LXP Industrial Trust (LXP) 10-Q 7 Nov 13 2013 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2013	Nov. 04, 2013
Document and Entity Information [Abstract]	'	'
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 Common Stock, Shares Outstanding	'	228,353,163
Document Fiscal Year Focus	'2013	'
Document Fiscal Period Focus	'Q3	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period Ended Date	30-Sep-13	'

CONDENSED_CONSOLIDATED_BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Assets:	'	'
Real estate, at cost	$3,597,145	$3,564,466
Real estate - intangible assets	693,890	685,914
Investments in real estate under construction	57,561	65,122
Real estate, gross	4,348,596	4,315,502
Less: accumulated depreciation and amortization	1,240,298	1,150,417
Real estate, net	3,108,298	3,165,085
Cash and cash equivalents	86,182	34,024
Restricted cash	25,182	26,741
Investment in and advances to non-consolidated entities	15,232	27,129
Deferred expenses, net	61,652	57,549
Loans receivable, net	93,228	72,540
Rent receivable – current	7,778	7,355
Rent receivable – deferred	4,388	0
Other assets	50,923	27,780
Total assets	3,452,863	3,418,203
Liabilities:	'	'
Mortgages and notes payable	1,029,838	1,415,961
Credit facility borrowings	67,000	0
Term loans payable	319,000	255,000
Senior notes payable	247,646	0
Convertible notes payable	27,367	78,127
Trust preferred securities	129,120	129,120
Dividends payable	34,531	31,351
Accounts payable and other liabilities	42,102	70,367
Accrued interest payable	11,642	11,980
Deferred revenue - including below market leases, net	70,767	79,908
Prepaid rent	19,111	13,224
Total liabilities	1,998,124	2,085,038
Commitments and contingencies	'	'
Equity:	'	'
Common shares, par value $0.0001 per share; authorized 400,000,000 shares, 216,391,768 and 178,616,664 shares issued and outstanding in 2013 and 2012, respectively	22	18
Additional paid-in-capital	2,587,748	2,212,949
Accumulated distributions in excess of net income	-1,254,048	-1,143,803
Accumulated other comprehensive income (loss)	2,299	-6,224
Total shareholders’ equity	1,430,037	1,306,730
Noncontrolling interests	24,702	26,435
Total equity	1,454,739	1,333,165
Total liabilities and equity	3,452,863	3,418,203
Series C | Cumulative Convertible	'	'
Equity:	'	'
Preferred shares, value	94,016	94,016
Series D | Cumulative Redeemable	'	'
Equity:	'	'
Preferred shares, value	$0	$149,774

CONDENSED_CONSOLIDATED_BALANCE1

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, except Share data, unless otherwise specified
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)	216,391,768	178,616,664
Common Shares, Outstanding (in shares)	216,391,768	178,616,664
Series C | Cumulative Convertible	'	'
Equity:	'	'
Preferred shares, liquidation preference	$96,770	$96,770
Preferred shares, shares issued (in shares)	1,935,400	1,935,400
Preferred shares, shares outstanding (in shares)	1,935,400	1,935,400
Series D | Cumulative Redeemable	'	'
Equity:	'	'
Preferred shares, liquidation preference	$0	$155,000
Preferred shares, shares issued (in shares)	0	6,200,000
Preferred shares, shares outstanding (in shares)	0	6,200,000

CONDENSED_CONSOLIDATED_STATEME

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013		Sep. 30, 2012
Gross revenues:	'	'	'		'
Rental	$90,173	$77,455	$268,215		$220,011
Advisory and incentive fees	98	297	426		1,385
Tenant reimbursements	7,675	7,206	23,425		21,486
Total gross revenues	97,946	84,958	292,066		242,882
Expense applicable to revenues:	'	'	'		'
Depreciation and amortization	-44,523	-39,012	-133,747		-112,980
Property operating	-15,888	-14,595	-47,082		-41,769
General and administrative	-6,358	-5,810	-20,116		-17,368
Non-operating income	2,152	1,356	5,487		5,601
Interest and amortization expense	-22,879	-24,140	-69,585		-71,401
Debt satisfaction gains (charges), net	-2,968	12	-25,397		-1,639
Gain on acquisition	0	167,864	0		167,864
Litigation reserve	0	25	0		-2,775
Impairment charges	0	-4,262	-2,413		-4,262
Income (loss) before provision for income taxes, equity in earnings (losses) of non-consolidated entities and discontinued operations	7,482	166,396	-787		164,153
Provision for income taxes	-2,447	-294	-3,005		-799
Equity in earnings (losses) of non-consolidated entities	-737	3,799	-397		21,469
Income (loss) from continuing operations	4,298	169,901	-4,189		184,823
Discontinued operations:	'	'	'		'
Income (loss) from discontinued operations	311	355	2,646		-2,159
Provision for income taxes	-779	-54	-1,946		-66
Debt satisfaction gains (charges), net	-2	-1,189	8,955		539
Gains on sales of properties	2,129	6,276	14,935		8,946
Impairment charges	-802	0	-9,537		-5,690
Total discontinued operations	857	5,388	15,053		1,570
Net income	5,155	175,289	10,864		186,393
Less net income attributable to noncontrolling interests	-460	-748	-2,057		-3,730
Net income attributable to Lexington Realty Trust shareholders	4,695	174,541	8,807		182,663
Dividends attributable to preferred shares	'	'	'		'
Allocation to participating securities	-144	-1,092	-482		-1,179
Redemption discount – Series C	0	0	0		229
Net income (loss) attributable to common shareholders	2,978	168,950	-5,166		163,574
Income (loss) per common share – basic:	'	'	'		'
Income (loss) from continuing operations	$0.01	$1.05	($0.10)		$1.06
Income from discontinued operations	$0	$0.04	$0.07		$0
Net income (loss) attributable to common shareholders	$0.01	$1.09	($0.03)		$1.06
Weighted-average common shares outstanding – basic	213,649,374	154,980,137	204,923,085		154,564,041
Income (loss) per common share – diluted:	'	'	'		'
Income (loss) from continuing operations	$0.01	$0.93	($0.10)		$0.98
Income (loss) from discontinued operations	$0	$0.03	$0.07		$0
Net income (loss) attributable to common shareholders	$0.01	$0.96	($0.03)		$0.98
Weighted-average common shares outstanding – diluted	214,406,065	180,855,164	204,923,085		180,449,070
Amounts attributable to common shareholders:	'	'	'		'
Income (loss) from continuing operations	2,069	163,481	-19,769		163,552
Income from discontinued operations	909	5,469	14,603		22
Net income (loss) attributable to common shareholders	2,978	168,950	-5,166		163,574
Series B	'	'	'		'
Dividends attributable to preferred shares	'	'	'		'
Dividends attributable to preferred shares	0	0	0		-2,298
Deemed dividend	0	0	0	[1]	-2,346	[1]
Series C	'	'	'		'
Dividends attributable to preferred shares	'	'	'		'
Dividends attributable to preferred shares	-1,573	-1,573	-4,718		-4,718
Redemption discount – Series C	'	'	0	[1]	-229	[1]
Series D	'	'	'		'
Dividends attributable to preferred shares	'	'	'		'
Dividends attributable to preferred shares	0	-2,926	-3,543		-8,777
Deemed dividend	$0	$0	($5,230)	[1]	$0	[1]
[1]	Represents the difference between the redemption/repurchase cost and historical GAAP cost.

CONDENSED_CONSOLIDATED_STATEME1

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Statement of Comprehensive Income [Abstract]	'	'	'	'
Net income	$5,155	$175,289	$10,864	$186,393
Other comprehensive income (loss):	'	'	'	'
Change in unrealized gain (loss) on interest rate swaps, net	-1,613	-2,772	8,523	-8,331
Other comprehensive income (loss)	-1,613	-2,772	8,523	-8,331
Comprehensive income	3,542	172,517	19,387	178,062
Comprehensive income attributable to noncontrolling interests	-460	-748	-2,057	-3,730
Comprehensive income attributable to Lexington Realty Trust shareholders	$3,082	$171,769	$17,330	$174,332

CONDENSED_CONSOLIDATED_STATEME2

CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN EQUITY (Unaudited) (USD $)	Total	Preferred Shares [Member]	Common Shares [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, unless otherwise specified
Beginning Balance at Dec. 31, 2011	$1,170,203	$311,673	$15	$2,010,850	($1,212,630)	$1,938	$58,357
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'	'
Redemption of noncontrolling OP units for common shares	0	0	0	1,099	0	0	-1,099
Repurchase of preferred shares	-70,000	-67,883	0	0	-2,117	0	0
Issuance of common shares and deferred compensation amortization, net	8,910	0	1	8,909	0	0	0
Contributions from noncontrolling interests	1,262	0	0	0	0	0	1,262
Deconsolidation of consolidated joint venture	-782	0	0	0	0	0	-782
Dividends/distributions	-112,500	0	0	0	-78,082	0	-34,418
Net income	186,393	0	0	0	182,663	0	3,730
Other comprehensive income	-8,331	0	0	0	0	-8,331	0
Ending Balance at Sep. 30, 2012	1,175,155	243,790	16	2,020,858	-1,110,166	-6,393	27,050
Beginning Balance at Dec. 31, 2012	1,333,165	243,790	18	2,212,949	-1,143,803	-6,224	26,435
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'	'
Redemption of noncontrolling OP units for common shares	0	0	0	887	0	0	-887
Repurchase of preferred shares	-155,004	-149,774	0	0	-5,230	0	0
Issuance of common shares upon conversion of convertible notes	60,686	0	1	60,685	0	0	0
Issuance of common shares and deferred compensation amortization, net	313,230	0	3	313,227	0	0	0
Acquisition of consolidated joint venture partner's equity interest	-8,918	0	0	0	-8,918	0	0
Dividends/distributions	-107,807	0	0	0	-104,904	0	-2,903
Net income	10,864	0	0	0	8,807	0	2,057
Other comprehensive income	8,523	0	0	0	0	8,523	0
Ending Balance at Sep. 30, 2013	$1,454,739	$94,016	$22	$2,587,748	($1,254,048)	$2,299	$24,702

CONDENSED_CONSOLIDATED_STATEME3

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Statement of Cash Flows [Abstract]	'	'
Net cash provided by operating activities:	$155,084	$120,453
Cash flows from investing activities:	'	'
Acquisition of real estate, including intangible assets	-81,535	-23,000
Investment in real estate under construction	-79,381	-77,931
Capital expenditures	-38,067	-34,693
Net proceeds from sale of properties	69,387	139,876
Acquisition of remaining interest in NLS, net of cash acquired of $8,107	0	-1,331
Principal payments received on loans receivable	1,666	3,206
Investment in loans receivable	-21,121	-8,001
Purchase of noncontrolling interest	-8,918	0
Investments in non-consolidated entities	-5,000	-1,963
Distributions from non-consolidated entities in excess of accumulated earnings	15,460	351
Sale of interest in non-consolidated entity	0	7,000
Increase in deferred leasing costs	-9,957	-8,754
Change in escrow deposits and restricted cash	-8,571	3,892
Real estate deposits	-16,078	-49
Net cash used in investing activities	-182,115	-1,397
Cash flows from financing activities:	'	'
Dividends to common and preferred shareholders	-101,724	-75,399
Repurchase of exchangeable notes	0	-62,150
Conversion of convertible notes	-3,270	0
Principal amortization payments	-28,953	-25,540
Principal payments on debt, excluding normal amortization	-347,122	-214,358
Change in credit facility borrowings, net	67,000	93,000
Proceeds from senior notes	247,565	0
Proceeds from term loans	64,000	215,000
Increase in deferred financing costs	-7,386	-4,683
Proceeds of mortgages and notes payable	40,000	61,500
Cash distributions to noncontrolling interests	-2,903	-34,418
Contributions from noncontrolling interests	0	889
Repurchase of preferred shares	-155,004	-70,000
Issuance of common shares, net	306,986	5,816
Net cash provided by (used in) financing activities	79,189	-110,343
Change in cash and cash equivalents	52,158	8,713
Cash and cash equivalents, at beginning of period	34,024	63,711
Cash and cash equivalents, at end of period	$86,182	$72,424

CONDENSED_CONSOLIDATED_STATEME4

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS PARENTHETICAL (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013
Statement of Cash Flows [Abstract]	'
Net cash acquired from acquisition	$8,107

The_Company_and_Financial_Stat

The Company and Financial Statement Presentation (Notes)	9 Months Ended
	Sep. 30, 2013
The Company and Financial Statement Presentation [Abstract]	'
The Company and Financial Statement Presentation	'
	The Company and Financial Statement Presentation
	Lexington Realty Trust (the “Company”) is a Maryland real estate investment trust (“REIT”) that owns a diversified portfolio of equity and debt investments in single-tenant commercial properties and land. A majority of these properties and all land interests are subject to net or similar leases, where the tenant bears all or substantially all of the costs, including cost increases, for real estate taxes, utilities, insurance and ordinary repairs. The Company also provides investment advisory and asset management services to investors in the single-tenant area.
	As of September 30, 2013, the Company had ownership interests in approximately 215 consolidated real estate properties, located in 41 states. The properties in which the Company has an interest are leased to tenants in various industries, including finance/insurance, technology, service, automotive and energy.
	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 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, which are single purpose entities, (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”), (3) a wholly-owned TRS, or (4) investments in joint ventures. 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 investment 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.
	Basis of Presentation and Consolidation. The Company's unaudited condensed 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 and its partnerships and joint ventures which it controls (1) through voting rights or similar rights or (2) 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.
	The financial statements contained in this Quarterly Report on Form 10-Q for the quarter ended September 30, 2013 (this “Quarterly Report”) have been prepared by the Company in accordance with GAAP for interim financial information and the applicable rules and regulations of the Securities and Exchange Commission (“SEC”). Accordingly, they do not include all information and footnotes required by GAAP for complete financial statements. However, in the opinion of management, the interim financial statements include all adjustments, consisting of normal recurring adjustments, necessary for a fair statement of the results of the periods presented. The results of operations for the three and nine months ended September 30, 2013 and 2012, are not necessarily indicative of the results that may be expected for the full year. These unaudited condensed consolidated financial statements should be read in conjunction with the Company's audited consolidated financial statements and notes thereto included in the Company's Form 10-K for the year ended December 31, 2012 filed with the SEC on February 25, 2013 (“Annual Report”).
	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 unaudited condensed 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, the 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, the 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 Accounting Standards Codification Topic 820, Fair Value Measurements and Disclosures, as amended (“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.
	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 unaudited condensed 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 provides 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.
	Reclassifications. Certain amounts included in the 2012 unaudited condensed consolidated financial statements have been reclassified, primarily relating to discontinued operations, to conform to the 2013 presentation.
	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_Notes

Earnings Per Share (Notes)	9 Months Ended
	Sep. 30, 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 the three and nine months ended September 30, 2013 and 2012:
		Three months ended September 30,					Nine months ended September 30,
		2013		2012			2013			2012
	BASIC
	Income (loss) from continuing operations attributable to common shareholders	$	2,069	$	163,481		$	(19,769	)	$	163,552
	Income from discontinued operations attributable to common shareholders	909		5,469			14,603			22
	Net income (loss) attributable to common shareholders	$	2,978	$	168,950		$	(5,166	)	$	163,574
	Weighted-average number of common shares outstanding	213,649,374		154,980,137			204,923,085			154,564,041
	Income (loss) per common share:
	Income (loss) from continuing operations	$	0.01	$	1.05		$	(0.10	)	$	1.06
	Income from discontinued operations	—		0.04			0.07			—
	Net income (loss) attributable to common shareholders	$	0.01	$	1.09		$	(0.03	)	$	1.06
	DILUTED
	Income (loss) from continuing operations attributable to common shareholders - basic	$	2,069	$	163,481		$	(19,769	)	$	163,552
	Impact of assumed conversions:
	Share options	—		—			—			—
	Operating Partnership Units	—		538			—			1,266
	6.00% Convertible Guaranteed Notes	—		2,327			—			6,980
	Series C Preferred Shares	—		1,573			—			4,489
	Income (loss) from continuing operations attributable to common shareholders	2,069		167,919			(19,769		)	176,287
	Income from discontinued operations attributable to common shareholders - basic	909		5,469			14,603			22
	Impact of assumed conversions:
	Operating Partnership Units	—		(63		)	—			(353		)
	Income (loss) from discontinued operations attributable to common shareholders	909		5,406			14,603			(331		)
	Net income (loss) attributable to common shareholders	$	2,978	$	173,325		$	(5,166	)	$	175,956
	Weighted-average common shares outstanding - basic	213,649,374		154,980,137			204,923,085			154,564,041
	Effect of dilutive securities:
	Share options	756,691		344,721			—			279,699
	Operating Partnership Units	—		4,400,389			—			4,479,451
	6.00% Convertible Guaranteed Notes	—		16,419,347			—			16,412,836
	Series C Preferred Shares	—		4,710,570			—			4,713,043
	Weighted-average common shares outstanding	214,406,065		180,855,164			204,923,085			180,449,070
	Income (loss) per common share:
	Income (loss) from continuing operations	$	0.01	$	0.93		$	(0.10	)	$	0.98
	Income (loss) from discontinued operations	—		0.03			0.07			—
	Net income (loss) attributable to common shareholders	$	0.01	$	0.96		$	(0.03	)	$	0.98
	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 (Notes)	9 Months Ended
	Sep. 30, 2013
Investments in Real Estate and Real Estate Under Construction [Abstract]	'
Investments in Real Estate and Real Estate Under Construction	'
	Investments in Real Estate and Real Estate Under Construction
	The Company, through property owner subsidiaries, completed the following acquisition and build-to-suit transactions during the nine months ended September 30, 2013:
	Property Type	Location	Acquisition/Completion Date	Initial Cost Basis			Lease Expiration	Land and Land Estate			Building and Improvements				Lease in-place Value Intangible
	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	Denver, CO(1)	Apr-13	$	34,547		Apr-28	$	2,207		$	26,724			$	5,616
	Retail	Tuscaloosa, AL(2)	May-13	$	8,397		May-28	$	2,793		$	5,604			$	—
				$	166,468			$	20,055		$	132,401			$	14,012
	-1	The Company incurred additional initial costs of $3,825 which are included in “Other assets” in the accompanying unaudited condensed consolidated balance sheet.
	-2	The Company incurred leasing costs of $323. The property was sold in September 2013.
	The Company recognized aggregate acquisition expenses of $284 and $786 for the nine months ended September 30, 2013 and 2012, respectively, which are included as operating expenses within the Company's unaudited condensed consolidated statements of operations.
	The Company is engaged in various forms of build-to-suit development activities. The Company, through lender subsidiaries and property owner subsidiaries, may enter into the following acquisition, development and construction arrangements: (1) lend funds to construct build-to-suit projects subject to a single-tenant lease and agree to purchase the properties upon completion of construction and commencement of a single-tenant lease, (2) hire developers to construct built-to-suit projects on owned properties leased to single tenants, (3) fund the construction of build-to-suit projects on owned properties pursuant to the terms in single-tenant lease agreements or (4) enter into purchase and sale agreements with developers to acquire single-tenant build-to-suit properties upon completion.
	As of September 30, 2013, the Company had the following development arrangements outstanding:
	Location	Property Type	Square Feet			Expected Maximum Commitment/Contribution ($ millions)				Lease Term (Years)	Estimated Completion Date		Capitalization
													Rate (1)
	Rantoul, IL	Industrial	813,000			$	42.6			20	4Q 13		8	%
	Bingen, WA	Industrial	124,000			$	18.9			12	2Q 14		10.7	%
	Las Vegas, NV	Industrial	180,000			$	29.6			20	3Q 14		7.3	%
	Albany, GA	Retail	46,000			$	7.5			15	4Q 13		9	%
	Richmond, VA	Office	279,000			$	98.6			15	3Q 15		8	%
			1,442,000			$	197.2
	-1	Estimated initial capitalization rate based upon expected maximum commitment/contribution amounts.
	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 September 30, 2013 and December 31, 2012, the Company's aggregate investment in development arrangements was $57,561 and $65,122, respectively, and are presented as investments in real estate under construction in the accompanying unaudited condensed consolidated balance sheets. The Company capitalized interest of $1,597 and $1,693 during the nine months ended September 30, 2013 and 2012, respectively, relating to build-to-suit activities.
	In addition, the Company has committed to acquire, upon its completion, an office property in Omaha, Nebraska for $39,125, which is subject to a net lease that will have a 20-year term upon completion. Construction is expected to be completed in the fourth quarter of 2013. The Company can give no assurances that any of these acquisitions under contract or build-to-suit transactions will be consummated.
	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 that the Company did not already own for a net cash payment of $1,331 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. 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 was consolidated following the acquisition. The Company recognized a $167,864 gain on acquisition in 2012 relating to the acquisition of the remaining common equity interest in NLS.
	The Company recognized gross revenues in continuing operations of $31,755 and a net loss of $(3,339) from NLS properties during the nine months ended September 30, 2013. The Company recognized $12,902 of equity in earnings relating to NLS during the nine months ended September 30, 2012.
	The following unaudited condensed consolidated pro forma information is presented as if the Company acquired the remaining equity in NLS on January 1, 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, 2012, nor does it purport to represent the Company's future operations:
			Three Months Ended September 30, 2012				Nine Months Ended September 30, 2012
	Gross revenues		$	92,035			$	271,258
	Net income (loss) attributable to Lexington Realty Trust shareholders		$	916			$	(5,552	)
	Net loss attributable to common shareholders		$	(3,737	)		$	(23,906	)
	Net loss per common share - basic and diluted		$	(0.02	)		$	(0.15	)

Discontinued_Operations_and_Re

Discontinued Operations and Real Estate Impairment Discontinued Operations and Real Estate Impairment	9 Months Ended
	Sep. 30, 2013
Real Estate and Discontinued Operations [Abstract]	'
Discontinued Operations and Real Estate Impairment	'
	Discontinued Operations and Real Estate Impairment
	During the nine months ended September 30, 2013, the Company disposed of its interests in certain properties to unrelated third parties for an aggregate gross disposition price of $70,989. In addition, the Company conveyed certain properties, along with the respective escrow deposits, in satisfaction of an aggregate $49,509 of non-recourse secured mortgage loans. The Company recognized aggregate net gains on debt satisfaction of $8,955 and an aggregate gain on sales of properties of $14,935 relating to these 2013 dispositions. During the nine months ended September 30, 2012, the Company disposed of its interests in certain properties (excluding Pemlex LLC - see note 7) to unrelated third parties for an aggregate gross disposition price of $129,715 and recognized an aggregate gain on sales of properties of $8,946 and net debt satisfaction charges of $1,189. In addition, the Company conveyed a property in satisfaction of the $7,119 non-recourse secured mortgage loan and recognized a net gain on debt satisfaction of $1,728. As of September 30, 2013, the Company had no properties classified as held for sale.
	The following presents the operating results for the properties sold for the applicable periods:
		Three months ended September 30,				Nine months ended September 30,
		2013		2012		2013		2012
	Total gross revenues	$	287	$	3,695	$	3,518	$	14,168
	Pre-tax income, including gains on sales	$	1,636	$	5,442	$	16,999	$	1,636
	The Company assesses on a regular basis whether there are any indicators that the carrying value of its 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 the nine months ended September 30, 2013 and 2012, the Company recognized $9,537 and $5,690, respectively, of impairment charges in discontinued operations, relating to real estate assets that were disposed of below their carrying value.
	In addition, the Company recognized impairment charges of $2,413 and $4,262 in continuing operations during the nine months ended September 30, 2013 and 2012, respectively. The Company explored the possible disposition of a non-core retail property in 2013 and an underperforming office property in 2012 and determined that the expected undiscounted cash flows based upon a revised estimated holding period of the properties were below the current carrying values. Accordingly, the Company reduced the carrying values of these properties to their estimated fair values.

Loans_Receivable_Notes

Loans Receivable (Notes)	9 Months Ended
	Sep. 30, 2013
Loans Receivable [Abstract]	'
Loans Receivable	'
	Loans Receivable
	As of September 30, 2013 and December 31, 2012, the Company's loans receivable, including accrued interest and net of origination fees and loan loss reserves were comprised primarily of first and second mortgage loans and mezzanine loans on real estate.
	The following is a summary of our loans receivable as of September 30, 2013 and December 31, 2012:
		Loan carrying-value(1)
	Loan		9/30/13		12/31/12		Interest Rate		Maturity Date
	Norwalk, CT(2)		$	23,625	$	3,479	7.5	%	Nov-14
	Homestead, FL(3)		9,851		8,036		7.5	%	Aug-14
	Schaumburg, IL(4)		21,579		21,885		20	%	Jan-12
	Westmont, IL		26,636		26,902		6.45	%	Oct-15
	Southfield, MI		6,804		7,364		4.55	%	Feb-15
	Austin, TX		2,296		2,038		16	%	Oct-18
	Other		2,437		2,836		8	%	2021-2022
			$	93,228	$	72,540
	-1	Loan carrying value includes accrued interest and is net of origination costs 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	Loan is in default. The Company obtained a foreclosure judgment but had not foreclosed as of September 30, 2013 (see note 15). The Company did not record interest income of $2,939 and $2,647 during the nine months ended September 30, 2013 and the year ended December 31, 2012, respectively. The Company believes the office property collateral has an estimated fair value in excess of the Company's investment.
	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 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 September 30, 2013, the financing receivables were performing as anticipated and there were no significant delinquent amounts outstanding, other than the Schaumburg, Illinois loan as disclosed above.

Fair_Value_Measurements_Fair_V

Fair Value Measurements Fair Value Measurements	9 Months Ended
	Sep. 30, 2013
Fair Value Measurements [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 and non-recurring basis as of September 30, 2013 and December 31, 2012, aggregated by the level in the fair value hierarchy within which those measurements fall:
		Balance			Fair Value Measurements Using
	Description	September 30, 2013			(Level 1)		(Level 2)			(Level 3)
	Interest rate swap asset	$	2,299		$	—	$	2,299		$	—
	Impaired real estate assets*	$	4,277		$	—	$	—		$	4,277
	Investment in and advances to non-consolidated entities*	$	683		$	—	$	—		$	683
		Balance			Fair Value Measurements Using
	Description	December 31, 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 September 30, 2013 and December 31, 2012.
		As of September 30, 2013					As of December 31, 2012
		Carrying			Fair Value		Carrying			Fair Value
		Amount					Amount
	Assets
	Loans Receivable	$	93,228		$	82,601	$	72,540		$	61,734
	Liabilities
	Debt	$	1,819,971		$	1,796,706	$	1,878,208		$	1,835,157
	The majority of the inputs used to value the Company's interest rate swaps 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 swaps 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 September 30, 2013 and December 31, 2012, the Company determined that the credit valuation adjustment relative to the overall fair value of the interest rate swaps was not significant. As a result, the interest rate swaps have 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 and/or the estimated value of the underlying collateral using Level 3 inputs consisting of scheduled cash flows and discount rate estimates to approximate those that a willing buyer and seller might use. The fair value of the Company's debt is estimated by using a discounted cash flow analysis using Level 3 inputs, 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 (Notes)	9 Months Ended
	Sep. 30, 2013
Investment in and Advances to Non Consolidated Entities [Abstract]	'
Investment in and Advances to Non-Consolidated Entities	'
	Investment in and Advances to Non-Consolidated Entities
	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.
	In September 2013, the Company recognized a $925 other-than-temporary impairment charge on a non-consolidated office property joint venture due to a change in the Company's estimate of net proceeds upon liquidation of the joint venture.
	During 2012, the Company formed two joint ventures in which it has a minority interest. One joint venture acquired a 120,000 square foot 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 for $13,218 in connection with a restructuring of Pemlex LLC. No gain or loss was recognized in the transaction as the investment was sold at its cost basis. In August 2013, the Company's management agreement with Pemlex LLC was terminated together with all guarantees and obligations to deliver a replacement letter of credit.
	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 the nine months ended September 30, 2012, the Company received aggregate distributions of $885, which were recorded as equity in earnings of non-consolidated entities. During the second quarter of 2012, the Company sold all of its interest in Concord Debt Holding LLC and CDH CDO LLC for $7,000 in cash.

Debt_Notes

Debt (Notes)	9 Months Ended
	Sep. 30, 2013
Debt Disclosure [Abstract]	'
Debt	'
	Debt
	The Company, through property owner subsidiaries, had outstanding non-recourse secured mortgages and notes payable of $1,029,838 and $1,415,961 as of September 30, 2013 and December 31, 2012, respectively. Interest rates, including imputed rates on mortgages and notes payable, ranged from 3.6% to 8.5% at September 30, 2013 and December 31, 2012 and the mortgages and notes payables mature between 2013 and 2027 as of September 30, 2013. The weighted-average interest rate at September 30, 2013 and December 31, 2012 was 5.4% and 5.6%, respectively.
	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 will be recognized as additional interest expense over the term of the Senior Notes. The Senior Notes are rated Baa2 and BBB- by Moody’s Investors Service, Inc. (“Moody’s”) and Standard & Poor’s Rating Services (“S&P”), 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 and S&P, the interest rate under the unsecured revolving credit facility ranges from LIBOR plus 0.95% to 1.725% (1.15% as of September 30, 2013) depending on the Company's unsecured debt rating. In addition, the Company increased its availability under the unsecured revolving credit facility from $300,000 to $400,000. At September 30, 2013, the unsecured revolving credit facility had $67,000 outstanding, outstanding letters of credit of $7,644 and availability of $325,356, subject to covenant compliance.
	In connection with the refinancing discussed above, the Company also procured a five-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 September 30, 2013) depending on the Company’s unsecured debt rating. As of September 30, 2013, the Company entered into an interest-rate swap agreement to fix LIBOR at 0.73% through February 2018 on the $64,000 of outstanding LIBOR-based borrowings.
	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 September 30, 2013) depending on the Company's unsecured 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 LIBOR 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. In February 2013, the Company amended the term loan to release the collateral as security.
	The unsecured revolving credit facility and the unsecured term loans are subject to financial covenants, which the Company was in compliance with at September 30, 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.
	During 2010, the Company issued $115,000 aggregate principal amount of 6.00% Convertible Guaranteed Notes due 2030. 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. The notes have a current conversion rate of 146.2412 common shares per one thousand principal amount of the notes, representing a conversion price of approximately $6.84 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 the nine months ended September 30, 2013, $54,905 aggregate principal amount of the notes were converted for 7,944,673 common shares and aggregate cash payments of $3,270, plus accrued and unpaid interest resulting in aggregate debt satisfaction charges of $13,536.
	On September 30, 2013, the Company obtained the release of all guarantees, other than the Company's operating partnerships, under the indenture for the 6.00% Convertible Guaranteed Notes due 2030, the indenture for the Senior Notes, the term loan agreements and the unsecured revolving credit facility.
	During 2007, the Company issued an aggregate $450,000 of its 5.45% Exchangeable Guaranteed Notes due 2027. The Company prepaid $387,850 of the notes prior to 2012 and the remaining $62,150 of notes were repurchased by the Company and satisfied in January 2012 pursuant to a holder repurchase option. This resulted in debt satisfaction charges of $44.
	Below is a summary of additional disclosures related to the 6.00% Convertible Guaranteed Notes due 2030.
		6.00% Convertible Guaranteed Notes due 2030
	Balance Sheets:	September 30,			December 31,
		2013			2012
	Principal amount of debt component	$	28,991		$	83,896
	Unamortized discount	(1,624		)	(5,769		)
	Carrying amount of debt component	$	27,367		$	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	$	18,621		$	42,579
		Three months ended September 30,						Nine months ended September 30,
	Statements of Operations:	2013			2012			2013		2012
	6.00% Convertible Guaranteed Notes
	Coupon interest	$	473		$	1,725		$	1,871	$	5,175
	Discount amortization	137			484			534		1,453
		$	610		$	2,209		$	2,405	$	6,628
	During the nine months ended September 30, 2013 and 2012, in connection with the satisfaction of mortgage notes other than those disclosed elsewhere in these financial statements, the Company incurred debt satisfaction charges, net of $11,861 and $17, respectively, relating primarily to satisfying non-recourse mortgage debt in 2013 prior to the stated maturity dates.

Derivatives_and_Hedging_Activi

Derivatives and Hedging Activities (Notes)

9 Months Ended

Sep. 30, 2013

Derivatives and Hedging Activities [Abstract]

'

Derivatives 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 did not incur any ineffectiveness during the nine months ended September 30, 2013 and 2012.

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 rate on $319,000 of LIBOR-indexed variable-rate unsecured 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 January 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 term loans. During the next 12 months, the Company estimates that an additional $3,419 will be reclassified as an increase to interest expense.

As of September 30, 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

6

$319,000

The table below presents the fair value of the Company's derivative financial instruments as well as their classification on the unaudited condensed consolidated balance sheets as of September 30, 2013 and December 31, 2012.

As of September 30, 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

$

2,299

Accounts Payable and Other Liabilities

$

(6,556

)

The tables below present the effect of the Company's derivative financial instruments on the unaudited condensed consolidated statements of operations for the nine months ended September 30, 2013 and 2012.

Derivatives in Cash Flow

Amount of Gain (Loss) Recognized

Location of Loss

Amount of Loss Reclassified

in OCI on Derivatives

Reclassified from

from Accumulated OCI into

(Effective Portion)

Accumulated OCI into Income (Effective Portion)

Income (Effective Portion)

September 30,

September 30,

Hedging Relationships

2013

2012

2013

2012

Interest Rate Swaps

$

6,349

$

(8,746

)

Interest expense

$

2,174

$

415

The Company's agreements with 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 September 30, 2013, the Company has not posted any collateral related to the agreements.

Concentration_of_Risk_Notes

Concentration of Risk (Notes)	9 Months Ended
	Sep. 30, 2013
Concentration of Risk [Abstract]	'
Concentration of 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 nine months ended September 30, 2013 and 2012, 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_Notes

Equity (Notes)	9 Months Ended
	Sep. 30, 2013
Equity [Abstract]	'
Equity	'
	Equity
	Shareholders' Equity. During the nine months ended September 30, 2013 and 2012, the Company issued 1,052,159 and 777,882 common shares, respectively, under its direct share purchase plan, which includes its dividend reinvestment plan, raising net proceeds of $11,600 and $6,079, respectively.
	During the nine months ended September 30, 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 the nine months ended September 30, 2013 and generated aggregate gross proceeds of $36,884. In addition, in March 2013, the Company issued 23,000,000 common shares in a public offering raising gross proceeds of $258,336. The net proceeds from these offerings of $293,855 were used to repay borrowings under the Company's unsecured revolving credit facility and the balance for general corporate purposes, including acquisitions.
	The Company issued 1,325,000 non-vested common shares to certain officers with a grant date fair value of $14,098 during the nine months ended September 30, 2013. The non-vested common shares are subject to long-term retention non-vested share agreements and vest from 2018 to 2022 in accordance with the agreements. In addition, the Company issued 37,500 fully vested common shares to the non-management members of the Company's Board of Trustees with a grant date fair value of $399.
	During the nine months ended September 30, 2013 and 2012, the Company repurchased/redeemed and retired the following shares of its preferred stock:
			Nine months ended September 30,
			2013				2012
	8.05% Series B Cumulative Redeemable Preferred Stock:
	Shares redeemed and retired		—				2,740,874
	Redemption cost(1)		$	—			$	69,459
	Deemed dividend(2)		$	—			$	2,346
	6.50% Series C Cumulative Convertible Preferred Stock:
	Shares repurchased and retired		—				34,800
	Repurchase cost		$	—			$	1,462
	Discount (Deemed negative dividend)(2)		$	—			$	(229	)
	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 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 September 30, 2013 and December 31, 2012 represented $2,299 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		6,349
	Amounts of loss reclassified from accumulated other comprehensive loss to interest expense		2,174
	Balance September 30, 2013		$	2,299
	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 the nine months ended September 30, 2013 and 2012, 169,676 and 211,138 common shares, respectively, were issued by the Company, in connection with OP unit redemptions, for an aggregate value of $887 and $1,099, respectively.
	As of September 30, 2013, there were approximately 3,647,000 OP units outstanding other than OP units owned by the Company. 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 Attributable to Shareholders and Transfers from Noncontrolling Interests
		Nine Months ended September 30,
		2013				2012
	Net income attributable to Lexington Realty Trust shareholders	$	8,807			$	182,663
	Transfers from noncontrolling interests:
	Increase in additional paid-in-capital for redemption of noncontrolling OP units	887				1,099
	Change from net income attributable to shareholders and transfers from noncontrolling interests	$	9,694			$	183,762

Related_Party_Transactions_Not

Related Party Transactions (Notes)	9 Months Ended
	Sep. 30, 2013
Related Party Transactions [Abstract]	'
Related Party Transactions	'
	Related Party Transactions
	There were no other related party transactions other than those disclosed elsewhere in this Quarterly Report and the audited consolidated financial statements in the Annual Report.

Commitments_and_Contingencies_

Commitments and Contingencies (Notes)	9 Months Ended
	Sep. 30, 2013
Commitments and Contingencies [Abstract]	'
Commitments and Contingencies	'
	Commitments and Contingencies
	In addition to the commitments and contingencies disclosed elsewhere and previously disclosed, the Company has the following commitments and contingencies.
	The Company is obligated under certain tenant leases 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 September 30, 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 $2,297, (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 $2,114.
	From time to time, the Company is directly and 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.

Supplemental_Disclosure_of_Sta

Supplemental Disclosure of Statement of Cash Flow Information (Notes)	9 Months Ended
	Sep. 30, 2013
Supplemental Disclosure of Statement of Cash Flow Information [Abstract]	'
Supplemental Disclosure of Statement of Cash Flow Information	'
	Supplemental Disclosure of Statement of Cash Flow Information
	In addition to disclosures discussed elsewhere, during the nine months ended September 30, 2013 and 2012, the Company paid $69,097 and $78,042, respectively, for interest and $2,611 and $977, respectively, for income taxes.

Subsequent_Events_Notes

Subsequent Events (Notes)	9 Months Ended
	Sep. 30, 2013
Subsequent Events [Abstract]	'
Subsequent Events	'
	Subsequent Events
	Subsequent to September 30, 2013 and in addition to disclosures elsewhere in the financial statements, the Company:
	•	agreed to lend up to $85,000 for the construction of an approximately 168,000 square foot hospital in Kennewick, Washington. Upon completion of construction, a 30-year lease between the borrower/landowner and the public hospital district will commence, which lease requires the public hospital district to purchase the hospital from the borrower/landowner on May 1, 2022 for $110,000. The financing (1) provides for accrued interest on the outstanding balance at a rate of 6.5% (compounded monthly) until substantial completion, (2) requires regular payments of interest only at an annual rate of 8.75% after substantial completion, (3) accrues interest at 9.0% after substantial completion and (4) matures on May 1, 2022 when an estimated balloon payment of approximately $87,549 is due;
	•	increased its quarterly common share dividend by 10% to $0.165 per common share from $0.15 per common share for the quarter ended December 31, 2013;
	•	acquired a portfolio of three parcels of land in New York, New York consisting of an aggregate of 0.6 acres, which are net leased to tenants under non-cancellable 99-year leases. The aggregate purchase price was $302,000. The improvements on these parcels are owned by the tenants under the Company leases and currently consist of three high-rise hotels built in 2010, which contain an aggregate of approximately 480,000 square feet, 103 floors and 1,179 guest rooms. The hotels are known as the DoubleTree by Hilton Hotel New York City - Financial District, the Sheraton Tribeca New York Hotel and the Element New York Times Square West. The aggregate initial annual rent under the leases is approximately $14,883, which represents approximately 4.9% of the aggregate purchase price. The rent under each lease increases by a minimum of 2.0% each year with further annual increases, not to exceed 3.0% per annum in the aggregate, at specified intervals based on the increase in the Consumer Price Index, or CPI. The total aggregate minimum rent (excluding any additional CPI increases) under the leases over the 99-year lease terms is approximately $4,541,141. Each tenant has a purchase option that can be exercised at the end of the 25th, 50th and 75th lease year at a price that is equal to the greater of (1) the original purchase price plus a 7.5% return (inclusive of rent payments) for the holding period (compounded monthly) and (2) a specified floor price, which in each case is in excess of the allocated purchase price, and is $305,000 in the aggregate;
	•	entered into a nonbinding term sheet with a life insurance company and locked rate for a $213,500 non-recourse secured financing, which is expected to bear interest at a fixed-rate of 4.66% and mature in 13 years. This financing is subject to documentation and certain conditions, including lender due diligence and approval and the Company gives no assurance that it will be consummated or expectations of the final terms;
	•	borrowed $216,000, net, under the unsecured revolving credit facility;
	•	completed a foreclosure and acquired the office building in Schaumburg, Illinois. The Company is obligated to fund an outstanding tenant improvement allowance of approximately $9,000;
	•	issued 11,500,000 common shares raising gross proceeds of $126,270, after deducting underwriting discounts and commissions;
	•	acquired a property in Danville, Virginia for $4,727 (5.5% initial cap rate) which is net leased until January 2029 with 11 five-year tenant renewal options; and
	•	formed a joint venture, in which the Company has a 15% interest, to acquire a portfolio of veterinary hospitals for $39,456 (6.9% initial cap rate), 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.

The_Company_and_Financial_Stat1

The Company and Financial Statement Presentation (Policies)	9 Months Ended
	Sep. 30, 2013
The Company and Financial Statement Presentation [Abstract]	'
Basis of Presentation and Consolidation	'
	Basis of Presentation and Consolidation. The Company's unaudited condensed 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 and its partnerships and joint ventures which it controls (1) through voting rights or similar rights or (2) 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.
	The financial statements contained in this Quarterly Report on Form 10-Q for the quarter ended September 30, 2013 (this “Quarterly Report”) have been prepared by the Company in accordance with GAAP for interim financial information and the applicable rules and regulations of the Securities and Exchange Commission (“SEC”). Accordingly, they do not include all information and footnotes required by GAAP for complete financial statements. However, in the opinion of management, the interim financial statements include all adjustments, consisting of normal recurring adjustments, necessary for a fair statement of the results of the periods presented. The results of operations for the three and nine months ended September 30, 2013 and 2012, are not necessarily indicative of the results that may be expected for the full year. These unaudited condensed consolidated financial statements should be read in conjunction with the Company's audited consolidated financial statements and notes thereto included in the Company's Form 10-K for the year ended December 31, 2012 filed with the SEC on February 25, 2013 (“Annual Report”).
Use of Estimates	'
	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 unaudited condensed 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, the 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, the valuation of derivative financial instruments and the useful lives of long-lived assets. Actual results could differ materially from those estimates.
Fair Value Measurements	'
	Fair Value Measurements. The Company follows the guidance in the Financial Accounting Standards Board Accounting Standards Codification Topic 820, Fair Value Measurements and Disclosures, as amended (“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.
Acquisition, Development and Construction Arrangements	'
	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 unaudited condensed 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 provides 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.
Reclassifications	'
	Reclassifications. Certain amounts included in the 2012 unaudited condensed consolidated financial statements have been reclassified, primarily relating to discontinued operations, to conform to the 2013 presentation.
Recently Issued Accounting Guidance	'
	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)	9 Months Ended
	Sep. 30, 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 the three and nine months ended September 30, 2013 and 2012:
		Three months ended September 30,					Nine months ended September 30,
		2013		2012			2013			2012
	BASIC
	Income (loss) from continuing operations attributable to common shareholders	$	2,069	$	163,481		$	(19,769	)	$	163,552
	Income from discontinued operations attributable to common shareholders	909		5,469			14,603			22
	Net income (loss) attributable to common shareholders	$	2,978	$	168,950		$	(5,166	)	$	163,574
	Weighted-average number of common shares outstanding	213,649,374		154,980,137			204,923,085			154,564,041
	Income (loss) per common share:
	Income (loss) from continuing operations	$	0.01	$	1.05		$	(0.10	)	$	1.06
	Income from discontinued operations	—		0.04			0.07			—
	Net income (loss) attributable to common shareholders	$	0.01	$	1.09		$	(0.03	)	$	1.06
	DILUTED
	Income (loss) from continuing operations attributable to common shareholders - basic	$	2,069	$	163,481		$	(19,769	)	$	163,552
	Impact of assumed conversions:
	Share options	—		—			—			—
	Operating Partnership Units	—		538			—			1,266
	6.00% Convertible Guaranteed Notes	—		2,327			—			6,980
	Series C Preferred Shares	—		1,573			—			4,489
	Income (loss) from continuing operations attributable to common shareholders	2,069		167,919			(19,769		)	176,287
	Income from discontinued operations attributable to common shareholders - basic	909		5,469			14,603			22
	Impact of assumed conversions:
	Operating Partnership Units	—		(63		)	—			(353		)
	Income (loss) from discontinued operations attributable to common shareholders	909		5,406			14,603			(331		)
	Net income (loss) attributable to common shareholders	$	2,978	$	173,325		$	(5,166	)	$	175,956
	Weighted-average common shares outstanding - basic	213,649,374		154,980,137			204,923,085			154,564,041
	Effect of dilutive securities:
	Share options	756,691		344,721			—			279,699
	Operating Partnership Units	—		4,400,389			—			4,479,451
	6.00% Convertible Guaranteed Notes	—		16,419,347			—			16,412,836
	Series C Preferred Shares	—		4,710,570			—			4,713,043
	Weighted-average common shares outstanding	214,406,065		180,855,164			204,923,085			180,449,070
	Income (loss) per common share:
	Income (loss) from continuing operations	$	0.01	$	0.93		$	(0.10	)	$	0.98
	Income (loss) from discontinued operations	—		0.03			0.07			—
	Net income (loss) attributable to common shareholders	$	0.01	$	0.96		$	(0.03	)	$	0.98

Investments_in_Real_Estate_and1

Investments in Real Estate and Real Estate Under Construction (Tables)	9 Months Ended
	Sep. 30, 2013
Investments in Real Estate and Real Estate Under Construction [Abstract]	'
Schedule of Acquired Properties	'
	The Company, through property owner subsidiaries, completed the following acquisition and build-to-suit transactions during the nine months ended September 30, 2013:
	Property Type	Location	Acquisition/Completion Date	Initial Cost Basis			Lease Expiration	Land and Land Estate			Building and Improvements				Lease in-place Value Intangible
	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	Denver, CO(1)	Apr-13	$	34,547		Apr-28	$	2,207		$	26,724			$	5,616
	Retail	Tuscaloosa, AL(2)	May-13	$	8,397		May-28	$	2,793		$	5,604			$	—
				$	166,468			$	20,055		$	132,401			$	14,012
	-1	The Company incurred additional initial costs of $3,825 which are included in “Other assets” in the accompanying unaudited condensed consolidated balance sheet.
	-2	The Company incurred leasing costs of $323.
Schedule of Acquisition Development and Construction Arrangements Outstanding	'
	As of September 30, 2013, the Company had the following development arrangements outstanding:
	Location	Property Type	Square Feet			Expected Maximum Commitment/Contribution ($ millions)				Lease Term (Years)	Estimated Completion Date		Capitalization
													Rate (1)
	Rantoul, IL	Industrial	813,000			$	42.6			20	4Q 13		8	%
	Bingen, WA	Industrial	124,000			$	18.9			12	2Q 14		10.7	%
	Las Vegas, NV	Industrial	180,000			$	29.6			20	3Q 14		7.3	%
	Albany, GA	Retail	46,000			$	7.5			15	4Q 13		9	%
	Richmond, VA	Office	279,000			$	98.6			15	3Q 15		8	%
			1,442,000			$	197.2
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, 2012, nor does it purport to represent the Company's future operations:
			Three Months Ended September 30, 2012				Nine Months Ended September 30, 2012
	Gross revenues		$	92,035			$	271,258
	Net income (loss) attributable to Lexington Realty Trust shareholders		$	916			$	(5,552	)
	Net loss attributable to common shareholders		$	(3,737	)		$	(23,906	)
	Net loss per common share - basic and diluted		$	(0.02	)		$	(0.15	)

Discontinued_Operations_and_Re1

Discontinued Operations and Real Estate Impairment (Tables)	9 Months Ended
	Sep. 30, 2013
Real Estate and Discontinued Operations [Abstract]	'
Operating Results for Properties Sold	'
	The following presents the operating results for the properties sold for the applicable periods:
		Three months ended September 30,				Nine months ended September 30,
		2013		2012		2013		2012
	Total gross revenues	$	287	$	3,695	$	3,518	$	14,168
	Pre-tax income, including gains on sales	$	1,636	$	5,442	$	16,999	$	1,636

Loans_Receivable_Tables

Loans Receivable (Tables)	9 Months Ended
	Sep. 30, 2013
Loans Receivable [Abstract]	'
Summary of Loans Receivable	'
	The following is a summary of our loans receivable as of September 30, 2013 and December 31, 2012:
		Loan carrying-value(1)
	Loan		9/30/13		12/31/12		Interest Rate		Maturity Date
	Norwalk, CT(2)		$	23,625	$	3,479	7.5	%	Nov-14
	Homestead, FL(3)		9,851		8,036		7.5	%	Aug-14
	Schaumburg, IL(4)		21,579		21,885		20	%	Jan-12
	Westmont, IL		26,636		26,902		6.45	%	Oct-15
	Southfield, MI		6,804		7,364		4.55	%	Feb-15
	Austin, TX		2,296		2,038		16	%	Oct-18
	Other		2,437		2,836		8	%	2021-2022
			$	93,228	$	72,540
	-1	Loan carrying value includes accrued interest and is net of origination costs 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	Loan is in default. The Company obtained a foreclosure judgment but had not foreclosed as of September 30, 2013 (see note 15). The Company did not record interest income of $2,939 and $2,647 during the nine months ended September 30, 2013 and the year ended December 31, 2012, respectively. The Company believes the office property collateral has an estimated fair value in excess of the Company's investment.

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2013
Fair Value Measurements [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 and non-recurring basis as of September 30, 2013 and December 31, 2012, aggregated by the level in the fair value hierarchy within which those measurements fall:
		Balance			Fair Value Measurements Using
	Description	September 30, 2013			(Level 1)		(Level 2)			(Level 3)
	Interest rate swap asset	$	2,299		$	—	$	2,299		$	—
	Impaired real estate assets*	$	4,277		$	—	$	—		$	4,277
	Investment in and advances to non-consolidated entities*	$	683		$	—	$	—		$	683
		Balance			Fair Value Measurements Using
	Description	December 31, 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.
Schedule of Carrying Amounts and Fair Value of Financial Instruments	'
	The table below sets forth the carrying amounts and estimated fair values of the Company's financial instruments as of September 30, 2013 and December 31, 2012.
		As of September 30, 2013					As of December 31, 2012
		Carrying			Fair Value		Carrying			Fair Value
		Amount					Amount
	Assets
	Loans Receivable	$	93,228		$	82,601	$	72,540		$	61,734
	Liabilities
	Debt	$	1,819,971		$	1,796,706	$	1,878,208		$	1,835,157

Debt_Tables

Debt (Tables)	9 Months Ended
	Sep. 30, 2013
Debt Disclosure [Abstract]	'
Schedule of Long-term Debt Instruments	'
	Below is a summary of additional disclosures related to the 6.00% Convertible Guaranteed Notes due 2030.
		6.00% Convertible Guaranteed Notes due 2030
	Balance Sheets:	September 30,			December 31,
		2013			2012
	Principal amount of debt component	$	28,991		$	83,896
	Unamortized discount	(1,624		)	(5,769		)
	Carrying amount of debt component	$	27,367		$	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	$	18,621		$	42,579
		Three months ended September 30,						Nine months ended September 30,
	Statements of Operations:	2013			2012			2013		2012
	6.00% Convertible Guaranteed Notes
	Coupon interest	$	473		$	1,725		$	1,871	$	5,175
	Discount amortization	137			484			534		1,453
		$	610		$	2,209		$	2,405	$	6,628

Derivatives_and_Hedging_Activi1

Derivatives and Hedging Activities (Tables)

9 Months Ended

Sep. 30, 2013

Derivatives and Hedging Activities [Abstract]

'

Outstanding Interest Rate Derivatives Designated as Cash Flow Hedges

'

As of September 30, 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

6

$319,000

Fair Value of the Company's Derivative Financial Instruments and Classification on the Balance Sheets

'

The table below presents the fair value of the Company's derivative financial instruments as well as their classification on the unaudited condensed consolidated balance sheets as of September 30, 2013 and December 31, 2012.

As of September 30, 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

$

2,299

Accounts Payable and Other Liabilities

$

(6,556

)

Effect of the Company's Derivative Financial Instruments on the Statements of Operation

'

The tables below present the effect of the Company's derivative financial instruments on the unaudited condensed consolidated statements of operations for the nine months ended September 30, 2013 and 2012.

Derivatives in Cash Flow

Amount of Gain (Loss) Recognized

Location of Loss

Amount of Loss Reclassified

in OCI on Derivatives

Reclassified from

from Accumulated OCI into

(Effective Portion)

Accumulated OCI into Income (Effective Portion)

Income (Effective Portion)

September 30,

September 30,

Hedging Relationships

2013

2012

2013

2012

Interest Rate Swaps

$

6,349

$

(8,746

)

Interest expense

$

2,174

$

415

Equity_Tables

Equity (Tables)	9 Months Ended
	Sep. 30, 2013
Equity [Abstract]	'
Stock Redemptions and Retirements	'
	During the nine months ended September 30, 2013 and 2012, the Company repurchased/redeemed and retired the following shares of its preferred stock:
			Nine months ended September 30,
			2013				2012
	8.05% Series B Cumulative Redeemable Preferred Stock:
	Shares redeemed and retired		—				2,740,874
	Redemption cost(1)		$	—			$	69,459
	Deemed dividend(2)		$	—			$	2,346
	6.50% Series C Cumulative Convertible Preferred Stock:
	Shares repurchased and retired		—				34,800
	Repurchase cost		$	—			$	1,462
	Discount (Deemed negative dividend)(2)		$	—			$	(229	)
	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.
Schedule of Accumulated Other Comprehensive Income (Loss)	'
	Accumulated other comprehensive income (loss) as of September 30, 2013 and December 31, 2012 represented $2,299 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		6,349
	Amounts of loss reclassified from accumulated other comprehensive loss to interest expense		2,174
	Balance September 30, 2013		$	2,299
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 Attributable to Shareholders and Transfers from Noncontrolling Interests
		Nine Months ended September 30,
		2013				2012
	Net income attributable to Lexington Realty Trust shareholders	$	8,807			$	182,663
	Transfers from noncontrolling interests:
	Increase in additional paid-in-capital for redemption of noncontrolling OP units	887				1,099
	Change from net income attributable to shareholders and transfers from noncontrolling interests	$	9,694			$	183,762

The_Company_and_Financial_Stat2

The Company and Financial Statement Presentation (Details)	Sep. 30, 2013
	states
	properties
The Company and Financial Statement Presentation [Abstract]	'
Number of Properties	215
Number of States in which Entity has Interests	41

Earnings_Per_Share_Details

Earnings Per Share (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
BASIC	'	'	'	'
Income (loss) from continuing operations attributable to common shareholders - basic	$2,069	$163,481	($19,769)	$163,552
Income from discontinued operations attributable to common shareholders - basic	909	5,469	14,603	22
Net income (loss) attributable to common shareholders	2,978	168,950	-5,166	163,574
Weighted-average number of common shares outstanding	213,649,374	154,980,137	204,923,085	154,564,041
Income (loss) from continuing operations	$0.01	$1.05	($0.10)	$1.06
Income from discontinued operations	$0	$0.04	$0.07	$0
Net income (loss) attributable to common shareholders	$0.01	$1.09	($0.03)	$1.06
DILUTED	'	'	'	'
Income (loss) from continuing operations attributable to common shareholders - basic	2,069	163,481	-19,769	163,552
Impact of assumed conversions:	'	'	'	'
Share options	0	0	0	0
Operating Partnership Units	0	538	0	1,266
6.00% Convertible Guaranteed Notes	0	2,327	0	6,980
Series C Preferred Shares	0	1,573	0	4,489
Income (loss) from continuing operations attributable to common shareholders	2,069	167,919	-19,769	176,287
Income from discontinued operations attributable to common shareholders - basic	909	5,469	14,603	22
Operating Partnership Units	0	-63	0	-353
Income (loss) from discontinued operations attributable to common shareholders	909	5,406	14,603	-331
Net income (loss) attributable to common shareholders	$2,978	$173,325	($5,166)	$175,956
Effect of dilutive securities:	'	'	'	'
Share options	756,691	344,721	0	279,699
Operating Partnership Units	0	4,400,389	0	4,479,451
6.00% Convertible Guaranteed Notes	0	16,419,347	0	16,412,836
Series C Preferred Shares	0	4,710,570	0	4,713,043
Weighted-average common shares outstanding	214,406,065	180,855,164	204,923,085	180,449,070
Income (loss) per common share:	'	'	'	'
Income (loss) from continuing operations	$0.01	$0.93	($0.10)	$0.98
Income (loss) from discontinued operations	$0	$0.03	$0.07	$0
Net income (loss) attributable to common shareholders	$0.01	$0.96	($0.03)	$0.98

Investments_in_Real_Estate_and2

Investments in Real Estate and Real Estate Under Construction Summary of acquisitions and build-to-suit transactions (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013
Investments in Real Estate and Real Estate Under Construction [Line Items]	'
Initial Cost Basis	$166,468
Land	20,055
Building and Improvements	132,401
Lease in-place Value	14,012
Industrial Property [Member] | Long Island City New York [Member]	'
Investments in Real Estate and Real Estate Under Construction [Line Items]	'
Initial Cost Basis	42,124
Land	0
Building and Improvements	42,124
Lease in-place Value	0
Industrial Property [Member] | Houston, Texas [Member]	'
Investments in Real Estate and Real Estate Under Construction [Line Items]	'
Initial Cost Basis	81,400
Land	15,055
Building and Improvements	57,949
Lease in-place Value	8,396
Office Property [Member] | Denver Colorado [Member]	'
Investments in Real Estate and Real Estate Under Construction [Line Items]	'
Initial Cost Basis	34,547	[1]
Land	2,207	[1]
Building and Improvements	26,724	[1]
Lease in-place Value	5,616	[1]
Business Combination, Additional Consideration Transferred	3,825
Retail Property [Member] | Tuscaloosa Alabama [Member]	'
Investments in Real Estate and Real Estate Under Construction [Line Items]	'
Initial Cost Basis	8,397	[2]
Land	2,793	[2]
Building and Improvements	5,604	[2]
Lease in-place Value	0	[2]
Payments for Leasing Costs	$323
[1]	The Company incurred additional initial costs of $3,825 which are included in “Other assets” in the accompanying unaudited condensed consolidated balance sheet.
[2]	The Company incurred leasing costs of $323. The property was sold in September 2013.

Investments_in_Real_Estate_and3

Investments in Real Estate and Real Estate Under Construction Summary of development arrangements outstanding (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013
	sqft
Investments in Real Estate and Real Estate Under Construction [Line Items]	'
Square Feet	1,442,000
Expected Maximum Commitment/Contribution ($ millions)	$197.20
Rantoul Illinois [Member] | Industrial Property [Member]	'
Investments in Real Estate and Real Estate Under Construction [Line Items]	'
Square Feet	813,000
Expected Maximum Commitment/Contribution ($ millions)	42.6
Lease Term (Years)	'20 years
Capitalization Rate	8.00%	[1]
Bingen, Washington [Member] | Industrial Property [Member]	'
Investments in Real Estate and Real Estate Under Construction [Line Items]	'
Square Feet	124,000
Expected Maximum Commitment/Contribution ($ millions)	18.9
Lease Term (Years)	'12 years
Capitalization Rate	10.70%	[1]
Las Vegas, Nevada [Member] | Industrial Property [Member]	'
Investments in Real Estate and Real Estate Under Construction [Line Items]	'
Square Feet	180,000
Expected Maximum Commitment/Contribution ($ millions)	29.6
Lease Term (Years)	'20 years
Capitalization Rate	7.30%	[1]
Albany, Georgia [Member] | Retail Property [Member]	'
Investments in Real Estate and Real Estate Under Construction [Line Items]	'
Square Feet	46,000
Expected Maximum Commitment/Contribution ($ millions)	7.5
Lease Term (Years)	'15 years
Capitalization Rate	9.00%	[1]
Richmond, Virginia [Member] | Office Property [Member]	'
Investments in Real Estate and Real Estate Under Construction [Line Items]	'
Square Feet	279,000
Expected Maximum Commitment/Contribution ($ millions)	$98.60
Lease Term (Years)	'15 years
Capitalization Rate	8.00%	[1]
[1]	Estimated initial capitalization rate based upon expected maximum commitment/contribution amounts.

Investments_in_Real_Estate_and4

Investments in Real Estate and Real Estate Under Construction Acquisition, Pro Forma (Details) (Net Lease Strategic Assets Fund L P [Member], USD $)	3 Months Ended	9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2012	Sep. 30, 2012
Net Lease Strategic Assets Fund L P [Member]	'	'
Business Acquisition [Line Items]	'	'
Gross revenues	$92,035	$271,258
Net income (loss) attributable to Lexington Realty Trust shareholders	916	-5,552
Net loss attributable to common shareholders	($3,737)	($23,906)
Net loss per common share - basic and diluted	($0.02)	($0.15)

Investments_in_Real_Estate_and5

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

3 Months Ended

9 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

12 Months Ended

9 Months Ended

In Thousands, unless otherwise specified

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Dec. 31, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 01, 2012

Sep. 30, 2013

Sep. 30, 2012

Dec. 31, 2012

Sep. 30, 2013

Sep. 01, 2012

Sep. 01, 2012

sqft

sqft

Development Deals [Member]

Development Deals [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]

Office Property [Member]

Common Shares [Member]

Preferred Shares [Member]

states

states

properties

Omaha, Nebraska Acquistion [Member]

Net Lease Strategic Assets Fund L P [Member]

Net Lease Strategic Assets Fund L P [Member]

properties

properties

states

Omaha, Nebraska [Member]

sqft

Business Acquisition [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Business Combination, Acquisition Related Costs

'

'

$284

$786

'

'

'

'

'

'

'

'

'

'

Development in Process

57,561

'

57,561

'

65,122

'

'

'

'

'

'

'

'

'

Real Estate Investment Capitalized Interest

'

'

'

'

'

1,597

1,693

'

'

'

'

'

'

'

Business acquisition, cash paid

'

'

'

'

'

'

'

1,331

'

'

'

39,125

'

'

Lease Term (Years)

'

'

'

'

'

'

'

'

'

'

'

'20 years

'

'

Business acquisition, equity interest in acquiree prior to combination, percentage

'

'

'

'

'

'

'

'

'

'

'

'

15.00%

100.00%

Number of Properties

215

'

215

'

'

'

'

41

'

'

'

'

'

'

Square Feet

1,442,000

'

1,442,000

'

'

'

'

5,800,000

'

'

'

'

'

'

Number of States in which Entity has Interests

41

'

41

'

'

'

'

23

'

'

'

'

'

'

Tenant-in-common interest, ownership percentage

'

'

'

'

'

'

'

40.00%

'

'

'

'

'

'

Remeasurement gain

'

'

'

'

'

'

'

'

'

'

167,864

'

'

'

Real Estate Revenue, Net

97,946

84,958

292,066

242,882

'

'

'

'

31,755

'

'

'

'

'

Net loss

5,155

175,289

10,864

186,393

'

'

'

'

-3,339

'

'

'

'

'

Equity in earnings

($737)

$3,799

($397)

$21,469

'

'

'

'

'

$12,902

'

'

'

'

Discontinued_Operations_and_Re2

Discontinued Operations and Real Estate Impairment (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Real Estate Properties [Line Items]	'	'	'	'
Debt satisfaction gains (charges), net	($2,968)	$12	($25,397)	($1,639)
Total gross revenues	287	3,695	3,518	14,168
Pre-tax income, including gains on sales	1,636	5,442	16,999	1,636
Discontinued Operation Asset Impairment Charges	802	0	9,537	5,690
Impairment of Real Estate	'	'	2,413	4,262
Sold Properties [Member]	'	'	'	'
Real Estate Properties [Line Items]	'	'	'	'
Aggregate Gross Disposition Price	'	'	70,989	129,715
Debt satisfaction gains (charges), net	'	'	'	1,189
Gains (Losses) on Sales of Investment Real Estate	'	'	14,935	8,946
Transferred Property [Member]	'	'	'	'
Real Estate Properties [Line Items]	'	'	'	'
Transfer of Real Estate	'	'	49,509	7,119
Debt satisfaction gains (charges), net	'	'	$8,955	$1,728

Loans_Receivable_Details

Loans Receivable (Details) (USD $)	9 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013		Dec. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Notes, Loans and Financing Receivable, Net	$93,228		$72,540
Loans and Leases Receivable, Gross, Carrying Amount	93,228	[1]	72,540	[1]
Number Of Types Of Financing Receivable	2		'
Number Of Classes Of Financing Receivable	1		'
Norwalk, Connecticut [Member]	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans and Leases Receivable, Gross, Carrying Amount	23,625	[1],[2]	3,479	[1],[2]
Mortgage Loans on Real Estate, Interest Rate	7.50%	[2]	'
Loans and Leases Receivable, Maximum Contracted Amount of Borrowing	32,600		'
Homestead Florida [Member]	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans and Leases Receivable, Gross, Carrying Amount	9,851	[1],[3]	8,036	[1],[3]
Mortgage Loans on Real Estate, Interest Rate	7.50%	[3]	'
Loans and Leases Receivable, Maximum Contracted Amount of Borrowing	10,660		'
Schaumburg, Illinios [Member]	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans and Leases Receivable, Gross, Carrying Amount	21,579	[1],[4]	21,885	[1],[4]
Mortgage Loans on Real Estate, Interest Rate	20.00%	[4]	'
Loans and Leases Receivable, Impaired, Troubled Debt, Interest Income	2,939		2,647
Westmont, Illinios [Member]	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans and Leases Receivable, Gross, Carrying Amount	26,636	[1]	26,902	[1]
Mortgage Loans on Real Estate, Interest Rate	6.45%		'
Southfield, Michigan [Member]	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans and Leases Receivable, Gross, Carrying Amount	6,804	[1]	7,364	[1]
Mortgage Loans on Real Estate, Interest Rate	4.55%		'
Austin, Texas [Member]	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans and Leases Receivable, Gross, Carrying Amount	2,296	[1]	2,038	[1]
Mortgage Loans on Real Estate, Interest Rate	16.00%		'
Other Loan Locations [Member]	'		'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'		'
Loans and Leases Receivable, Gross, Carrying Amount	$2,437	[1]	$2,836	[1]
Mortgage Loans on Real Estate, Interest Rate	8.00%		'
[1]	Loan carrying value includes accrued interest and is net of origination costs 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]	Loan is in default. The Company obtained a foreclosure judgment but had not foreclosed as of September 30, 2013 (see note 15). The Company did not record interest income of $2,939 and $2,647 during the nine months ended September 30, 2013 and the year ended December 31, 2012, respectively. The Company believes the office property collateral has an estimated fair value in excess of the Company's investment.

Fair_Value_Measurements_Detail

Fair Value Measurements (Details) (USD $)	Sep. 30, 2013		Dec. 31, 2012
In Thousands, unless otherwise specified
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 asset	$2,299		'
Investments, Fair Value Disclosure	683	[1]	'
Interest rate swap liability	'		-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 asset	0		'
Investments, Fair Value Disclosure	0	[1]	'
Interest rate swap liability	'		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 asset	2,299		'
Investments, Fair Value Disclosure	0	[1]	'
Interest rate swap liability	'		-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 asset	0		'
Investments, Fair Value Disclosure	683	[1]	'
Interest rate swap liability	'		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	4,277	[1]	3,327	[1]
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	[1]	0	[1]
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	[1]	0	[1]
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	$4,277	[1]	$3,327	[1]
[1]	Represents a non-recurring fair value measurement.

Fair_Value_Measurements_Detail1

Fair Value Measurements (Details 2) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Carrying Amount [Member]	'	'
Assets	'	'
Loans Receivable	$93,228	$72,540
Liabilities	'	'
Debt	1,819,971	1,878,208
Fair Value [Member]	'	'
Assets	'	'
Loans Receivable	82,601	61,734
Liabilities	'	'
Debt	$1,796,706	$1,835,157

Investment_in_and_Advances_to_1

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

1 Months Ended

9 Months Ended

12 Months Ended

1 Months Ended

3 Months Ended

9 Months Ended

1 Months Ended

12 Months Ended

12 Months Ended

Jul. 31, 2012

Sep. 30, 2013

Sep. 30, 2012

Dec. 31, 2012

Sep. 30, 2013

Jun. 30, 2012

Sep. 30, 2013

Aug. 31, 2013

Jul. 31, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Dec. 31, 2012

sqft

Partnerships

Joint Venture [Member]

Concord and CDH CDO [Member]

Concord and CDH CDO [Member]

MARYLAND

Long Island City New York [Member]

Palm Beach Garden, FL Office [Member]

Palm Beach Garden, FL Office [Member]

Palm Beach Garden, FL Office [Member]

Humble Texas [Member]

Nonrecourse Mortgage [Member]

Joint Venture [Member]

Joint Venture [Member]

Joint Venture [Member]

Joint Venture [Member]

Joint Venture [Member]

Joint Venture [Member]

Humble Texas [Member]

sqft

Joint Venture [Member]

Investments in and Advances to Affiliates [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Investment in joint venture

'

$5,000,000

$1,963,000

'

'

'

'

$5,000,000

$8,918,000

'

$29,750,000

'

'

'

Lease Term (Years)

'

'

'

'

'

'

'

'99 years

'

'

'15 years

'

'17 years

'

Other than temporary impairment on joint venture

'

'

'

'

925,000

'

'

'

'

'

'

'

'

'

Equity Method Investment, Number of Joint Venture Formed During Period

'

'

'

2

'

'

'

'

'

'

'

'

'

'

Square Feet

'

1,442,000

'

'

'

'

'

'

'

'

120,000

'

'

'

Equity Method Investment, Ownership Percentage

'

'

'

'

'

'

'

'

'

'

36.00%

25.00%

15.00%

'

Advances to Affiliate

'

'

'

'

'

'

'

'

'

'

12,000,000

'

'

'

Distributions Payable to Real Estate Partnerships

'

'

'

'

'

'

'

'

'

2,557,000

'

'

'

'

Economic Interest in Joint Venture

'

'

'

100.00%

'

'

'

'

'

'

'

'

'

'

Property Purchase Price

'

'

'

'

'

'

'

'

'

'

'

'

27,750,000

'

Debt Instrument, Face Amount

'

'

'

'

'

'

'

'

'

'

'

'

'

15,260,000

Debt Instrument, Interest Rate, Stated Percentage

'

'

'

'

'

'

'

'

'

'

'

'

'

4.70%

Proceeds from Divestiture of Interest in Consolidated Subsidiaries

13,218,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Distributions from joint venture

'

'

'

'

'

'

885,000

'

'

'

'

'

'

'

Equity Method Investment Sold, Carrying Amount

'

'

'

'

'

$7,000,000

'

'

'

'

'

'

'

'

Debt_Details

Debt (Details) (USD $)

9 Months Ended

132 Months Ended

1 Months Ended

1 Months Ended

9 Months Ended

132 Months Ended

9 Months Ended

0 Months Ended

0 Months Ended

9 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

12 Months Ended

Sep. 30, 2013

Dec. 31, 2020

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Jan. 31, 2012

Dec. 31, 2011

Dec. 31, 2007

Jan. 31, 2012

Jan. 31, 2012

Sep. 30, 2013

Dec. 31, 2020

Dec. 31, 2012

Dec. 31, 2010

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Dec. 31, 2012

Feb. 12, 2013

Feb. 12, 2013

Sep. 30, 2013

Dec. 31, 2012

Feb. 12, 2013

Feb. 12, 2013

Jun. 30, 2013

Feb. 12, 2013

Sep. 30, 2013

Sep. 30, 2013

Feb. 12, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Feb. 12, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Dec. 31, 2012

Dec. 31, 2012

Sep. 30, 2013

Sep. 30, 2013

Line of Credit [Member]

Secured Term Loan [Member]

Five Percent Exchangeable Guaranteed Note [Member]

Five Percent Exchangeable Guaranteed Note [Member]

Five Percent Exchangeable Guaranteed Note [Member]

Secured Term Loan 1 [Member]

Secured Term Loan 2 [Member]

6% Convertible Guaranteed Note [Member]

6% Convertible Guaranteed Note [Member]

6% Convertible Guaranteed Note [Member]

6% Convertible Guaranteed Note [Member]

Other Debt Obligations [Member]

Other Debt Obligations [Member]

Minimum [Member]

Minimum [Member]

Minimum [Member]

Minimum [Member]

Maximum [Member]

Maximum [Member]

Maximum [Member]

Maximum [Member]

Senior Notes Due 2023 [Member]

Secured Revolving Credit Facility, Expiring January 2015 [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]

Unsecured Revolving Credit Facility, Expiring January 2019 [Member]

Unsecured Revolving Credit Facility, Expiring January 2019 [Member]

Unsecured Revolving Credit Facility, Expiring January 2019 [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]

Convertible Debt [Member]

Condition One [Member]

Condition Four [Member]

Interest Rate Contract [Member]

Interest Rate Swap [Member]

Unsecured Revolving Credit Facility [Member]

Unsecured Term Loan [Member]

Unsecured Revolving Credit Facility [Member]

Unsecured Term Loan [Member]

Senior Notes [Member]

Secured Revolving Credit Facility [Member]

Unsecured Revolving Credit Facility [Member]

Unsecured Revolving Credit Facility [Member]

Minimum [Member]

Maximum [Member]

Secured Term Loan [Member]

Minimum [Member]

Maximum [Member]

Unsecured Term Loan [Member]

Minimum [Member]

Maximum [Member]

Secured Term Loan [Member]

Secured Term Loan [Member]

Secured Term Loan [Member]

Secured Term Loan [Member]

Debt Instrument [Line Items]

'

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'

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'

'

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Mortgages and notes payable

$1,029,838,000

'

$1,415,961,000

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'

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'

'

'

'

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Effective interest rate

'

'

'

'

'

'

'

'

'

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8.10%

'

8.10%

'

'

'

3.60%

8.50%

'

'

8.50%

3.60%

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'

'

'

'

'

'

'

'

'

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'

'

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'

'

'

'

'

'

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Debt, Weighted Average Interest Rate

5.40%

'

5.60%

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'

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Debt Instrument, Face Amount

'

'

'

'

255,000,000

'

'

450,000,000

25,000,000

35,551,000

28,991,000

'

83,896,000

115,000,000

'

'

'

'

'

'

'

'

'

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250,000,000

300,000,000

'

400,000,000

300,000,000

'

'

'

'

'

'

250,000,000

'

'

'

'

'

'

'

Gains (Losses) on Extinguishment of Debt From Continuing Operations

'

'

'

'

'

44,000

'

'

'

1,578,000

'

'

'

'

'

'

'

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Debt Instrument, Interest Rate, Stated Percentage

'

'

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5.45%

'

'

'

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6.00%

'

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4.25%

'

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Debt Instrument, Percentage of Issuance Price

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99.03%

'

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Debt Instrument, Unamortized Discount (Premium), Net

'

'

'

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'

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'

'

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1,624,000

'

5,769,000

'

'

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2,435,000

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Debt Instrument, Basis Spread on Variable Rate

'

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1.50%

1.45%

'

'

2.05%

2.00%

'

'

'

'

'

0.95%

1.73%

'

1.50%

2.25%

'

'

1.10%

2.10%

'

2.00%

2.85%

'

'

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

'

'

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'

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'

'

'

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1.15%

'

'

'

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1.75%

'

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1.35%

'

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'

'

'

'

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Derivative, Average Variable Interest Rate

'

'

'

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'

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1.42%

Line of Credit Facility, Amount Outstanding

'

'

'

67,000,000

'

'

'

'

'

'

'

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'

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Letters of Credit Outstanding, Amount

'

'

'

7,644,000

'

'

'

'

'

'

'

'

'

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'

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'

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'

'

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'

Line of Credit Facility, Remaining Borrowing Capacity

'

'

'

325,356,000

'

'

'

'

'

'

'

'

'

'

'

'

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Debt Instrument, Term

'

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'5 years

'

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Derivative, Fixed Interest Rate

'

'

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0.73%

'

Long-term Debt, Gross

'

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64,000,000

'

Debt Instrument, Maturity Date

'

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'

31-Jan-30

'

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Percent Of Notes Required To Be Repurchased At The Option Of The Holders On Set Dates

'

100.00%

'

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Debt Instrument, Convertible, Conversion Ratio

'

'

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146.2412

'

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Debt Instrument, Convertible, Conversion Price (dollars per share)

'

'

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$6.84

'

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Amount of debt converted

'

'

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'

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'

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'

54,905,000

'

'

'

'

Debt Conversion, Converted Instrument, Shares Issued

7,944,673

'

'

'

'

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'

'

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'

'

'

'

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'

'

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'

'

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'

'

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'

Convertible debt cash payments

3,270,000

'

'

'

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'

'

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Debt Satisfaction Charges

13,536,000

'

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Debt Instrument, Prepaid Amount

'

'

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387,850,000

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Debt Instrument, Repurchased and Satisfied Amount

'

'

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'

62,150,000

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'

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Extinguishment of Debt, Gain (Loss), Net of Tax

'

'

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$11,861,000

$17,000

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Debt_Additional_disclosures_re

Debt Additional disclosures related to the 6.00% Convertible Guaranteed Notes due 2030 (Details) (6% Convertible Guaranteed Note [Member], USD $)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012	Dec. 31, 2010
6% Convertible Guaranteed Note [Member]	'	'	'	'	'	'
Debt Instrument [Line Items]	'	'	'	'	'	'
Principal amount of debt component	$28,991,000	'	$28,991,000	'	$83,896,000	$115,000,000
Unamortized discount	-1,624,000	'	-1,624,000	'	-5,769,000	'
Carrying amount of debt component	27,367,000	'	27,367,000	'	78,127,000	'
Carrying amount of equity component	-26,032,000	'	-26,032,000	'	3,654,000	'
Effective interest rate	8.10%	'	8.10%	'	8.10%	'
Aggregate if-converted value in excess of aggregate principal amount	'	'	18,621,000	'	42,579,000	'
Coupon interest	473,000	1,725,000	1,871,000	5,175,000	'	'
Discount amortization	137,000	484,000	534,000	1,453,000	'	'
Interest Expense	$610,000	$2,209,000	$2,405,000	$6,628,000	'	'

Derivatives_and_Hedging_Activi2

Derivatives and Hedging Activities (Details) (USD $)	9 Months Ended	1 Months Ended				9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Jan. 31, 2012	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 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]
			Interest Rate Swap [Member]	Interest Rate Swap [Member]	Cash Flow Hedging [Member]	Cash Flow Hedging [Member]	Cash Flow Hedging [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]
					Financial_Instrument	Interest Expense [Member]	Interest Expense [Member]
Derivative [Line Items]	'	'	'	'	'	'	'
Derivative, Notional Amount	'	'	'	'	$319,000	'	'
Derivative Instrument, Settlement Amount	'	3,539	'	'	'	'	'
Amount of Loss Reclassified from Accumulated OCI into Income (Effective Portion)	'	1,837	'	'	'	2,174	415
Expected Amount Of Derivative Related Interest To Be Reclassified To Interest Expense Over The Next 12 Months	3,419	'	'	'	'	'	'
Derivative, Number of Instruments Held	'	'	'	'	6	'	'
Derivative Asset	'	'	2,299	'	'	'	'
Derivative Liabilities	'	'	'	-6,556	'	'	'
Amount of Loss Recognized in OCI on Derivatives (Effective Portion)	'	'	'	'	'	$6,349	($8,746)

Concentration_of_Risk_Details

Concentration of Risk (Details)	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
	tenants	tenants
Concentration Risk [Line Items]	'	'
Number of tenants representing more than 10% of rental revenue	0	0
Maximum [Member] | Tenant Concentration Risk [Member]	'	'
Concentration Risk [Line Items]	'	'
Concentration Risk, Percentage	10.00%	10.00%

Equity_Details

Equity (Details) (USD $)	1 Months Ended	3 Months Ended		9 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2013	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Equity [Line Items]	'	'	'	'	'
Common shares issued during period	23,000,000	'	'	'	'
Proceeds from issuance of common shares	'	'	'	$306,986	$5,816
Proceeds from Issuance of Common Stock, Gross	258,336	'	'	'	'
Proceeds from Issuance of Common Stock, Net of Issuance Costs	293,855	'	'	'	'
OP Unit Equivalent in Common Shares	'	'	'	1.13	'
Partners Capital Account, Shares Issued For Units Redeemed	'	'	'	169,676	211,138
OP Units Outstanding	'	3,647,000	'	3,647,000	'
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	'
Gains and Losses on Cash Flow Hedges, Ending	'	2,299	'	2,299	'
Transfers from noncontrolling interests:	'	'	'	'	'
Net income (loss) attributable to Lexington Realty Trust shareholders	'	4,695	174,541	8,807	182,663
Increase in additional paid-in-capital for redemption of noncontrolling OP units	'	'	'	887	1,099
Change from net income (loss) attributable to shareholders and transfers from noncontrolling interest	'	'	'	9,694	183,762
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]	'	'	'	'	'
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	'
Other comprehensive income before reclassifications	'	'	'	6,349	'
Amounts of loss reclassified from accumulated other comprehensive loss to interest expense	'	'	'	2,174	'
Gains and Losses on Cash Flow Hedges, Ending	'	2,299	'	2,299	'
Accumulated Distributions in Excess of Net Income [Member]	'	'	'	'	'
Transfers from noncontrolling interests:	'	'	'	'	'
Net income (loss) attributable to Lexington Realty Trust shareholders	'	'	'	8,807	182,663
Direct Share Purchase Plan [Member]	'	'	'	'	'
Equity [Line Items]	'	'	'	'	'
Common shares issued during period	'	'	'	1,052,159	777,882
Proceeds from issuance of common shares	'	'	'	11,600	6,079
At The Market [Member]	'	'	'	'	'
Equity [Line Items]	'	'	'	'	'
Common shares issued during period	'	'	'	3,409,927	'
Stockholders' Equity, Share Issuance Plan, Value Authorized	'	'	'	100,000	'
Stock Issued During Period, Value, New Issues	'	'	'	36,884	'
Officers [Member]	'	'	'	'	'
Equity [Line Items]	'	'	'	'	'
Deferred compensation arrangement with individual, shares issued	'	'	'	1,325,000	'
Deferred compensation arrangement with individual, fair value of shares issued	'	'	'	14,098	'
Trustees [Member]	'	'	'	'	'
Equity [Line Items]	'	'	'	'	'
Deferred compensation arrangement with individual, shares issued	'	'	'	37,500	'
Deferred compensation arrangement with individual, fair value of shares issued	'	'	'	$399	'

Equity_Stock_Redeemed_and_Reti

Equity Stock Redeemed and Retired (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013		Sep. 30, 2012
Class of Stock [Line Items]	'	'	'		'
Discount (Deemed negative dividend)	$0	$0	$0		$229
8.05% Series B Cumulative Redeemable Preferred Stock [Member]	'	'	'		'
Class of Stock [Line Items]	'	'	'		'
Shares redeemed and retired	'	'	0		2,740,874
Redemption and Repurchase Costs	'	'	0	[1]	69,459	[1]
Deemed dividend	0	0	0	[2]	2,346	[2]
6.50% Series C Cumulative Convertible Preferred Stock [Member]	'	'	'		'
Class of Stock [Line Items]	'	'	'		'
Redemption and Repurchase Costs	'	'	0		1,462
Shares repurchased and retired	'	'	0		34,800
Discount (Deemed negative dividend)	'	'	0	[2]	-229	[2]
7.55% Series D Cumulative Redeemable Preferred Stock [Member]	'	'	'		'
Class of Stock [Line Items]	'	'	'		'
Shares redeemed and retired	'	'	6,200,000		0
Redemption and Repurchase Costs	'	'	155,621	[1]	0	[1]
Deemed dividend	$0	$0	$5,230	[2]	$0	[2]
[1]	Includes accrued and unpaid dividends.
[2]	Represents the difference between the redemption/repurchase cost and historical GAAP cost.

Commitments_and_Contingencies_1

Commitments and Contingencies (Details) (USD $)	Sep. 30, 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	2,297
Tenant Improvement [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	2,114

Supplemental_Disclosure_of_Sta1

Supplemental Disclosure of Statement of Cash Flow Information (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Supplemental Disclosure of Statement of Cash Flow Information [Abstract]	'	'
Interest Paid	$69,097	$78,042
Income Taxes Paid	$2,611	$977

Subsequent_Events_Details

Subsequent Events (Details) (USD $)

1 Months Ended

3 Months Ended

9 Months Ended

1 Months Ended

1 Months Ended

1 Months Ended

Mar. 31, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2012

Nov. 07, 2013

Nov. 07, 2013

Nov. 07, 2013

Nov. 07, 2013

Sep. 30, 2013

Nov. 07, 2013

Nov. 07, 2013

Nov. 07, 2013

Nov. 07, 2013

Nov. 07, 2013

Nov. 07, 2013

Nov. 07, 2013

Nov. 07, 2013

sqft

sqft

Subsequent Event [Member]

New York, New York [Member]

Danville, Virginia [Member]

Term Sheet [Member]

Tenant Improvement [Member]

Tenant Improvement [Member]

Hospital [Member]

Hospital [Member]

Hospital [Member]

Hospital [Member]

High-rise Hotels [Member]

Veterinary Hospitals [Member]

Veterinary Hospitals [Member]

properties

properties

options

Subsequent Event [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Schaumburg, Illinios [Member]

Kennewick, Washington [Member]

Percentage of Completion, Initial Rate [Member]

Percentage of Completion, Substantial Completion [Member]

Percentage of Completion, After Substantial Completion [Member]

New York, New York [Member]

Joint Venture [Member]

Joint Venture [Member]

properties

Subsequent Event [Member]

Subsequent Event [Member]

Kennewick, Washington [Member]

Kennewick, Washington [Member]

Kennewick, Washington [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Nonrecourse Mortgage [Member]

acre

sqft

Subsequent Event [Member]

Subsequent Event [Member]

Subsequent Event [Member]

hotel

Subsequent Event [Member]

Room

sqft

Floor

Subsequent Event [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of credit, maximum borrowing capacity

'

'

'

'

'

'

'

'

'

'

$85,000,000

'

'

'

'

'

'

Square Feet

'

1,442,000

1,442,000

'

'

'

'

'

'

'

168,000

'

'

'

480,000

'

'

Lease Term (Years)

'

'

'

'

'

'99 years

'

'

'

'

'30 years

'

'

'

'

'20 years

'

Business acquisition, cash paid

'

'

'

'

'

'

'

'

'

'

110,000,000

'

'

'

'

'

'

Stated interest rate

'

'

'

'

'

'

'

'

'

'

'

6.50%

8.75%

9.00%

'

'

'

Estimated ballon payment

'

'

'

'

'

'

'

'

'

'

87,549,000

'

'

'

'

'

'

Increase in quarterly dividends, percentage

'

'

'

'

10.00%

'

'

'

'

'

'

'

'

'

'

'

'

Dividends declared

'

$0.15

'

'

$0.17

'

'

'

'

'

'

'

'

'

'

'

'

Number of acquired properties

'

'

'

'

'

3

'

'

'

'

'

'

'

'

'

'

'

Area of property

'

'

'

'

'

0.6

'

'

'

'

'

'

'

'

'

'

'

Number of floors

'

'

'

'

'

'

'

'

'

'

'

'

'

'

103

'

'

Number of rooms

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,179

'

'

Initial annual rent per lease agreement

'

'

'

'

'

14,883

'

'

'

'

'

'

'

'

'

'

'

Annual rent per lease state as a percentage of the aggregate purchase price

'

'

'

'

'

4.90%

'

'

'

'

'

'

'

'

'

'

'

Annual minimum lease increase

'

'

'

'

'

2.00%

'

'

'

'

'

'

'

'

'

'

'

Annual maximum lease increase

'

'

'

'

'

3.00%

'

'

'

'

'

'

'

'

'

'

'

Total annual aggregate minimum rent

'

'

'

'

'

4,541,141,000

'

'

'

'

'

'

'

'

'

'

'

Lease, purchase option, original purchase price plus a specified return, amount of specified return

'

'

'

'

'

7.50%

'

'

'

'

'

'

'

'

'

'

'

Lease, purchase option, specified floor price

'

'

'

'

'

305,000,000

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Face Amount

'

'

'

'

'

'

'

213,500,000

'

'

'

'

'

'

'

'

18,791,000

Debt Instrument, Interest Rate, Stated Percentage

'

'

'

'

'

'

'

4.66%

'

'

'

'

'

'

'

4.01%

'

Debt Instrument, Term

'

'

'

'

'

'

'

'13 years

'

'

'

'

'

'

'

'

'

Change in credit facility borrowings

'

'

-67,000,000

-93,000,000

216,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Obligation for tenant improvements

'

'

'

'

'

'

'

'

234,000

9,000,000

'

'

'

'

'

'

'

Common shares issued during period

23,000,000

'

'

'

11,500,000

'

'

'

'

'

'

'

'

'

'

'

'

Stock Issued During Period, Value, New Issues

'

'

'

'

126,270,000

'

'

'

'

'

'

'

'

'

'

'

'

Capitalization Rate

'

'

'

'

'

'

5.50%

'

'

'

'

'

'

'

'

6.90%

'

Number of renewal options

'

'

'

'

11

'

'

'

'

'

'

'

'

'

'

'

'

Tenant Renewal Options, Term

'

'

'

'

'

'

'5 years

'

'

'

'

'

'

'

'

'

'

Equity Method Investment, Ownership Percentage

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

15.00%

'

Consideration transferred

'

'

$166,468,000

'

'

$302,000,000

$4,727,000

'

'

'

'

'

'

'

'

$39,456,000

'

Number of Real Estate Properties

'

215

215

'

'

'

'

'

'

'

'

'

'

'

3

'

'