs	0		1,462		5,239
Discount (Deemed negative dividend)	0	[2]	-229	[2]	-833	[2]
7.55% Series D Cumulative Redeemable Preferred Stock [Member]	'		'		'
Class of Stock [Line Items]	'		'		'
Shares redeemed and retired	6,200,000		0		0
Redemption and Repurchase Costs	155,621	[1]	0	[1]	0	[1]
Deemed dividend	$5,230	[2]	$0	[2]	$0	[2]
[1]	Includes accrued and unpaid dividends.
[2]	Represents the difference between the redemption/repurchase cost and historical GAAP cost. Accordingly, net income (loss) was adjusted for the deemed dividends/deemed negative dividends to arrive at net income (loss) attributable to common shareholders.

Benefit_Plans_Details

Benefit Plans (Details) (USD $)

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2010

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2010

Dec. 31, 2013

Dec. 31, 2013

Jan. 08, 2010

Dec. 31, 2013

Dec. 31, 2008

Dec. 31, 2009

Dec. 31, 2008

Dec. 31, 2008

Dec. 31, 2008

Dec. 31, 2013

Dec. 31, 2013

Non-vested Shares [Member]

Non-vested Shares [Member]

Non-vested Shares [Member]

Employee Stock Option [Member]

Employee Stock Option [Member]

Employee Stock Option [Member]

Employee Stock Option [Member]

Options 2010 [Member]

Options 2010 [Member]

Options 2009 [Member]

Options 2009 [Member]

Options 2008 [Member]

Options 2008 [Member]

Options 2008 [Member]

Options 2008 [Member]

Options 2008 [Member]

Options 2008 [Member]

Shares Subject to Time [Member]

Shares Subject to Performance [Member]

Share Based Compensation Arrangement By Share Based Payment Award Vesting Rate First Vesting Trigger [Member]

Minimum [Member]

Maximum [Member]

Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value

$4,288,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number

'

'

'

2,521,046

1,465,446

1,179,585

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2,445,906

75,140

Common Share Options Granted (shares)

0

0

0

'

'

'

'

'

'

'

1,248,501

'

'

1,265,500

'

2,000,000

'

'

'

'

'

'

Common Share Options Exercise Price (usd per share)

'

'

'

'

'

'

$6.23

$6.95

$6.44

$6.36

$7.95

'

'

$6.39

'

$5.60

'

'

'

'

'

'

Share Based Compensation Arrangement By Share Based Payment Award Vesting Rate

'

'

'

'

'

'

20.00%

'

'

'

'

'

'

20.00%

'

'

'

50.00%

'

'

'

'

Number Of Trading Period Days Where Entity's Average Closing Price Per Common Share Is Greater Than The Stated Lower Amount Triggering Vesting

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'20 days

'

'

'

'

'

'

Stated Lower Amount Where Entity's Average Closing Price Per Common Share Is Greater Than The Stated Amount Triggering

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$8

$10

'

'

Share Based Compensation Arrangement by Share Based Payment Award Options Convertible To Common Shares

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.13

'

'

'

'

'

Options Converted To Common Shares Exercise Price

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$4.97

'

'

'

'

'

Deferred Compensation Equity

'

'

'

'

'

'

'

'

'

'

'

2,422,000

2,771,000

'

2,480,000

'

'

'

'

'

'

'

Vesting Period

'5 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Recognized Compensation Expense Average Period

'

'

'

'

'

'

'

'

'

'

'

'

'5 years

'

'3 years 7 months 6 days

'

'

'

'

'

'

'

Recognized Compensation Expense

1,037,000

1,197,000

1,384,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unrecognized Compensation Costs

'

'

'

22,426,000

'

'

'

1,518,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant

'

'

'

3,486,552

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition

'

'

'

'4 years 4 months 24 days

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Common Stock Held in Trust

'

427,531

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Initial Vesting Percentage

25.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Vesting Percentage

100.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Defined Contribution Plan, Cost Recognized

298,000

279,000

308,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Allocated Share-based Compensation Expense

7,145,000

3,030,000

2,062,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value

$8,607,000

$1,603,000

$2,100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Benefit_Plans_Assumptions_Used

Benefit Plans Assumptions Used (Details) (USD $)	12 Months Ended
	Dec. 31, 2013
Options 2010 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Weighted-average fair value of options granted (usd per share)	$1.94
Weighted-average risk-free interest rate	2.54%
Weighted-average expected option lives (in years)	'6 years 6 months
Weighted-average expected volatility	49.00%
Weighted-average expected dividend yield	7.40%
Options 2009 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Weighted-average fair value of options granted (usd per share)	$2.19
Weighted-average risk-free interest rate	3.29%
Weighted-average expected option lives (in years)	'6 years 8 months 12 days
Weighted-average expected volatility	59.08%
Weighted-average expected dividend yield	6.26%
Options 2008 [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Weighted-average fair value of options granted (usd per share)	$1.24
Weighted-average risk-free interest rate	1.33%
Weighted-average expected option lives (in years)	'3 years 7 months 6 days
Weighted-average expected volatility	59.94%
Weighted-average expected dividend yield	14.40%

Benefit_Plans_Share_Option_Act

Benefit Plans Share Option Activity (Details) (Share Options [Member], USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share Options [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]	'	'	'
Number of Shares Outstanding, Beginning of Period	3,480,080	3,888,281	4,389,605
Weighted-Average Exercise Price Per Share Outstanding, Beginning of Period	$6.44	$6.36	$6.23
Number of Shares Exercised	-1,519,179	-408,201	-501,324
Weighed-Average Exercise Price Per Share Exercised	$5.77	$5.73	$5.16
Number of Shares Forfeited	-5,200	'	'
Weighed-Average Exercise Price Per Share Forfeited	$7.47	'	'
Number of Shares Outstanding, End of Period	1,955,701	3,480,080	3,888,281
Weighted-Average Exercise Price Per Share Outstanding, End of Period	$6.95	$6.44	$6.36

Benefit_Plans_NonVested_Share_

Benefit Plans Non-Vested Share Activity (Details) (Non-vested Shares [Member], USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Non-vested Shares [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]	'	'
Number of Shares Oustanding, Beginning of Period	1,465,446	1,179,585
Weighted-Average Value Per Share Outstanding, Beginning of Period	$8.64	$8.13
Number of Shares Granted	1,829,400	606,500
Weighted-Average Value Per Share Granted	$10.52	$9.75
Number of Shares Vested	-770,229	-320,639
Weighted-Average Value Per Share Vested	$7.14	$8.86
Number of Shares Forfeited	-3,571	'
Weighted-Average Value Per Share Forfeited	$9.21	'
Number of Shares Oustanding, End of Period	2,521,046	1,465,446
Weighted-Average Value Per Share Outstanding, End of Period	$10.46	$8.64

Related_Party_Transactions_Det

Related Party Transactions (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Related Party Transaction [Line Items]	'	'	'
Rent expense for corporate headquarters	$1,338	$1,029	$1,392
Significant Shareholders [Member]	'	'	'
Related Party Transaction [Line Items]	'	'	'
Rent revenue recognized	744	842	864
Vorando Realty Trust [Member]	'	'	'
Related Party Transaction [Line Items]	'	'	'
Rent expense for corporate headquarters	1,225	919	1,281
Short-term Debt [Member] | NLS Entity [Member]	'	'	'
Related Party Transaction [Line Items]	'	'	'
Interest bearing, non-recourse mortgage notes, related party	'	'	$20,077

Income_Taxes_Details

Income Taxes (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Taxes [Line Items]	'	'	'
Deferred tax assets (liabilities), net	$106,000	$858,000	'
Income tax provision, other	3,445,000	257,000	-1,562,000
Deferred tax liability written off	-150,000	0	3,535,000
Permanent differences	1,936,000	37,000	17,000
Operating loss carryforwards	0	1,635,000	'
State and Local Jurisdiction [Member]	'	'	'
Income Taxes [Line Items]	'	'	'
State Taxes Paid	$1,362,000	$1,042,000	$917,000

Income_Taxes_Components_of_Inc

Income Taxes Components of Income Tax Provision (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current:	'	'	'
Federal	($1,445)	($371)	($440)
State and local	-1,675	-1,156	-1,043
NOL utilized	586	401	566
Deferred:	'	'	'
Federal	-595	141	1,399
State and local	-130	45	400
Benefit (provision) for income taxes	($3,259)	($940)	$882

Income_Taxes_Statutory_Federal

Income Taxes Statutory Federal Income Tax (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]	'	'	'
Federal provision at statutory tax rate (34%)	$164	($573)	($580)
State and local taxes, net of federal benefit	22	-110	-100
Other	-3,445	-257	1,562
Benefit (provision) for income taxes	($3,259)	($940)	$882
Federal statutory income tax rate	34.00%	34.00%	34.00%

Income_Taxes_Summary_of_the_Av

Income Taxes Summary of the Average Taxable Nature of Dividends (Details) (USD $)

12 Months Ended

Dec. 31, 2011

Dec. 31, 2010

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Common [Member]

Common [Member]

Common [Member]

Common [Member]

Common [Member]

Common [Member]

Common [Member]

Common [Member]

Common [Member]

Common [Member]

Common [Member]

Common [Member]

Common [Member]

Common [Member]

Common [Member]

Common [Member]

Common [Member]

Common [Member]

Series B Cumulative Redeemable Preferred Shares [Member]

Series B Cumulative Redeemable Preferred Shares [Member]

Series B Cumulative Redeemable Preferred Shares [Member]

Series B Cumulative Redeemable Preferred Shares [Member]

Series B Cumulative Redeemable Preferred Shares [Member]

Series B Cumulative Redeemable Preferred Shares [Member]

Series B Cumulative Redeemable Preferred Shares [Member]

Series B Cumulative Redeemable Preferred Shares [Member]

Series B Cumulative Redeemable Preferred Shares [Member]

Series B Cumulative Redeemable Preferred Shares [Member]

Series B Cumulative Redeemable Preferred Shares [Member]

Series B Cumulative Redeemable Preferred Shares [Member]

Series B Cumulative Redeemable Preferred Shares [Member]

Series B Cumulative Redeemable Preferred Shares [Member]

Series B Cumulative Redeemable Preferred Shares [Member]

Series C Cumulative Redeemable Preferred Shares [Member]

Series C Cumulative Redeemable Preferred Shares [Member]

Series C Cumulative Redeemable Preferred Shares [Member]

Series C Cumulative Redeemable Preferred Shares [Member]

Series C Cumulative Redeemable Preferred Shares [Member]

Series C Cumulative Redeemable Preferred Shares [Member]

Series C Cumulative Redeemable Preferred Shares [Member]

Series C Cumulative Redeemable Preferred Shares [Member]

Series C Cumulative Redeemable Preferred Shares [Member]

Series C Cumulative Redeemable Preferred Shares [Member]

Series C Cumulative Redeemable Preferred Shares [Member]

Series C Cumulative Redeemable Preferred Shares [Member]

Series C Cumulative Redeemable Preferred Shares [Member]

Series C Cumulative Redeemable Preferred Shares [Member]

Series C Cumulative Redeemable Preferred Shares [Member]

Series C Cumulative Redeemable Preferred Shares [Member]

Series C Cumulative Redeemable Preferred Shares [Member]

Series C Cumulative Redeemable Preferred Shares [Member]

Series D Cumulative Redeemable Preferred Shares [Member]

Series D Cumulative Redeemable Preferred Shares [Member]

Series D Cumulative Redeemable Preferred Shares [Member]

Series D Cumulative Redeemable Preferred Shares [Member]

Series D Cumulative Redeemable Preferred Shares [Member]

Series D Cumulative Redeemable Preferred Shares [Member]

Series D Cumulative Redeemable Preferred Shares [Member]

Series D Cumulative Redeemable Preferred Shares [Member]

Series D Cumulative Redeemable Preferred Shares [Member]

Series D Cumulative Redeemable Preferred Shares [Member]

Series D Cumulative Redeemable Preferred Shares [Member]

Series D Cumulative Redeemable Preferred Shares [Member]

Series D Cumulative Redeemable Preferred Shares [Member]

Series D Cumulative Redeemable Preferred Shares [Member]

Series D Cumulative Redeemable Preferred Shares [Member]

Ordinary Income [Member]

Ordinary Income [Member]

Ordinary Income [Member]

Fifteen Percent Rate, Qualifying Dividend [Member]

Fifteen Percent Rate, Qualifying Dividend [Member]

Fifteen Percent Rate, Qualifying Dividend [Member]

Fifteen Percent Rate Gain [Member]

Fifteen Percent Rate Gain [Member]

Fifteen Percent Rate Gain [Member]

Twenty Five Percent Rate Gain [Member]

Twenty Five Percent Rate Gain [Member]

Twenty Five Percent Rate Gain [Member]

Return of Capital [Member]

Return of Capital [Member]

Return of Capital [Member]

Ordinary Income [Member]

Ordinary Income [Member]

Ordinary Income [Member]

Fifteen Percent Rate, Qualifying Dividend [Member]

Fifteen Percent Rate, Qualifying Dividend [Member]

Fifteen Percent Rate, Qualifying Dividend [Member]

Fifteen Percent Rate Gain [Member]

Fifteen Percent Rate Gain [Member]

Fifteen Percent Rate Gain [Member]

Twenty Five Percent Rate Gain [Member]

Twenty Five Percent Rate Gain [Member]

Twenty Five Percent Rate Gain [Member]

Ordinary Income [Member]

Ordinary Income [Member]

Ordinary Income [Member]

Fifteen Percent Rate, Qualifying Dividend [Member]

Fifteen Percent Rate, Qualifying Dividend [Member]

Fifteen Percent Rate, Qualifying Dividend [Member]

Fifteen Percent Rate Gain [Member]

Fifteen Percent Rate Gain [Member]

Fifteen Percent Rate Gain [Member]

Twenty Five Percent Rate Gain [Member]

Twenty Five Percent Rate Gain [Member]

Twenty Five Percent Rate Gain [Member]

Return of Capital [Member]

Return of Capital [Member]

Return of Capital [Member]

Ordinary Income [Member]

Ordinary Income [Member]

Ordinary Income [Member]

Fifteen Percent Rate, Qualifying Dividend [Member]

Fifteen Percent Rate, Qualifying Dividend [Member]

Fifteen Percent Rate, Qualifying Dividend [Member]

Fifteen Percent Rate Gain [Member]

Fifteen Percent Rate Gain [Member]

Fifteen Percent Rate Gain [Member]

Twenty Five Percent Rate Gain [Member]

Twenty Five Percent Rate Gain [Member]

Twenty Five Percent Rate Gain [Member]

Income Tax Contingency [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Allocation of Dividend Payments

$0.35

$0.12

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total dividends per share, common

'

'

$0.60

$0.53

$0.46

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total dividends per share, preferred

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$0

$1.34

$2.01

'

'

'

'

'

'

'

'

'

'

'

'

$3.25

$3.25

$3.25

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$1.04

$1.89

$1.76

'

'

'

'

'

'

'

'

'

'

'

'

Taxable percentage allocation on dividends

'

'

100.00%

100.00%

100.00%

35.53%

95.68%

47.33%

4.11%

0.99%

1.11%

2.09%

0.00%

0.00%

0.00%

0.00%

0.00%

58.27%

3.33%

51.56%

0.00%

100.00%

100.00%

0.00%

98.98%

97.70%

0.00%

1.02%

2.30%

0.00%

0.00%

0.00%

0.00%

0.00%

0.00%

100.00%

100.00%

100.00%

85.14%

98.98%

97.70%

9.85%

1.02%

2.30%

5.01%

0.00%

0.00%

0.00%

0.00%

0.00%

0.00%

0.00%

0.00%

100.00%

100.00%

100.00%

85.14%

98.98%

97.70%

9.85%

1.02%

2.30%

5.01%

0.00%

0.00%

0.00%

0.00%

0.00%

Commitments_and_Contingencies_

Commitments and Contingencies (Details) (USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified	Guarantee
Commitments and Contingencies [Line Items]	'
Number of Guarantees Outstanding	3
Base Building Improvements [Member]	'
Commitments and Contingencies [Line Items]	'
Obligation for tenant improvements	57
Tenant Improvement Allowance [Member]	'
Commitments and Contingencies [Line Items]	'
Obligation for tenant improvements	234
Payment of the Base Building Improvement, Tenant Improvement Alloance, and Lease Commissions [Member]	'
Commitments and Contingencies [Line Items]	'
Obligation for tenant improvements	2,077

Supplemental_Disclosure_of_Sta1

Supplemental Disclosure of Statement of Cash Flow Information Noncash Acquisitions (Details) (Pemlex LLC [Member], USD $)	1 Months Ended
In Thousands, unless otherwise specified	Oct. 31, 2011
Pemlex LLC [Member]	'
Noncash or Part Noncash Acquisitions [Line Items]	'
Land and building assets	$9,006
Lease intangible assets	6,294
Other assets, net	107
Noncontrolling interest	$574

Supplemental_Disclosure_of_Sta2

Supplemental Disclosure of Statement of Cash Flow Information Other Noncash Transactions (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Other Significant Noncash Transactions [Line Items]	'	'	'
Interest paid	$92,788	$101,262	$103,427
Income taxes paid	4,666	1,018	1,289
Interests Sold [Member]	'	'	'
Other Significant Noncash Transactions [Line Items]	'	'	'
Real estate number of properties sold (in # of properties)	2	'	3
Real estate non-recourse mortgage debt assumed	40,356	8,921	28,648
Seller financing	'	'	3,003
Conveyed Interest [Member]	'	'	'
Other Significant Noncash Transactions [Line Items]	'	'	'
Properties with conveyed interest	4	2	'
Original debt conversion amount	$49,510	$12,409	'

Unaudited_Quarterly_Financial_2

Unaudited Quarterly Financial Data (Details) (USD $)	3 Months Ended																12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2012		Sep. 30, 2012		Jun. 30, 2012		Mar. 31, 2012		Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Quarterly Financial Information Disclosure [Abstract]	'		'		'		'		'		'		'		'		'	'	'
Total gross revenues	$109,606	[1]	$96,950	[1]	$97,763	[1]	$94,121	[1]	$92,059	[1]	$83,800	[1]	$78,961	[1]	$75,360	[1]	$398,440	$330,180	$292,298
Net income (loss)	-7,001		5,155		7,832		-2,123		-1,755		175,289		5,626		5,478		3,863	184,638	-89,778
Net income (loss) attributable to common shareholders	($8,923)		$2,978		($849)		($7,295)		($7,039)		$168,943		($3,392)		($2,187)		$1,630	$180,316	($79,584)
Net income (loss) attributable to common shareholders - basic per share	($0.04)		$0.01		$0		($0.04)		($0.04)		$1.09		($0.02)		($0.01)		($0.07)	$0.99	($0.68)
Net income (loss) attributable to common shareholders - diluted per share	($0.04)		$0.01		$0		($0.04)		($0.04)		$0.96		($0.02)		($0.01)		($0.07)	$0.93	($0.68)
[1]	All periods have been adjusted to reflect the impact of properties sold during the years ended December 31, 2013 and 2012, and properties classified as held for sale, which are reflected in discontinued operations in the Consolidated Statements of Operations.

Subsequent_Events_Details

Subsequent Events (Details) (USD $)	12 Months Ended		1 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2012	Feb. 26, 2014	Feb. 26, 2014	Feb. 26, 2014	Feb. 26, 2014	Feb. 26, 2014
		Subsequent Event [Member]	Rantoul, Illinois [Member]	Parachute, Colorado [Member]	Auburn Hills, Michigan [Member]	Former LCIF II Partners [Member]
			Subsequent Event [Member]	Subsequent Event [Member]	Subsequent Event [Member]	Subsequent Event [Member]
			sqft
Subsequent Event [Line Items]	'	'	'	'	'	'
Square feet	'	'	813,000	'	'	'
Payments to acquire real estate	'	'	$41,100	$13,928	'	'
Lease term	'	'	'	'19 years	'14 years	'
Long-term Debt	'	99,000	'	'	'	'
Fixed LIBOR interest rate due from interest rate swap	'	1.16%	'	'	'	'
Forward commitment to acquire real estate	'	'	'	'	40,025	'
Partners' Capital Account, Units	'	'	'	'	'	170,193
Cash received from OP units	$8,107	'	'	'	'	$1,962

Schedule_III_Real_Estate_and_A1

Schedule III - Real Estate and Accumulated Depreciation and Amortization (Details) (USD $)

Dec. 31, 2013

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Dec. 31, 2010

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Classified as Capital Lease [Member]

Little Rock, AR Office [Member]

Pine Bluff, AR Office [Member]

Pine Bluff, AR Office [Member]

Pine Bluff, AR Office [Member]

Glendale, Az Office [Member]

Glendale, Az Office [Member]

Glendale, Az Office [Member]

Phoenix, Az Office [Member]

Phoenix, Az Office [Member]

Phoenix, Az Office [Member]

Tempe, AZ Office [Member]

Tempe, AZ Office [Member]

Tempe, AZ Office [Member]

Tucson, AZ Office [Member]

Tucson, AZ Office [Member]

Tucson, AZ Office [Member]

Brea, CA Office [Member]

Brea, CA Office [Member]

Brea, CA Office [Member]

Lake Forest, CA Office [Member]

Palo Alto, CA Office [Member]

Centenial, CO Office [Member]

Centenial, CO Office [Member]

Centenial, CO Office [Member]

Colorado Springs, CO Office [Member]

Lakewood, CO Office [Member]

Lakewood, CO Office [Member]

Lakewood, CO Office [Member]

Louisville, CO Office [Member]

Louisville, CO Office [Member]

Louisville, CO Office [Member]

Wallingford, CT Office [Member]

Wallingford, CT Office [Member]

Wallingford, CT Office [Member]

Boca Raton, FL Office [Member]

Fort Meyers, FL Office [Member]

Fort Meyers, FL Office [Member]

Fort Meyers, FL Office [Member]

Lake Mary, FL Office 1 [Member]

Lake Mary, FL Office 1 [Member]

Lake Mary, FL Office 1 [Member]

Lake Mary, FL Office 2 [Member]

Lake Mary, FL Office 2 [Member]

Lake Mary, FL Office 2 [Member]

Orlando, FL Office 1 [Member]

Orlando, FL Office 1 [Member]

Orlando, FL Office 1 [Member]

Orlando, FL Office 2 [Member]

Palm Beach Garden, FL Office [Member]

Palm Beach Garden, FL Office [Member]

Palm Beach Garden, FL Office [Member]

Tampa, FL Office [Member]

Tampa, FL Office [Member]

Tampa, FL Office [Member]

Atlanta, GA Office 1 [Member]

Atlanta, GA Office 2 [Member]

Chamblee, GA Office [Member]

Cumming, GA Office [Member]

Forest Park, GA Office [Member]

Jonesboro, GA Office [Member]

McDonough, GA Office 1 [Member]

McDonough, GA Office 1 [Member]

McDonough, GA Office 1 [Member]

Stone Mountain, GA Office [Member]

Clive, IA Office [Member]

Meridian, ID Office [Member]

Meridian, ID Office [Member]

Meridian, ID Office [Member]

Chicago, IL Office [Member]

Chicago, IL Office [Member]

Chicago, IL Office [Member]

Lisle, IL Office [Member]

Lisle, IL Office [Member]

Lisle, IL Office [Member]

Schaumburg, Il Office [Member]

Schaumburg, Il Office [Member]

Schaumburg, Il Office [Member]

Columbus, IN Office [Member]

Fishers, IN Office [Member]

Fishers, IN Office [Member]

Fishers, IN Office [Member]

Indianapolis, IN Office 1 [Member]

Indianapolis, IN Office 1 [Member]

Indianapolis, IN Office 1 [Member]

Lenexa, KS Office [Member]

Lenexa, KS Office [Member]

Lenexa, KS Office [Member]

Overland Park, KS Office [Member]

Overland Park, KS Office [Member]

Overland Park, KS Office [Member]

Baton Rouge, LA Office [Member]

Baton Rouge, LA Office [Member]

Baton Rouge, LA Office [Member]

Boston, MA Office [Member]

Boston, MA Office [Member]

Boston, MA Office [Member]

Foxboro, MA Office [Member]

Foxboro, MA Office [Member]

Foxboro, MA Office [Member]

Oakland, ME Office [Member]

Oakland, ME Office [Member]

Oakland, ME Office [Member]

Southfield, MI Office [Member]

Southfield, MI Office [Member]

Southfield, MI Office [Member]

Kansas City, MO Office [Member]

Kansas City, MO Office [Member]

Kansas City, MO Office [Member]

Pasagoula, MS Office [Member]

Pasagoula, MS Office [Member]

Pasagoula, MS Office [Member]

Bridgewater, NJ Office [Member]

Bridgewater, NJ Office [Member]

Bridgewater, NJ Office [Member]

Rockaway, NJ Office [Member]

Wall, NJ Office [Member]

Wall, NJ Office [Member]

Wall, NJ Office [Member]

Whippany, NJ Office [Member]

Whippany, NJ Office [Member]

Whippany, NJ Office [Member]

Rochester, NY Office [Member]

Rochester, NY Office [Member]

Rochester, NY Office [Member]

Milford, OH Office [Member]

Milford, OH Office [Member]

Milford, OH Office [Member]

Westerville, OH Office [Member]

Redmond, OR Office [Member]

Redmond, OR Office [Member]

Redmond, OR Office [Member]

Canonsburg, PA Office [Member]

Canonsburg, PA Office [Member]

Canonsburg, PA Office [Member]

Harrisburg, PA Office [Member]

Harrisburg, PA Office [Member]

Harrisburg, PA Office [Member]

Philadelphia, PA Office [Member]

Philadelphia, PA Office [Member]

Philadelphia, PA Office [Member]

Charleston, SC Office [Member]

Rock Hill, SC Office [Member]

Kingsport, TN Office [Member]

Kingsport, TN Office [Member]

Kingsport, TN Office [Member]

Knoxville, TN Office [Member]

Knoxville, TN Office [Member]

Knoxville, TN Office [Member]

Memphis, TN Office 1 [Member]

Memphis, TN Office 1 [Member]

Memphis, TN Office 1 [Member]

Memphis, TN Office 2 [Member]

Memphis, TN Office 2 [Member]

Memphis, TN Office 2 [Member]

Carrollton, TX Office 1 [Member]

Carrollton, TX Office 1 [Member]

Carrollton, TX Office 1 [Member]

Carrollton, TX Office 2 [Member]

Carrollton, TX Office 2 [Member]

Carrollton, TX Office 2 [Member]

Farmers Branch, TX Office [Member]

Garland, TX Office [Member]

Garland, TX Office [Member]

Garland, TX Office [Member]

Houston, TX Office 1 [Member]

Houston, TX Office 1 [Member]

Houston, TX Office 1 [Member]

Houston, TX Office 2 [Member]

Houston, TX Office 2 [Member]

Houston, TX Office 2 [Member]

Houston, TX Office 3 [Member]

Houston, TX Office 3 [Member]

Houston, TX Office 3 [Member]

Houston, TX Office 4 [Member]

Houston, TX Office 4 [Member]

Houston, TX Office 4 [Member]

Irving, TX Office 1 [Member]

Irving, TX Office 1 [Member]

Irving, TX Office 1 [Member]

Irving, Texas Office 2 [Member]

Irving, Texas Office 2 [Member]

Irving, Texas Office 2 [Member]

Mission, TX Office [Member]

Mission, TX Office [Member]

Mission, TX Office [Member]

San Antonio, TX Office [Member]

San Antonio, TX Office [Member]

San Antonio, TX Office [Member]

Temple, TX Office [Member]

Temple, TX Office [Member]

Temple, TX Office [Member]

Westlake, TX Office [Member]

Westlake, TX Office [Member]

Westlake, TX Office [Member]

Glen Allen, VA Office [Member]

Glen Allen, VA Office [Member]

Glen Allen, VA Office [Member]

Hampton, VA Office 1 [Member]

Hampton, VA Office 1 [Member]

Hampton, VA Office 1 [Member]

Herndon, VA Office 1 [Member]

Herndon, VA Office 1 [Member]

Herndon, VA Office 1 [Member]

Herndon, VA Office 2 [Member]

Midlothian, VA Office [Member]

Midlothian, VA Office [Member]

Midlothian, VA Office [Member]

Bremerton, WA Office [Member]

Bremerton, WA Office [Member]

Bremerton, WA Office [Member]

Issaquah, WA Office 1 [Member]

Issaquah, WA Office 1 [Member]

Issaquah, WA Office 1 [Member]

Issaquah, WA Office 2 [Member]

Issaquah, WA Office 2 [Member]

Issaquah, WA Office 2 [Member]

Phoenix, AZ LTL-Office [Member]

Phoenix, AZ LTL-Office [Member]

Phoenix, AZ LTL-Office [Member]

Tempe, AZ LTL-Office [Member]

Tempe, AZ LTL-Office [Member]

Tempe, AZ LTL-Office [Member]

Englewood, CO LTL-Office [Member]

Englewood, CO LTL-Office [Member]

Englewood, CO LTL-Office [Member]

Orlando, FL LTL-Office [Member]

Orlando, FL LTL-Office [Member]

Orlando, FL LTL-Office [Member]

Tampa, Fl LTL - Office 1 [Member]

Tampa, Fl LTL - Office 1 [Member]

Tampa, Fl LTL - Office 1 [Member]

Tampa, Fl LTL - Office 2 [Member]

Tampa, Fl LTL - Office 2 [Member]

Tampa, Fl LTL - Office 2 [Member]

Albany, GA LTL-Specialty [Member]

Albany, GA LTL-Specialty [Member]

Albany, GA LTL-Specialty [Member]

McDonough, GA LTL-Office [Member]

McDonough, GA LTL-Office [Member]

McDonough, GA LTL-Office [Member]

Lenexa, KS LTL-Office [Member]

Lenexa, KS LTL-Office [Member]

Lenexa, KS LTL-Office [Member]

Dry Ridge, KY LTL-Industrial [Member]

Dry Ridge, KY LTL-Industrial [Member]

Dry Ridge, KY LTL-Industrial [Member]

Elizabethtown, KY LTL-Industrial 1 [Member]

Elizabethtown, KY LTL-Industrial 1 [Member]

Elizabethtown, KY LTL-Industrial 1 [Member]

Elizabethtown, KY LTL-Industrial 2 [Member]

Elizabethtown, KY LTL-Industrial 2 [Member]

Elizabethtown, KY LTL-Industrial 2 [Member]

Hopkinsville, KY LTL-Industrial [Member]

Hopkinsville, KY LTL-Industrial [Member]

Hopkinsville, KY LTL-Industrial [Member]

Owensboro, KY LTL-Industrial [Member]

Owensboro, KY LTL-Industrial [Member]

Owensboro, KY LTL-Industrial [Member]

Shreveport, LA LTL-Industrial [Member]

Foxboro, MA LTL-Office [Member]

Foxboro, MA LTL-Office [Member]

Foxboro, MA LTL-Office [Member]

Livonia, MI LTL-Office [Member]

Livonia, MI LTL-Office [Member]

Livonia, MI LTL-Office [Member]

Saint Joseph, MO LTL-Office [Member]

Saint Joseph, MO LTL-Office [Member]

Saint Joseph, MO LTL-Office [Member]

Byhalia, MS LTL-Industrial [Member]

Shelby, NC LTL-Industrial [Member]

Shelby, NC LTL-Industrial [Member]

Shelby, NC LTL-Industrial [Member]

Omaha, NE LTL-Office [Member]

Omaha, NE LTL-Office [Member]

Omaha, NE LTL-Office [Member]

Omaha, NE LTL-Office 2 [Member]

Omaha, NE LTL-Office 2 [Member]

Omaha, NE LTL-Office 2 [Member]

Durham, NH LTL-Industrial [Member]

Las Vegas, NV LTL-Office [Member]

Long Island City, NY LTL - Industrial [Member]

New York, NY LTL - Land [Member]

New York, NY LTL-Land 2 [Member]

New York, NY LTL - Land 3 [Member]

Chillicothe, OH LTL-Industrial [Member]

Chillicothe, OH LTL-Industrial [Member]

Chillicothe, OH LTL-Industrial [Member]

Cincinnati, OH LTL - Industrial [Member]

Cincinnati, OH LTL - Industrial [Member]

Cincinnati, OH LTL - Industrial [Member]

Columbus, OH LTL-Office 1 [Member]

Columbus, OH LTL-Office 2 [Member]

Glenwillow, OH LTL-Industrial [Member]

Eugene, OR LTL - Office [Member]

Eugene, OR LTL - Office [Member]

Eugene, OR LTL - Office [Member]

Bristol, PA LTL-Industrial [Member]

Bristol, PA LTL-Industrial [Member]

Bristol, PA LTL-Industrial [Member]

Jessup, PA LTL - Office [Member]

Jessup, PA LTL - Office [Member]

Jessup, PA LTL - Office [Member]

Chester, SC LTL Industrial [Member]

Chester, SC LTL Industrial [Member]

Chester, SC LTL Industrial [Member]

Florence, SC LTL - Office [Member]

Florence, SC LTL - Office [Member]

Florence, SC LTL - Office [Member]

Fort Mill, SC LTL - Office 1 [Member]

Fort Mill, SC LTL - Office 1 [Member]

Fort Mill, SC LTL - Office 1 [Member]

Fort Mill, SC LTL - Office 2 [Member]

Fort Mill, SC LTL - Office 2 [Member]

Fort Mill, SC LTL - Office 2 [Member]

Knoxville, TN LTL - Office [Member]

Knoxville, TN LTL - Office [Member]

Knoxville, TN LTL - Office [Member]

Allen, TX LTL - Office [Member]

Allen, TX LTL - Office [Member]

Allen, TX LTL - Office [Member]

Arlington, TX LTL - Office [Member]

Arlington, TX LTL - Office [Member]

Arlington, TX LTL - Office [Member]

Houston, TX LTL - Industrial [Member]

Houston, TX LTL - Industrial [Member]

Houston, TX LTL - Industrial [Member]

Houston, TX LTL - Office 1 [Member]

Houston, TX LTL - Office 1 [Member]

Houston, TX LTL - Office 1 [Member]

Houston, TX LTL - Office 2 [Member]

Houston, TX LTL - Office 2 [Member]

Houston, TX LTL - Office 2 [Member]

Missouri City, TX LTL - Land/Infrastructure [Member]

Tomball, TX LTL - Specialty [Member]

Tomball, TX LTL - Specialty [Member]

Tomball, TX LTL - Specialty [Member]

Danville, VA LTL - Land [Member]

Edmonds, WA LTL-Retail [Member]

Eau Claire, WI LTL - Industrial [Member]

Eau Claire, WI LTL - Industrial [Member]

Eau Claire, WI LTL - Industrial [Member]

Huntingon, WV LTL - Office [Member]

Huntingon, WV LTL - Office [Member]

Huntingon, WV LTL - Office [Member]

Moody, AL Industrial [Member]

Moody, AL Industrial [Member]

Moody, AL Industrial [Member]

Jacksonville, FL Industrial [Member]

Jacksonville, FL Industrial [Member]

Jacksonville, FL Industrial [Member]

Orlando, FL Industrial [Member]

Tampa, FL Industrial [Member]

Tampa, FL Industrial [Member]

Tampa, FL Industrial [Member]

Lavonia, GA Industrial [Member]

Lavonia, GA Industrial [Member]

Lavonia, GA Industrial [Member]

McDonough, GA Industrial [Member]

Des Moines, IA Industrial [Member]

Des Moines, IA Industrial [Member]

Des Moines, IA Industrial [Member]

Dubuque, IA Industrial [Member]

Dubuque, IA Industrial [Member]

Dubuque, IA Industrial [Member]

Rockford, IL Industrial 1 [Member]

Rockford, IL Industrial 2 [Member]

Plymouth, IN Industrial [Member]

Plymouth, IN Industrial [Member]

Plymouth, IN Industrial [Member]

Owensboro, KY Industrial [Member]

Shreveport, LA Industrial [Member]

Shreveport, LA Industrial [Member]

Shreveport, LA Industrial [Member]

North Berwick, ME Industrial [Member]

North Berwick, ME Industrial [Member]

North Berwick, ME Industrial [Member]

Kalamazoo, MI Industrial [Member]

Kalamazoo, MI Industrial [Member]

Kalamazoo, MI Industrial [Member]

Marshall, MI Industrial [Member]

Marshall, MI Industrial [Member]

Marshall, MI Industrial [Member]

Marshall, MI Industrial 2 [Member]

Marshall, MI Industrial 2 [Member]

Marshall, MI Industrial 2 [Member]

Plymouth, MI Industrial [Member]

Temperance, MI Industrial [Member]

Temperance, MI Industrial [Member]

Temperance, MI Industrial [Member]

Minneapolis, MN Industrial [Member]

Minneapolis, MN Industrial [Member]

Minneapolis, MN Industrial [Member]

Olive Branch, MS Industrial [Member]

Olive Branch, MS Industrial [Member]

Olive Branch, MS Industrial [Member]

Franklin, NC Industrial [Member]

Franklin, NC Industrial [Member]

Franklin, NC Industrial [Member]

Henderson, NC Industrial [Member]

High Point, NC Industrial [Member]

High Point, NC Industrial [Member]

High Point, NC Industrial [Member]

Lumberton, NC Industrial [Member]

Statesville, NC Industrial [Member]

Statesville, NC Industrial [Member]

Statesville, NC Industrial [Member]

Erwin, NY Industrial [Member]

Erwin, NY Industrial [Member]

Erwin, NY Industrial [Member]

Columbus, OH Industrial [Member]

Hebron, OH Industrial 1 [Member]

Hebron, OH Industrial 2 [Member]

Hebron, OH Industrial 2 [Member]

Hebron, OH Industrial 2 [Member]

Streetsboro, OH Industrial [Member]

Streetsboro, OH Industrial [Member]

Streetsboro, OH Industrial [Member]

Duncan, SC Industrial [Member]

Laurens, SC Industrial [Member]

Laurens, SC Industrial [Member]

Laurens, SC Industrial [Member]

Collierville, TN Industrial [Member]

Collierville, TN Industrial [Member]

Collierville, TN Industrial [Member]

Crossville, TN Industrial [Member]

Crossville, TN Industrial [Member]

Crossville, TN Industrial [Member]

Franklin, TN Industrial [Member]

Franklin, TN Industrial [Member]

Franklin, TN Industrial [Member]

Memphis, TN Industrial 1 [Member]

Memphis, TN Industrial 1 [Member]

Memphis, TN Industrial 1 [Member]

Memphis, TN Industrial 2 [Member]

Millington, TN Industrial [Member]

Millington, TN Industrial [Member]

Millington, TN Industrial [Member]

San Antonio, TX Industrial [Member]

San Antonio, TX Industrial [Member]

San Antonio, TX Industrial [Member]

Waxahachie, TX Industrial [Member]

Waxahachie, TX Industrial [Member]

Waxahachie, TX Industrial [Member]

Winchester, VA Industrial [Member]

Winchester, VA Industrial [Member]

Winchester, VA Industrial [Member]

Phoenix, AZ Multi-tenanted [Member]

Phoenix, AZ Multi-tenanted [Member]

Phoenix, AZ Multi-tenanted [Member]

Los Angeles, CA Multi-tenanted [Member]

Los Angeles, CA Multi-tenanted [Member]

Los Angeles, CA Multi-tenanted [Member]

Palm Beach Gardens, FL Multi-tenanted [Member]

Palm Beach Gardens, FL Multi-tenanted [Member]

Palm Beach Gardens, FL Multi-tenanted [Member]

Honolulu, HI Multi-tenanted [Member]

Honolulu, HI Multi-tenanted [Member]

Honolulu, HI Multi-tenanted [Member]

Baltimore, MD Multi-tenanted [Member]

Baltimore, MD Multi-tenanted [Member]

Baltimore, MD Multi-tenanted [Member]

Bridgeton, MO Multi-tenanted [Member]

Cary, NC Multi-tenanted [Member]

Cary, NC Multi-tenanted [Member]

Cary, NC Multi-tenanted [Member]

Allentown, PA Multi-tenanted [Member]

Allentown, PA Multi-tenanted [Member]

Allentown, PA Multi-tenanted [Member]

Florence, SC Multi-tenanted [Member]

Florence, SC Multi-tenanted [Member]

Florence, SC Multi-tenanted [Member]

Antioch, TN Multi-tenanted [Member]

Antioch, TN Multi-tenanted [Member]

Antioch, TN Multi-tenanted [Member]

Johnson City, TN Multi-tenanted [Member]

Johnson City, TN Multi-tenanted [Member]

Johnson City, TN Multi-tenanted [Member]

Arlington, TX Multi-tenanted [Member]

Arlington, TX Multi-tenanted [Member]

Arlington, TX Multi-tenanted [Member]

Houston, TX Multi-tenanted [Member]

Houston, TX Multi-tenanted [Member]

Houston, TX Multi-tenanted [Member]

Glen Allen, VA Multi-tenanted [Member]

Glen Allen, VA Multi-tenanted [Member]

Glen Allen, VA Multi-tenanted [Member]

Manteca, CA Retail [Member]

Manteca, CA Retail [Member]

Manteca, CA Retail [Member]

San Diego, CA Retail [Member]

San Diego, CA Retail [Member]

San Diego, CA Retail [Member]

Port Richey, FL Retail [Member]

Galesburg, IL Retail [Member]

Galesburg, IL Retail [Member]

Galesburg, IL Retail [Member]

Lawrence, IN Retail [Member]

Billings, MT Retail [Member]

Billings, MT Retail [Member]

Billings, MT Retail [Member]

Jefferson, NC Retail [Member]

Lexington, NC Retail [Member]

Thomasville, NC Retail [Member]

Portchester, NY Retail [Member]

Watertown, NY Retail [Member]

Watertown, NY Retail [Member]

Watertown, NY Retail [Member]

Canton, OH Retail [Member]

Franklin, OH Retail [Member]

Lorain, OH Retail [Member]

Lorain, OH Retail [Member]

Lorain, OH Retail [Member]

Lawton, OK Retail [Member]

Oklahoma City, OK Retail [Member]

Oklahoma City, OK Retail [Member]

Oklahoma City, OK Retail [Member]

Tulsa, OK Retail [Member]

Tulsa, OK Retail [Member]

Tulsa, OK Retail [Member]

Moncks Corner, SC Retail [Member]

Chattanooga, TN Retail [Member]

Paris, TN Retail [Member]

Dallas, TX Retail [Member]

Staunton, VA Retail [Member]

Fairlea, WV Retail [Member]

Fairlea, WV Retail [Member]

Fairlea, WV Retail [Member]

Construction in Progress [Member]

Subtotal [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Cross-collateralized [Member]

Cross-collateralized [Member]

Cross-collateralized [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Cross-collateralized [Member]

Cross-collateralized [Member]

Cross-collateralized [Member]

Cross-collateralized [Member]

Cross-collateralized [Member]

Cross-collateralized [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Cross-collateralized [Member]

Cross-collateralized [Member]

Cross-collateralized [Member]

Cross-collateralized [Member]

Cross-collateralized [Member]

Cross-collateralized [Member]

Cross-collateralized [Member]

Cross-collateralized [Member]

Cross-collateralized [Member]

Minimum [Member]

Maximum [Member]

Cross-collateralized [Member]

Cross-collateralized [Member]

Cross-collateralized [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Cross-collateralized [Member]

Cross-collateralized [Member]

Cross-collateralized [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Cross-collateralized [Member]

Cross-collateralized [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Cross-collateralized [Member]

Cross-collateralized [Member]

Cross-collateralized [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Real Estate and Accumulated Depreciation [Line Items]

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'

Real Estate and Accumulated Depreciation, Amount of Encumbrances

$1,197,489,000

'

'

'

'

$0

$0

'

'

$0

'

'

$0

'

'

$0

'

'

$0

'

'

$0

'

'

$0

$58,256,000

$0

'

'

$10,008,000

$0

'

'

$0

'

'

$0

'

'

$20,101,000

$0

'

'

$0

'

'

$0

'

'

$9,748,000

'

'

$0

$0

'

'

$0

'

'

$0

$0

$0

$0

$0

$0

$0

'

'

$0

$0

$10,156,000

'

'

$29,730,000

'

'

$9,767,000

'

'

$0

'

'

$0

$0

'

'

$11,564,000

'

'

$10,232,000

'

'

$35,297,000

'

'

$0

'

'

$12,764,000

'

'

$0

'

'

$9,259,000

'

'

$0

'

'

$16,831,000

'

'

$0

'

'

$14,292,000

'

'

$14,900,000

$21,847,000

'

'

$14,578,000

'

'

$17,544,000

'

'

$0

'

'

$0

$0

'

'

$9,092,000

'

'

$8,044,000

'

'

$43,989,000

'

'

$7,350,000

$0

$0

'

'

$0

'

'

$3,686,000

'

'

$0

'

'

$12,341,000

'

'

$19,130,000

'

'

$18,435,000

$0

'

'

$0

'

'

$11,620,000

'

'

$14,866,000

'

'

$3,453,000

'

'

$0

'

'

$0

'

'

$5,571,000

'

'

$11,515,000

'

'

$8,253,000

'

'

$0

'

'

$12,222,000

'

'

$0

'

'

$0

'

'

$10,686,000

$9,339,000

'

'

$6,164,000

'

'

$30,714,000

'

'

$0

'

'

$0

'

'

$7,520,000

'

'

$0

'

'

$0

'

'

$0

'

'

$0

'

'

$0

'

'

$11,690,000

'

'

$39,871,000

'

'

$3,393,000

'

'

$13,144,000

'

'

$2,473,000

'

'

$7,684,000

'

'

$2,919,000

'

'

$19,000,000

$0

'

'

$0

'

'

$0

'

'

$15,000,000

$0

'

'

$0

'

'

$7,962,000

'

'

$0

$0

$0

$69,330,000

$80,893,000

$63,277,000

$0

'

'

$0

'

'

$0

$0

$15,865,000

$0

'

'

$0

'

'

$0

'

'

$9,952,000

'

'

$0

'

'

$0

'

'

$0

'

'

$6,867,000

'

'

$0

'

'

$0

'

'

$0

'

'

$0

'

'

$29,706,000

'

'

$0

$9,102,000

'

'

$0

$0

$0

'

'

$6,500,000

'

'

$0

'

'

$0

'

'

$0

$0

'

'

$8,251,000

'

'

$22,782,000

$0

'

'

$9,520,000

'

'

$0

$6,439,000

$6,032,000

'

'

$0

$0

'

'

$7,433,000

'

'

$15,901,000

'

'

$0

'

'

$0

'

'

$0

$0

'

'

$0

'

'

$0

'

'

$320,000

'

'

$0

$0

'

'

$0

$13,158,000

'

'

$8,720,000

'

'

$0

$0

$0

'

'

$18,223,000

'

'

$0

$0

'

'

$0

'

'

$0

'

'

$0

'

'

$0

'

'

$0

$0

'

'

$0

'

'

$0

'

'

$0

'

'

$0

'

'

$10,281,000

'

'

$0

'

'

$0

'

'

$55,000,000

'

'

$0

$0

'

'

$0

'

'

$0

'

'

$0

'

'

$0

'

'

$0

'

'

$0

'

'

$6,473,000

'

'

$856,000

'

'

$546,000

'

'

$0

$480,000

'

'

$0

$0

'

'

$0

$0

$0

$0

$805,000

'

'

$0

$0

$1,212,000

'

'

$0

$0

'

'

$0

'

'

$0

$0

$0

$0

$0

$565,000

'

'

$0

$1,188,489,000

Real Estate and Accumulated Depreciation, Carrying Amount of Land

793,418,000

'

'

'

'

1,353,000

271,000

'

'

9,418,000

'

'

4,666,000

'

'

0

'

'

681,000

'

'

37,269,000

'

'

3,442,000

12,398,000

4,851,000

'

'

2,748,000

1,569,000

'

'

3,657,000

'

'

1,049,000

'

'

4,290,000

795,000

'

'

4,535,000

'

'

4,438,000

'

'

3,538,000

'

'

586,000

4,066,000

'

'

2,018,000

'

'

1,014,000

870,000

770,000

1,558,000

668,000

778,000

693,000

'

'

672,000

1,158,000

2,255,000

'

'

5,155,000

'

'

3,236,000

'

'

5,007,000

'

'

235,000

2,808,000

'

'

1,700,000

'

'

2,828,000

'

'

4,769,000

'

'

1,252,000

'

'

3,814,000

'

'

2,231,000

'

'

551,000

'

'

0

'

'

2,433,000

'

'

618,000

'

'

1,415,000

'

'

4,646,000

8,985,000

'

'

4,063,000

'

'

645,000

'

'

3,124,000

'

'

2,085,000

2,064,000

'

'

1,055,000

'

'

900,000

'

'

13,209,000

'

'

1,189,000

551,000

513,000

'

'

621,000

'

'

464,000

'

'

5,291,000

'

'

1,789,000

'

'

3,427,000

'

'

3,984,000

2,218,000

'

'

1,875,000

'

'

1,500,000

'

'

800,000

'

'

490,000

'

'

7,476,000

'

'

4,889,000

'

'

2,556,000

'

'

2,800,000

'

'

227,000

'

'

2,361,000

'

'

1,543,000

'

'

2,333,000

'

'

5,127,000

'

'

9,409,000

1,100,000

'

'

1,655,000

'

'

5,126,000

'

'

6,268,000

'

'

5,585,000

'

'

0

'

'

2,207,000

'

'

11,498,000

'

'

895,000

'

'

146,000

'

'

1,468,000

'

'

1,443,000

'

'

6,909,000

'

'

560,000

'

'

890,000

'

'

352,000

'

'

631,000

'

'

393,000

'

'

860,000

3,791,000

'

'

935,000

'

'

607,000

'

'

1,006,000

1,421,000

'

'

2,058,000

'

'

2,566,000

'

'

3,464,000

12,099,000

0

73,148,000

86,569,000

65,218,000

735,000

'

'

1,049,000

'

'

1,594,000

432,000

2,228,000

1,541,000

'

'

2,508,000

'

'

2,520,000

'

'

1,629,000

'

'

774,000

'

'

1,798,000

'

'

3,601,000

'

'

1,079,000

'

'

5,591,000

'

'

1,274,000

'

'

15,055,000

'

'

481,000

'

'

16,613,000

'

'

14,555,000

3,174,000

'

'

3,453,000

0

421,000

'

'

1,368,000

'

'

654,000

'

'

573,000

'

'

1,030,000

2,160,000

'

'

171,000

'

'

2,463,000

1,528,000

'

'

2,052,000

'

'

371,000

509,000

254,000

'

'

819,000

1,078,000

'

'

1,383,000

'

'

1,942,000

'

'

143,000

'

'

40,000

'

'

2,296,000

3,040,000

'

'

1,886,000

'

'

198,000

'

'

296,000

'

'

1,488,000

1,330,000

'

'

405,000

891,000

'

'

1,648,000

'

'

1,990,000

1,063,000

1,681,000

'

'

2,441,000

'

'

884,000

5,552,000

'

'

714,000

'

'

545,000

'

'

0

'

'

1,054,000

'

'

1,553,000

723,000

'

'

2,482,000

'

'

652,000

'

'

3,823,000

'

'

1,831,000

'

'

5,110,000

'

'

787,000

'

'

8,259,000

'

'

37,564,000

'

'

1,853,000

5,342,000

'

'

1,052,000

'

'

3,235,000

'

'

3,847,000

'

'

1,214,000

'

'

589,000

'

'

1,875,000

'

'

818,000

'

'

2,082,000

'

'

0

'

'

1,376,000

560,000

'

'

404,000

273,000

'

'

71,000

832,000

208,000

3,841,000

386,000

'

'

884,000

722,000

1,893,000

'

'

663,000

1,782,000

'

'

447,000

'

'

13,000

487,000

247,000

861,000

1,028,000

501,000

'

'

0

793,418,000

Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements

3,014,570,000

'

'

'

'

2,260,000

603,000

'

'

8,260,000

'

'

19,966,000

'

'

12,148,000

'

'

4,037,000

'

'

50,441,000

'

'

13,769,000

16,977,000

15,187,000

'

'

12,554,000

8,857,000

'

'

9,605,000

'

'

4,773,000

'

'

17,160,000

2,941,000

'

'

14,830,000

'

'

15,103,000

'

'

9,046,000

'

'

35,012,000

17,212,000

'

'

7,950,000

'

'

269,000

187,000

186,000

1,368,000

1,242,000

146,000

6,405,000

'

'

276,000

0

7,797,000

'

'

46,180,000

'

'

13,692,000

'

'

21,553,000

'

'

45,729,000

19,360,000

'

'

17,918,000

'

'

6,075,000

'

'

41,956,000

'

'

10,919,000

'

'

16,040,000

'

'

25,653,000

'

'

8,774,000

'

'

12,124,000

'

'

20,154,000

'

'

3,677,000

'

'

6,802,000

'

'

20,428,000

26,961,000

'

'

19,711,000

'

'

26,042,000

'

'

16,140,000

'

'

9,265,000

8,316,000

'

'

10,910,000

'

'

10,676,000

'

'

55,289,000

'

'

8,724,000

4,313,000

403,000

'

'

6,282,000

'

'

4,467,000

'

'

97,032,000

'

'

18,157,000

'

'

22,050,000

'

'

27,308,000

8,473,000

'

'

10,732,000

'

'

14,683,000

'

'

26,962,000

'

'

2,813,000

'

'

43,932,000

'

'

29,701,000

'

'

2,911,000

'

'

15,585,000

'

'

8,181,000

'

'

23,221,000

'

'

19,503,000

'

'

10,683,000

'

'

24,640,000

'

'

12,853,000

12,685,000

'

'

5,445,000

'

'

13,778,000

'

'

16,058,000

'

'

36,099,000

'

'

9,442,000

'

'

27,851,000

'

'

66,673,000

'

'

5,496,000

'

'

559,000

'

'

5,607,000

'

'

11,234,000

'

'

41,615,000

'

'

12,553,000

'

'

26,868,000

'

'

4,862,000

'

'

16,154,000

'

'

11,956,000

'

'

21,840,000

5,405,000

'

'

13,714,000

'

'

14,004,000

'

'

21,483,000

18,862,000

'

'

32,343,000

'

'

8,324,000

'

'

18,094,000

53,164,000

42,624,000

0

0

0

9,021,000

'

'

8,784,000

'

'

10,481,000

2,773,000

24,530,000

13,098,000

'

'

15,863,000

'

'

17,678,000

'

'

8,470,000

'

'

3,629,000

'

'

26,038,000

'

'

15,340,000

'

'

11,072,000

'

'

25,421,000

'

'

13,817,000

'

'

57,949,000

'

'

2,352,000

'

'

58,226,000

'

'

5,895,000

7,405,000

'

'

0

3,947,000

5,590,000

'

'

9,527,000

'

'

9,943,000

'

'

1,592,000

'

'

10,869,000

7,347,000

'

'

7,657,000

'

'

24,291,000

14,247,000

'

'

8,443,000

'

'

2,573,000

5,289,000

7,969,000

'

'

2,439,000

10,134,000

'

'

32,397,000

'

'

14,169,000

'

'

4,302,000

'

'

900,000

'

'

13,398,000

14,924,000

'

'

1,922,000

'

'

10,276,000

'

'

1,320,000

'

'

5,953,000

11,183,000

'

'

12,049,000

16,771,000

'

'

10,810,000

'

'

10,580,000

4,271,000

7,184,000

'

'

25,092,000

'

'

8,626,000

21,177,000

'

'

4,783,000

'

'

6,999,000

'

'

5,673,000

'

'

11,538,000

'

'

12,326,000

19,383,000

'

'

38,535,000

'

'

13,045,000

'

'

12,276,000

'

'

14,892,000

'

'

10,911,000

'

'

2,894,000

'

'

7,350,000

'

'

155,859,000

'

'

4,469,000

15,183,000

'

'

1,503,000

'

'

13,081,000

'

'

10,043,000

'

'

9,748,000

'

'

6,382,000

'

'

10,579,000

'

'

10,330,000

'

'

6,464,000

'

'

13,310,000

'

'

1,664,000

2,366,000

'

'

1,737,000

1,775,000

'

'

884,000

1,429,000

561,000

5,246,000

5,162,000

'

'

3,534,000

999,000

7,024,000

'

'

1,288,000

912,000

'

'

2,432,000

'

'

1,510,000

956,000

547,000

2,362,000

326,000

1,985,000

'

'

0

3,014,570,000

Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements

3,812,294,000

3,564,466,000

3,172,246,000

3,363,586,000

'

3,613,000

874,000

'

'

17,678,000

'

'

24,632,000

'

'

12,148,000

'

'

4,718,000

'

'

87,710,000

'

'

17,211,000

29,375,000

20,038,000

'

'

15,302,000

10,426,000

'

'

13,262,000

'

'

5,822,000

'

'

21,450,000

3,736,000

'

'

19,365,000

'

'

19,541,000

'

'

12,584,000

'

'

35,598,000

21,278,000

'

'

9,968,000

'

'

1,283,000

1,057,000

956,000

2,926,000

1,910,000

924,000

7,098,000

'

'

948,000

1,158,000

10,052,000

'

'

51,335,000

'

'

16,928,000

'

'

26,560,000

'

'

45,964,000

22,168,000

'

'

19,618,000

'

'

8,903,000

'

'

46,725,000

'

'

12,171,000

'

'

19,854,000

'

'

27,884,000

'

'

9,325,000

'

'

12,124,000

'

'

22,587,000

'

'

4,295,000

'

'

8,217,000

'

'

25,074,000

35,946,000

'

'

23,774,000

'

'

26,687,000

'

'

19,264,000

'

'

11,350,000

10,380,000

'

'

11,965,000

'

'

11,576,000

'

'

68,498,000

'

'

9,913,000

4,864,000

916,000

'

'

6,903,000

'

'

4,931,000

'

'

102,323,000

'

'

19,946,000

'

'

25,477,000

'

'

31,292,000

10,691,000

'

'

12,607,000

'

'

16,183,000

'

'

27,762,000

'

'

3,303,000

'

'

51,408,000

'

'

34,590,000

'

'

5,467,000

'

'

18,385,000

'

'

8,408,000

'

'

25,582,000

'

'

21,046,000

'

'

13,016,000

'

'

29,767,000

'

'

22,262,000

13,785,000

'

'

7,100,000

'

'

18,904,000

'

'

22,326,000

'

'

41,684,000

'

'

9,442,000

'

'

30,058,000

'

'

78,171,000

'

'

6,391,000

'

'

705,000

'

'

7,075,000

'

'

12,677,000

'

'

48,524,000

'

'

13,113,000

'

'

27,758,000

'

'

5,214,000

'

'

16,785,000

'

'

12,349,000

'

'

22,700,000

9,196,000

'

'

14,649,000

'

'

14,611,000

'

'

22,489,000

20,283,000

'

'

34,401,000

'

'

10,890,000

'

'

21,558,000

65,263,000

42,624,000

73,148,000

86,569,000

65,218,000

9,756,000

'

'

9,833,000

'

'

12,075,000

3,205,000

26,758,000

14,639,000

'

'

18,371,000

'

'

20,198,000

'

'

10,099,000

'

'

4,403,000

'

'

27,836,000

'

'

18,941,000

'

'

12,151,000

'

'

31,012,000

'

'

15,091,000

'

'

73,004,000

'

'

2,833,000

'

'

74,839,000

'

'

20,450,000

10,579,000

'

'

3,453,000

3,947,000

6,011,000

'

'

10,895,000

'

'

10,597,000

'

'

2,165,000

'

'

11,899,000

9,507,000

'

'

7,828,000

'

'

26,754,000

15,775,000

'

'

10,495,000

'

'

2,944,000

5,798,000

8,223,000

'

'

3,258,000

11,212,000

'

'

33,780,000

'

'

16,111,000

'

'

4,445,000

'

'

940,000

'

'

15,694,000

17,964,000

'

'

3,808,000

'

'

10,474,000

'

'

1,616,000

'

'

7,441,000

12,513,000

'

'

12,454,000

17,662,000

'

'

12,458,000

'

'

12,570,000

5,334,000

8,865,000

'

'

27,533,000

'

'

9,510,000

26,729,000

'

'

5,497,000

'

'

7,544,000

'

'

5,673,000

'

'

12,592,000

'

'

13,879,000

20,106,000

'

'

41,017,000

'

'

13,697,000

'

'

16,099,000

'

'

16,723,000

'

'

16,021,000

'

'

3,681,000

'

'

15,609,000

'

'

193,423,000

'

'

6,322,000

20,525,000

'

'

2,555,000

'

'

16,316,000

'

'

13,890,000

'

'

10,962,000

'

'

6,971,000

'

'

12,454,000

'

'

11,148,000

'

'

8,546,000

'

'

13,310,000

'

'

3,040,000

2,926,000

'

'

2,141,000

2,048,000

'

'

955,000

2,261,000

769,000

9,087,000

5,548,000

'

'

4,418,000

1,721,000

8,917,000

'

'

1,951,000

2,694,000

'

'

2,879,000

'

'

1,523,000

1,443,000

794,000

3,223,000

1,354,000

2,486,000

'

'

4,306,000

3,812,294,000

Real Estate and Accumulated Depreciation, Accumulated Depreciation

775,617,000

738,068,000

638,368,000

601,239,000

'

434,000

93,000

'

'

870,000

'

'

7,659,000

'

'

566,000

'

'

232,000

'

'

14,667,000

'

'

4,059,000

16,931,000

4,691,000

'

'

3,532,000

4,874,000

'

'

2,164,000

'

'

1,292,000

'

'

4,666,000

359,000

'

'

4,302,000

'

'

4,280,000

'

'

4,049,000

'

'

6,359,000

5,467,000

'

'

529,000

'

'

233,000

190,000

191,000

521,000

352,000

167,000

343,000

'

'

172,000

0

535,000

'

'

13,497,000

'

'

3,175,000

'

'

357,000

'

'

8,379,000

4,830,000

'

'

11,325,000

'

'

384,000

'

'

10,188,000

'

'

2,813,000

'

'

2,661,000

'

'

11,753,000

'

'

480,000

'

'

6,695,000

'

'

4,877,000

'

'

307,000

'

'

0

'

'

4,536,000

10,467,000

'

'

5,776,000

'

'

4,929,000

'

'

4,798,000

'

'

2,197,000

478,000

'

'

3,392,000

'

'

7,704,000

'

'

26,401,000

'

'

2,707,000

288,000

61,000

'

'

411,000

'

'

1,313,000

'

'

17,689,000

'

'

7,078,000

'

'

6,231,000

'

'

7,874,000

835,000

'

'

5,481,000

'

'

6,912,000

'

'

14,771,000

'

'

376,000

'

'

13,661,000

'

'

8,465,000

'

'

267,000

'

'

9,218,000

'

'

583,000

'

'

7,288,000

'

'

6,917,000

'

'

3,709,000

'

'

7,818,000

'

'

4,041,000

5,550,000

'

'

366,000

'

'

4,414,000

'

'

4,969,000

'

'

1,083,000

'

'

2,310,000

'

'

780,000

'

'

36,411,000

'

'

14,000

'

'

2,000

'

'

30,000

'

'

597,000

'

'

8,124,000

'

'

3,708,000

'

'

7,937,000

'

'

1,437,000

'

'

5,015,000

'

'

3,992,000

'

'

3,708,000

893,000

'

'

984,000

'

'

588,000

'

'

1,432,000

1,766,000

'

'

0

'

'

2,057,000

'

'

4,198,000

9,511,000

2,357,000

0

0

0

999,000

'

'

1,497,000

'

'

786,000

173,000

4,673,000

459,000

'

'

4,902,000

'

'

991,000

'

'

413,000

'

'

202,000

'

'

12,503,000

'

'

4,066,000

'

'

5,027,000

'

'

3,686,000

'

'

1,040,000

'

'

1,353,000

'

'

8,000

'

'

12,841,000

'

'

1,404,000

375,000

'

'

0

814,000

317,000

'

'

621,000

'

'

5,160,000

'

'

308,000

'

'

2,145,000

5,456,000

'

'

288,000

'

'

4,519,000

781,000

'

'

2,305,000

'

'

529,000

1,015,000

392,000

'

'

704,000

559,000

'

'

5,923,000

'

'

759,000

'

'

630,000

'

'

648,000

'

'

4,160,000

3,304,000

'

'

81,000

'

'

6,260,000

'

'

86,000

'

'

1,805,000

4,696,000

'

'

2,713,000

3,767,000

'

'

543,000

'

'

2,435,000

1,286,000

2,389,000

'

'

5,666,000

'

'

1,486,000

4,768,000

'

'

1,224,000

'

'

2,806,000

'

'

686,000

'

'

11,366,000

'

'

2,653,000

8,305,000

'

'

17,553,000

'

'

9,190,000

'

'

2,765,000

'

'

1,939,000

'

'

5,835,000

'

'

1,156,000

'

'

1,301,000

'

'

40,865,000

'

'

867,000

5,073,000

'

'

179,000

'

'

3,869,000

'

'

995,000

'

'

1,696,000

'

'

480,000

'

'

5,477,000

'

'

3,663,000

'

'

1,318,000

'

'

2,286,000

'

'

532,000

566,000

'

'

313,000

184,000

'

'

179,000

251,000

40,000

237,000

1,115,000

'

'

1,071,000

71,000

1,433,000

'

'

343,000

179,000

'

'

2,198,000

'

'

285,000

67,000

140,000

282,000

82,000

381,000

'

'

0

775,617,000

Real Estate and Accumulated Depreciation, Life Used for Depreciation

'

'

'

'

'

'40 years

'

'3 years

'13 years

'

'7 years

'24 years

'

'6 years

'40 years

'

'10 years

'36 years

'

'7 years

'30 years

'

'10 years

'40 years

'40 years

'40 years

'

'10 years

'40 years

'40 years

'

'2 years

'40 years

'

'8 years

'40 years

'

'8 years

'40 years

'40 years

'

'5 years

'32 years

'

'4 years

'40 years

'

'4 years

'40 years

'

'5 years

'40 years

'40 years

'

'8 years

'40 years

'

'8 years

'27 years

'40 years

'40 years

'40 years

'40 years

'40 years

'40 years

'

'6 years

'40 years

'40 years

'

'

'7 years

'37 years

'

'15 years

'40 years

'

'3 years

'40 years

'

'7 years

'30 years

'40 years

'

'3 years

'40 years

'

'6 years

'40 years

'

'7 years

'37 years

'

'12 years

'40 years

'

'4 years

'40 years

'

'10 years

'40 years

'

'16 years

'40 years

'

'8 years

'40 years

'

'7 years

'40 years

'

'12 years

'40 years

'

'1 year

'31 years

'

'8 years

'40 years

'40 years

'

'22 years

'40 years

'

'20 years

'40 years

'

'8 years

'40 years

'

'5 years

'40 years

'40 years

'

'6 years

'40 years

'

'8 years

'40 years

'

'2 years

'40 years

'

'4 years

'40 years

'40 years

'40 years

'

'5 years

'14 years

'

'1 year

'40 years

'

'20 years

'40 years

'

'13 years

'40 years

'

'19 years

'40 years

'

'8 years

'40 years

'40 years

'

'4 years

'18 years

'

'4 years

'40 years

'

'14 years

'40 years

'

'10 years

'40 years

'

'3 years

'25 years

'

'6 years

'40 years

'

'12 years

'40 years

'

'3 years

'35 years

'

'6 years

'40 years

'

'3 years

'40 years

'

'4 years

'40 years

'

'5 years

'40 years

'

'5 years

'40 years

'

'9 years

'40 years

'40 years

'

'6 years

'40 years

'

'4 years

'40 years

'

'3 years

'40 years

'

'8 years

'40 years

'

'10 years

'40 years

'

'30 years

'40 years

'

'15 years

'40 years

'

'3 years

'25 years

'

'20 years

'38 years

'

'20 years

'35 years

'

'15 years

'40 years

'

'3 years

'38 years

'

'5 years

'40 years

'

'22 years

'40 years

'

'25 years

'40 years

'

'25 years

'40 years

'

'25 years

'40 years

'

'25 years

'40 years

'40 years

'

'2 years

'20 years

'

'2 years

'34 years

'

'15 years

'40 years

'40 years

'

'11 years

'40 years

'

'20 years

'40 years

'

'30 years

'40 years

'40 years

'40 years

'15 years

'

'

'

'

'6 years

'26 years

'

'10 years

'40 years

'40 years

'40 years

'40 years

'

'7 years

'40 years

'

'10 years

'40 years

'

'13 years

'40 years

'

'9 years

'34 years

'

'12 years

'40 years

'

'11 years

'40 years

'

'5 years

'40 years

'

'11 years

'40 years

'

'6 years

'25 years

'

'1 year

'40 years

'

'11 years

'35 years

'

'11 years

'31 years

'

'10 years

'40 years

'7 years

'

'13 years

'40 years

'

'40 years

'

'10 years

'28 years

'

'14 years

'40 years

'

'15 years

'40 years

'

'1 year

'40 years

'40 years

'

'9 years

'40 years

'

'8 years

'40 years

'40 years

'

'5 years

'34 years

'

'11 years

'40 years

'40 years

'40 years

'

'3 years

'34 years

'40 years

'

'8 years

'40 years

'

'10 years

'40 years

'

'8 years

'40 years

'

'4 years

'10 years

'

'12 years

'40 years

'40 years

'

'2 years

'40 years

'

'3 years

'40 years

'

'8 years

'40 years

'

'2 years

'29 years

'40 years

'

'18 years

'40 years

'40 years

'

'3 years

'40 years

'

'4 years

'34 years

'40 years

'40 years

'

'1 year

'40 years

'

'12 years

'40 years

'40 years

'

'2 years

'40 years

'

'9 years

'40 years

'

'17 years

'40 years

'

'1 year

'12 years

'

'8 years

'15 years

'40 years

'

'9 years

'40 years

'

'17 years

'40 years

'

'10 years

'40 years

'

'4 years

'40 years

'

'5 years

'40 years

'

'13 years

'40 years

'

'8 years

'40 years

'

'5 years

'40 years

'

'5 years

'40 years

'40 years

'

'2 years

'40 years

'

'5 years

'18 years

'

'10 years

'40 years

'

'5 years

'40 years

'

'9 years

'40 years

'

'1 year

'40 years

'

'4 years

'40 years

'

'5 years

'40 years

'

'23 years

'40 years

'

'23 years

'40 years

'40 years

'

'12 years

'40 years

'40 years

'

'4 years

'36 years

'40 years

'40 years

'40 years

'40 years

'

'23 years

'40 years

'40 years

'40 years

'

'23 years

'40 years

'40 years

'

'5 years

'13 years

'

'14 years

'24 years

'40 years

'40 years

'40 years

'40 years

'40 years

'

'12 years

'40 years

'

'

Debt instrument amount

'

'

'

'

$9,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Schedule_III_Real_Estate_and_A2

Schedule III - Real Estate and Accumulated Depreciation and Amortization Summary (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Real Estate and Accumulated Depreciation [Line Items]	'	'	'
Total cost basis for federal income tax purposes	$4,600,000,000	'	'
Reconciliation of real estate owned:	'	'	'
Balance at the beginning of year	3,564,466,000	3,172,246,000	3,363,586,000
Additions during year	492,437,000	540,847,000	143,382,000
Properties sold during year	-212,771,000	-138,041,000	-230,397,000
Properties impaired during the year	-31,741,000	-10,553,000	-103,727,000
Other reclassifications	-97,000	-33,000	-598,000
Balance at end of year	3,812,294,000	3,564,466,000	3,172,246,000
Reconciliation of accumulated depreciation and amortization:	'	'	'
Balance at the beginning of year	738,068,000	638,368,000	601,239,000
Depreciation and amortization expense	122,057,000	119,067,000	114,247,000
Accumulated depreciation and amortization of properties sold, impaired and held for sale during year	-84,508,000	-19,367,000	-76,939,000
Other reclassifications	0	0	-179,000
Balance at end of year	$775,617,000	$738,068,000	$638,368,000