LXP Industrial Trust (LXP) 10-K 25 Feb 16 2015 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2015	Feb. 23, 2016	Jun. 30, 2015
Document and Entity Information [Abstract]
Entity Registrant Name	LEXINGTON REALTY TRUST
Entity Central Index Key	910,108
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned User	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$ 1,960,967,318
Entity Common Stock, Shares Outstanding		235,226,539
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	FY
Document Type	10-K
Amendment Flag	false
Document Period Ended Date	Dec. 31, 2015

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands		Dec. 31, 2015	Dec. 31, 2014
Assets:
Real estate, at cost		$ 3,789,711	$ 3,671,560
Real estate - intangible assets		692,778	705,566
Investments in real estate under construction		95,402	106,238
Real estate, gross		4,577,891	4,483,364
Less: accumulated depreciation and amortization	[1]	1,179,969	1,196,114
Real estate, net		3,397,922	3,287,250
Assets held for sale		24,425	3,379
Cash and cash equivalents		93,249	191,077
Restricted cash		10,637	17,379
Investment in and advances to non-consolidated entities		31,054	19,402
Deferred expenses (net of accumulated amortization of $38,547 in 2015 and $34,087 in 2014)		63,832	65,860
Loans receivable, net		95,871	105,635
Rent receivable - current		7,193	6,311
Rent receivable – deferred		87,547	61,372
Other assets		18,505	20,229
Total assets		3,830,235	3,777,894
Liabilities:
Mortgages and notes payable		882,952	945,216
Credit facility borrowings		177,000	0
Term loans payable		505,000	505,000
Senior notes payable		497,947	497,675
Convertible notes payable		12,180	15,664
Trust preferred securities		129,120	129,120
Dividends payable		45,440	42,864
Liabilities held for sale		8,405	2,843
Accounts payable and other liabilities		41,479	37,740
Accrued interest payable		8,851	8,301
Deferred revenue - including below market leases (net of accumulated accretion of $30,548 in 2015 and $35,239 in 2014)		42,524	68,215
Prepaid rent		16,806	16,336
Total liabilities		$ 2,367,704	$ 2,268,974
Commitments and contingencies
Equity:
Common shares, par value $0.0001 per share; authorized 400,000,000 shares, 234,575,225 and 233,278,037 shares issued and outstanding in 2015 and 2014, respectively		$ 23	$ 23
Additional paid-in-capital		2,776,837	2,763,374
Accumulated distributions in excess of net income		(1,428,908)	(1,372,051)
Accumulated other comprehensive income (loss)		(1,939)	404
Total shareholders’ equity		1,440,029	1,485,766
Noncontrolling interests		22,502	23,154
Total equity		1,462,531	1,508,920
Total liabilities and equity		3,830,235	3,777,894
Series C [Member]
Equity:
Series C Cumulative Convertible Preferred, liquidation preference $96,770 and 1,935,400 shares issued and outstanding		$ 94,016	$ 94,016
[1]	Includes accumulated amortization of real estate intangible assets of $367,762 and $400,628 in 2015 and 2014, respectively. The estimated amortization of the above real estate intangible assets for the next five years is $34,418 in 2016, $30,561 in 2017, $26,215 in 2018, $20,943 in 2019 and $16,722 in 2020.

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Assets:
Accumulated amortization on deferred expenses	$ 38,547	$ 34,087
Liabilities:
Accretion on deferred revenue	$ 30,548	$ 35,239
Equity:
Preferred shares, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred shares, authorized shares (in shares)	100,000,000	100,000,000
Common shares, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common shares, authorized shares (in shares)	400,000,000	400,000,000
Common shares, shares issued (in shares)	234,575,225	233,287,037
Common shares, shares outstanding (in shares)	234,575,225	233,278,037
Series C [Member]
Equity:
Preferred shares, liquidation preference	$ 96,770	$ 96,770
Preferred shares, convertible preferred, shares issued (in shares)	1,935,400	1,935,400
Preferred shares, redeemable preferred, shares outstanding (in shares)	1,935,400	1,935,400

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Gross revenues:
Rental	$ 399,485	$ 392,480	$ 335,721
Tenant reimbursements	31,354	31,338	25,334
Total gross revenues	430,839	423,818	361,055
Expense applicable to revenues:
Depreciation and amortization	(163,198)	(154,837)	(157,901)
Property operating	(59,655)	(63,673)	(54,757)
General and administrative	(29,276)	(28,255)	(28,426)
Non-operating income	11,429	14,505	9,160
Interest and amortization expense	(89,739)	(97,303)	(85,892)
Gains on sales of financial assets, net	0	855	0
Debt satisfaction gains (charges), net	25,150	(9,452)	(25,347)
Impairment charges and loan losses	(36,832)	(37,333)	(35,579)
Gains on sales of properties	23,307	0	0
Income (loss) before provision for income taxes, equity in earnings (losses) of non-consolidated entities and discontinued operations	112,025	48,325	(17,687)
Provision for income taxes	(568)	(1,109)	(3,177)
Equity in earnings (losses) of non-consolidated entities	1,752	626	(157)
Income (loss) from continuing operations	113,209	47,842	(21,021)
Discontinued operations:
Income from discontinued operations	109	6,252	6,244
Provision for income taxes	(4)	(59)	(1,817)
Debt satisfaction gains (charges), net	0	(312)	8,905
Gains on sales of properties	1,577	57,507	24,472
Impairment charges	0	(13,767)	(12,920)
Total discontinued operations	1,682	49,621	24,884
Net income	114,891	97,463	3,863
Less net income attributable to noncontrolling interests	(3,188)	(4,359)	(2,233)
Net income attributable to Lexington Realty Trust shareholders	111,703	93,104	1,630
Allocation to participating securities	(313)	(490)	(656)
Net income (loss) attributable to common shareholders	$ 105,100	$ 86,324	$ (14,089)
Income (loss) per common share – basic:
Income (loss) from continuing operations, basic (usd per share)	$ 0.44	$ 0.17	$ (0.18)
Income (loss) from discontinued operations, basic (usd per share)	0.01	0.21	0.11
Net income (loss) attributable to common shareholders, basic (usd per share)	$ 0.45	$ 0.38	$ (0.07)
Weighted-average common shares outstanding - basic (in shares)	233,455,056	228,966,253	209,797,238
Income (loss) per common share – diluted:
Income (loss) from continuing operations, diluted (usd per share)	$ 0.44	$ 0.17	$ (0.18)
Income (loss) from discontinued operations, diluted (usd per share)	0.01	0.21	0.11
Net income (loss) attributable to common shareholders, diluted (usd per share)	$ 0.45	$ 0.38	$ (0.07)
Weighted-average common shares outstanding (in shares)	233,751,775	229,436,708	209,797,238
Amounts attributable to common shareholders:
Income (loss) from continuing operations	$ 103,418	$ 37,652	$ (38,506)
Income from discontinued operations	1,682	48,672	24,417
Net income (loss) attributable to common shareholders	105,100	86,324	(14,089)
Series C [Member]
Discontinued operations:
Dividends attributable to preferred shares	(6,290)	(6,290)	(6,290)
Series D [Member]
Discontinued operations:
Dividends attributable to preferred shares	0	0	(3,543)
Deemed dividend – Series D	$ 0	$ 0	$ (5,230)	[1]
[1]	Represents the difference between the redemption cost and historical GAAP cost. Accordingly, net income was adjusted for the deemed dividends to arrive at net income (loss) attributable to common shareholders.

CONSOLIDATED STATEMENTS OF OPE5

CONSOLIDATED STATEMENTS OF OPERATIONS (Parentheticals)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Series C [Member]
Preferred dividend rate	6.50%	6.50%	6.50%
Series D [Member]
Preferred dividend rate	7.55%	7.55%	7.55%

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 114,891	$ 97,463	$ 3,863
Other comprehensive income (loss):
Change in unrealized gain (loss) on interest rate swaps, net	(2,343)	(4,035)	10,663
Other comprehensive income (loss)	(2,343)	(4,035)	10,663
Comprehensive income	112,548	93,428	14,526
Comprehensive income attributable to noncontrolling interests	(3,188)	(4,359)	(2,233)
Comprehensive income attributable to Lexington Realty Trust shareholders	$ 109,360	$ 89,069	$ 12,293

CONSOLIDATED STATEMENT OF CHANG

CONSOLIDATED STATEMENT OF CHANGES IN EQUITY - USD ($) $ in Thousands	Total	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in-Capital [Member]	Accumulated Distributions in Excess of Net Income [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Non-controlling Interests [Member]
Beginning balance at Dec. 31, 2012	$ 1,333,165	$ 243,790	$ 18	$ 2,212,949	$ (1,143,803)	$ (6,224)	$ 26,435
Beginning balance (in shares) at Dec. 31, 2012		8,135,400	178,616,664
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Redemption of noncontrolling OP units for common shares				1,053			(1,053)
Redemption of noncontrolling OP units for common shares (in shares)			202,241
Repurchase of preferred shares	(155,004)	$ (149,774)			(5,230)
Repurchase of preferred shares (in shares)		(6,200,000)
Issuance of common shares upon conversion of convertible notes	$ 60,686		$ 1	60,685
Issuance of common shares upon conversion of Convertible Notes (in shares)	7,944,673		7,944,673
Issuance of common shares and deferred compensation amortization, net	$ 440,835		$ 4	440,831
Issuance of common shares and deferred compensation amortization, net (in shares)			40,947,537
Acquisition of consolidated joint venture partner's equity interest	(8,918)				(8,918)
Exercise of employee common share options	2,289			2,289
Exercise of employee common share options, net (in shares)			955,478
Forfeiture of employee common shares	(20)			(20)
Forfeiture of employee common shares (in shares)			(3,571)
Dividends/distributions	(148,076)				(144,206)		(3,870)
Net income	3,863				1,630		2,233
Other comprehensive income (loss)	10,663					10,663
Ending balance at Dec. 31, 2013	1,539,483	$ 94,016	$ 23	2,717,787	(1,300,527)	4,439	23,745
Ending balance (in shares) at Dec. 31, 2013		1,935,400	228,663,022
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Redemption of noncontrolling OP units for common shares	(1,962)			(858)			(1,104)
Redemption of noncontrolling OP units for common shares (in shares)			29,086
Issuance of common shares upon conversion of convertible notes	$ 14,347			14,347
Issuance of common shares upon conversion of Convertible Notes (in shares)	1,904,542		1,904,542
Issuance of common shares and deferred compensation amortization, net	$ 31,558			31,558
Issuance of common shares and deferred compensation amortization, net (in shares)			2,391,193
Acquisition of consolidated joint venture partner's equity interest	(2,100)				(2,262)		162
Exercise of employee common share options	597			597
Exercise of employee common share options, net (in shares)			303,852
Forfeiture of employee common shares	(57)			(57)
Forfeiture of employee common shares (in shares)			(13,658)
Dividends/distributions	(166,374)				(162,366)		(4,008)
Net income	97,463				93,104		4,359
Other comprehensive income (loss)	(4,035)					(4,035)
Ending balance at Dec. 31, 2014	1,508,920	$ 94,016	$ 23	2,763,374	(1,372,051)	404	23,154
Ending balance (in shares) at Dec. 31, 2014		1,935,400	233,278,037
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Redemption of noncontrolling OP units for common shares				165			(165)
Redemption of noncontrolling OP units for common shares (in shares)			32,780
Repurchase of common shares	(18,431)			(18,431)
Repurchase of common shares (in shares)			(2,216,799)
Issuance of common shares upon conversion of convertible notes	$ 3,630			3,630
Issuance of common shares upon conversion of Convertible Notes (in shares)	519,664		519,664
Issuance of common shares and deferred compensation amortization, net	$ 28,099			28,099
Issuance of common shares and deferred compensation amortization, net (in shares)			2,961,543
Acquisition of consolidated joint venture partner's equity interest	(1,234)				(1,247)		13
Dividends/distributions	(171,001)				(167,313)		3,688
Net income	114,891				111,703		3,188
Other comprehensive income (loss)	(2,343)					(2,343)
Ending balance at Dec. 31, 2015	$ 1,462,531	$ 94,016	$ 23	$ 2,776,837	$ (1,428,908)	$ (1,939)	$ 22,502
Ending balance (in shares) at Dec. 31, 2015		1,935,400	234,575,225

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Cash flows from operating activities:
Net income	$ 114,891	$ 97,463	$ 3,863
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	167,186	167,289	183,833
Gains on sales of properties	(24,884)	(57,507)	(24,472)
Gains on sales of financial assets, net	0	(855)	0
Debt satisfaction (gains) charges, net	(25,240)	2,859	3,989
Impairment charges and loan losses	36,832	51,100	48,499
Straight-line rents	(46,432)	(46,254)	(23,538)
Other non-cash (income) expense, net	3,695	(390)	5,248
Equity in (earnings) losses of non-consolidated entities	(1,752)	(626)	157
Distributions of accumulated earnings from non-consolidated entities, net	2,056	1,381	918
Deferred taxes, net	(77)	124	752
Increase (decrease) in accounts payable and other liabilities	4,314	(3,716)	6,223
Change in rent receivable and prepaid rent, net	1,967	(617)	4,420
Increase (decrease) in accrued interest payable	2,438	(963)	(1,058)
Other adjustments, net	9,936	5,384	(2,530)
Net cash provided by operating activities:	244,930	214,672	206,304
Cash flows from investing activities:
Investment in real estate, including intangible assets	(349,926)	(122,395)	(447,571)
Investment in real estate under construction	(137,158)	(131,153)	(106,009)
Capital expenditures	(29,110)	(17,681)	(48,822)
Net proceeds from sale of properties	156,461	237,866	75,519
Principal payments received on loans receivable	4,746	44,661	2,056
Investment in loans receivable	(10,274)	(43,555)	(60,727)
Investments in and advances to non-consolidated entities, net	(18,900)	(2,948)	(8,193)
Distributions from non-consolidated entities in excess of accumulated earnings	1,728	1,314	15,603
Increase in deferred leasing costs	(6,681)	(10,484)	(12,060)
Proceeds from the sale of marketable equity securities	0	725	0
Investment in marketable equity securities	0	(689)	0
Change in escrow deposits and restricted cash	2,745	916	(7,141)
Change in real estate deposits	(1,902)	355	(238)
Net cash used in investing activities	(388,271)	(43,068)	(597,583)
Cash flows from financing activities:
Dividends to common and preferred shareholders	(164,737)	(159,520)	(135,539)
Proceeds from senior notes	0	249,708	247,565
Conversion of convertible notes	(529)	(233)	(3,270)
Principal amortization payments	(32,440)	(35,206)	(34,446)
Principal payments on debt, excluding normal amortization	(106,956)	(202,262)	(347,122)
Change in revolving credit facility borrowing, net	177,000	(48,000)	48,000
Increase in deferred financing costs	(9,336)	(4,558)	(12,307)
Proceeds of mortgages and notes payable	190,843	27,790	253,500
Proceeds from term loans	0	99,000	151,000
Change in restricted cash	(1,573)	0	0
Cash distributions to noncontrolling interests	(3,688)	(4,008)	(3,870)
Purchase of a noncontrolling interest	(4,022)	(2,100)	(8,918)
Repurchase of common and preferred shares	(18,431)	0	(155,004)
Redemption of noncontrolling interests	0	(1,962)	0
Issuance of common shares, net	19,382	23,563	434,927
Net cash provided by (used in) financing activities	45,513	(57,788)	434,516
Change in cash and cash equivalents	(97,828)	113,816	43,237
Cash and cash equivalents, at beginning of year	191,077	77,261	34,024
Cash and cash equivalents, at end of year	$ 93,249	$ 191,077	$ 77,261

The Company

The Company	12 Months Ended
	Dec. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
The Company	The Company Lexington Realty Trust (together with its consolidated subsidiaries, except when the context only applies to the parent entity, the “Company”) is a self-managed and self-administered Maryland statutory real estate investment trust (“REIT”) that owns a diversified portfolio of equity and debt investments in single-tenant properties and land. A majority of the real properties in which the Company has an interest and all land interests are generally subject to net leases or similar leases where the tenant pays all or substantially all of the cost, including cost increases, for real estate taxes, insurance, utilities and ordinary maintenance of the property. However, certain leases provide that the landlord is responsible for certain operating expenses. As of December 31, 2015 , the Company had equity ownership interests in approximately 215 consolidated properties located in 40 states. The properties in which the Company has an interest are leased to tenants in various industries including service, automotive, technology, transportation/logistics and finance/insurance. The Company believes it has qualified as a REIT under the Internal Revenue Code of 1986, as amended (the “Code”). Accordingly, the Company will not be subject to federal income tax, provided that distributions to its shareholders equal at least the amount of its REIT taxable income as defined under the Code. The Company is permitted to participate in certain activities from which it was previously precluded in order to maintain its qualification as a REIT, so long as these activities are conducted in entities which elect to be treated as taxable REIT subsidiaries (“TRS”) under the Code. As such, the TRS are subject to federal income taxes on the income from these activities. The Company conducts its operations either directly or indirectly through (1) property owner subsidiaries and lender subsidiaries, which are single purpose entities, (2) an operating partnership, Lepercq Corporate Income Fund L.P. (“LCIF”), 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, (3) Lexington Realty Advisors, Inc. (“LRA”), a wholly-owned TRS, and (4) investments in joint ventures. On December 30, 2013, another operating partnership, Lepercq Corporate Income Fund II L.P. (“LCIF II”) , was merged with and into LCIF, with LCIF as the surviving entity. References to “OP Units” refer to units of limited partner interests in LCIF or LCIF II, as applicable. Property owner subsidiaries are landlords under leases for properties in which the Company has an interest and/or borrowers under loan agreements secured by properties in which the Company has an interest and lender subsidiaries are lenders under loan agreements where the Company made an investment in a loan asset, but in all cases are separate and distinct legal entities. The assets and credit of a property owner subsidiary or a lender subsidiary are not available to satisfy the debt and other obligations of any other person, including any other property owner subsidiary or lender subsidiary or any other affiliate.

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2015
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Basis of Presentation and Consolidation. The Company's consolidated financial statements are prepared on the accrual basis of accounting in accordance with U.S. generally accepted accounting principles (“GAAP”). The financial statements reflect the accounts of the Company and its consolidated subsidiaries. The Company consolidates its wholly-owned subsidiaries, partnerships and joint ventures which it controls (i) through voting rights or similar rights or (ii) by means other than voting rights if the Company is the primary beneficiary of a variable interest entity ("VIE"). Entities which the Company does not control and entities which are VIEs in which the Company is not the primary beneficiary are accounted for under appropriate GAAP. If an investment is determined to be a VIE, the Company performs an analysis to determine if the Company is the primary beneficiary of the VIE. GAAP requires a VIE to be consolidated by its primary beneficiary. The primary beneficiary is the party that has a controlling financial interest in an entity. A controlling financial interest in an entity represents both (1) the power to direct the activities of a VIE that most significantly impact the entity's economic performance and (2) the obligation to absorb losses or the right to receive benefits of an entity that could potentially be significant to the VIE. At December 31, 2015 and 2014 , the Company held variable interests in certain non-consolidated VIEs; however, the Company was not the primary beneficiary of these VIEs as the Company does not have a controlling financial interest in the entities. The Company has certain acquisition commitments and/or acquisition, development and construction arrangements with VIEs, for which it is obligated to fund certain amounts as discussed in note 4. Earnings Per Share . Basic net income (loss) per share is computed by dividing net income (loss) reduced by preferred dividends and amounts allocated to certain non-vested share-based payment awards, if applicable, by the weighted-average number of common shares outstanding during the period. Diluted net income (loss) per share amounts are similarly computed but include the effect, when dilutive, of in-the-money common share options and non-vested common shares, OP units and put options of certain convertible securities. Use of Estimates. Management has made a number of significant estimates and assumptions relating to the reporting of assets and liabilities, the disclosure of contingent assets and liabilities and the reported amounts of revenues and expenses to prepare these consolidated financial statements in conformity with GAAP. These estimates and assumptions are based on management's best estimates and judgment. Management evaluates its estimates and assumptions on an ongoing basis using historical experience and other factors, including the current economic environment. The current economic environment has increased the degree of uncertainty inherent in these estimates and assumptions. Management adjusts such estimates when facts and circumstances dictate. The most significant estimates made include the recoverability of accounts receivable, allocation of property purchase price to tangible and intangible assets acquired and liabilities assumed, the determination of VIEs and which entities should be consolidated, the determination of impairment of long-lived assets, loans receivable and equity method investments, valuation of derivative financial instruments, valuation of compensation plans and the useful lives of long-lived assets. Actual results could differ materially from those estimates. Fair Value Measurements. The Company follows the guidance in the Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") Topic 820, Fair Value Measurements and Disclosures ("Topic 820"), to determine the fair value of financial and non-financial instruments. Topic 820 defines fair value, establishes a framework for measuring fair value in GAAP and expands disclosures about fair value measurements. Topic 820 establishes a fair value hierarchy that prioritizes observable and unobservable inputs used to measure fair value into three levels: Level 1 - quoted prices (unadjusted) in active markets that are accessible at the measurement date for assets or liabilities; Level 2 - observable prices that are based on inputs not quoted in active markets, but corroborated by market data; and Level 3 - unobservable inputs, which are used when little or no market data is available. The fair value hierarchy gives the highest priority to Level 1 inputs and the lowest priority to Level 3 inputs. In determining fair value, the Company utilizes valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs to the extent possible, as well as considering counterparty credit risk. The Company has formally elected to apply the portfolio exception within Topic 820 with respect to measuring counterparty risk for all of its derivative transactions subject to master netting arrangements. Revenue Recognition. The Company recognizes lease revenue on a straight-line basis over the term of the lease unless another systematic and rational basis is more representative of the time pattern in which the use benefit is derived from the leased property. Revenue is recognized on a contractual basis for leases with escalations tied to a consumer price index with no floor. Renewal options in leases with rental terms that are lower than those in the primary term are excluded from the calculation of straight-line rent if the renewals are not reasonably assured. If the Company funds tenant improvements and the improvements are deemed to be owned by the Company, revenue recognition will commence when the improvements are substantially completed and possession or control of the space is turned over to the tenant. If the Company determines that the tenant allowances are lease incentives, the Company commences revenue recognition when possession or control of the space is turned over to the tenant for tenant work to begin. The lease incentive is recorded as a deferred expense and amortized as a reduction of revenue on a straight-line basis over the respective lease term. The Company recognizes lease termination fees as rental revenue in the period received and writes off unamortized lease-related intangible and other lease-related account balances, provided there are no further Company obligations under the lease. Otherwise, such fees and balances are recognized on a straight-line basis over the remaining obligation period with the termination payments being recorded as a component of rent receivable-deferred on the Consolidated Balance Sheets. Gains on sales of real estate are recognized based upon the specific timing of the sale as measured against various criteria related to the terms of the transactions and any continuing involvement associated with the properties. If the sales criteria are not met, the gain is deferred and the finance, installment or cost recovery method, as appropriate, is applied until the sales criteria are met. To the extent the Company sells a property and retains a partial ownership interest in the property, the Company recognizes gain to the extent of the third-party ownership interest. Purchase Accounting and Acquisition of Real Estate. The fair value of the real estate acquired, which includes the impact of fair value adjustments for assumed mortgage debt related to property acquisitions, is allocated to the acquired tangible assets, consisting of land, building and improvements and identified intangible assets and liabilities, consisting of the value of above-market and below-market leases, other value of in-place leases and value of tenant relationships, based in each case on their fair values. Acquisition costs are expensed as incurred and are included in property operating expense in the accompanying Consolidated Statement of Operations. The fair value of the tangible assets of an acquired property (which includes land, building and improvements and fixtures and equipment) is determined by valuing the property as if it were vacant. The “as-if-vacant” value is then allocated to land and building and improvements based on management's determination of relative fair values of these assets. Factors considered by management in performing these analyses include an estimate of carrying costs during the expected lease-up periods considering current market conditions and costs to execute similar leases. In estimating carrying costs, management includes real estate taxes, insurance and other operating expenses and estimates of lost rental revenue during the expected lease-up periods based on current market demand. Management also estimates costs to execute similar leases including leasing commissions. In allocating the fair value of the identified intangible assets and liabilities of an acquired property, above-market and below-market lease values are recorded based on the difference between the current in-place lease rent and management's estimate of current market rents. Below-market lease intangibles are recorded as part of deferred revenue and amortized into rental revenue over the non-cancelable periods and bargain renewal periods of the respective leases. Above-market leases are recorded as part of intangible assets and amortized as a direct charge against rental revenue over the non-cancelable portion of the respective leases. The aggregate value of other acquired intangible assets, consisting of in-place leases and tenant relationship values, is measured by the excess of (1) the purchase price paid for a property over (2) the estimated fair value of the property as if vacant, determined as set forth above. This aggregate value is allocated between in-place lease values and tenant relationship values based on management's evaluation of the specific characteristics of each tenant's lease. The value of in-place leases is amortized to expense over the remaining non-cancelable periods and any bargain renewal periods of the respective leases. The value of tenant relationships is amortized to expense over the applicable lease term plus expected renewal periods. Depreciation is determined by the straight-line method over the remaining estimated economic useful lives of the properties. The Company generally depreciates its real estate assets over periods ranging up to 40 years. Impairment of Real Estate. The Company evaluates the carrying value of all tangible and intangible real estate assets held for investment for possible impairment when an event or change in circumstance has occurred that indicates its carrying value may not be recoverable. The evaluation includes estimating and reviewing anticipated future undiscounted cash flows to be derived from the asset. If such cash flows are less than the asset's carrying value, an impairment charge is recognized to the extent by which the asset's carrying value exceeds its estimated fair value, which may be below the balance of any non-recourse financing. Estimating future cash flows and fair values is highly subjective and such estimates could differ materially from actual results. Investments in Non-Consolidated Entities . The Company accounts for its investments in 50% or less owned entities under the equity method, unless consolidation is required. If the Company's investment in the entity is insignificant and the Company has no influence over the control of the entity then the entity is accounted for under the cost method. Impairment of Equity Method Investments. The Company assesses whether there are indicators that the value of its equity method investments may be impaired. An impairment charge is recognized only if the Company determines that a decline in the value of the investment below its carrying value is other-than-temporary. The assessment of impairment is highly subjective and involves the application of significant assumptions and judgments about the Company's intent and ability to recover its investment given the nature and operations of the underlying investment, including the level of the Company's involvement therein, among other factors. To the extent an impairment is deemed to be other-than-temporary, the loss is measured as the excess of the carrying amount of the investment over the estimated fair value of the investment. Loans Receivable. Loans held for investment are intended to be held to maturity and, accordingly, are carried at cost, net of unamortized loan origination costs and fees, loan purchase discounts, and net of an allowance for loan losses when such loan is deemed to be impaired. Loan origination costs and fees and loan purchase discounts are amortized over the term of the loan. The Company considers a loan impaired when, based upon current information and events, it is probable that it will be unable to collect all amounts due for both principal and interest according to the contractual terms of the loan agreement. Significant judgments are required in determining whether impairment has occurred. The Company performs an impairment analysis by comparing either the present value of expected future cash flows discounted at the loan's effective interest rate, the loan's observable current market price or the fair value of the underlying collateral to the net carrying value of the loan, which may result in an allowance and corresponding loan loss charge. Interest income is recorded on a cash basis for impaired loans. Acquisition, Development and Construction Arrangements. The Company evaluates loans receivable where the Company participates in residual profits through loan provisions or other contracts to ascertain whether the Company has the same risks and rewards as an owner or a joint venture partner. Where the Company concludes that such arrangements are more appropriately treated as an investment in real estate, the Company reflects such loan receivable as an equity investment in real estate under construction in the Consolidated Balance Sheets. In these cases, no interest income is recorded on the loan receivable and the Company records capitalized interest during the construction period. In arrangements where the Company engages a developer to construct a property or provide funds to a tenant to develop a property, the Company will capitalize the funds provided to the developer/tenant and internal costs of interest and real estate taxes, if applicable, during the construction period. Properties Held For Sale. Assets and liabilities of properties that meet various held for sale criteria, including whether it is probable that a sale will occur within 12 months, are presented separately in the Consolidated Balance Sheets. As of January 1, 2015, the operating results of these properties are reflected as discontinued operations in the Consolidated Statements of Operations only if the sale of these assets represents a strategic shift in operations, if not, the operating results are included in continuing operations. Properties classified as held for sale are carried at the lower of net carrying value or estimated fair value less costs to sell and depreciation and amortization are no longer recognized. Properties that do not meet the held for sale criteria are accounted for as operating properties. Deferred Expenses. Deferred expenses consist primarily of debt and leasing costs. Debt costs are amortized using the straight-line method, which approximates the interest method, over the terms of the debt instruments and leasing costs are amortized over the term of the related lease. Derivative Financial Instruments . The Company accounts for its interest rate swap agreements in accordance with FASB ASC Topic 815, Derivatives and Hedging ("Topic 815"). In accordance with Topic 815, these agreements are carried on the balance sheet at their respective fair values, as an asset if fair value is positive, or as a liability if fair value is negative. If the interest rate swap is designated as a cash flow hedge, the effective portion of the interest rate swap's change in fair value is reported as a component of other comprehensive income (loss); the ineffective portion, if any, is recognized in earnings as an increase or decrease to interest expense. Upon entering into hedging transactions, the Company documents the relationship between the interest rate swap agreement and the hedged item. The Company also documents its risk-management policies, including objectives and strategies, as they relate to its hedging activities. The Company assesses, both at inception of a hedge and on an ongoing basis, whether or not the hedge is highly effective. The Company will discontinue hedge accounting on a prospective basis with changes in the estimated fair value reflected in earnings when (1) it is determined that the derivative is no longer effective in offsetting cash flows of a hedged item (including forecasted transactions), (2) it is no longer probable that the forecasted transaction will occur or (3) it is determined that designating the derivative as an interest rate swap is no longer appropriate. The Company does and may continue to utilize interest rate swap and cap agreements to manage interest rate risk, but does not anticipate entering into derivative transactions for speculative trading purposes. Stock Compensation. The Company maintains an equity participation plan. Non-vested share grants generally vest either based upon (1) time, (2) performance and/or (3) market conditions. Options granted under the plan in 2010 vested over a five -year period and expire ten years from the date of grant. Options granted under the plan in 2008 vested upon attainment of certain market performance measures and expire ten years from the date of grant. All share-based payments to employees, including grants of employee stock options, are recognized in the Consolidated Statements of Operations based on their fair values. Tax Status. The Company has made an election to qualify, and believes it is operating so as to qualify, as a REIT for federal income tax purposes. Accordingly, the Company generally will not be subject to federal income tax, provided that distributions to its shareholders equal at least the amount of its REIT taxable income as defined under Sections 856 through 860 of the Code. The Company is permitted to participate in certain activities from which it was previously precluded in order to maintain its qualification as a REIT, so long as these activities are conducted in entities which elect to be treated as taxable REIT subsidiaries under the Code. As such, the Company is subject to federal and state income taxes on the income from these activities. Income taxes, primarily related to the Company's taxable REIT subsidiaries, are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax basis and operating loss and tax credit carry-forwards. Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which those temporary differences are expected to be recovered or settled. Cash and Cash Equivalents. The Company considers all highly liquid instruments with maturities of three months or less from the date of purchase to be cash equivalents. Restricted Cash. Restricted cash is comprised primarily of cash balances held in escrow with lenders. Environmental Matters. Under various federal, state and local environmental laws, statutes, ordinances, rules and regulations, an owner of real property may be liable for the costs of removal or remediation of certain hazardous or toxic substances at, on, in or under such property as well as certain other potential costs relating to hazardous or toxic substances. These liabilities may include government fines, penalties and damages for injuries to persons and adjacent property. Such laws often impose liability without regard to whether the owner knew of, or was responsible for, the presence or disposal of such substances. Although most of the tenants of properties in which the Company has an interest are primarily responsible for any environmental damage and claims related to the leased premises, in the event of the bankruptcy or inability of the tenant of such premises to satisfy any obligations with respect to such environmental liability, or if the tenant is not responsible, the Company's property owner subsidiary may be required to satisfy any such obligations, should they exist. In addition, the property owner subsidiary, as the owner of such a property, may be held directly liable for any such damages or claims irrespective of the provisions of any lease. As of December 31, 2015 , the Company was not aware of any environmental matter relating to any of its investments that would have a material impact on the consolidated financial statements. Segment Reporting. The Company operates generally in one industry segment, single-tenant real estate assets. Reclassifications . Certain amounts included in prior years' financial statements have been reclassified to conform to the current years presentation, including certain statement of operations captions. Recently Issued Accounting Guidance. In April 2014, the FASB issued Accounting Standards Update (“ASU”) 2014-08, Presentation of Financial Statements (Topic 205) and Property, Plant and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity, which changes the criteria for reporting discontinued operations and improves financial statement disclosures. Under this guidance, only disposals representing a strategic shift in operations that have a major effect on an organization's operations and financial results should be presented as discontinued operations. The Company adopted this guidance effective January 1, 2015. The guidance requires the Company to continue to classify any property disposal or property classified as held for sale as of December 31, 2014 as discontinued operations prospectively. Therefore, the revenues and expenses related to these properties are presented as discontinued operations as of December 31, 2015. The Company did not classify any additional properties as discontinued operations subsequent to December 31, 2014 as the dispositions did not represent a strategic shift in operations. The implementation of this guidance did not have a material impact on the Company's financial position, results of operations or cash flows. In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606), which amends the guidance for revenue recognition to eliminate the industry-specific revenue recognition guidance and replace it with a principle based approach for determining revenue recognition. The effective date of the new guidance was updated by ASU 2015-14 and is effective for reporting periods beginning after December 15, 2017. The Company is currently evaluating the impact of the adoption of the new guidance on its consolidated financial statements. In February 2015, the FASB issued ASU 2015-02, Consolidation (Topic 810) - Amendments to the Consolidation Analysis, which provides guidance on the consolidation evaluation for reporting organizations that are required to evaluate whether they should consolidate certain legal entities. In accordance with the guidance, all legal entities are subject to reevaluation under the revised consolidation model. The guidance is effective in the first quarter of 2016. The Company does not believe this guidance will have a material impact on its consolidated financial statements. In April 2015, the FASB issued ASU 2015-03, Simplifying the Presentation of Debt Issuance Costs, which requires that debt issuance costs be presented on the balance sheet as a direct deduction from the carrying amount of the related debt liability. In August 2015, the FASB issued additional guidance to clarify ASU 2015-03, which states that an entity may defer and present debt issuance costs as an asset and amortize the costs ratably over the term of a line of credit arrangement, regardless of whether there are any outstanding borrowings on the line of credit. The guidance is effective in the first quarter of 2016 and requires retrospective application. The Company does not believe this guidance will have a material impact on its consolidated financial statements.

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2015
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share A significant portion of the Company's non-vested share-based payment awards are considered participating securities and as such, the Company is required to use the two-class method for the computation of basic and diluted earnings per share. Under the two-class computation method, net losses are not allocated to participating securities unless the holder of the security has a contractual obligation to share in the losses. The non-vested share-based payment awards are not allocated losses as the awards do not have a contractual obligation to share in losses of the Company. The following is a reconciliation of the numerators and denominators of the basic and diluted earnings per share computations for each of the years in the three-year period ended December 31, 2015 : 2015 2014 2013 BASIC Income (loss) from continuing operations attributable to common shareholders $ 103,418 $ 37,652 $ (38,506 ) Income from discontinued operations attributable to common shareholders 1,682 48,672 24,417 Net income (loss) attributable to common shareholders $ 105,100 $ 86,324 $ (14,089 ) Weighted-average number of common shares outstanding 233,455,056 228,966,253 209,797,238 Income (loss) per common share: Income (loss) from continuing operations $ 0.44 $ 0.17 $ (0.18 ) Income from discontinued operations 0.01 0.21 0.11 Net income (loss) attributable to common shareholders $ 0.45 $ 0.38 $ (0.07 ) 2015 2014 2013 DILUTED: Income (loss) from continuing operations attributable to common shareholders $ 103,418 $ 37,652 $ (38,506 ) Impact of assumed conversions — — — Income (loss) from continuing operations attributable to common shareholders 103,418 37,652 (38,506 ) Income from discontinued operations attributable to common shareholders 1,682 48,672 24,417 Impact of assumed conversions: — — — Income from discontinued operations attributable to common shareholders 1,682 48,672 24,417 Net income (loss) attributable to common shareholders $ 105,100 $ 86,324 $ (14,089 ) Weighted-average common shares outstanding - basic 233,455,056 228,966,253 209,797,238 Effect of dilutive securities: Share options 296,719 470,455 — Weighted-average common shares outstanding 233,751,775 229,436,708 209,797,238 Income (loss) per common share: Income (loss) from continuing operations $ 0.44 $ 0.17 $ (0.18 ) Income from discontinued operations 0.01 0.21 0.11 Net income (loss) attributable to common shareholders $ 0.45 $ 0.38 $ (0.07 ) For per common share amounts, all incremental shares are considered anti-dilutive for periods that have a loss from continuing operations attributable to common shareholders. In addition, other common share equivalents may be anti-dilutive in certain periods.

Investments in Real Estate and

Investments in Real Estate and Real Estate Under Construction	12 Months Ended
	Dec. 31, 2015
Real Estate Investments, Net [Abstract]
Investments in Real Estate and Real Estate Under Construction	Investments in Real Estate and Real Estate Under Construction The Company's real estate, net, consists of the following at December 31, 2015 and 2014 : 2015 2014 Real estate, at cost: Buildings and building improvements $ 3,032,457 $ 2,895,585 Land, land estates and land improvements 743,125 755,168 Fixtures and equipment 5,577 5,861 Construction in progress 8,552 14,946 Real estate intangibles: In-place lease values 513,564 473,377 Tenant relationships 123,796 133,796 Above-market leases 55,418 98,393 Investments in real estate under construction 95,402 106,238 4,577,891 4,483,364 Accumulated depreciation and amortization (1) (1,179,969 ) (1,196,114 ) Real estate, net $ 3,397,922 $ 3,287,250 (1) Includes accumulated amortization of real estate intangible assets of $367,762 and $400,628 in 2015 and 2014 , respectively. The estimated amortization of the above real estate intangible assets for the next five years is $34,418 in 2016 , $30,561 in 2017 , $26,215 in 2018 , $20,943 in 2019 and $16,722 in 2020 . The Company had below-market leases, net of accumulated accretion, which are included in deferred revenue, of $ 28,967 and $ 54,414 , respectively as of December 31, 2015 and 2014 . The estimated accretion for the next five years is $ 2,327 in 2016 , $ 1,978 in 2017 , $ 1,970 in 2018 , $ 1,663 in 2019 and $ 1,494 in 2020 . The Company completed the following acquisitions and build-to-suit transactions during 2015 and 2014 : 2015 : Real Estate Intangible Property Type Location Acquisition/Completion Date Initial Cost Basis Lease Expiration Land and Land Estate Building and Improvements Lease in-place Value Land/Infrastructure Venice, FL January 2015 $ 16,850 01/2055 $ 4,696 $ 11,753 $ 401 Office Auburn Hills, MI March 2015 40,025 03/2029 4,416 30,012 5,597 Industrial Houston, TX March 2015 28,650 03/2035 4,674 19,540 4,436 Industrial Brookshire, TX March 2015 22,450 03/2035 2,388 16,614 3,448 Industrial Canton, MS March 2015 89,300 02/2027 5,077 71,289 12,934 Industrial Thomson, GA May 2015 10,144 05/2030 909 7,746 1,489 Industrial Oak Creek, WI July 2015 22,139 06/2035 3,015 15,300 3,824 Industrial Richland, WA November 2015 152,000 08/2035 1,293 126,947 23,760 Office Richmond, VA December 2015 109,544 08/2030 7,331 88,021 14,192 $ 491,102 $ 33,799 $ 387,222 $ 70,081 Weighted-average life of intangible assets (years) 16.8 2014 : Real Estate Intangible Property Type Location Acquisition/Completion Date Initial Cost Basis Lease Expiration Land and Land Estate Building and Improvements Lease in-place Value Industrial Rantoul, IL January 2014 $ 41,277 10/2033 $ 1,304 $ 32,562 $ 7,411 Office Parachute, CO January 2014 13,928 10/2032 1,400 10,751 1,777 Office Rock Hill, SC March 2014 24,715 03/2034 1,601 18,989 4,125 Industrial Lewisburg, TN May 2014 13,320 03/2026 173 10,865 2,282 Industrial North Las Vegas, NV May 2014 28,249 09/2034 3,244 21,444 3,561 Industrial Bingen, WA May 2014 20,391 05/2024 — 18,075 2,316 Land New York, NY October 2014 30,426 10/2113 22,000 — 8,426 Rehab Hospital Vineland, NJ October 2014 19,100 02/2043 2,698 12,790 3,612 Industrial Anniston, AL December 2014 20,907 11/2029 1,201 16,771 2,935 $ 212,313 $ 33,621 $ 142,247 $ 36,445 Weighted-average life of intangible assets (years) 37.5 The Company recognized aggregate acquisition and pursuit expenses of $2,404 and $1,901 in 2015 and 2014 , respectively, which are included in property operating expenses within the Company's Consolidated Statements of Operations. The Company is engaged in various forms of build-to-suit development activities. The Company may enter into the following acquisition, development and construction arrangements: (1) lend funds to construct build-to-suit projects subject to a single-tenant lease and agree to purchase the properties upon completion of construction and commencement of a single-tenant lease, (2) hire developers to construct built-to-suit projects on owned properties leased to single tenants, (3) fund the construction of build-to-suit projects on owned properties pursuant to the terms in single-tenant lease agreements or (4) enter into purchase and sale agreements with developers to acquire single-tenant build-to-suit properties upon completion. As of December 31, 2015 , the Company had the following development arrangements outstanding: Location Property Type Square Feet Expected Maximum Commitment/Contribution Lease Term (Years) Estimated Acquisition/ Completion Date GAAP Investment Balance as of 12/31/15 Anderson, SC Industrial 1,325,000 $ 70,012 20 2Q 16 $ 23,826 Lake Jackson, TX Office 664,000 166,164 20 4Q 16 62,353 Charlotte, NC Office 201,000 62,445 15 1Q 17 9,223 2,190,000 $ 298,621 $ 95,402 The Company has variable interests in certain developer entities constructing the facilities but is not the primary beneficiary of the entities as the Company does not have a controlling financial interest. As of December 31, 2015 and 2014 , the Company's aggregate investment in development arrangements was $95,402 and $106,238 , respectively, which includes $2,726 and $2,828 of interest capitalized, respectively, and is presented as investments in real estate under construction in the accompanying Consolidated Balance Sheets.

Property Dispositions and Disco

Property Dispositions and Discontinued Operations	12 Months Ended
	Dec. 31, 2015
Discontinued Operations and Disposal Groups [Abstract]
Property Dispositions and Discontinued Operations	Property Dispositions and Discontinued Operations For the years ended December 31, 2015 , 2014 and 2013 , the Company disposed of its interests in certain properties (excluding Greenville, South Carolina in 2014, see note 7) generating aggregate net proceeds of $156,461 , $226,375 and $75,519 , respectively, which resulted in gains on sales of $24,884 , $57,507 and $24,472 , respectively. For the years ended December 31, 2015 , 2014 and 2013 , the Company recognized net debt satisfaction gains (charges) relating to these properties of $21,504 , $(312) and $8,905 , respectively. The results of operations for properties disposed of in 2015, that were not classified as held for sale as of December 31, 2014 , are included within continuing operations in the consolidated financial statements in accordance with recent guidance issued by the FASB. At December 31, 2015 , the Company had two properties classified as held for sale. Assets and liabilities of held for sale properties as of December 31, 2015 consisted of the following: Assets: Real estate, at cost $ 16,590 Real estate, intangible assets 10,786 Accumulated depreciation and amortization (4,069 ) Deferred rent receivable 1,118 $ 24,425 Liabilities: Other $ 32 Mortgage payable 8,373 $ 8,405

Impairment of Real Estate Inves

Impairment of Real Estate Investments	12 Months Ended
	Dec. 31, 2015
Impairment of Real Estate [Abstract]
Impairment of Real Estate Investments	Impairment of Real Estate Investments The Company assesses on a regular basis whether there are any indicators that the carrying value of real estate assets may be impaired. Potential indicators may include an increase in vacancy at a property, tenant 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 2015 , 2014 and 2013 , the Company recognized aggregate impairment charges of $36,832 , $34,833 and $21,640 , respectively, on real estate assets classified in continuing operations. The Company determined that the expected undiscounted cash flows based upon revised estimated holding periods of certain assets were below the current carrying values. During 2014 and 2013 , the Company recognized $13,767 and $12,920 , respectively, of impairment charges in discontinued operations, relating to real estate assets that were ultimately disposed of below their carrying value.

Loans Receivable

Loans Receivable	12 Months Ended
	Dec. 31, 2015
Loans Receivable, Net [Abstract]
Loans Receivable	Loans Receivable As of December 31, 2015 and 2014 , the Company's loans receivable 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 December 31, 2015 and 2014 : Loan carrying value (1) Loan 12/31/2015 12/31/2014 Interest Rate Maturity Date Westmont, IL (2) $ — $ 12,152 6.45 % 10/2015 Southfield, MI (3) — 3,296 4.55 % 02/2015 Oklahoma City, OK (4) 8,501 — 11.50 % 03/2016 Austin, TX — 2,800 16.00 % 10/2018 Kennewick, WA 85,505 85,254 9.00 % 05/2022 Other 1,865 2,133 8.00 % 2021-2022 $ 95,871 $ 105,635 (1) Loan carrying value includes accrued interest and is net of origination costs and loan losses, if any. (2) In 2015, the Company acquired the office property collateral and $2,521 of cash collateral and received $1,400 in full settlement of its claim against the borrower. The Company recognized a loan loss of $13,939 during 2013. During 2014 and 2013, the Company recognized $1,284 and $1,737 , respectively, of interest income relating to the impaired loan. (3) In 2015, the Company acquired the office property collateral from the borrower. The Company recorded a $2,500 loan loss in 2014 as the Company determined it was probable that it would not collect the amount owed at maturity. During 2015 and 2014, the Company recognized $14 and $468 , respectively, of interest income relating to the impaired loan. (4) In 2015, the Company loaned a tenant-in-common $8,420 . The loan is secured by the tenant-in-common's interest in an office property in which the Company has a 40% interest. Prior to December 31, 2014 , the Company had two types of financing receivables: loans receivable and a capitalized financing lease. The Company determined that its financing receivables operated within one portfolio segment as they were both within the same industry and use the same impairment methodology. The capitalized financing lease, for a commercial office property located in Greenville, South Carolina, was sold in December 2014 for net proceeds of $11,491 . 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 (1) are collateralized by commercial real estate and (2) similar metrics are used to monitor the risk and performance of these assets. The Company's management uses credit quality indicators to monitor financing receivables such as quality of collateral, the underlying tenant's credit rating and collection experience. As of December 31, 2015 , the financing receivables were performing as anticipated and there were no significant delinquent amounts outstanding.

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2015
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements The following tables present the Company's assets and liabilities measured at fair value on a recurring basis as of December 31, 2015 and 2014 and non-recurring basis during the year ended December 31, 2015 and 2014 , aggregated by the level in the fair value hierarchy within which those measurements fall: Fair Value Measurements Using Description 2015 (Level 1) (Level 2) (Level 3) Interest rate swap assets $ 4 $ — $ 4 $ — Impaired real estate assets* $ 3,015 $ — $ — $ 3,015 Interest rate swap liabilities $ (1,943 ) $ — $ (1,943 ) $ — *Represents a non-recurring fair value measurement. Fair Value Measurements Using Description 2014 (Level 1) (Level 2) (Level 3) Interest rate swap assets $ 1,153 $ — $ 1,153 $ — Impaired real estate assets* $ 25,679 $ — $ — $ 25,679 Impaired loan receivable* $ 3,296 $ — $ — $ 3,296 Interest rate swap liabilities $ (749 ) $ — $ (749 ) $ — *Represents a non-recurring fair value measurement. The majority of the inputs used to value the Company's interest rate swap asset (liability) fall within Level 2 of the fair value hierarchy, such as observable market interest rate curves; however, the credit valuation associated with the interest rate swap liability utilizes Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by the Company and its counterparties. As of December 31, 2015 and 2014 , the Company determined that the credit valuation adjustment relative to the overall interest rate swap asset (liability) is not significant. As a result, the entire interest rate swap asset (liability) has been classified in Level 2 of the fair value hierarchy. The Company estimates the fair value of its real estate assets, including non-consolidated real estate assets, by using income and market valuation techniques. The Company may estimate fair values using market information such as broker opinions of value, recent sales data for similar assets or discounted cash flow models, which primarily rely on Level 3 inputs. The cash flow models include estimated cash inflows and outflows over a specified holding period. These cash flows may include contractual rental revenues, projected future rental revenues and expenses and forecasted tenant improvements and lease commissions based upon market conditions determined through discussion with local real estate professionals, experience the Company has with its other owned properties in such markets and expectations for growth. Capitalization rates and discount rates utilized in these models are estimated by management based upon rates that management believes to be within a reasonable range of current market rates for the respective properties based upon an analysis of factors such as property and tenant quality, geographical location and local supply and demand observations. To the extent the Company under estimates forecasted cash outflows (tenant improvements, lease commissions and operating costs) or over estimates forecasted cash inflows (rental revenue rates), the estimated fair value of its real estate assets could be overstated. The table below sets forth the carrying amounts and estimated fair values of the Company's financial instruments as of December 31, 2015 and 2014 : As of December 31, 2015 As of December 31, 2014 Carrying Amount Fair Value Carrying Amount Fair Value Assets Loans Receivable $ 95,871 $ 103,014 $ 105,635 $ 105,061 Liabilities Debt $ 2,204,199 $ 2,164,571 $ 2,092,675 $ 2,091,364 The Company estimates the fair values of its loans receivable utilizing Level 3 inputs by using an estimated discounted cash flow analysis consisting of scheduled cash flows and discount rate estimates to approximate those that a willing buyer and seller might use and/or the estimated value of the underlying collateral. The fair value of the Company's debt is primarily estimated utilizing Level 3 inputs by using a discounted cash flow analysis, based upon estimates of market interest rates. The Company determines the fair value of its Senior Notes and 6.00% Convertible Guaranteed Notes using market prices. The inputs used in determining the fair value of these notes are categorized as Level 1 due to the fact that the Company uses quoted market rates to value these instruments. However, the inputs used in determining the fair value could be categorized as Level 2 if trading volumes are low. 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 N

Investment in and Advances to Non-Consolidated Entities	12 Months Ended
	Dec. 31, 2015
Equity Method Investments and Joint Ventures [Abstract]
Investment in and Advances to Non-Consolidated Entities	Investment in and Advances to Non-Consolidated Entities As of December 31, 2015 , the Company had ownership interests ranging from 15% to 40% in certain non-consolidated entities, which primarily own single-tenant net-leased assets. The acquisitions of these assets by the non-consolidated entities were partially funded through non-recourse mortgage debt with an aggregate balance of $47,621 at December 31, 2015 (the Company's proportionate share was $8,591 ) with rates ranging from 3.7% to 4.7% . In 2015, the Company invested $5,613 in the Oklahoma City tenant-in-common. The Company's contribution, together with the other tenant-in-common's contribution, was used to satisfy the related maturing mortgage loan. In November 2014, the Company formed a joint venture to construct a private school in Houston, Texas. As of December 31, 2015 , the Company had a 25% interest in the joint venture. The anticipated total construction cost is $86,491 . The Company is providing construction financing to the joint venture up to $56,686 of which $8,519 has been funded as of December 31, 2015 . Upon completion, the property will be net leased for a 20 -year term. 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. In November 2015, the Company's interest in the joint venture was redeemed in exchange for a distribution to the Company of the fee interest, which is subject to a long-term ground lease with the leaseholder. During 2014 and 2013 , the Company recognized other-than-temporary impairment charges on a non-consolidated joint venture due to changes in the Company's estimate of net proceeds to be received upon liquidation of the joint venture. Accordingly, the Company recognized $930 and $925 , respectively, in impairment charges in equity in earnings (losses) of non-consolidated entities. The underlying property was sold in October 2014 and the Company recognized a gain of $87 in equity in earnings (losses) of non-consolidated entities. LRA earns advisory fees from certain of these non-consolidated entities for services related to acquisitions, asset management and debt placement. Advisory fees earned from these non-consolidated investments were $223 , $348 and $512 for the years ended December 31, 2015 , 2014 and 2013 , respectively.

Mortgages and Notes Payable

Mortgages and Notes Payable	12 Months Ended
	Dec. 31, 2015
Debt Disclosure [Abstract]
Mortgages and Notes Payable	Mortgages and Notes Payable The Company, through property owner subsidiaries, had outstanding mortgages and notes payable of $882,952 and $945,216 as of December 31, 2015 and 2014 , respectively. Interest rates, including imputed rates on mortgages and notes payable, ranged from 2.2% to 7.8% at December 31, 2015 and the mortgages and notes payable mature between 2016 and 2028 . Interest rates, including imputed rates, ranged from 2.2% to 8.5% at December 31, 2014 . The weighted-average interest rate at December 31, 2015 and 2014 was approximately 4.9% and 5.2% , respectively. In September 2015, the Company entered into a new $905,000 unsecured credit agreement with KeyBank National Association as agent, which replaced the Company's existing revolving credit facility and term loans. With lender approval, the Company can increase the size of the new facility to an aggregate $1,810,000 . A summary of the significant terms are as follows: Prior New Prior Current $400,000 Revolving Credit Facility (1) 02/2017 08/2019 LIBOR + 1.15% LIBOR + 1.00% $250,000 Term Loan (2) 02/2018 08/2020 LIBOR + 1.35% LIBOR + 1.10% $255,000 Term Loan (3) 01/2019 01/2021 LIBOR + 1.75% LIBOR + 1.10% (1) Maturity date can be extended to August 2020 at the Company's option. The interest rate ranges from LIBOR plus 0.85% to 1.55% (previously 0.95% to 1.725% ). At December 31, 2015 , the unsecured revolving credit facility had $177,000 outstanding and availability of $223,000 , subject to covenant compliance. (2) The interest rate ranges from LIBOR plus 0.90% to 1.75% (previously 1.10% to 2.10% ). The Company previously entered into aggregate interest-rate swap agreements to fix the LIBOR component at a weighted-average rate of 1.09% through February 2018 on the $250,000 of outstanding LIBOR-based borrowings. (3) The interest rate ranges from LIBOR plus 0.90% to 1.75% (previously 1.50% to 2.25% ). The Company previously entered into aggregate interest-rate swap agreements to fix the LIBOR component at a weighted-average rate of 1.42% through January 2019 on the $255,000 of outstanding LIBOR-based borrowings. The unsecured revolving credit facility and the unsecured term loans are subject to financial covenants, which the Company was in compliance with at December 31, 2015 . Mortgages payable and secured loans are generally collateralized by real estate and the related leases. Certain mortgages payable have yield maintenance or defeasance requirements relating to any prepayments. In addition, certain mortgages are cross-collateralized and cross-defaulted. Scheduled principal and balloon payments for mortgages, including a held for sale property, notes payable, credit facility borrowings and term loans for the next five years and thereafter are as follows: Year ending December 31, Total 2016 $ 139,861 2017 95,505 2018 44,664 2019 283,347 2020 300,756 Thereafter 709,192 $ 1,573,325 Included in the Consolidated Statements of Operations, the Company recognized debt satisfaction gains (charges), net, excluding discontinued operations, of $4,122 , $(7,016) and $(11,811) for the years ended December 31, 2015 , 2014 and 2013 , respectively, due to the satisfaction of mortgages and notes payable other than those disclosed elsewhere in these financial statements. In addition, the Company capitalized $6,062 , $3,441 and $2,397 in interest, including discontinued operations, for the years ended 2015 , 2014 and 2013 , respectively. Senior Notes, Convertible Notes and Trust Preferred Securities The Company had the following Senior Notes outstanding as of December 31, 2015 : Issue Date Face Amount Interest Rate Maturity Date Issue Price May 2014 $ 250,000 4.40 % June 2024 99.883 % June 2013 250,000 4.25 % June 2023 99.026 % $ 500,000 Each series of the Senior Notes is unsecured and pays interest semi-annually in arrears. 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. During 2010, the Company issued $115,000 aggregate principal amount of 6.00% Convertible Guaranteed Notes. The notes pay interest semi-annually in arrears and mature in January 2030 . The holders of the notes may require the Company to repurchase their notes in January 2017 , January 2020 and January 2025 for cash equal to 100% of the notes to be repurchased, plus any accrued and unpaid interest. The Company may not redeem any notes prior to January 2017 , except to preserve its REIT status. As of the date of filing this Annual Report, the notes have a conversion rate of 156.5514 common shares per one thousand principal amount of the notes, representing a conversion price of approximately $6.39 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 2015 , 2014 and 2013 , $3,828 , $12,763 and $54,905 aggregate principal amount of the notes were converted for 519,664 , 1,904,542 and 7,944,673 common shares and an aggregate cash payment of $529 , $233 and $3,270 plus accrued and unpaid interest, respectively. The Company recognized aggregate debt satisfaction charges of $476 , $2,436 and $13,536 , during 2015 , 2014 and 2013 , respectively, relating to the conversions. Below is a summary of additional disclosures related to the 6.00% Convertible Guaranteed Notes. 6.00% Convertible Guaranteed Notes Balance Sheets: December 31, 2015 December 31, 2014 Principal amount of debt component $ 12,400 $ 16,228 Unamortized discount (220 ) (564 ) Carrying amount of debt component $ 12,180 $ 15,664 Carrying amount of equity component $ (34,784 ) $ (33,160 ) Effective interest rate 7.8 % 8.1 % Period through which discount is being amortized, put date 01/2017 01/2017 Aggregate if-converted value in excess of aggregate principal amount $ 2,863 $ 10,432 Statements of Operations: 2015 2014 2013 6.00% Convertible Guaranteed Notes Coupon interest $ 765 $ 1,545 $ 2,296 Discount amortization 228 438 658 $ 993 $ 1,983 $ 2,954 LCIF guarantees the obligations of the Company under the Senior Notes and the 6.00% Convertible Guaranteed Notes. During 2007, the Company issued $200,000 original principal amount of Trust Preferred Securities. The Trust Preferred Securities, which are classified as debt, are due in 2037 , were open for redemption at the Company's option commencing April 2012 and bear interest at a fixed rate of 6.804% through April 2017 and thereafter, at a variable rate of three month LIBOR plus 170 basis points through maturity. As of December 31, 2015 and 2014 , there was $129,120 original principal amount of Trust Preferred Securities outstanding. Scheduled principal payments for these debt instruments for the next five years and thereafter are as follows: Year ending December 31, Total 2016 $ — 2017 (1) 12,400 2018 — 2019 — 2020 — Thereafter 629,120 641,520 Debt discounts (2,273 ) $ 639,247 (1) Although the 6.00% Convertible Guaranteed Notes mature in 2030, the notes can be put to the Company in 2017.

Senior Notes, Convertible Notes

Senior Notes, Convertible Notes and Trust Preferred Securities	12 Months Ended
	Dec. 31, 2015
Debt Disclosure [Abstract]
Senior Notes, Convertible Notes, Exchangeable Notes and Trust Preferred Securities	Mortgages and Notes Payable The Company, through property owner subsidiaries, had outstanding mortgages and notes payable of $882,952 and $945,216 as of December 31, 2015 and 2014 , respectively. Interest rates, including imputed rates on mortgages and notes payable, ranged from 2.2% to 7.8% at December 31, 2015 and the mortgages and notes payable mature between 2016 and 2028 . Interest rates, including imputed rates, ranged from 2.2% to 8.5% at December 31, 2014 . The weighted-average interest rate at December 31, 2015 and 2014 was approximately 4.9% and 5.2% , respectively. In September 2015, the Company entered into a new $905,000 unsecured credit agreement with KeyBank National Association as agent, which replaced the Company's existing revolving credit facility and term loans. With lender approval, the Company can increase the size of the new facility to an aggregate $1,810,000 . A summary of the significant terms are as follows: Prior New Prior Current $400,000 Revolving Credit Facility (1) 02/2017 08/2019 LIBOR + 1.15% LIBOR + 1.00% $250,000 Term Loan (2) 02/2018 08/2020 LIBOR + 1.35% LIBOR + 1.10% $255,000 Term Loan (3) 01/2019 01/2021 LIBOR + 1.75% LIBOR + 1.10% (1) Maturity date can be extended to August 2020 at the Company's option. The interest rate ranges from LIBOR plus 0.85% to 1.55% (previously 0.95% to 1.725% ). At December 31, 2015 , the unsecured revolving credit facility had $177,000 outstanding and availability of $223,000 , subject to covenant compliance. (2) The interest rate ranges from LIBOR plus 0.90% to 1.75% (previously 1.10% to 2.10% ). The Company previously entered into aggregate interest-rate swap agreements to fix the LIBOR component at a weighted-average rate of 1.09% through February 2018 on the $250,000 of outstanding LIBOR-based borrowings. (3) The interest rate ranges from LIBOR plus 0.90% to 1.75% (previously 1.50% to 2.25% ). The Company previously entered into aggregate interest-rate swap agreements to fix the LIBOR component at a weighted-average rate of 1.42% through January 2019 on the $255,000 of outstanding LIBOR-based borrowings. The unsecured revolving credit facility and the unsecured term loans are subject to financial covenants, which the Company was in compliance with at December 31, 2015 . Mortgages payable and secured loans are generally collateralized by real estate and the related leases. Certain mortgages payable have yield maintenance or defeasance requirements relating to any prepayments. In addition, certain mortgages are cross-collateralized and cross-defaulted. Scheduled principal and balloon payments for mortgages, including a held for sale property, notes payable, credit facility borrowings and term loans for the next five years and thereafter are as follows: Year ending December 31, Total 2016 $ 139,861 2017 95,505 2018 44,664 2019 283,347 2020 300,756 Thereafter 709,192 $ 1,573,325 Included in the Consolidated Statements of Operations, the Company recognized debt satisfaction gains (charges), net, excluding discontinued operations, of $4,122 , $(7,016) and $(11,811) for the years ended December 31, 2015 , 2014 and 2013 , respectively, due to the satisfaction of mortgages and notes payable other than those disclosed elsewhere in these financial statements. In addition, the Company capitalized $6,062 , $3,441 and $2,397 in interest, including discontinued operations, for the years ended 2015 , 2014 and 2013 , respectively. Senior Notes, Convertible Notes and Trust Preferred Securities The Company had the following Senior Notes outstanding as of December 31, 2015 : Issue Date Face Amount Interest Rate Maturity Date Issue Price May 2014 $ 250,000 4.40 % June 2024 99.883 % June 2013 250,000 4.25 % June 2023 99.026 % $ 500,000 Each series of the Senior Notes is unsecured and pays interest semi-annually in arrears. 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. During 2010, the Company issued $115,000 aggregate principal amount of 6.00% Convertible Guaranteed Notes. The notes pay interest semi-annually in arrears and mature in January 2030 . The holders of the notes may require the Company to repurchase their notes in January 2017 , January 2020 and January 2025 for cash equal to 100% of the notes to be repurchased, plus any accrued and unpaid interest. The Company may not redeem any notes prior to January 2017 , except to preserve its REIT status. As of the date of filing this Annual Report, the notes have a conversion rate of 156.5514 common shares per one thousand principal amount of the notes, representing a conversion price of approximately $6.39 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 2015 , 2014 and 2013 , $3,828 , $12,763 and $54,905 aggregate principal amount of the notes were converted for 519,664 , 1,904,542 and 7,944,673 common shares and an aggregate cash payment of $529 , $233 and $3,270 plus accrued and unpaid interest, respectively. The Company recognized aggregate debt satisfaction charges of $476 , $2,436 and $13,536 , during 2015 , 2014 and 2013 , respectively, relating to the conversions. Below is a summary of additional disclosures related to the 6.00% Convertible Guaranteed Notes. 6.00% Convertible Guaranteed Notes Balance Sheets: December 31, 2015 December 31, 2014 Principal amount of debt component $ 12,400 $ 16,228 Unamortized discount (220 ) (564 ) Carrying amount of debt component $ 12,180 $ 15,664 Carrying amount of equity component $ (34,784 ) $ (33,160 ) Effective interest rate 7.8 % 8.1 % Period through which discount is being amortized, put date 01/2017 01/2017 Aggregate if-converted value in excess of aggregate principal amount $ 2,863 $ 10,432 Statements of Operations: 2015 2014 2013 6.00% Convertible Guaranteed Notes Coupon interest $ 765 $ 1,545 $ 2,296 Discount amortization 228 438 658 $ 993 $ 1,983 $ 2,954 LCIF guarantees the obligations of the Company under the Senior Notes and the 6.00% Convertible Guaranteed Notes. During 2007, the Company issued $200,000 original principal amount of Trust Preferred Securities. The Trust Preferred Securities, which are classified as debt, are due in 2037 , were open for redemption at the Company's option commencing April 2012 and bear interest at a fixed rate of 6.804% through April 2017 and thereafter, at a variable rate of three month LIBOR plus 170 basis points through maturity. As of December 31, 2015 and 2014 , there was $129,120 original principal amount of Trust Preferred Securities outstanding. Scheduled principal payments for these debt instruments for the next five years and thereafter are as follows: Year ending December 31, Total 2016 $ — 2017 (1) 12,400 2018 — 2019 — 2020 — Thereafter 629,120 641,520 Debt discounts (2,273 ) $ 639,247 (1) Although the 6.00% Convertible Guaranteed Notes mature in 2030, the notes can be put to the Company in 2017.

Derivatives and Hedging Activit

Derivatives and Hedging Activities	12 Months Ended
	Dec. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives and Hedging Activities	Derivatives and Hedging Activities Risk Management Objective of Using Derivatives . The Company is exposed to certain risks arising from both its business operations and economic conditions. The Company principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. The Company manages economic risks, including interest rate, liquidity, and credit risk primarily by managing the type, amount, sources, and duration of its debt funding and the use of derivative financial instruments. Specifically, the Company enters into derivative financial instruments to manage exposures that arise from business activities that result in the receipt or payment of future known and uncertain cash amounts, the value of which are determined by interest rates. The Company's derivative financial instruments are used to manage differences in the amount, timing, and duration of the Company's known or expected cash receipts and its known or expected cash payments principally related to the Company's investments and borrowings. Cash Flow Hedges of Interest Rate Risk . The Company's objectives in using interest rate derivatives are to add stability to interest expense, to manage its exposure to interest rate movements and therefore manage its cash outflows as it relates to the underlying debt instruments. To accomplish these objectives the Company primarily uses interest rate swaps as part of its interest rate risk management strategy relating to certain of its variable rate debt instruments. Interest rate swaps designated as cash flow hedges involve the receipt of variable-rate amounts from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount. The effective portion of changes in the fair value of derivatives designated and that qualify as cash flow hedges is recorded in accumulated other comprehensive income (loss) and is subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. The ineffective portion of the change in fair value of the derivatives is recognized directly in earnings. The Company has designated the interest rate swap agreements with its counterparties as cash flow hedges of the risk of variability attributable to changes in the LIBOR swap rates on $505,000 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. During 2015, the Company extended the maturity date of the $505,000 of LIBOR-indexed variable-rate unsecured term loans to August 2020 ( $250,000 ) and January 2021 ( $255,000 ). The extension of these term loans had no impact on the effectiveness of the corresponding cash flow hedges. In 2012, the Company settled the 2008 interest rate swap agreement with KeyBank for $3,539 . The Company had a credit balance of $1,837 in accumulated other comprehensive income at the settlement date which was amortized into earnings on a straight-line basis through February 2013. Amounts reported in accumulated other comprehensive income (loss) related to derivatives will be reclassified to interest expense as interest payments are made on the aggregate $505,000 term loans. During the next 12 months, the Company estimates that an additional $2,928 will be reclassified as an increase to interest expense if the swaps remain outstanding. As of December 31, 2015 , 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 10 $505,000 The table below presents the fair value of the Company's derivative financial instruments as well as their classification on the Consolidated Balance Sheets as of December 31, 2015 and 2014 . As of December 31, 2015 As of December 31, 2014 Balance Sheet Location Fair Value Balance Sheet Location Fair Value Derivatives designated as hedging instruments: Interest Rate Swap Asset Other Assets $ 4 Other Assets $ 1,153 Interest Rate Swap Liability Accounts Payable and Other Liabilities $ (1,943 ) Accounts Payable and Other Liabilities $ (749 ) The tables below present the effect of the Company's derivative financial instruments on the Consolidated Statements of Operations for 2015 and 2014 : Derivatives in Cash Flow Amount of Loss Recognized Location of Loss Reclassified from Accumulated OCI into Income (Effective Portion) Amount of Loss Reclassified Hedging Relationships 2015 2014 2015 2014 Interest Rate Swap $ (7,809 ) $ (9,560 ) Interest expense $ 5,466 $ 5,525 The Company's agreements with the swap derivative counterparties contain provisions whereby if the Company defaults on the underlying indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender, then the Company could also be declared in default of the swap derivative obligation. As of December 31, 2015 , the Company had not posted any collateral related to the agreements.

Leases

Leases	12 Months Ended
	Dec. 31, 2015
Leases [Abstract]
Leases	Leases Lessor: Minimum future rental receipts under the non-cancelable portion of tenant leases, assuming no new or re-negotiated leases, for the next five years and thereafter are as follows: Year ending December 31, Total 2016 $ 347,551 2017 328,659 2018 310,051 2019 282,296 2020 249,528 Thereafter 6,654,870 $ 8,172,955 The above minimum lease payments do not include reimbursements to be received from tenants for certain operating expenses and real estate taxes and do not include early termination payments provided for in certain leases. Certain leases allow for the tenant to terminate the lease if the property is deemed obsolete, as defined, and upon payment of a termination fee to the landlord, as stipulated in the lease. In addition, certain leases provide the tenant with the right to purchase the leased property at fair market value or a stipulated price. Lessee: The Company holds, through property owner subsidiaries, leasehold interests in various properties. Generally, the ground rents on these properties are either paid directly by the tenants to the fee holder or reimbursed to the Company as additional rent. Certain properties are economically owned through the holding of industrial revenue bonds and as such neither ground lease payments nor bond debt service payments are made or received, respectively. For certain of these properties, the Company has an option to purchase the fee interest. Minimum future rental payments under non-cancelable leasehold interests, excluding leases held through industrial revenue bonds and lease payments in the future that are based upon fair market value, for the next five years and thereafter are as follows: Year ending December 31, Total 2016 $ 5,032 2017 4,987 2018 4,819 2019 4,313 2020 4,306 Thereafter 34,346 $ 57,803 Rent expense for the leasehold interests, including discontinued operations, was $868 , $919 and $1,284 in 2015 , 2014 and 2013 , respectively. The Company leases its corporate headquarters. The lease expires March 2026. The Company is responsible for its proportionate share of operating expenses and real estate taxes above a base year. In addition, the Company leases office space for its regional offices. The minimum lease payments for the Company's offices are $467 for 2016 , $1,243 for 2017 , $1,224 for 2018 , $1,224 for 2019 and $1,224 for 2020 and $6,795 thereafter. Rent expense for 2015 , 2014 and 2013 was $1,435 , $1,356 and $1,338 , respectively.

Concentration of Risk

Concentration of Risk	12 Months Ended
	Dec. 31, 2015
Risks and Uncertainties [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 years ended December 31, 2015 , 2014 and 2013 , no single tenant represented greater than 10% of rental revenues. Cash and cash equivalent balances at certain institutions may exceed insurable amounts. The Company believes it mitigates this risk by investing in or through major financial institutions.

Equity

Equity	12 Months Ended
	Dec. 31, 2015
Equity [Abstract]
Equity	Equity Shareholders' Equity: During 2015 , 2014 and 2013 , the Company issued 2,266,191 , 2,600,795 and 36,012,313 common shares, respectively, through public offerings (only in 2013) and under its direct share purchase plan, which includes a dividend reinvestment component, raising net proceeds of approximately $20,797 , $25,813 and $399,566 respectively. During 2013, the Company implemented an At-The-Market offering program under which the Company may issue up to $100,000 in common shares over the term of this program. The Company issued 3,409,927 common shares under this program during 2013 and generated aggregate gross proceeds of $36,884 . No shares were sold under this program in 2015 or 2014 . The proceeds from these issuances were primarily used for general working capital, to fund investments and retire indebtedness. The Company had 1,935,400 shares of Series C Cumulative Convertible Preferred Stock (“Series C Preferred”), outstanding at December 31, 2015 . The shares have a dividend of $3.25 per share per annum, have a liquidation preference of $96,770 , and the Company, if certain common share prices are achieved, can force conversion into common shares of the Company. As of December 31, 2015 , each share is currently convertible into 2.4339 common shares. This conversion ratio may increase over time if the Company's common share dividend exceeds certain quarterly thresholds. If certain fundamental changes occur, holders may require the Company, in certain circumstances, to repurchase all or part of their shares of Series C Preferred. In addition, upon the occurrence of certain fundamental changes, the Company will, under certain circumstances, increase the conversion rate by a number of additional common shares or, in lieu thereof, may in certain circumstances elect to adjust the conversion rate upon the shares of Series C Preferred becoming convertible into shares of the public acquiring or surviving company. The Company may, at the Company's option, cause shares of Series C Preferred to be automatically converted into that number of common shares that are issuable at the then prevailing conversion rate. The Company may exercise its conversion right only if, at certain times, the closing price of the Company's common shares equals or exceeds 125% of the then prevailing conversion price of the Series C Preferred. Investors in shares of Series C Preferred generally have no voting rights, but will have limited voting rights if the Company fails to pay dividends for six or more quarters and under certain other circumstances. Upon conversion, the Company may choose to deliver the conversion value to investors in cash, common shares, or a combination of cash and common shares. During 2015 , 2014 and 2013 , the Company issued 860,730 , 37,678 and 1,893,409 of its common shares, respectively, to certain employees and trustees. Typically, trustee share grants vest immediately. Employee share grants generally vest ratably, on anniversaries of the grant date, however, in certain situations vesting is cliff-based after a specific number of years and/or subject to meeting certain performance criteria (see note 16). In July 2015, the Company's Board of Trustees authorized the repurchase of up to 10,000,000 common shares. This share repurchase program has no expiration date. During 2015, the Company repurchased 2,216,799 common shares at an average price of $8.29 per common share under this share repurchase program. During 2013, the Company redeemed and retired the following shares of its preferred stock: 2013 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 cost and historical GAAP cost. Accordingly, net income was adjusted for the deemed dividends to arrive at net income (loss) attributable to common shareholders. Accumulated other comprehensive income (loss) as of December 31, 2015 and 2014 represented $(1,939) and $404 , respectively, of unrealized gain on interest rate swaps, net. Changes in Accumulated Other Comprehensive Income (Loss) Gains and Losses on Cash Flow Hedges Balance December 31, 2014 $ 404 Other comprehensive loss before reclassifications (7,809 ) Amounts of loss reclassified from accumulated other comprehensive income to interest expense 5,466 Balance December 31, 2015 $ (1,939 ) 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 2014, in connection with the merger of LCIF II with and into LCIF, former LCIF II partners representing 170,193 OP units elected or were deemed to elect to receive $1,962 in aggregate cash for such OP units. During 2015 , 2014 and 2013 , 32,780 , 29,086 and 202,241 common shares, respectively, were issued by the Company, in connection with OP unit redemptions, for an aggregate value of $165 , $148 and $1,053 , respectively. As of December 31, 2015 , there were approximately 3,393,000 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 2015 2014 2013 Net income attributable to Lexington Realty Trust shareholders $ 111,703 $ 93,104 $ 1,630 Transfers from noncontrolling interests: Increase (decrease) in additional paid-in-capital for redemption of noncontrolling OP units 165 (858 ) 1,053 Change from net income attributable to shareholders and transfers from noncontrolling interests $ 111,868 $ 92,246 $ 2,683 In July 2015 and 2014, the Company acquired a consolidated joint venture partner's interest in an office property in Philadelphia, Pennsylvania for $4,022 and $2,100 , respectively, raising the Company's equity ownership in the office property to 100.0% . 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.

Benefit Plans

Benefit Plans	12 Months Ended
	Dec. 31, 2015
Employee Benefits and Share-based Compensation [Abstract]
Benefit Plans	Benefit Plans The Company maintains an equity award plan pursuant to which qualified and non-qualified options may be issued. No common share options were issued in 2015 , 2014 and 2013 . The Company granted 1,248,501 , 1,265,500 and 2,000,000 common share options on December 31, 2010 (“2010 options”), January 8, 2010 (“2009 options”) and December 31, 2008 (“2008 options”), respectively, at an exercise price of $7.95 , $6.39 and $5.60 , respectively. The 2010 options (1) vested 20% annually on each December 31, 2011 through 2015 and (2) terminate on the earlier of (x) six months of termination of service with the Company and (y) December 31, 2020. The 2009 options (1) vested 20% annually on each December 31, 2010 through 2014 and (2) terminate on the earlier of (x) six months of termination of service with the Company and (y) December 31, 2019. The 2008 options (1) vested 50% following a 20 -day trading period where the average closing price of a common share of the Company on the New York Stock Exchange (“NYSE”) was $8.00 or higher and vested 50% following a 20 -day trading period where the average closing price of a common share of the Company on the NYSE was $10.00 or higher, and (2) terminate on the earlier of (x) termination of service with the Company or (y) December 31, 2018. As a result of the share dividends paid in 2009, each of the 2008 options is exchangeable for approximately 1.13 common shares at an exercise price of $4.97 per common share. The Company engaged third parties to value the options as of each option's respective grant date. The third parties determined the value to be $2,422 and $2,771 for the 2010 options and 2009 options, respectively, using the Black-Scholes model and $2,480 for the 2008 options using the Monte Carlo model. The options are considered equity awards as they are settled through the issuance of common shares. As such, the options were valued as of the grant date and do not require subsequent remeasurement. There were several assumptions used to fair value the options including the expected volatility in the Company's common share price based upon the fluctuation in the Company's historical common share price. The more significant assumptions underlying the determination of fair value for options granted were as follows: 2010 Options 2009 Options 2008 Options Weighted-average fair value of options granted $ 1.94 $ 2.19 $ 1.24 Weighted-average risk-free interest rate 2.54 % 3.29 % 1.33 % Weighted-average expected option lives (in years) 6.50 6.70 3.60 Weighted-average expected volatility 49.00 % 59.08 % 59.94 % Weighted-average expected dividend yield 7.40 % 6.26 % 14.40 % The Company recognized compensation expense relating to these options over an average of 5.0 years for the 2010 options and 2009 options and 3.6 years for the 2008 options. The Company recognized $480 , $1,038 and $1,037 in compensation expense in 2015 , 2014 and 2013 respectively. The Company does not have any unrecognized compensation costs relating to the outstanding options as of December 31, 2015 . The intrinsic value of an option is the amount by which the market value of the underlying common share at the date the option is exercised exceeds the exercise price of the option. No options were exercised in 2015 and the total intrinsic value of options exercised for the years ended December 31, 2014 and 2013 were $2,780 and $8,607 , respectively. Share option activity during the years indicated is as follows: Number of Shares Weighted-Average Exercise Price Per Share Balance at December 31, 2012 3,480,080 $ 6.44 Exercised (1,519,179 ) 5.77 Forfeited (5,200 ) 7.47 Balance at December 31, 2013 1,955,701 6.95 Exercised (594,791 ) 6.71 Forfeited (10,500 ) 7.46 Balance at December 31, 2014 and 2015 1,350,410 $ 7.05 As of December 31, 2015 , the aggregate intrinsic value of options that were outstanding and exercisable was $1,277 . Non-vested share activity for the years ended December 31, 2015 and 2014 , is as follows: Number of Shares Weighted-Average Value Per Share Balance at December 31, 2013 2,521,046 $ 10.46 Vested (537,003 ) 9.16 Forfeited (13,658 ) 9.96 Balance at December 31, 2014 1,970,385 10.82 Granted 812,679 7.70 Vested (413,714 ) 11.95 Balance at December 31, 2015 2,369,350 $ 9.55 During 2015 , the Company granted to certain executive officers performance-based shares, which vest based on the Company’s total shareholder return growth after a three -year measurement period relative to an index ( 321,018 shares) and its peers ( 321,011 shares). Dividends will not be paid on these grants until earned. Once the performance criteria are met and the actual number of shares earned is determined, such shares vest immediately. The fair value of the grants was determined at the grant date using a multifactor Monte Carlo simulation model. In addition, during 2015 , the Company granted 170,650 non-vested common shares to certain employees which vest ratably over a three -year service period. Compensation expense is recognized over the requisite service period for all grants. As of December 31, 2015 , of the remaining 2,369,350 non-vested shares, 1,720,824 are subject to time-based vesting and 648,526 are subject to performance-based vesting. At December 31, 2015 , there are 3,320,961 awards available for grant. The Company has $13,707 in unrecognized compensation costs relating to the non-vested shares that will be charged to compensation expense over an average of approximately 3.3 years. The Company has established a trust for certain officers in which vested common shares granted for the benefit of the officers are deposited. The officers exert no control over the common shares in the trust and the common shares are available to the general creditors of the Company. As of December 31, 2015 and 2014 , there were 427,531 common shares in the trust. The Company sponsors a 401(k) retirement savings plan covering all eligible employees. The Company makes a discretionary matching contribution on a portion of employee participant salaries and, based on its profitability, may make an additional discretionary contribution at each fiscal year end to all eligible employees. These discretionary contributions are subject to vesting under a schedule providing for 25% annual vesting starting with the first year of employment and 100% vesting after four years of employment. Approximately $333 , $299 and $298 of contributions are applicable to 2015 , 2014 and 2013 , respectively. During 2015 , 2014 and 2013 , the Company recognized $8,201 , $7,550 and $7,145 , respectively, in expense relating to scheduled vesting and issuance of common share grants.

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2015
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions The Company has an indemnity obligation to Vornado Realty Trust, one of its significant shareholders, with respect to actions by the Company that affect Vornado Realty Trust's status as a REIT. All related party acquisitions, sales and loans were approved by the independent members of the Company's Board of Trustees or the Audit Committee. The Company leases certain properties to entities in which Vornado Realty Trust, a significant shareholder, has an interest. During 2015 , 2014 and 2013 , the Company recognized $255 , $255 and $744 , respectively, in rental revenue, including discontinued operations, from these properties. The Company leases its corporate office from an affiliate of Vornado Realty Trust. Rent expense for this property was $1,323 , $1,252 and $1,225 in 2015 , 2014 and 2013 , respectively. In connection with efforts, on a non-binding basis, to procure non-recourse mezzanine financing from an affiliate of the Company's Chairman, pursuant to the terms of the EB-5 visa program administered by the United States Citizenship and Immigration Services (“USCIS”), for a joint venture investment in Houston, Texas, in which the Company has an investment, the Company executed a guaranty in favor of an affiliate of its Chairman. The guaranty provides that the Company will reimburse investors providing the funds for such financing if the following occurs: (1) the joint venture receives such funds, (2) the USCIS denies the financing solely because the project is not permitted under the EB-5 visa program, and (3) the joint venture fails to return such funds. As of December 31, 2015 , the joint venture has not received any such funds and the Company has not recorded any liability as it relates to this guaranty. The maximum amount of funds that would be subject to the guaranty obligation is $18,000 . In addition, in connection with efforts, on a non-binding basis, to procure non-recourse mezzanine financing from an affiliate of the Company's Chairman, pursuant to the terms of the EB-5 visa program administered by the USCIS, for an investment in Charlotte, North Carolina, the Company agreed to reimburse the Chairman's affiliate up to approximately $7 for its expenses.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The provision for income taxes relates primarily to the taxable income of the Company's taxable REIT subsidiaries. The earnings, other than in taxable REIT subsidiaries, of the Company are not generally subject to federal income taxes at the Company level due to the REIT election made by the Company. Income taxes have been provided for on the asset and liability method. Under the asset and liability method, deferred income taxes are recognized for the temporary differences between the financial reporting basis and the tax basis of assets and liabilities. The Company's provision for income taxes for the years ended December 31, 2015 , 2014 and 2013 is summarized as follows: 2015 2014 2013 Current: Federal $ — $ 145 $ (1,445 ) State and local (645 ) (1,130 ) (1,593 ) NOL utilized — — 586 Deferred: Federal 59 (91 ) (595 ) State and local 18 (33 ) (130 ) $ (568 ) $ (1,109 ) $ (3,177 ) Net deferred tax assets (liabilities) of $59 and $(19) are included in other assets (liabilities) on the accompanying Consolidated Balance Sheets at December 31, 2015 and 2014 , respectively. These net deferred tax assets (liabilities) relate primarily to differences in the timing of the recognition of income (loss) between GAAP and tax and net operating loss carry forwards. The income tax provision differs from the amount computed by applying the statutory federal income tax rate to pre-tax operating income as follows: 2015 2014 2013 Federal provision at statutory tax rate (34%) $ 65 $ (43 ) $ 164 State and local taxes, net of federal benefit 12 (9 ) 22 Other (645 ) (1,057 ) (3,363 ) $ (568 ) $ (1,109 ) $ (3,177 ) For the years ended December 31, 2015 , 2014 and 2013 , the “other” amount is comprised primarily of state franchise taxes of $679 , $1,183 and $1,280 , respectively, the write-off of deferred tax liabilities (asset) of $0 , $0 and $(150) , respectively, and permanent differences of $0 , $0 , and $1,936 , respectively, relating to the transfer of certain assets of the Company's taxable subsidiaries. As of December 31, 2015 and 2014 , the Company had estimated net operating loss carry forwards for income tax reporting purposes of $146 and $0 , respectively, which will begin to expire in tax year 2035. A summary of the average taxable nature of the Company's common dividends for each of the years in the three-year period ended December 31, 2015 , is as follows: 2015 2014 2013 Total dividends per share $ 0.68 $ 0.67 $ 0.60 Ordinary income 63.07 % 49.44 % 35.53 % Qualifying dividend — 0.05 % 4.11 % Capital gain — — 2.09 % Return of capital 36.93 % 50.51 % 58.27 % 100.00 % 100.00 % 100.00 % A summary of the average taxable nature of the Company's dividend on shares of its Series C Preferred for each of the years in the three-year period ended December 31, 2015 , is as follows: 2015 2014 2013 Total dividends per share $ 3.25 $ 3.25 $ 3.25 Ordinary income 100.00 % 99.90 % 85.14 % Qualifying dividend — 0.10 % 9.85 % Capital gain — — 5.01 % Return of capital — — — % 100.00 % 100.00 % 100.00 % A summary of the average taxable nature of the Company's dividend on shares of its Series D Cumulative Redeemable Preferred Stock for the years in the three-year period ended December 31, 2015 , is as follows: 2015 2014 2013 Total dividends per share $ — $ — $ 1.043368 Ordinary income — — 85.14 % Qualifying dividend — — 9.85 % Capital gain — — 5.01 % Return of capital — — — % — — 100.00 %

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies In addition to the commitments and contingencies disclosed elsewhere, the Company has the following commitments and contingencies. The Company is obligated under certain tenant leases, including its proportionate share for leases for non-consolidated entities, to fund the expansion of the underlying leased properties. The Company, under certain circumstances, may guarantee to tenants the completion of base building improvements and the payment of tenant improvement allowances and lease commissions on behalf of its subsidiaries. From time to time, the Company is directly or indirectly involved in legal proceedings arising in the ordinary course of business. Management believes, based on currently available information, and after consultation with legal counsel, that although the outcomes of those normal course proceedings are uncertain, the results of such proceedings, in the aggregate, will not have a material adverse effect on the Company's business, financial condition and results of operations. GSMSC II 2006-GG6 Bridgewater Hills Corporate Center, LLC v. Lexington Realty Trust (Supreme Court of the State of New York, County of New York-Index No. 653117/2015) On September 16, 2015, GSMSC II 2006-GG6 Bridgewater Hills Corporate Center, LLC commenced an action as lender against the Company based on a limited guaranty of recourse obligations executed by a predecessor entity of the Company in connection with a mortgage loan secured by a property owner subsidiary's commercial property in Bridgewater, New Jersey. The property owner subsidiary defaulted due to non-payment after the sole tenant vacated at the end of the lease term. The lender seeks approximately $15,500 in order to satisfy the outstanding amount of the loan, plus reasonable attorney’s fees and other costs and disbursements related thereto. The lender claims that the Company's limited guaranty was triggered due to the merger of Newkirk Realty Trust, Inc. and Lexington Corporate Properties Trust on December 31, 2006, arguing that it constituted an event of default because it was a transfer that was not permitted by the loan agreement. The Company intends to vigorously defend the lender’s claim. The Company filed a motion to dismiss on October 19, 2015 and a hearing is scheduled for March 16, 2016. Other . Four of our executive officers have employment contracts and are entitled to severance benefits upon termination by the Company without cause or termination by the executive officer with good reason, in each case, as defined in the employment contract.

Supplemental Disclosure of Stat

Supplemental Disclosure of Statement of Cash Flow Information	12 Months Ended
	Dec. 31, 2015
Supplemental 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 2015 , 2014 and 2013 , the Company paid $88,725 , $100,080 and $92,788 , respectively, for interest and $741 , $859 and $4,666 , respectively, for income taxes. During 2015 , 2014 and 2013 , the Company sold its interests in certain properties, which included the assumption of the related non-recourse mortgage debt in the aggregate amount of $55,000 , $30,140 and $40,356 , respectively. In addition, during 2015, 2014 and 2013, the Company conveyed its interests in certain properties to its lenders in full satisfaction of the $47,528 , $9,900 and $49,510 , respectively, non-recourse mortgage notes payable.

Unaudited Quarterly Financial D

Unaudited Quarterly Financial Data	12 Months Ended
	Dec. 31, 2015
Quarterly Financial Information Disclosure [Abstract]
Unaudited Quarterly Financial Data	Unaudited Quarterly Financial Data 2015 3/31/2015 6/30/2015 9/30/2015 12/31/2015 Total gross revenues $ 108,442 $ 110,333 $ 105,438 $ 106,626 Net income (loss) $ 34,371 $ 50,207 $ (5,200 ) $ 35,513 Net income (loss) attributable to common shareholders $ 31,829 $ 47,654 $ (7,629 ) $ 33,229 Net income (loss) attributable to common shareholders - basic per share $ 0.14 $ 0.20 $ (0.03 ) $ 0.14 Net income (loss) attributable to common shareholders - diluted per share $ 0.14 $ 0.20 $ (0.03 ) $ 0.14 2014 3/31/2014 6/30/2014 9/30/2014 12/31/2014 Total gross revenues(1) $ 104,016 $ 105,447 $ 106,572 $ 107,783 Net income $ 1,814 $ 15,287 $ 42,177 $ 38,185 Net income (loss) attributable to common shareholders $ (839 ) $ 12,743 $ 38,720 $ 35,700 Net income (loss) attributable to common shareholders - basic per share $ — $ 0.05 $ 0.17 $ 0.15 Net income (loss) attributable to common shareholders - diluted per share $ — $ 0.05 $ 0.17 $ 0.15 _____________ (1) All periods have been adjusted to reflect the impact of properties sold during the years ended December 31, 2014 , and properties classified as held for sale as of December 31, 2014 , which are reflected in discontinued operations in the Consolidated Statements of Operations. The sum of the quarterly income (loss) attributable to common shareholders and per common share amounts may not equal the full year amounts primarily because the computations of amounts allocated to participating securities and the weighted-average number of common shares of the Company outstanding for each quarter and the full year are made independently.

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2015
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Subsequent to December 31, 2015 and in addition to disclosures elsewhere in the financial statements, the Company: • acquired an industrial property in Detroit, Michigan for $29,680 . The property is net leased for a 20 -year term; • repurchased 951,792 common shares at an average price of $7.48 per share; • received $6,681 in connection with the sale of a non-consolidated office property in Russellville, Arkansas; and • obtained $57,500 15 -year non-recourse financing, which bears interest at a 5.2% fixed interest rate and is secured by the Richmond, Virginia property.

Schedule III - Real Estate and

Schedule III - Real Estate and Accumulated Depreciation and Amortization	12 Months Ended
	Dec. 31, 2015
SEC Schedule III, Real Estate and Accumulated Depreciation Disclosure [Abstract]
Real Estate and Accumulated Depreciation Disclosure	Description Location Encumbrances Land and Land Estates Buildings and Improvements Total Accumulated Depreciation and Amortization Date Acquired Date Constructed Useful life computing depreciation in latest income statement (years) Office Little Rock, AR $ — $ 1,353 $ 2,260 $ 3,613 $ 545 Dec-06 1980 40 Office Pine Bluff, AR — 271 603 874 228 Sep-12 1964/1972/ 1988 3, 4 & 13 Office Glendale, AZ — 9,418 8,394 17,812 2,202 Sep-12 1986/1997/ 2000 7, 10, 20 & 24 Office Phoenix, AZ — 5,585 36,923 42,508 3,278 Dec-12 1986/2007 10, 15, 17, & 40 Office Phoenix, AZ — 4,666 24,856 29,522 9,515 May-00 1997 6, 9 & 40 Office Tempe, AZ — — 13,086 13,086 1,505 Sep-12 1998 5, 7, 10, 11, 15 & 36 Office Tempe, AZ 7,185 — 9,442 9,442 2,884 Dec-05 1998 30 & 40 Office Tucson, AZ — 681 4,037 4,718 580 Sep-12 1988 7, 10 & 30 Office Lake Forest, CA — 3,442 13,769 17,211 4,747 Mar-02 2001 40 Office Los Angeles, CA — 5,110 12,158 17,268 7,250 Dec-04 2000 10, 13 & 40 Office Palo Alto, CA 48,512 12,398 16,977 29,375 19,420 Dec-06 1973/1982 40 Office Centenial, CO — 4,851 15,239 20,090 5,889 May-07 2001 10 & 40 Office Englewood, CO — 2,207 27,851 30,058 2,857 Apr-13 2013 15, 19 & 40 Office Lakewood, CO — 1,569 10,286 11,855 6,102 Apr-05 2002 2, 3, 12, 15 & 40 Office Louisville, CO — 3,657 11,217 14,874 3,069 Sep-08 1987/2007 8, 9, 12 & 40 Office Parachute, CO — 1,400 10,751 12,151 581 Jan-14 2012 19, 24 & 40 Office Wallingford, CT — 1,049 4,773 5,822 1,652 Dec-03 1977/1993 8 & 40 Office Boca Raton, FL 19,624 4,290 17,160 21,450 5,524 Feb-03 1983/2002 40 Office Lake Mary, FL — 4,438 15,271 19,709 5,302 Jun-07 1999 3, 4, 7, 10, 15 & 40 Office Lake Mary, FL — 4,535 14,939 19,474 5,298 Jun-07 1996 3, 4, 7, 10, 18 & 40 Office Orlando, FL 9,471 3,538 9,844 13,382 5,361 Jan-07 2003 5, 6, 12, 15 & 40 Office Palm Beach Gardens, FL — 787 3,732 4,519 1,502 May-98 1996 5 - 40 Office Tampa, FL — 146 559 705 36 Dec-13 1999 20 & 35 Office Tampa, FL — 895 5,496 6,391 322 Dec-13 1999 20 & 38 Office Tampa, FL — 2,018 7,993 10,011 1,327 Sep-12 1986 8, 25 & 27 Office Tampa, FL — 398 1,571 1,969 100 Dec-13 2014 14, 20 & 40 Office McDonough, GA — 1,443 11,433 12,876 1,443 Sep-12 1999 3, 10, 11 & 38 Office McDonough, GA — 693 6,405 7,098 858 Sep-12 2007 6, 11 & 40 Office Meridian, ID 9,322 2,255 7,797 10,052 1,339 Sep-12 2004 7 & 37 Office Lisle, IL 9,449 3,236 13,854 17,090 4,124 Dec-06 1984 2, 3, 5, 20 & 40 Office Schaumburg, IL — 5,007 22,340 27,347 3,247 Oct-13 1979/1989/ 2010 7, 9, 20 & 30 Office Columbus, IN 20,986 235 45,729 45,964 17,497 Dec-06 1980/2006 40 Office Fishers, IN — 2,808 19,373 22,181 5,831 Jun-07 1999 3 - 40 Office Indianapolis, IN — 1,700 18,491 20,191 12,977 Apr-05 1999 5, 6 - 40 Office Lenexa, KS 9,463 2,828 6,075 8,903 961 Sep-12 2004 7, 12 & 37 Office Lenexa, KS 36,666 6,909 41,684 48,593 11,083 Jul-08 2007 5, 12, 13,14, 15 & 40 Office Overland Park, KS 34,134 4,769 41,956 46,725 12,979 Jun-07 1980/2005 12 & 40 Office Baton Rouge, LA — 1,252 11,085 12,337 3,889 May-07 1997 3, 4, 6 & 40 Office Boston, MA 12,302 3,814 16,040 19,854 3,653 Mar-07 1910 10 & 40 Office Oakland, ME 8,850 551 8,774 9,325 1,201 Sep-12 2005 8, 12 & 40 Office Auburn Hills, MI — 4,416 30,012 34,428 1,211 Mar-15 2014 6, 14 & 25 Office Livonia, MI — 935 13,714 14,649 2,256 Sep-12 1987/1988/ 1990 2 - 34 Office Kansas City, MO 16,271 2,433 20,154 22,587 6,215 Jun-07 1963/2003 12 & 40 Office St Joseph, MO — 607 14,004 14,611 1,472 Sep-12 2012 15 & 40 Office Pascagoula, MS — 618 3,677 4,295 587 Sep-12 1995 1, 9 & 31 Office Omaha, NE 7,608 2,566 8,324 10,890 2,564 Nov-05 1995 30 & 40 Office Omaha, NE — 2,058 32,343 34,401 1,928 Dec-13 2013 20 & 40 Office Rockaway, NJ — 4,646 23,143 27,789 5,695 Dec-06 2002/2004/ 2015 12, 20 & 40 Office Wall, NJ 17,536 8,985 26,961 35,946 12,569 Jan-04 1983 22 & 40 Description Location Encumbrances Land and Land Estates Buildings and Improvements Total Accumulated Depreciation and Amortization Date Acquired Date Constructed Useful life computing depreciation in latest income statement (years) Office Whippany, NJ 13,700 4,063 19,711 23,774 7,397 Nov-06 2006/2008 20 & 40 Office Las Vegas, NV — 12,099 53,164 65,263 12,229 Dec-06 1983/1994 40 Office Columbus, OH — 1,594 10,481 12,075 1,310 Dec-10 2005 40 Office Columbus, OH — 432 2,773 3,205 312 Jul-11 1999/2006 40 Office Milford, OH — 3,124 16,140 19,264 5,755 Jun-07 1991 5 - 40 Office Westerville, OH — 2,085 9,411 11,496 2,853 May-07 2000 5 & 40 Office Eugene, OR — 1,541 13,098 14,639 1,374 Dec-12 2012 7, 12, 15, 25 & 40 Office Redmond, OR — 2,064 8,316 10,380 1,196 Sep-12 2004 6, 13 & 40 Office Harrisburg, PA — 900 11,310 12,210 7,924 Apr-05 1998 2, 5, 9,10, 15, 20 & 40 Office Jessup, PA — 2,520 17,678 20,198 2,391 Aug-12 2012 13, 15 & 40 Office Philadelphia, PA — 13,209 56,520 69,729 32,966 Jun-05 1957/1997 4 - 40 Office Charleston, SC 7,185 1,189 8,724 9,913 3,467 Nov-06 2006 40 Office Florence, SC — 774 3,629 4,403 412 Feb-12 2012 12 & 40 Office Fort Mill, SC — 3,601 15,340 18,941 4,953 Dec-02 2002 5, 11, 20 & 40 Office Fort Mill, SC — 1,798 26,038 27,836 15,322 Nov-04 2004 11, 15 & 40 Office Rock Hill, SC — 551 4,313 4,864 503 May-11 2006 40 Office Rock Hill, SC — 1,601 21,000 22,601 1,053 Mar-14 2013/2015 18, 20 & 40 Office Kingsport, TN — 513 403 916 155 Sep-12 1981 5, 6 & 14 Office Knoxville, TN — 1,079 11,351 12,430 6,248 Mar-05 1997 9, 10, 11, 14 & 40 Office Knoxville, TN — 621 6,282 6,903 925 Sep-12 2002 1, 5, 7 & 40 Office Memphis, TN 3,555 467 4,467 4,934 1,681 Nov-06 1871/1999 20 & 40 Office Memphis, TN — 5,291 97,032 102,323 22,742 Dec-06 1985/2007 13 & 40 Office Allen, TX — 5,591 25,421 31,012 7,195 May-11 1981/1983 6, 7, 11 & 25 Office Arlington, TX — 1,274 15,309 16,583 1,961 Sep-12 2003 1, 10, 12 & 40 Office Carrollton, TX — 1,789 18,157 19,946 8,645 Jun-04 2003 19 & 40 Office Carrollton, TX — 2,599 22,050 24,649 7,893 Jun-07 2003 8 & 40 Office Carrollton, TX — 828 — 828 — Jun-07 N/A N/A Office Farmers Branch, TX 18,380 3,984 27,308 31,292 10,137 Jun-07 2000 40 Office Garland, TX — 1,161 833 1,994 — Sep-12 1980 1 Office Houston, TX — 1,875 10,675 12,550 6,745 Apr-05 2000 5, 10, 13 & 40 Office Houston, TX — 1,875 10,959 12,834 6,824 Apr-05 2000 4, 13, 20 & 40 Office Houston, TX — 16,613 63,770 80,383 15,753 Mar-04 1976/1984 10 & 40 Office Houston, TX — 800 26,962 27,762 18,618 Apr-05 2000 1, 10, 11 & 40 Office Houston, TX — 481 2,352 2,833 187 Dec-13 2002 11, 20 & 31 Office Irving, TX — 4,889 29,738 34,627 10,532 Jun-07 1999 10, 12 & 40 Office Irving, TX — 7,476 45,985 53,461 17,532 May-07 2003 6 - 40 Office Mission, TX — 2,556 2,911 5,467 635 Sep-12 2003 3, 8 & 35 Office San Antonio, TX — 2,800 15,619 18,419 11,534 Apr-05 2000 6, 10, 11 & 40 Office Temple, TX 7,463 227 8,181 8,408 1,462 Sep-12 2001 3, 10, 12 & 40 Office Westlake, TX — 2,361 23,572 25,933 9,510 May-07 2001 4 - 40 Office Hampton, VA — 2,333 11,354 13,687 4,463 Mar-00 1999 2, 5, 10, 15 & 40 Office Herndon, VA — 5,127 24,640 29,767 9,215 Dec-99 1987 9 - 40 Office Herndon, VA — 9,409 14,477 23,886 5,056 Jun-07 1985/1999 10, 25 & 40 Office Midlothian, VA — 1,100 12,685 13,785 7,073 Apr-05 2000 6, 7, 15 & 40 Office Richmond, VA — 7,331 88,021 95,352 345 Dec-15 2015 10, 13 & 25 Office Bremerton, WA 5,534 1,655 5,445 7,100 917 Sep-12 2002 4, 13 & 40 Office Huntington, WV 6,500 1,368 9,527 10,895 1,270 Jan-12 2011 14 & 40 Industrial Anniston, AL — 1,201 16,771 17,972 790 Dec-14 2,014 8, 15 & 24 Industrial Moody, AL — 654 9,943 10,597 6,205 Feb-04 2004 15 & 40 Industrial Orlando, FL — 1,030 10,869 11,899 2,758 Dec-06 1980 40 Industrial Tampa, FL — 2,160 8,431 10,591 5,905 Jul-88 1986 9 - 40 Industrial Lavonia, GA 7,676 171 7,657 7,828 722 Sep-12 2005 8, 12 & 40 Industrial McDonough, GA 22,224 2,463 24,291 26,754 5,859 Dec-06 2000/2007 40 Industrial Thomson, GA — 909 7,746 8,655 249 May-15 2015 8, 15 & 25 Description Location Encumbrances Land and Land Estates Buildings and Improvements Total Accumulated Depreciation and Amortization Date Acquired Date Constructed Useful life computing depreciation in latest income statement (years) Industrial Des Moines, IA — 1,528 14,247 15,775 1,953 Sep-12 2000 5, 11 & 34 Industrial Dubuque, IA 9,055 2,052 8,443 10,495 2,755 Jul-03 2001 11, 12 & 40 Industrial Rantoul, IL — 1,304 32,562 33,866 1,789 Jan-14 2013 20, 21 & 40 Industrial Rockford, IL — 371 2,573 2,944 666 Dec-06 1998 40 Industrial Rockford, IL — 509 5,289 5,798 1,305 Dec-06 1992 40 Industrial Plymouth, IN 5,807 254 8,110 8,364 971 Sep-12 2000/2003 3, 6, 12, 15 & 34 Industrial Dry Ridge, KY — 560 12,553 13,113 4,580 Jun-05 1988/1992 22 & 40 Industrial Elizabethtown, KY — 352 4,862 5,214 1,774 Jun-05 2001 25 & 40 Industrial Elizabethtown, KY — 890 26,868 27,758 9,804 Jun-05 1995/2001 25 & 40 Industrial Hopkinsville, KY — 631 16,154 16,785 6,234 Jun-05 Various 25 & 40 Industrial Owensboro, KY — 393 11,956 12,349 4,984 Jun-05 1998/2000 25 & 40 Industrial Owensboro, KY — 819 2,439 3,258 860 Dec-06 1975/1995 40 Industrial Shreveport, LA 19,000 860 21,840 22,700 4,800 Mar-07 2006 40 Industrial Shreveport, LA — 1,078 10,134 11,212 1,305 Jun-12 2012 8,10 & 40 Industrial North Berwick, ME 4,810 1,383 35,659 37,042 7,713 Dec-06 1965/1980/ 2015 10, 25 & 40 Industrial Kalamazoo, MI — 1,942 14,169 16,111 1,898 Sep-12 1999/2004 8, 9 & 40 Industrial Marshall, MI — 40 2,236 2,276 854 Aug-87 1979 9, 10, 12, 15, 20 & 40 Industrial Marshall, MI — 143 4,302 4,445 1,575 Sep-12 1968/1972/ 2008 4, 6 & 10 Industrial Plymouth, MI — 2,296 13,608 15,904 5,124 Jun-07 1996/1998 30 & 40 Industrial Temperance, MI — 3,040 14,924 17,964 4,139 Jun-07 1978/1993 2, 5, & 40 Industrial Minneapolis, MN — 1,886 1,922 3,808 204 Sep-12 2003 3, 29 & 40 Industrial Byhalia, MS 15,000 1,006 35,825 36,831 2,912 May-11 2011/2015 25 & 40 Industrial Canton, MS — 5,077 71,289 76,366 2,590 Mar-15 2015 8, 12, 25 & 51 Industrial Olive Branch, MS — 198 10,276 10,474 6,771 Dec-04 1989 8, 15 & 40 Industrial Franklin, NC — 296 1,320 1,616 211 Sep-12 1996 2, 8 & 29 Industrial Henderson, NC — 1,488 5,953 7,441 2,102 Nov-01 1998/2006 40 Industrial High Point, NC — 1,330 11,183 12,513 5,688 Jul-04 2002 18 & 40 Industrial Lumberton, NC — 405 12,049 12,454 3,488 Dec-06 1998/2006 40 Industrial Shelby, NC — 1,421 18,862 20,283 3,180 Jun-11 2011 11, 20 & 40 Industrial Statesville, NC — 891 16,771 17,662 4,561 Dec-06 1999/2002 3, 15 & 40 Industrial Durham, NH — 3,464 18,094 21,558 5,320 Jun-07 1986/2003 40 Industrial Erwin, NY 7,887 1,648 12,355 14,003 1,371 Sep-12 2006 4, 8, 10 & 34 Industrial Long Island City, NY 49,144 — 42,624 42,624 8,042 Mar-13 2013 15 Industrial North Las Vegas, NV — 3,244 21,732 24,976 1,053 Jul-13 2014 19, 20 & 40 Industrial Chillicothe, OH — 735 9,021 9,756 1,886 Oct-11 1995/1998 6, 15 & 26 Industrial Cincinnati, OH — 1,049 8,784 9,833 2,174 Dec-06 1991 10, 14 & 40 Industrial Columbus, OH — 1,990 10,580 12,570 3,131 Dec-06 1973 40 Industrial Glenwillow, OH 15,326 2,228 24,530 26,758 5,979 Dec-06 1996 40 Industrial Hebron, OH — 1,063 4,581 5,644 1,516 Dec-97 1999 10, 15 & 40 Industrial Hebron, OH — 1,681 7,854 9,535 2,857 Dec-01 2000 1, 2, 3, 5, 10,15 & 40 Industrial Streetsboro, OH 17,626 2,441 25,092 27,533 7,238 Jun-07 2004 12, 20, 25 & 40 Industrial Bristol, PA — 2,508 15,863 18,371 6,020 Mar-98 1982/1997 10, 16, 30 & 40 Industrial Chester, SC 8,738 1,629 8,470 10,099 1,031 Sep-12 2001/2005 9, 13 & 34 Industrial Duncan, SC — 884 8,626 9,510 1,945 Jun-07 2005/2008 40 Industrial Laurens, SC — 5,552 21,559 27,111 5,980 Jun-07 1991/1993 2, 4, 5, 20 & 40 Industrial Collierville, TN — 714 4,783 5,497 1,951 Dec-05 2005/2012 9, 14, 21 & 40 Industrial Crossville, TN — 545 6,999 7,544 3,512 Jan-06 1989/2006 17 & 40 Industrial Franklin, TN — — 5,673 5,673 1,659 Sep-12 1970/1983 1, 4 & 12 Industrial Lewisburg, TN — 173 10,865 11,038 565 May-14 2014 12, 18 & 34 Industrial Memphis, TN — 1,054 11,538 12,592 11,414 Feb-88 1987 8 &15 Industrial Memphis, TN — 1,553 12,326 13,879 3,412 Dec-06 1973 40 Industrial Millington, TN — 723 19,383 20,106 10,163 Apr-05 1997 9, 10, 16 & 40 Industrial Brookshire, TX — 2,388 16,614 19,002 583 Mar-15 1999/2001 5, 20 & 25 Description Location Encumbrances Land and Land Estates Buildings and Improvements Total Accumulated Depreciation and Amortization Date Acquired Date Constructed Useful life computing depreciation in latest income statement (years) Industrial Houston, TX — 4,674 19,540 24,214 1,603 Mar-15 1962 5, 10 & 20 Industrial Waxahachie, TX — 652 13,045 13,697 9,926 Dec-03 1996/2001 10, 16 & 40 Industrial Winchester, VA — 3,823 12,276 16,099 3,396 Jun-07 2001 4 & 40 Industrial Bingen, WA — — 18,075 18,075 1,475 May-14 2014 10, 13 & 40 Industrial Richland, WA 110,000 1,293 126,947 128,240 876 Nov-15 2015 10, 20 & 25 Industrial Oak Creek, WI — 3,015 15,300 18,315 287 Jul-15 2015 10,20, & 25 Land/Infrastructure Venice, FL — 4,696 11,753 16,449 2,123 Jan-15 1995 5 & 12 Land/Infrastructure Clive, IA — 371 — 371 — Jun-04 N/A N/A Land/Infrastructure Baltimore, MD — 4,605 — 4,605 — Dec-06 N/A N/A Land/Infrastructure Baltimore, MD — 5,000 — 5,000 — Dec-15 N/A N/A Land/Infrastructure New York, NY (1) — 65,218 — 65,218 — Oct-13 N/A N/A Land/Infrastructure New York, NY (1) 213,301 73,148 — 73,148 — Oct-13 N/A N/A Land/Infrastructure New York, NY (1) — 86,569 — 86,569 — Oct-13 N/A N/A Land/Infrastructure New York, NY 29,193 22,000 — 22,000 — Oct-14 N/A N/A Land/Infrastructure Houston, TX — 15,055 57,949 73,004 4,960 Mar-13 Various 11, 12, 16 & 35 Land/Infrastructure Missouri City, TX — 14,555 5,895 20,450 3,088 Apr-12 N/A 7 Land/Infrastructure Danville, VA — 3,454 — 3,454 — Oct-13 N/A N/A Multi-tenanted Phoenix, AZ — 1,831 15,211 17,042 3,502 Nov-01 1981/2009 5 - 40 Multi-tenanted Palm Beach Gardens, FL — 4,066 21,638 25,704 7,527 May-98 1996 5 - 40 Multi-tenanted Honolulu, HI — 8,259 7,363 15,622 1,759 Dec-06 1979/2002 2, 5 & 40 Multi-tenanted Westmont, IL — 7,812 1,178 8,990 24 Jul-15 1988 25 Multi-tenanted Foxboro, MA — 2,231 25,662 27,893 14,355 Dec-04 1982/1987 1, 16 & 40 Multi-tenanted Southfield, MI — — 15,434 15,434 7,840 Jul-04 1966/1982 7, 16, 25 & 40 Multi-tenanted Bridgeton, MO — 603 1,271 1,874 51 Dec-06 1981 3 & 32 Multi-tenanted Bridgewater, NJ (2) 14,118 1,415 6,802 8,217 438 Dec-06 1985/2004 8, 15 & 40 Multi-tenanted Canonsburg, PA — 1,705 10,910 12,615 4,189 May-07 1996 8 & 40 Multi-tenanted Florence, SC — 3,235 13,141 16,376 4,540 May-04 1998 10, 15, 20 & 40 Multi-tenanted Antioch, TN — 3,847 12,569 16,416 1,840 May-07 1999 5 - 40 Multi-tenanted Arlington, TX — 589 6,382 6,971 830 Sep-12 2003 1, 12 & 40 Retail/Specialty Manteca, CA 834 2,082 6,464 8,546 1,680 May-07 1993 23 & 40 Retail/Specialty San Diego, CA 532 — 13,310 13,310 2,961 May-07 1993 23 & 40 Retail/Specialty Albany, GA — 1,468 5,137 6,605 344 Oct-13 2013 15 & 40 Retail/Specialty Atlanta, GA — 1,014 269 1,283 297 Dec-06 1972 40 Retail/Specialty Atlanta, GA — 870 187 1,057 242 Dec-06 1975 40 Retail/Specialty Chamblee, GA — 770 186 956 237 Dec-06 1972 40 Retail/Specialty Cumming, GA — 1,558 1,368 2,926 666 Dec-06 1968/1982 40 Retail/Specialty Forest Park, GA — 668 1,242 1,910 446 Dec-06 1969 40 Retail/Specialty Jonesboro, GA — 778 146 924 213 Dec-06 1971 40 Retail/Specialty Stone Mountain, GA — 672 276 948 219 Dec-06 1973 40 Retail/Specialty Galesburg, IL 468 560 2,366 2,926 714 May-07 1992 12 & 40 Retail/Specialty Lawrence, IN — 404 1,737 2,141 399 Dec-06 1983 40 Retail/Specialty Jefferson, NC — 71 884 955 230 Dec-06 1981 40 Retail/Specialty Lexington, NC — 832 1,429 2,261 322 Dec-06 1981 40 Retail/Specialty Thomasville, NC — 208 561 769 73 Dec-06 1993 40 Retail/Specialty Vineland, NJ — 2,698 12,790 15,488 505 Oct-14 2003 3, 28 & 40 Retail/Specialty Portchester, NY — 3,841 5,246 9,087 869 Dec-06 1982 40 Retail/Specialty Watertown, NY 785 386 5,162 5,548 1,414 May-07 1993 23 & 40 Retail/Specialty Canton, OH — 884 3,534 4,418 1,248 Nov-01 1995 40 Retail/Specialty Franklin, OH — 213 262 475 6 Dec-06 1961/1978 24 & 32 Retail/Specialty Lorain, OH 1,181 1,893 7,024 8,917 1,827 May-07 1993 23 & 40 Retail/Specialty Lawton, OK — 663 1,288 1,951 441 Dec-06 1984 40 Retail/Specialty Oklahoma City, OK — 1,782 912 2,694 448 Sep-12 1991/1996 5 & 13 Retail/Specialty Tulsa, OK — 445 2,433 2,878 2,405 Dec-96 1981 14 & 24 Retail/Specialty Chattanooga, TN — 487 956 1,443 121 Dec-06 1983/1995 40 Retail/Specialty Paris, TN — 247 547 794 180 Dec-06 1982 40 Retail/Specialty Staunton, VA — 1,028 326 1,354 97 Dec-06 1971 40 Description Location Encumbrances Land and Land Estates Buildings and Improvements Total Accumulated Depreciation and Amortization Date Acquired Date Constructed Useful life computing depreciation in latest income statement (years) Retail/Specialty Edmonds, WA — — 3,947 3,947 1,079 Dec-06 1981 40 Retail/Specialty Fairlea, WV 551 501 1,985 2,486 490 May-07 1993/1999 12 & 40 Construction in progress — — — 8,552 — $ 882,952 $ 743,125 $ 3,038,034 $ 3,789,711 $ 812,207 (1) Properties are cross-collateralized. (2) Loan is in default as of December 31, 2015. (A) The initial cost includes the purchase price paid directly or indirectly by the Company. The total cost basis of the Company's properties at December 31, 2015 for federal income tax purposes was approximately $4.6 billion. 2015 2014 2013 Reconciliation of real estate, at cost: Balance at the beginning of year $ 3,671,560 $ 3,812,294 $ 3,564,466 Additions during year 478,717 210,143 492,437 Properties sold during year (332,670 ) (282,143 ) (212,771 ) Properties impaired during the year (11,306 ) (65,426 ) (31,741 ) Other reclassifications (16,590 ) (3,308 ) (97 ) Balance at end of year $ 3,789,711 $ 3,671,560 $ 3,812,294 Reconciliation of accumulated depreciation and amortization: Balance at the beginning of year $ 795,486 $ 775,617 $ 738,068 Depreciation and amortization expense 124,618 119,156 122,057 Accumulated depreciation and amortization of properties sold and impaired during year (106,268 ) (98,698 ) (84,508 ) Other reclassifications (1,629 ) (589 ) — Balance at end of year $ 812,207 $ 795,486 $ 775,617

Summary of Significant Accoun32

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2015
Accounting Policies [Abstract]
Basis of Presentation and Consolidation	Basis of Presentation and Consolidation. The Company's consolidated financial statements are prepared on the accrual basis of accounting in accordance with U.S. generally accepted accounting principles (“GAAP”). The financial statements reflect the accounts of the Company and its consolidated subsidiaries. The Company consolidates its wholly-owned subsidiaries, partnerships and joint ventures which it controls (i) through voting rights or similar rights or (ii) by means other than voting rights if the Company is the primary beneficiary of a variable interest entity ("VIE"). Entities which the Company does not control and entities which are VIEs in which the Company is not the primary beneficiary are accounted for under appropriate GAAP. If an investment is determined to be a VIE, the Company performs an analysis to determine if the Company is the primary beneficiary of the VIE. GAAP requires a VIE to be consolidated by its primary beneficiary. The primary beneficiary is the party that has a controlling financial interest in an entity. A controlling financial interest in an entity represents both (1) the power to direct the activities of a VIE that most significantly impact the entity's economic performance and (2) the obligation to absorb losses or the right to receive benefits of an entity that could potentially be significant to the VIE. At December 31, 2015 and 2014 , the Company held variable interests in certain non-consolidated VIEs; however, the Company was not the primary beneficiary of these VIEs as the Company does not have a controlling financial interest in the entities. The Company has certain acquisition commitments and/or acquisition, development and construction arrangements with VIEs, for which it is obligated to fund certain amounts as discussed in note 4.
Earnings Per Share	Earnings Per Share . Basic net income (loss) per share is computed by dividing net income (loss) reduced by preferred dividends and amounts allocated to certain non-vested share-based payment awards, if applicable, by the weighted-average number of common shares outstanding during the period. Diluted net income (loss) per share amounts are similarly computed but include the effect, when dilutive, of in-the-money common share options and non-vested common shares, OP units and put options of certain convertible securities
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 consolidated financial statements in conformity with GAAP. These estimates and assumptions are based on management's best estimates and judgment. Management evaluates its estimates and assumptions on an ongoing basis using historical experience and other factors, including the current economic environment. The current economic environment has increased the degree of uncertainty inherent in these estimates and assumptions. Management adjusts such estimates when facts and circumstances dictate. The most significant estimates made include the recoverability of accounts receivable, allocation of property purchase price to tangible and intangible assets acquired and liabilities assumed, the determination of VIEs and which entities should be consolidated, the determination of impairment of long-lived assets, loans receivable and equity method investments, valuation of derivative financial instruments, valuation of compensation plans 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 ("FASB") Accounting Standards Codification ("ASC") Topic 820, Fair Value Measurements and Disclosures ("Topic 820"), to determine the fair value of financial and non-financial instruments. Topic 820 defines fair value, establishes a framework for measuring fair value in GAAP and expands disclosures about fair value measurements. Topic 820 establishes a fair value hierarchy that prioritizes observable and unobservable inputs used to measure fair value into three levels: Level 1 - quoted prices (unadjusted) in active markets that are accessible at the measurement date for assets or liabilities; Level 2 - observable prices that are based on inputs not quoted in active markets, but corroborated by market data; and Level 3 - unobservable inputs, which are used when little or no market data is available. The fair value hierarchy gives the highest priority to Level 1 inputs and the lowest priority to Level 3 inputs. In determining fair value, the Company utilizes valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs to the extent possible, as well as considering counterparty credit risk. The Company has formally elected to apply the portfolio exception within Topic 820 with respect to measuring counterparty risk for all of its derivative transactions subject to master netting arrangements.
Revenue Recognition	Revenue Recognition. The Company recognizes lease revenue on a straight-line basis over the term of the lease unless another systematic and rational basis is more representative of the time pattern in which the use benefit is derived from the leased property. Revenue is recognized on a contractual basis for leases with escalations tied to a consumer price index with no floor. Renewal options in leases with rental terms that are lower than those in the primary term are excluded from the calculation of straight-line rent if the renewals are not reasonably assured. If the Company funds tenant improvements and the improvements are deemed to be owned by the Company, revenue recognition will commence when the improvements are substantially completed and possession or control of the space is turned over to the tenant. If the Company determines that the tenant allowances are lease incentives, the Company commences revenue recognition when possession or control of the space is turned over to the tenant for tenant work to begin. The lease incentive is recorded as a deferred expense and amortized as a reduction of revenue on a straight-line basis over the respective lease term. The Company recognizes lease termination fees as rental revenue in the period received and writes off unamortized lease-related intangible and other lease-related account balances, provided there are no further Company obligations under the lease. Otherwise, such fees and balances are recognized on a straight-line basis over the remaining obligation period with the termination payments being recorded as a component of rent receivable-deferred on the Consolidated Balance Sheets. Gains on sales of real estate are recognized based upon the specific timing of the sale as measured against various criteria related to the terms of the transactions and any continuing involvement associated with the properties. If the sales criteria are not met, the gain is deferred and the finance, installment or cost recovery method, as appropriate, is applied until the sales criteria are met. To the extent the Company sells a property and retains a partial ownership interest in the property, the Company recognizes gain to the extent of the third-party ownership interest.
Purchase Accounting and Acquisition of Real Estate	Purchase Accounting and Acquisition of Real Estate. The fair value of the real estate acquired, which includes the impact of fair value adjustments for assumed mortgage debt related to property acquisitions, is allocated to the acquired tangible assets, consisting of land, building and improvements and identified intangible assets and liabilities, consisting of the value of above-market and below-market leases, other value of in-place leases and value of tenant relationships, based in each case on their fair values. Acquisition costs are expensed as incurred and are included in property operating expense in the accompanying Consolidated Statement of Operations. The fair value of the tangible assets of an acquired property (which includes land, building and improvements and fixtures and equipment) is determined by valuing the property as if it were vacant. The “as-if-vacant” value is then allocated to land and building and improvements based on management's determination of relative fair values of these assets. Factors considered by management in performing these analyses include an estimate of carrying costs during the expected lease-up periods considering current market conditions and costs to execute similar leases. In estimating carrying costs, management includes real estate taxes, insurance and other operating expenses and estimates of lost rental revenue during the expected lease-up periods based on current market demand. Management also estimates costs to execute similar leases including leasing commissions. In allocating the fair value of the identified intangible assets and liabilities of an acquired property, above-market and below-market lease values are recorded based on the difference between the current in-place lease rent and management's estimate of current market rents. Below-market lease intangibles are recorded as part of deferred revenue and amortized into rental revenue over the non-cancelable periods and bargain renewal periods of the respective leases. Above-market leases are recorded as part of intangible assets and amortized as a direct charge against rental revenue over the non-cancelable portion of the respective leases. The aggregate value of other acquired intangible assets, consisting of in-place leases and tenant relationship values, is measured by the excess of (1) the purchase price paid for a property over (2) the estimated fair value of the property as if vacant, determined as set forth above. This aggregate value is allocated between in-place lease values and tenant relationship values based on management's evaluation of the specific characteristics of each tenant's lease. The value of in-place leases is amortized to expense over the remaining non-cancelable periods and any bargain renewal periods of the respective leases. The value of tenant relationships is amortized to expense over the applicable lease term plus expected renewal periods. Depreciation is determined by the straight-line method over the remaining estimated economic useful lives of the properties. The Company generally depreciates its real estate assets over periods ranging up to 40 years.
Impairment of Real Estate	Impairment of Real Estate. The Company evaluates the carrying value of all tangible and intangible real estate assets held for investment for possible impairment when an event or change in circumstance has occurred that indicates its carrying value may not be recoverable. The evaluation includes estimating and reviewing anticipated future undiscounted cash flows to be derived from the asset. If such cash flows are less than the asset's carrying value, an impairment charge is recognized to the extent by which the asset's carrying value exceeds its estimated fair value, which may be below the balance of any non-recourse financing. Estimating future cash flows and fair values is highly subjective and such estimates could differ materially from actual results.
Investment in Non-Consolidated Entities	Investments in Non-Consolidated Entities . The Company accounts for its investments in 50% or less owned entities under the equity method, unless consolidation is required. If the Company's investment in the entity is insignificant and the Company has no influence over the control of the entity then the entity is accounted for under the cost method.
Impairment of Equity Method Investments	Impairment of Equity Method Investments. The Company assesses whether there are indicators that the value of its equity method investments may be impaired. An impairment charge is recognized only if the Company determines that a decline in the value of the investment below its carrying value is other-than-temporary. The assessment of impairment is highly subjective and involves the application of significant assumptions and judgments about the Company's intent and ability to recover its investment given the nature and operations of the underlying investment, including the level of the Company's involvement therein, among other factors. To the extent an impairment is deemed to be other-than-temporary, the loss is measured as the excess of the carrying amount of the investment over the estimated fair value of the investment.
Loans Receivable	Loans Receivable. Loans held for investment are intended to be held to maturity and, accordingly, are carried at cost, net of unamortized loan origination costs and fees, loan purchase discounts, and net of an allowance for loan losses when such loan is deemed to be impaired. Loan origination costs and fees and loan purchase discounts are amortized over the term of the loan. The Company considers a loan impaired when, based upon current information and events, it is probable that it will be unable to collect all amounts due for both principal and interest according to the contractual terms of the loan agreement. Significant judgments are required in determining whether impairment has occurred. The Company performs an impairment analysis by comparing either the present value of expected future cash flows discounted at the loan's effective interest rate, the loan's observable current market price or the fair value of the underlying collateral to the net carrying value of the loan, which may result in an allowance and corresponding loan loss charge. Interest income is recorded on a cash basis for impaired loans.
Acquisition, Development and Construction Arrangements	Acquisition, Development and Construction Arrangements. The Company evaluates loans receivable where the Company participates in residual profits through loan provisions or other contracts to ascertain whether the Company has the same risks and rewards as an owner or a joint venture partner. Where the Company concludes that such arrangements are more appropriately treated as an investment in real estate, the Company reflects such loan receivable as an equity investment in real estate under construction in the Consolidated Balance Sheets. In these cases, no interest income is recorded on the loan receivable and the Company records capitalized interest during the construction period. In arrangements where the Company engages a developer to construct a property or provide funds to a tenant to develop a property, the Company will capitalize the funds provided to the developer/tenant and internal costs of interest and real estate taxes, if applicable, during the construction period.
Properties Held For Sale	Properties Held For Sale. Assets and liabilities of properties that meet various held for sale criteria, including whether it is probable that a sale will occur within 12 months, are presented separately in the Consolidated Balance Sheets. As of January 1, 2015, the operating results of these properties are reflected as discontinued operations in the Consolidated Statements of Operations only if the sale of these assets represents a strategic shift in operations, if not, the operating results are included in continuing operations. Properties classified as held for sale are carried at the lower of net carrying value or estimated fair value less costs to sell and depreciation and amortization are no longer recognized. Properties that do not meet the held for sale criteria are accounted for as operating properties.
Deferred Expenses	Deferred Expenses. Deferred expenses consist primarily of debt and leasing costs. Debt costs are amortized using the straight-line method, which approximates the interest method, over the terms of the debt instruments and leasing costs are amortized over the term of the related lease.
Derivative Financial Instruments	Derivative Financial Instruments . The Company accounts for its interest rate swap agreements in accordance with FASB ASC Topic 815, Derivatives and Hedging ("Topic 815"). In accordance with Topic 815, these agreements are carried on the balance sheet at their respective fair values, as an asset if fair value is positive, or as a liability if fair value is negative. If the interest rate swap is designated as a cash flow hedge, the effective portion of the interest rate swap's change in fair value is reported as a component of other comprehensive income (loss); the ineffective portion, if any, is recognized in earnings as an increase or decrease to interest expense. Upon entering into hedging transactions, the Company documents the relationship between the interest rate swap agreement and the hedged item. The Company also documents its risk-management policies, including objectives and strategies, as they relate to its hedging activities. The Company assesses, both at inception of a hedge and on an ongoing basis, whether or not the hedge is highly effective. The Company will discontinue hedge accounting on a prospective basis with changes in the estimated fair value reflected in earnings when (1) it is determined that the derivative is no longer effective in offsetting cash flows of a hedged item (including forecasted transactions), (2) it is no longer probable that the forecasted transaction will occur or (3) it is determined that designating the derivative as an interest rate swap is no longer appropriate. The Company does and may continue to utilize interest rate swap and cap agreements to manage interest rate risk, but does not anticipate entering into derivative transactions for speculative trading purposes.
Stock Compensation	Stock Compensation. The Company maintains an equity participation plan. Non-vested share grants generally vest either based upon (1) time, (2) performance and/or (3) market conditions. Options granted under the plan in 2010 vested over a five -year period and expire ten years from the date of grant. Options granted under the plan in 2008 vested upon attainment of certain market performance measures and expire ten years from the date of grant. All share-based payments to employees, including grants of employee stock options, are recognized in the Consolidated Statements of Operations based on their fair values.
Tax Status	Tax Status. The Company has made an election to qualify, and believes it is operating so as to qualify, as a REIT for federal income tax purposes. Accordingly, the Company generally will not be subject to federal income tax, provided that distributions to its shareholders equal at least the amount of its REIT taxable income as defined under Sections 856 through 860 of the Code. The Company is permitted to participate in certain activities from which it was previously precluded in order to maintain its qualification as a REIT, so long as these activities are conducted in entities which elect to be treated as taxable REIT subsidiaries under the Code. As such, the Company is subject to federal and state income taxes on the income from these activities. Income taxes, primarily related to the Company's taxable REIT subsidiaries, are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax basis and operating loss and tax credit carry-forwards. Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which those temporary differences are expected to be recovered or settled.
Cash and Cash Equivalents	Cash and Cash Equivalents. The Company considers all highly liquid instruments with maturities of three months or less from the date of purchase to be cash equivalents.
Restricted Cash	Restricted Cash. Restricted cash is comprised primarily of cash balances held in escrow with lenders.
Environmental Matters	Environmental Matters. Under various federal, state and local environmental laws, statutes, ordinances, rules and regulations, an owner of real property may be liable for the costs of removal or remediation of certain hazardous or toxic substances at, on, in or under such property as well as certain other potential costs relating to hazardous or toxic substances. These liabilities may include government fines, penalties and damages for injuries to persons and adjacent property. Such laws often impose liability without regard to whether the owner knew of, or was responsible for, the presence or disposal of such substances. Although most of the tenants of properties in which the Company has an interest are primarily responsible for any environmental damage and claims related to the leased premises, in the event of the bankruptcy or inability of the tenant of such premises to satisfy any obligations with respect to such environmental liability, or if the tenant is not responsible, the Company's property owner subsidiary may be required to satisfy any such obligations, should they exist. In addition, the property owner subsidiary, as the owner of such a property, may be held directly liable for any such damages or claims irrespective of the provisions of any lease.
Segment Reporting	Segment Reporting. The Company operates generally in one industry segment, single-tenant real estate assets.
Reclassification	Reclassifications . Certain amounts included in prior years' financial statements have been reclassified to conform to the current years presentation, including certain statement of operations captions.
Recently Issued Accounting Guidance	Recently Issued Accounting Guidance. In April 2014, the FASB issued Accounting Standards Update (“ASU”) 2014-08, Presentation of Financial Statements (Topic 205) and Property, Plant and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity, which changes the criteria for reporting discontinued operations and improves financial statement disclosures. Under this guidance, only disposals representing a strategic shift in operations that have a major effect on an organization's operations and financial results should be presented as discontinued operations. The Company adopted this guidance effective January 1, 2015. The guidance requires the Company to continue to classify any property disposal or property classified as held for sale as of December 31, 2014 as discontinued operations prospectively. Therefore, the revenues and expenses related to these properties are presented as discontinued operations as of December 31, 2015. The Company did not classify any additional properties as discontinued operations subsequent to December 31, 2014 as the dispositions did not represent a strategic shift in operations. The implementation of this guidance did not have a material impact on the Company's financial position, results of operations or cash flows. In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606), which amends the guidance for revenue recognition to eliminate the industry-specific revenue recognition guidance and replace it with a principle based approach for determining revenue recognition. The effective date of the new guidance was updated by ASU 2015-14 and is effective for reporting periods beginning after December 15, 2017. The Company is currently evaluating the impact of the adoption of the new guidance on its consolidated financial statements. In February 2015, the FASB issued ASU 2015-02, Consolidation (Topic 810) - Amendments to the Consolidation Analysis, which provides guidance on the consolidation evaluation for reporting organizations that are required to evaluate whether they should consolidate certain legal entities. In accordance with the guidance, all legal entities are subject to reevaluation under the revised consolidation model. The guidance is effective in the first quarter of 2016. The Company does not believe this guidance will have a material impact on its consolidated financial statements. In April 2015, the FASB issued ASU 2015-03, Simplifying the Presentation of Debt Issuance Costs, which requires that debt issuance costs be presented on the balance sheet as a direct deduction from the carrying amount of the related debt liability. In August 2015, the FASB issued additional guidance to clarify ASU 2015-03, which states that an entity may defer and present debt issuance costs as an asset and amortize the costs ratably over the term of a line of credit arrangement, regardless of whether there are any outstanding borrowings on the line of credit. The guidance is effective in the first quarter of 2016 and requires retrospective application. The Company does not believe this guidance will have a material impact on its consolidated financial statements.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2015
Earnings Per Share [Abstract]
Schedule of Earnings Per Share Reconciliation	The following is a reconciliation of the numerators and denominators of the basic and diluted earnings per share computations for each of the years in the three-year period ended December 31, 2015 : 2015 2014 2013 BASIC Income (loss) from continuing operations attributable to common shareholders $ 103,418 $ 37,652 $ (38,506 ) Income from discontinued operations attributable to common shareholders 1,682 48,672 24,417 Net income (loss) attributable to common shareholders $ 105,100 $ 86,324 $ (14,089 ) Weighted-average number of common shares outstanding 233,455,056 228,966,253 209,797,238 Income (loss) per common share: Income (loss) from continuing operations $ 0.44 $ 0.17 $ (0.18 ) Income from discontinued operations 0.01 0.21 0.11 Net income (loss) attributable to common shareholders $ 0.45 $ 0.38 $ (0.07 ) 2015 2014 2013 DILUTED: Income (loss) from continuing operations attributable to common shareholders $ 103,418 $ 37,652 $ (38,506 ) Impact of assumed conversions — — — Income (loss) from continuing operations attributable to common shareholders 103,418 37,652 (38,506 ) Income from discontinued operations attributable to common shareholders 1,682 48,672 24,417 Impact of assumed conversions: — — — Income from discontinued operations attributable to common shareholders 1,682 48,672 24,417 Net income (loss) attributable to common shareholders $ 105,100 $ 86,324 $ (14,089 ) Weighted-average common shares outstanding - basic 233,455,056 228,966,253 209,797,238 Effect of dilutive securities: Share options 296,719 470,455 — Weighted-average common shares outstanding 233,751,775 229,436,708 209,797,238 Income (loss) per common share: Income (loss) from continuing operations $ 0.44 $ 0.17 $ (0.18 ) Income from discontinued operations 0.01 0.21 0.11 Net income (loss) attributable to common shareholders $ 0.45 $ 0.38 $ (0.07 )

Investments in Real Estate an34

Investments in Real Estate and Real Estate Under Construction (Tables)	12 Months Ended
	Dec. 31, 2015
Real Estate Investments, Net [Abstract]
Schedule of Net Real Estate	The Company's real estate, net, consists of the following at December 31, 2015 and 2014 : 2015 2014 Real estate, at cost: Buildings and building improvements $ 3,032,457 $ 2,895,585 Land, land estates and land improvements 743,125 755,168 Fixtures and equipment 5,577 5,861 Construction in progress 8,552 14,946 Real estate intangibles: In-place lease values 513,564 473,377 Tenant relationships 123,796 133,796 Above-market leases 55,418 98,393 Investments in real estate under construction 95,402 106,238 4,577,891 4,483,364 Accumulated depreciation and amortization (1) (1,179,969 ) (1,196,114 ) Real estate, net $ 3,397,922 $ 3,287,250 (1) Includes accumulated amortization of real estate intangible assets of $367,762 and $400,628 in 2015 and 2014 , respectively. The estimated amortization of the above real estate intangible assets for the next five years is $34,418 in 2016 , $30,561 in 2017 , $26,215 in 2018 , $20,943 in 2019 and $16,722 in 2020 .
Schedule of Acquired Properties	The Company completed the following acquisitions and build-to-suit transactions during 2015 and 2014 : 2015 : Real Estate Intangible Property Type Location Acquisition/Completion Date Initial Cost Basis Lease Expiration Land and Land Estate Building and Improvements Lease in-place Value Land/Infrastructure Venice, FL January 2015 $ 16,850 01/2055 $ 4,696 $ 11,753 $ 401 Office Auburn Hills, MI March 2015 40,025 03/2029 4,416 30,012 5,597 Industrial Houston, TX March 2015 28,650 03/2035 4,674 19,540 4,436 Industrial Brookshire, TX March 2015 22,450 03/2035 2,388 16,614 3,448 Industrial Canton, MS March 2015 89,300 02/2027 5,077 71,289 12,934 Industrial Thomson, GA May 2015 10,144 05/2030 909 7,746 1,489 Industrial Oak Creek, WI July 2015 22,139 06/2035 3,015 15,300 3,824 Industrial Richland, WA November 2015 152,000 08/2035 1,293 126,947 23,760 Office Richmond, VA December 2015 109,544 08/2030 7,331 88,021 14,192 $ 491,102 $ 33,799 $ 387,222 $ 70,081 Weighted-average life of intangible assets (years) 16.8 2014 : Real Estate Intangible Property Type Location Acquisition/Completion Date Initial Cost Basis Lease Expiration Land and Land Estate Building and Improvements Lease in-place Value Industrial Rantoul, IL January 2014 $ 41,277 10/2033 $ 1,304 $ 32,562 $ 7,411 Office Parachute, CO January 2014 13,928 10/2032 1,400 10,751 1,777 Office Rock Hill, SC March 2014 24,715 03/2034 1,601 18,989 4,125 Industrial Lewisburg, TN May 2014 13,320 03/2026 173 10,865 2,282 Industrial North Las Vegas, NV May 2014 28,249 09/2034 3,244 21,444 3,561 Industrial Bingen, WA May 2014 20,391 05/2024 — 18,075 2,316 Land New York, NY October 2014 30,426 10/2113 22,000 — 8,426 Rehab Hospital Vineland, NJ October 2014 19,100 02/2043 2,698 12,790 3,612 Industrial Anniston, AL December 2014 20,907 11/2029 1,201 16,771 2,935 $ 212,313 $ 33,621 $ 142,247 $ 36,445 Weighted-average life of intangible assets (years) 37.5
Schedule of Development Arrangements Outstanding	As of December 31, 2015 , the Company had the following development arrangements outstanding: Location Property Type Square Feet Expected Maximum Commitment/Contribution Lease Term (Years) Estimated Acquisition/ Completion Date GAAP Investment Balance as of 12/31/15 Anderson, SC Industrial 1,325,000 $ 70,012 20 2Q 16 $ 23,826 Lake Jackson, TX Office 664,000 166,164 20 4Q 16 62,353 Charlotte, NC Office 201,000 62,445 15 1Q 17 9,223 2,190,000 $ 298,621 $ 95,402

Property Dispositions and Dis35

Property Dispositions and Discontinued Operations (Tables)	12 Months Ended
	Dec. 31, 2015
Discontinued Operations and Disposal Groups [Abstract]
Schedule of Assets and Liabilities of Held for Sale Properties	Assets and liabilities of held for sale properties as of December 31, 2015 consisted of the following: Assets: Real estate, at cost $ 16,590 Real estate, intangible assets 10,786 Accumulated depreciation and amortization (4,069 ) Deferred rent receivable 1,118 $ 24,425 Liabilities: Other $ 32 Mortgage payable 8,373 $ 8,405

Loans Receivable (Tables)

Loans Receivable (Tables)	12 Months Ended
	Dec. 31, 2015
Loans Receivable, Net [Abstract]
Schedule of Accounts, Notes, Loans and Financing Receivable	The following is a summary of our loans receivable as of December 31, 2015 and 2014 : Loan carrying value (1) Loan 12/31/2015 12/31/2014 Interest Rate Maturity Date Westmont, IL (2) $ — $ 12,152 6.45 % 10/2015 Southfield, MI (3) — 3,296 4.55 % 02/2015 Oklahoma City, OK (4) 8,501 — 11.50 % 03/2016 Austin, TX — 2,800 16.00 % 10/2018 Kennewick, WA 85,505 85,254 9.00 % 05/2022 Other 1,865 2,133 8.00 % 2021-2022 $ 95,871 $ 105,635 (1) Loan carrying value includes accrued interest and is net of origination costs and loan losses, if any. (2) In 2015, the Company acquired the office property collateral and $2,521 of cash collateral and received $1,400 in full settlement of its claim against the borrower. The Company recognized a loan loss of $13,939 during 2013. During 2014 and 2013, the Company recognized $1,284 and $1,737 , respectively, of interest income relating to the impaired loan. (3) In 2015, the Company acquired the office property collateral from the borrower. The Company recorded a $2,500 loan loss in 2014 as the Company determined it was probable that it would not collect the amount owed at maturity. During 2015 and 2014, the Company recognized $14 and $468 , respectively, of interest income relating to the impaired loan. (4) In 2015, the Company loaned a tenant-in-common $8,420 . The loan is secured by the tenant-in-common's interest in an office property in which the Company has a 40% interest.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2015
Fair Value Disclosures [Abstract]
Schedule of Fair Value Measurement Inputs	The following tables present the Company's assets and liabilities measured at fair value on a recurring basis as of December 31, 2015 and 2014 and non-recurring basis during the year ended December 31, 2015 and 2014 , aggregated by the level in the fair value hierarchy within which those measurements fall: Fair Value Measurements Using Description 2015 (Level 1) (Level 2) (Level 3) Interest rate swap assets $ 4 $ — $ 4 $ — Impaired real estate assets* $ 3,015 $ — $ — $ 3,015 Interest rate swap liabilities $ (1,943 ) $ — $ (1,943 ) $ — *Represents a non-recurring fair value measurement. Fair Value Measurements Using Description 2014 (Level 1) (Level 2) (Level 3) Interest rate swap assets $ 1,153 $ — $ 1,153 $ — Impaired real estate assets* $ 25,679 $ — $ — $ 25,679 Impaired loan receivable* $ 3,296 $ — $ — $ 3,296 Interest rate swap liabilities $ (749 ) $ — $ (749 ) $ — *Represents a non-recurring fair value measurement.
Fair Value, by Balance Sheet Grouping	The table below sets forth the carrying amounts and estimated fair values of the Company's financial instruments as of December 31, 2015 and 2014 : As of December 31, 2015 As of December 31, 2014 Carrying Amount Fair Value Carrying Amount Fair Value Assets Loans Receivable $ 95,871 $ 103,014 $ 105,635 $ 105,061 Liabilities Debt $ 2,204,199 $ 2,164,571 $ 2,092,675 $ 2,091,364

Mortgages and Notes Payable (Ta

Mortgages and Notes Payable (Tables)	12 Months Ended
	Dec. 31, 2015
Debt Instrument [Line Items]
Schedule of Line of Credit Facilities	A summary of the significant terms are as follows: Prior New Prior Current $400,000 Revolving Credit Facility (1) 02/2017 08/2019 LIBOR + 1.15% LIBOR + 1.00% $250,000 Term Loan (2) 02/2018 08/2020 LIBOR + 1.35% LIBOR + 1.10% $255,000 Term Loan (3) 01/2019 01/2021 LIBOR + 1.75% LIBOR + 1.10% (1) Maturity date can be extended to August 2020 at the Company's option. The interest rate ranges from LIBOR plus 0.85% to 1.55% (previously 0.95% to 1.725% ). At December 31, 2015 , the unsecured revolving credit facility had $177,000 outstanding and availability of $223,000 , subject to covenant compliance. (2) The interest rate ranges from LIBOR plus 0.90% to 1.75% (previously 1.10% to 2.10% ). The Company previously entered into aggregate interest-rate swap agreements to fix the LIBOR component at a weighted-average rate of 1.09% through February 2018 on the $250,000 of outstanding LIBOR-based borrowings. (3) The interest rate ranges from LIBOR plus 0.90% to 1.75% (previously 1.50% to 2.25% ). The Company previously entered into aggregate interest-rate swap agreements to fix the LIBOR component at a weighted-average rate of 1.42% through January 2019 on the $255,000 of outstanding LIBOR-based borrowings.
Mortgages and Notes Payable [Member]
Debt Instrument [Line Items]
Schedule of Maturities of Long-term Debt	Scheduled principal and balloon payments for mortgages, including a held for sale property, notes payable, credit facility borrowings and term loans for the next five years and thereafter are as follows: Year ending December 31, Total 2016 $ 139,861 2017 95,505 2018 44,664 2019 283,347 2020 300,756 Thereafter 709,192 $ 1,573,325

Senior Notes, Convertible Not39

Senior Notes, Convertible Notes and Trust Preferred Securities (Tables)	12 Months Ended
	Dec. 31, 2015
Debt Instrument [Line Items]
Debt Instrument Redemption	The Company had the following Senior Notes outstanding as of December 31, 2015 : Issue Date Face Amount Interest Rate Maturity Date Issue Price May 2014 $ 250,000 4.40 % June 2024 99.883 % June 2013 250,000 4.25 % June 2023 99.026 % $ 500,000
Schedule of Long-term Debt Instruments	Below is a summary of additional disclosures related to the 6.00% Convertible Guaranteed Notes. 6.00% Convertible Guaranteed Notes Balance Sheets: December 31, 2015 December 31, 2014 Principal amount of debt component $ 12,400 $ 16,228 Unamortized discount (220 ) (564 ) Carrying amount of debt component $ 12,180 $ 15,664 Carrying amount of equity component $ (34,784 ) $ (33,160 ) Effective interest rate 7.8 % 8.1 % Period through which discount is being amortized, put date 01/2017 01/2017 Aggregate if-converted value in excess of aggregate principal amount $ 2,863 $ 10,432 Statements of Operations: 2015 2014 2013 6.00% Convertible Guaranteed Notes Coupon interest $ 765 $ 1,545 $ 2,296 Discount amortization 228 438 658 $ 993 $ 1,983 $ 2,954
Senior Notes, Convertible Notes, Exchangeable Notes, and Trust Preferred Securities [Member]
Debt Instrument [Line Items]
Schedule of Maturities of Long-term Debt	Scheduled principal payments for these debt instruments for the next five years and thereafter are as follows: Year ending December 31, Total 2016 $ — 2017 (1) 12,400 2018 — 2019 — 2020 — Thereafter 629,120 641,520 Debt discounts (2,273 ) $ 639,247 (1) Although the 6.00% Convertible Guaranteed Notes mature in 2030, the notes can be put to the Company in 2017.

Derivatives and Hedging Activ40

Derivatives and Hedging Activities (Tables)	12 Months Ended
	Dec. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments	As of December 31, 2015 , 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 10 $505,000
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	The table below presents the fair value of the Company's derivative financial instruments as well as their classification on the Consolidated Balance Sheets as of December 31, 2015 and 2014 . As of December 31, 2015 As of December 31, 2014 Balance Sheet Location Fair Value Balance Sheet Location Fair Value Derivatives designated as hedging instruments: Interest Rate Swap Asset Other Assets $ 4 Other Assets $ 1,153 Interest Rate Swap Liability Accounts Payable and Other Liabilities $ (1,943 ) Accounts Payable and Other Liabilities $ (749 )
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance	The tables below present the effect of the Company's derivative financial instruments on the Consolidated Statements of Operations for 2015 and 2014 : Derivatives in Cash Flow Amount of Loss Recognized Location of Loss Reclassified from Accumulated OCI into Income (Effective Portion) Amount of Loss Reclassified Hedging Relationships 2015 2014 2015 2014 Interest Rate Swap $ (7,809 ) $ (9,560 ) Interest expense $ 5,466 $ 5,525

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2015
Leases [Abstract]
Schedule of Future Minimum Rental Payments Receivable for Operating Leases	Minimum future rental receipts under the non-cancelable portion of tenant leases, assuming no new or re-negotiated leases, for the next five years and thereafter are as follows: Year ending December 31, Total 2016 $ 347,551 2017 328,659 2018 310,051 2019 282,296 2020 249,528 Thereafter 6,654,870 $ 8,172,955
Schedule of Future Minimum Rental Payments for Operating Leases	Minimum future rental payments under non-cancelable leasehold interests, excluding leases held through industrial revenue bonds and lease payments in the future that are based upon fair market value, for the next five years and thereafter are as follows: Year ending December 31, Total 2016 $ 5,032 2017 4,987 2018 4,819 2019 4,313 2020 4,306 Thereafter 34,346 $ 57,803

Equity (Tables)

Equity (Tables)	12 Months Ended
	Dec. 31, 2015
Equity [Abstract]
Stock Redemptions and Retirements	During 2013, the Company redeemed and retired the following shares of its preferred stock: 2013 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 cost and historical GAAP cost. Accordingly, net income was adjusted for the deemed dividends to arrive at net income (loss) attributable to common shareholders.
Accumulated Other Comprehensive Income Loss	Changes in Accumulated Other Comprehensive Income (Loss) Gains and Losses on Cash Flow Hedges Balance December 31, 2014 $ 404 Other comprehensive loss before reclassifications (7,809 ) Amounts of loss reclassified from accumulated other comprehensive income to interest expense 5,466 Balance December 31, 2015 $ (1,939 )
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 2015 2014 2013 Net income attributable to Lexington Realty Trust shareholders $ 111,703 $ 93,104 $ 1,630 Transfers from noncontrolling interests: Increase (decrease) in additional paid-in-capital for redemption of noncontrolling OP units 165 (858 ) 1,053 Change from net income attributable to shareholders and transfers from noncontrolling interests $ 111,868 $ 92,246 $ 2,683

Benefit Plans (Tables)

Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2015
Employee Benefits and Share-based Compensation [Abstract]
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions	The more significant assumptions underlying the determination of fair value for options granted were as follows: 2010 Options 2009 Options 2008 Options Weighted-average fair value of options granted $ 1.94 $ 2.19 $ 1.24 Weighted-average risk-free interest rate 2.54 % 3.29 % 1.33 % Weighted-average expected option lives (in years) 6.50 6.70 3.60 Weighted-average expected volatility 49.00 % 59.08 % 59.94 % Weighted-average expected dividend yield 7.40 % 6.26 % 14.40 %
Schedule of Share-based Compensation, Stock Options, Activity	Share option activity during the years indicated is as follows: Number of Shares Weighted-Average Exercise Price Per Share Balance at December 31, 2012 3,480,080 $ 6.44 Exercised (1,519,179 ) 5.77 Forfeited (5,200 ) 7.47 Balance at December 31, 2013 1,955,701 6.95 Exercised (594,791 ) 6.71 Forfeited (10,500 ) 7.46 Balance at December 31, 2014 and 2015 1,350,410 $ 7.05
Schedule of Nonvested Share Activity	Non-vested share activity for the years ended December 31, 2015 and 2014 , is as follows: Number of Shares Weighted-Average Value Per Share Balance at December 31, 2013 2,521,046 $ 10.46 Vested (537,003 ) 9.16 Forfeited (13,658 ) 9.96 Balance at December 31, 2014 1,970,385 10.82 Granted 812,679 7.70 Vested (413,714 ) 11.95 Balance at December 31, 2015 2,369,350 $ 9.55

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Schedule of Components of Income Tax Expense (Benefit)	The Company's provision for income taxes for the years ended December 31, 2015 , 2014 and 2013 is summarized as follows: 2015 2014 2013 Current: Federal $ — $ 145 $ (1,445 ) State and local (645 ) (1,130 ) (1,593 ) NOL utilized — — 586 Deferred: Federal 59 (91 ) (595 ) State and local 18 (33 ) (130 ) $ (568 ) $ (1,109 ) $ (3,177 )
Statutory Accounting Practices Disclosure	The income tax provision differs from the amount computed by applying the statutory federal income tax rate to pre-tax operating income as follows: 2015 2014 2013 Federal provision at statutory tax rate (34%) $ 65 $ (43 ) $ 164 State and local taxes, net of federal benefit 12 (9 ) 22 Other (645 ) (1,057 ) (3,363 ) $ (568 ) $ (1,109 ) $ (3,177 )
Summary of Average Taxable Nature of Dividends	A summary of the average taxable nature of the Company's common dividends for each of the years in the three-year period ended December 31, 2015 , is as follows: 2015 2014 2013 Total dividends per share $ 0.68 $ 0.67 $ 0.60 Ordinary income 63.07 % 49.44 % 35.53 % Qualifying dividend — 0.05 % 4.11 % Capital gain — — 2.09 % Return of capital 36.93 % 50.51 % 58.27 % 100.00 % 100.00 % 100.00 % A summary of the average taxable nature of the Company's dividend on shares of its Series C Preferred for each of the years in the three-year period ended December 31, 2015 , is as follows: 2015 2014 2013 Total dividends per share $ 3.25 $ 3.25 $ 3.25 Ordinary income 100.00 % 99.90 % 85.14 % Qualifying dividend — 0.10 % 9.85 % Capital gain — — 5.01 % Return of capital — — — % 100.00 % 100.00 % 100.00 % A summary of the average taxable nature of the Company's dividend on shares of its Series D Cumulative Redeemable Preferred Stock for the years in the three-year period ended December 31, 2015 , is as follows: 2015 2014 2013 Total dividends per share $ — $ — $ 1.043368 Ordinary income — — 85.14 % Qualifying dividend — — 9.85 % Capital gain — — 5.01 % Return of capital — — — % — — 100.00 %

Unaudited Quarterly Financial45

Unaudited Quarterly Financial Data (Tables)	12 Months Ended
	Dec. 31, 2015
Quarterly Financial Information Disclosure [Abstract]
Schedule of Quarterly Financial Information	2015 3/31/2015 6/30/2015 9/30/2015 12/31/2015 Total gross revenues $ 108,442 $ 110,333 $ 105,438 $ 106,626 Net income (loss) $ 34,371 $ 50,207 $ (5,200 ) $ 35,513 Net income (loss) attributable to common shareholders $ 31,829 $ 47,654 $ (7,629 ) $ 33,229 Net income (loss) attributable to common shareholders - basic per share $ 0.14 $ 0.20 $ (0.03 ) $ 0.14 Net income (loss) attributable to common shareholders - diluted per share $ 0.14 $ 0.20 $ (0.03 ) $ 0.14 2014 3/31/2014 6/30/2014 9/30/2014 12/31/2014 Total gross revenues(1) $ 104,016 $ 105,447 $ 106,572 $ 107,783 Net income $ 1,814 $ 15,287 $ 42,177 $ 38,185 Net income (loss) attributable to common shareholders $ (839 ) $ 12,743 $ 38,720 $ 35,700 Net income (loss) attributable to common shareholders - basic per share $ — $ 0.05 $ 0.17 $ 0.15 Net income (loss) attributable to common shareholders - diluted per share $ — $ 0.05 $ 0.17 $ 0.15 _____________ (1) All periods have been adjusted to reflect the impact of properties sold during the years ended December 31, 2014 , and properties classified as held for sale as of December 31, 2014 , which are reflected in discontinued operations in the Consolidated Statements of Operations.

The Company (Details)

The Company (Details)	Dec. 31, 2015stateProperty
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of consolidated properties | Property	215
Number of states in which entity has interests | state	40

Summary of Significant Accoun47

Summary of Significant Accounting Policies (Details)	12 Months Ended
	Dec. 31, 2015segment
Property, Plant and Equipment [Line Items]
Vesting period (in years)	5 years
Expiration period of options	10 years
Number of operating segments	1
Building and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Maximum useful life of PPE (in years)	40 years

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
BASIC
Income (loss) from continuing operations attributable to common shareholders									$ 103,418	$ 37,652	$ (38,506)
Income from discontinued operations attributable to common shareholders									1,682	48,672	24,417
Net income (loss) attributable to common shareholders									$ 105,100	$ 86,324	$ (14,089)
Weighted-average common shares outstanding - basic (in shares)									233,455,056	228,966,253	209,797,238
Income (loss) from continuing operations, basic (usd per share)									$ 0.44	$ 0.17	$ (0.18)
Income (loss) from discontinued operations, basic (usd per share)									0.01	0.21	0.11
Net income (loss) attributable to common shareholders, basic (usd per share)	$ 0.14	$ (0.03)	$ 0.20	$ 0.14	$ 0.15	$ 0.17	$ 0.05	$ 0	$ 0.45	$ 0.38	$ (0.07)
DILUTED:
Impact of assumed conversions									$ 0	$ 0	$ 0
Income (loss) from continuing operations attributable to common shareholders									103,418	37,652	(38,506)
Income from discontinued operations									1,682	48,672	24,417
Impact of assumed conversions:									0	0	0
Income from discontinued operations attributable to common shareholders									1,682	48,672	24,417
Net income (loss) attributable to common shareholders									$ 105,100	$ 86,324	$ (14,089)
Weighted-average common shares outstanding - basic (in shares)									233,455,056	228,966,253	209,797,238
Effect of dilutive securities:
Share Options (in shares)									296,719	470,455	0
Weighted-average common shares outstanding (in shares)									233,751,775	229,436,708	209,797,238
Income (loss) per common share:
Income (loss) from continuing operations, diluted (usd per share)									$ 0.44	$ 0.17	$ (0.18)
Income (loss) from discontinued operations, diluted (usd per share)									0.01	0.21	0.11
Net income (loss) attributable to common shareholders, diluted (usd per share)	$ 0.14	$ (0.03)	$ 0.20	$ 0.14	$ 0.15	$ 0.17	$ 0.05	$ 0	$ 0.45	$ 0.38	$ (0.07)

Investments in Real Estate an49

Investments in Real Estate and Real Estate Under Construction - Schedule of Net Real Estate (Details) - USD ($) $ in Thousands		Dec. 31, 2015	Dec. 31, 2014
Investments in Real Estate and Real Estate Under Construction [Line Items]
Buildings and building improvements		$ 3,032,457	$ 2,895,585
Land, land estates and land improvements		743,125	755,168
Fixtures and equipment		5,577	5,861
Construction in progress		8,552	14,946
Real estate - intangible assets		692,778	705,566
Investments in real estate under construction		95,402	106,238
Real estate, gross		4,577,891	4,483,364
Accumulated depreciation and amortization	[1]	(1,179,969)	(1,196,114)
Real estate, net		3,397,922	3,287,250
Accumulated amortization		367,762	400,628
Amortization expense, next 12 months		34,418
Amortization expense, year 2		30,561
Amortization expense, year 3		26,215
Amortization expense, year 4		20,943
Amortization expense, year 5		16,722
Leases, Acquired-in-Place [Member]
Investments in Real Estate and Real Estate Under Construction [Line Items]
Real estate - intangible assets		513,564	473,377
Tenant Relationships [Member]
Investments in Real Estate and Real Estate Under Construction [Line Items]
Real estate - intangible assets		123,796	133,796
Above Market Leases [Member]
Investments in Real Estate and Real Estate Under Construction [Line Items]
Real estate - intangible assets		$ 55,418	$ 98,393
[1]	Includes accumulated amortization of real estate intangible assets of $367,762 and $400,628 in 2015 and 2014, respectively. The estimated amortization of the above real estate intangible assets for the next five years is $34,418 in 2016, $30,561 in 2017, $26,215 in 2018, $20,943 in 2019 and $16,722 in 2020.

Investments in Real Estate an50

Investments in Real Estate and Real Estate Under Construction - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Investments in Real Estate and Real Estate Under Construction [Line Items]
Below-market leases, net of accretion	$ 28,967	$ 54,414
Future accretion, year 1	2,327
Future accretion, year 2	1,978
Future accretion, year 3	1,970
Future accretion, year 4	1,663
Future accretion, year 5	1,494
Acquisition related costs	2,404	1,901
Investments in real estate under construction	95,402	106,238
Development Deals [Member]
Investments in Real Estate and Real Estate Under Construction [Line Items]
Capitalized interest	$ 2,726	$ 2,828

Investments in Real Estate an51

Investments in Real Estate and Real Estate Under Construction - Schedule of Acquired Properties (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Investments in Real Estate and Real Estate Under Construction [Line Items]
Initial Cost Basis	$ 491,102	$ 212,313
Land and Land Estate	33,799	33,621
Building and Improvements	387,222	142,247
Lease in-place Value	$ 70,081	$ 36,445
Leases, Acquired-in-Place [Member]
Investments in Real Estate and Real Estate Under Construction [Line Items]
Weighted-average life of intangible assets (years)	16 years 9 months 18 days	37 years 6 months
Land / Infrastructure [Member] | Venice, Florida [Member]
Investments in Real Estate and Real Estate Under Construction [Line Items]
Initial Cost Basis	$ 16,850
Land and Land Estate	4,696
Building and Improvements	11,753
Lease in-place Value	401
Office Property [Member] | Auburn Hill, Michigan [Member]
Investments in Real Estate and Real Estate Under Construction [Line Items]
Initial Cost Basis	40,025
Land and Land Estate	4,416
Building and Improvements	30,012
Lease in-place Value	5,597
Office Property [Member] | Richmond, Virginia [Member]
Investments in Real Estate and Real Estate Under Construction [Line Items]
Initial Cost Basis	109,544
Land and Land Estate	7,331
Building and Improvements	88,021
Lease in-place Value	14,192
Office Property [Member] | Parachute, Colorado [Member]
Investments in Real Estate and Real Estate Under Construction [Line Items]
Initial Cost Basis		$ 13,928
Land and Land Estate		1,400
Building and Improvements		10,751
Lease in-place Value		1,777
Office Property [Member] | Rock Hill, South Carolina [Member]
Investments in Real Estate and Real Estate Under Construction [Line Items]
Initial Cost Basis		24,715
Land and Land Estate		1,601
Building and Improvements		18,989
Lease in-place Value		4,125
Industrial Property [Member] | Houston, Texas [Member]
Investments in Real Estate and Real Estate Under Construction [Line Items]
Initial Cost Basis	28,650
Land and Land Estate	4,674
Building and Improvements	19,540
Lease in-place Value	4,436
Industrial Property [Member] | Brookshire, Texas [Member]
Investments in Real Estate and Real Estate Under Construction [Line Items]
Initial Cost Basis	22,450
Land and Land Estate	2,388
Building and Improvements	16,614
Lease in-place Value	3,448
Industrial Property [Member] | Canton, Mississippi [Member]
Investments in Real Estate and Real Estate Under Construction [Line Items]
Initial Cost Basis	89,300
Land and Land Estate	5,077
Building and Improvements	71,289
Lease in-place Value	12,934
Industrial Property [Member] | Thomson, Georgia [Member]
Investments in Real Estate and Real Estate Under Construction [Line Items]
Initial Cost Basis	10,144
Land and Land Estate	909
Building and Improvements	7,746
Lease in-place Value	1,489
Industrial Property [Member] | Oak Creek, Wisconsin [Member]
Investments in Real Estate and Real Estate Under Construction [Line Items]
Initial Cost Basis	22,139
Land and Land Estate	3,015
Building and Improvements	15,300
Lease in-place Value	3,824
Industrial Property [Member] | Richland, Washington [Member]
Investments in Real Estate and Real Estate Under Construction [Line Items]
Initial Cost Basis	152,000
Land and Land Estate	1,293
Building and Improvements	126,947
Lease in-place Value	$ 23,760
Industrial Property [Member] | Rantoul, Illinois [Member]
Investments in Real Estate and Real Estate Under Construction [Line Items]
Initial Cost Basis		41,277
Land and Land Estate		1,304
Building and Improvements		32,562
Lease in-place Value		7,411
Industrial Property [Member] | Lewisburg, Tennessee [Member]
Investments in Real Estate and Real Estate Under Construction [Line Items]
Initial Cost Basis		13,320
Land and Land Estate		173
Building and Improvements		10,865
Lease in-place Value		2,282
Industrial Property [Member] | North Las Vegas, Nevada [Member]
Investments in Real Estate and Real Estate Under Construction [Line Items]
Initial Cost Basis		28,249
Land and Land Estate		3,244
Building and Improvements		21,444
Lease in-place Value		3,561
Industrial Property [Member] | Bingen, Washington [Member]
Investments in Real Estate and Real Estate Under Construction [Line Items]
Initial Cost Basis		20,391
Land and Land Estate		0
Building and Improvements		18,075
Lease in-place Value		2,316
Industrial Property [Member] | Anniston, Alabama [Member]
Investments in Real Estate and Real Estate Under Construction [Line Items]
Initial Cost Basis		20,907
Land and Land Estate		1,201
Building and Improvements		16,771
Lease in-place Value		2,935
Land [Member] | New York, New York [Member]
Investments in Real Estate and Real Estate Under Construction [Line Items]
Initial Cost Basis		30,426
Land and Land Estate		22,000
Building and Improvements		0
Lease in-place Value		8,426
Rehabilitation Hospital [Member] | Vineland, New Jersey [Member]
Investments in Real Estate and Real Estate Under Construction [Line Items]
Initial Cost Basis		19,100
Land and Land Estate		2,698
Building and Improvements		12,790
Lease in-place Value		$ 3,612

Investments in Real Estate an52

Investments in Real Estate and Real Estate Under Construction - Schedule of Development Arrangements Outstanding (Details) ft² in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2015USD ($)ft²	Dec. 31, 2014USD ($)
Investments in Real Estate and Real Estate Under Construction [Line Items]
Square Feet | ft²	2,190
Expected Maximum Commitment/Contribution	$ 298,621
Investments in real estate under construction	$ 95,402	$ 106,238
Industrial Property [Member] | Anderson, South Carolina [Member]
Investments in Real Estate and Real Estate Under Construction [Line Items]
Square Feet | ft²	1,325
Expected Maximum Commitment/Contribution	$ 70,012
Lease Term (Years)	20 years
Investments in real estate under construction	$ 23,826
Office Building [Member] | Lake Jackson, Texas [Member]
Investments in Real Estate and Real Estate Under Construction [Line Items]
Square Feet | ft²	664
Expected Maximum Commitment/Contribution	$ 166,164
Lease Term (Years)	20 years
Investments in real estate under construction	$ 62,353
Office Building [Member] | Charlotte, North Carolina [Member]
Investments in Real Estate and Real Estate Under Construction [Line Items]
Square Feet | ft²	201
Expected Maximum Commitment/Contribution	$ 62,445
Lease Term (Years)	15 years
Investments in real estate under construction	$ 9,223

Property Dispositions and Dis53

Property Dispositions and Discontinued Operations - Additional Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2015USD ($)Property	Dec. 31, 2014USD ($)	Dec. 31, 2013USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Debt satisfaction gains (charges), net	$ 0	$ (312)	$ 8,905
Aggregate net disposition price	156,461	226,375	75,519
Aggregate gain on sale of properties	$ 24,884	$ 57,507	$ 24,472
Properties classified as held-for-sale (in number of properties) | Property	2
Debt Satisfaction Gains (Charges), Net [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Debt satisfaction gains (charges), net	$ 21,504

Property Dispositions and Dis54

Property Dispositions and Discontinued Operations - Schedule of Properties Held for Sale (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Discontinued Operations and Disposal Groups [Abstract]
Real estate, at cost	$ 16,590
Real estate, intangible assets	10,786
Accumulated depreciation and amortization	(4,069)
Deferred rent receivable	1,118
Assets held for sale	24,425	$ 3,379
Other	32
Mortgage payable	8,373
Liabilities held for sale	$ 8,405	$ 2,843

Impairment of Real Estate Inv55

Impairment of Real Estate Investments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Continuing Operations [Member]
Real Estate Properties [Line Items]
Impairment charges on real estate	$ 36,832	$ 34,833	$ 21,640
Discontinued Operations [Member]
Real Estate Properties [Line Items]
Impairment charges on real estate		$ 13,767	$ 12,920

Loans Receivable (Details)

Loans Receivable (Details) $ in Thousands		1 Months Ended	12 Months Ended
		Dec. 31, 2014USD ($)	Dec. 31, 2015USD ($)class_of_financing	Dec. 31, 2014USD ($)	Dec. 31, 2013USD ($)portfolio_segmenttype_of_financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable, net amount	[1]	$ 105,635	$ 95,871	$ 105,635
Number of types of financing receivable | type_of_financing					2
Number of portfolio segments | portfolio_segment					1
Net proceeds from sale of properties			$ 156,461	237,866	$ 75,519
Number of classes of financing receivable | class_of_financing			1
Westmont, Illinios [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable, net amount	[1],[2]	12,152	$ 0	$ 12,152
Interest Rate	[2]		6.45%	6.45%
Cash acquired through foreclosure			$ 2,521
Litigation settlement, amount			1,400
Loan losses					13,939
Impaired interest income				$ 1,284	$ 1,737
Southfield, Michigan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable, net amount	[1],[3]	3,296	$ 0	$ 3,296
Interest Rate	[3]		4.55%	4.55%
Loan losses				$ 2,500
Impaired interest income			$ 14	468
Oklahoma City, Oklahoma [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable, net amount	[1],[4]	0	$ 8,501	0
Interest Rate	[4]		11.50%
Oklahoma City, Oklahoma [Member] | Tenant-in-Common [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable, net amount			$ 8,420
Co-venture equity ownership percentage			40.00%
Austin, Texas [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable, net amount	[1]	2,800	$ 0	$ 2,800
Interest Rate				16.00%
Kennewick, Washington [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable, net amount	[1]	85,254	$ 85,505	$ 85,254
Interest Rate			9.00%	9.00%
Other Loan Locations [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases receivable, net amount	[1]	2,133	$ 1,865	$ 2,133
Interest Rate			8.00%	8.00%
Greenville, South Carolina [Member] | Office Building [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net proceeds from sale of properties		$ 11,491
[1]	Loan carrying value includes accrued interest and is net of origination costs and loan losses, if any.
[2]	In 2015, the Company acquired the office property collateral and $2,521 of cash collateral and received $1,400 in full settlement of its claim against the borrower. The Company recognized a loan loss of $13,939 during 2013. During 2014 and 2013, the Company recognized $1,284 and $1,737, respectively, of interest income relating to the impaired loan.
[3]	In 2015, the Company acquired the office property collateral from the borrower. The Company recorded a $2,500 loan loss in 2014 as the Company determined it was probable that it would not collect the amount owed at maturity. During 2015 and 2014, the Company recognized $14 and $468, respectively, of interest income relating to the impaired loan
[4]	In 2015, the Company loaned a tenant-in-common $8,420. The loan is secured by the tenant-in-common's interest in an office property in which the Company has a 40% interest.

Fair Value Measurements - Sche

Fair Value Measurements - Schedule of Fair Value Measurements Inputs (Details) - USD ($) $ in Thousands		Dec. 31, 2015		Dec. 31, 2014
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap assets		$ 4		$ 1,153
Interest rate swap liabilities		(1,943)		(749)
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired real estate assets		3,015	[1]	25,679	[2]
Impaired loan receivable	[2]			3,296
Fair Value Measurements Using Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap assets		0		0
Interest rate swap liabilities		0		0
Fair Value Measurements Using Level 1 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired real estate assets		0		0	[2]
Impaired loan receivable	[2]			0
Fair Value Measurements Using Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap assets		4		1,153
Interest rate swap liabilities		(1,943)		(749)
Fair Value Measurements Using Level 2 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired real estate assets		0		0	[2]
Impaired loan receivable	[2]			0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap assets		0		0
Interest rate swap liabilities		0		0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired real estate assets		$ 3,015	[1]	25,679	[2]
Impaired loan receivable	[2]			$ 3,296
[1]	Represents a non-recurring fair value measurement.
[2]	Represents a non-recurring fair value measurement.

Fair Value Measurements - Fair

Fair Value Measurements - Fair Value, by Balance Sheet Grouping (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Carrying Amount [Member]
Assets
Loans Receivable	$ 95,871	$ 105,635
Liabilities
Debt	2,204,199	2,092,675
Fair Value [Member]
Assets
Loans Receivable	103,014	105,061
Liabilities
Debt	$ 2,164,571	$ 2,091,364

Investment in and Advances to59

Investment in and Advances to Non-Consolidated Entities (Details) - USD ($) $ in Thousands	1 Months Ended		12 Months Ended
	Oct. 31, 2014	Aug. 31, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Investments in and Advances to Affiliates [Line Items]
Non-recourse debt			$ 47,621
Payments to acquire equity method investments			18,900	$ 2,948	$ 8,193
Houston, Texas [Member]
Investments in and Advances to Affiliates [Line Items]
Payments to acquire equity method investments			8,519
Anticipated construction cost			86,491
Maximum construction financing			56,686
Baltimore, Maryland [Member]
Investments in and Advances to Affiliates [Line Items]
Payments to acquire equity method investments		$ 5,000
Tenant-in-Common [Member] | Oklahoma City, Oklahoma [Member]
Investments in and Advances to Affiliates [Line Items]
Payments to acquire equity method investments			$ 5,613
Joint Venture [Member] | Houston, Texas [Member]
Investments in and Advances to Affiliates [Line Items]
Co-venture equity ownership percentage			25.00%
Lease term (years)			20 years
Other Nonconsolidated Entity [Member]
Investments in and Advances to Affiliates [Line Items]
Other than temporary impairment				930	925
Realized gain (loss) on disposal	$ 87
Mortgages [Member]
Investments in and Advances to Affiliates [Line Items]
Stated percentage rate range, minimum			3.70%
Stated percentage rate range, maximum			4.70%
Lexington Realty Trust [Member]
Investments in and Advances to Affiliates [Line Items]
Non-recourse debt			$ 8,591
Lexington Reality Advisors Inc [Member]
Investments in and Advances to Affiliates [Line Items]
Investment advisory fees			$ 223	$ 348	$ 512
Minimum [Member]
Investments in and Advances to Affiliates [Line Items]
Co-venture equity ownership percentage			15.00%
Maximum [Member]
Investments in and Advances to Affiliates [Line Items]
Co-venture equity ownership percentage			40.00%

Mortgages and Notes Payable - C

Mortgages and Notes Payable - Credit Agreement Terms (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Line of Credit Facility [Line Items]
Credit facility borrowings	$ 177,000,000	$ 0
Remaining borrowing capacity	$ 223,000,000
Weighted-average interest rate	4.90%	5.20%
Unsecured Revolving Credit Facility, Expiring August 2019 [Member] | Unsecured Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Face Amount	$ 400,000,000
Credit facility borrowings	177,000,000
Unsecured Term Loan, Expiring August 2020 [Member] | Unsecured Term Loan [Member]
Line of Credit Facility [Line Items]
Face Amount	$ 250,000,000
Unsecured Term Loan, Expiring February 2018 [Member] | Interest Rate Swap [Member]
Line of Credit Facility [Line Items]
Weighted-average interest rate	1.09%
Unsecured Term Loan, Expiring February 2018 [Member] | Unsecured Term Loan [Member]
Line of Credit Facility [Line Items]
Repayments of principal in year five	$ 250,000,000
Unsecured Term Loan, Expiring January 2021 [Member] | Unsecured Term Loan [Member]
Line of Credit Facility [Line Items]
Face Amount	$ 255,000,000
Unsecured Term Loan, Expiring January 2019 [Member] | Interest Rate Swap [Member]
Line of Credit Facility [Line Items]
Weighted-average interest rate	1.42%
Unsecured Term Loan, Expiring January 2019 [Member] | Unsecured Term Loan [Member]
Line of Credit Facility [Line Items]
Face Amount	$ 255,000,000
London Interbank Offered Rate (LIBOR) [Member] | Unsecured Revolving Credit Facility, Expiring August 2019 [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Interest rate stated percentage rate range minimum excluding LIBOR	0.85%
London Interbank Offered Rate (LIBOR) [Member] | Unsecured Revolving Credit Facility, Expiring August 2019 [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Interest rate stated percentage rate range minimum excluding LIBOR	1.55%
London Interbank Offered Rate (LIBOR) [Member] | Unsecured Revolving Credit Facility, Expiring August 2019 [Member] | Unsecured Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Basis spread on variable at the end of the period	1.00%
London Interbank Offered Rate (LIBOR) [Member] | Unsecured Revolving Credit Facility, Expiring February 2017 [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Interest rate stated percentage rate range minimum excluding LIBOR	0.95%
London Interbank Offered Rate (LIBOR) [Member] | Unsecured Revolving Credit Facility, Expiring February 2017 [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Interest rate stated percentage rate range minimum excluding LIBOR	1.725%
London Interbank Offered Rate (LIBOR) [Member] | Unsecured Revolving Credit Facility, Expiring February 2017 [Member] | Unsecured Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Basis spread on variable at the end of the period	1.15%
London Interbank Offered Rate (LIBOR) [Member] | Unsecured Term Loan, Expiring August 2020 [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Interest rate stated percentage rate range minimum excluding LIBOR	0.90%
London Interbank Offered Rate (LIBOR) [Member] | Unsecured Term Loan, Expiring August 2020 [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Interest rate stated percentage rate range minimum excluding LIBOR	1.75%
London Interbank Offered Rate (LIBOR) [Member] | Unsecured Term Loan, Expiring August 2020 [Member] | Unsecured Term Loan [Member]
Line of Credit Facility [Line Items]
Basis spread on variable at the end of the period	1.10%
London Interbank Offered Rate (LIBOR) [Member] | Unsecured Term Loan, Expiring February 2018 [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Interest rate stated percentage rate range minimum excluding LIBOR	1.10%
London Interbank Offered Rate (LIBOR) [Member] | Unsecured Term Loan, Expiring February 2018 [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Interest rate stated percentage rate range minimum excluding LIBOR	2.10%
London Interbank Offered Rate (LIBOR) [Member] | Unsecured Term Loan, Expiring February 2018 [Member] | Unsecured Term Loan [Member]
Line of Credit Facility [Line Items]
Basis spread on variable at the end of the period	1.35%
London Interbank Offered Rate (LIBOR) [Member] | Unsecured Term Loan, Expiring January 2021 [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Interest rate stated percentage rate range minimum excluding LIBOR	0.90%
London Interbank Offered Rate (LIBOR) [Member] | Unsecured Term Loan, Expiring January 2021 [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Interest rate stated percentage rate range minimum excluding LIBOR	1.75%
London Interbank Offered Rate (LIBOR) [Member] | Unsecured Term Loan, Expiring January 2021 [Member] | Unsecured Term Loan [Member]
Line of Credit Facility [Line Items]
Basis spread on variable at the end of the period	1.10%
London Interbank Offered Rate (LIBOR) [Member] | Unsecured Term Loan, Expiring January 2019 [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Interest rate stated percentage rate range minimum excluding LIBOR	1.50%
London Interbank Offered Rate (LIBOR) [Member] | Unsecured Term Loan, Expiring January 2019 [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Interest rate stated percentage rate range minimum excluding LIBOR	2.25%
London Interbank Offered Rate (LIBOR) [Member] | Unsecured Term Loan, Expiring January 2019 [Member] | Unsecured Term Loan [Member]
Line of Credit Facility [Line Items]
Basis spread on variable at the end of the period	1.75%

Mortgages and Notes Payable - A

Mortgages and Notes Payable - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Sep. 30, 2015
Debt Instrument [Line Items]
Mortgages and notes payable	$ 882,952,000	$ 945,216,000
Weighted-average interest rate	4.90%	5.20%
Gains (charges) on debt satisfaction from continuing operations	$ 4,122,000	$ (7,016,000)	$ (11,811,000)
Interest paid, capitalized	$ 6,062,000	$ 3,441,000	$ 2,397,000
Unsecured Credit Agreement [Member] | Unsecured Debt [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity				$ 905,000,000
Line of credit facility, maximum borrowing capacity with lender approval				$ 1,810,000,000
Minimum [Member]
Debt Instrument [Line Items]
Effective interest rate	2.20%	2.20%
Maximum [Member]
Debt Instrument [Line Items]
Effective interest rate	7.80%	8.50%

Mortgages and Notes Payable - M

Mortgages and Notes Payable - Maturities of Long-term Debt (Details) - Mortgages and Notes Payable [Member] $ in Thousands	Dec. 31, 2015USD ($)
Debt Instrument [Line Items]
2,016	$ 139,861
2,017	95,505
2,018	44,664
2,019	283,347
2,020	300,756
Thereafter	709,192
Long-term debt	$ 1,573,325

Senior Notes, Convertible Not63

Senior Notes, Convertible Notes and Trust Preferred Securities - Schedule of Maturities of Long-term Debt (Details) - Senior Notes, Convertible Notes, Exchangeable Notes, and Trust Preferred Securities [Member] $ in Thousands	Dec. 31, 2015USD ($)
Debt Instrument [Line Items]
2,016	$ 0
2,017	12,400	[1]
2,018	0
2,019	0
2,020	0
Thereafter	629,120
Long-term debt, gross	641,520
Debt discounts	(2,273)
Long-term debt	$ 639,247
[1]	Although the 6.00% Convertible Guaranteed Notes mature in 2030, the notes can be put to the Company in 2017.

Senior Notes, Convertible Not64

Senior Notes, Convertible Notes and Trust Preferred Securities - Narrative (Details)	12 Months Ended
	Dec. 31, 2015USD ($)$ / sharesshares	Dec. 31, 2014USD ($)shares	Dec. 31, 2013USD ($)shares	Dec. 31, 2010USD ($)	Dec. 31, 2007USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percent of notes required to be repurchased at the option of the holders on set dates				100.00%
Converted instrument, amount	$ 3,828,000	$ 12,763,000	$ 54,905,000
Issuance of common shares upon conversion of Convertible Notes (in shares) | shares	519,664	1,904,542	7,944,673
Repayments of convertible debt	$ 529,000	$ 233,000	$ 3,270,000
Debt satisfaction expense	476,000	2,436,000	$ 13,536,000
6.00% Convertible Guaranteed Note [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Face Amount	$ 12,400,000	16,228,000		$ 115,000,000
Debt interest rate percentage				6.00%
Convertible debt conversion ratio	0.1565514
Convertible debt conversion price | $ / shares	$ 6.39
6.804% Trust Preferred Securities [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Face Amount					$ 200,000,000
Debt interest rate percentage					6.804%
Principal amount outstanding on Trust Preferred Securities	$ 129,120,000	$ 129,120,000
6.804% Trust Preferred Securities [Member] | London Interbank Offered Rate (LIBOR) [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Basis spread on variable rate					1.70%

Senior Notes, Convertible Not65

Senior Notes, Convertible Notes and Trust Preferred Securities - Schedule of Long-term Debt Instruments (Details) - 6.00% Convertible Guaranteed Note [Member] - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2010
Debt Instrument [Line Items]
Debt interest rate percentage				6.00%
Principal amount of debt component	$ 12,400,000	$ 16,228,000		$ 115,000,000
Unamortized discount	(220,000)	(564,000)
Carrying amount of debt component	12,180,000	15,664,000
Carrying amount of equity component	$ (34,784,000)	$ (33,160,000)
Effective interest rate	7.80%	8.10%
Aggregate if-converted value in excess of aggregate principal amount	$ 2,863,000	$ 10,432,000
Coupon interest	765,000	1,545,000	$ 2,296,000
Discount amortization	228,000	438,000	658,000
Interest Expense	$ 993,000	$ 1,983,000	$ 2,954,000

Senior Notes, Convertible Not66

Senior Notes, Convertible Notes and Trust Preferred Securities - Schedule of Debt Instrument Redemptions (Details)	Dec. 31, 2015USD ($)
Senior Notes [Member]
Debt Instrument, Redemption [Line Items]
Face Amount	$ 500,000,000
4.40% Senior Note [Member] | Senior Notes Due 2024 [Member]
Debt Instrument, Redemption [Line Items]
Face Amount	$ 250,000,000
Interest Rate	4.40%
Issue Price	99.883%
4.25% Senior Note [Member] | Senior Notes Due 2023 [Member]
Debt Instrument, Redemption [Line Items]
Face Amount	$ 250,000,000
Interest Rate	4.25%
Issue Price	99.026%

Derivatives and Hedging Activ67

Derivatives and Hedging Activities (Details)	12 Months Ended
	Dec. 31, 2015USD ($)derivative_instrument	Dec. 31, 2014USD ($)	Dec. 31, 2012USD ($)
Derivative [Line Items]
Expected amount of derivative related interest to be reclassified to interest expense over the next 12 months	$ 2,928,000
Interest Rate Swap [Member]
Derivative [Line Items]
Settlement amount			$ 3,539,000
Reclassified from AOCI into Income			$ 1,837,000
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Other Assets [Member]
Derivative [Line Items]
Derivative asset	4,000	$ 1,153,000
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Accounts Payable And Other Liabilities [Member]
Derivative [Line Items]
Derivative liabilities	(1,943,000)	(749,000)
Cash Flow Hedging [Member] | Interest Rate Swap [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Face Amount	$ 505,000,000
Number of derivative instruments held | derivative_instrument	10
Notional amount of derivatives	$ 505,000,000
Cash Flow Hedging [Member] | Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Interest Expense [Member]
Derivative [Line Items]
Reclassified from AOCI into Income	5,466,000	5,525,000
Amount of loss recognized in OCI on derivatives (effective portion)	(7,809,000)	$ (9,560,000)
Unsecured Term Loan, Expiring February 2018 [Member] | Unsecured Term Loan [Member]
Derivative [Line Items]
Repayments of principal in year five	250,000,000
Repayments of principal after year five	$ 255,000,000

Leases (Details)

Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Minimum Future Rental Receipts [Abstract]
2,016	$ 347,551
2,017	328,659
2,018	310,051
2,019	282,296
2,020	249,528
Thereafter	6,654,870
Future Minimum Payments Receivable	8,172,955
Leaseholds Interests [Member]
Future Rental Payments [Abstract]
2,016	5,032
2,017	4,987
2,018	4,819
2,019	4,313
2,020	4,306
Thereafter	34,346
Future Minimum Payments Due	57,803
Rent expense for leasehold interests	868	$ 919	$ 1,284
Corporate HQ and Office Space [Member]
Future Rental Payments [Abstract]
2,016	467
2,017	1,243
2,018	1,224
2,019	1,224
2,020	1,224
Thereafter	6,795
Rent expense for leasehold interests	$ 1,435	$ 1,356	$ 1,338

Concentration of Risk (Details)

Concentration of Risk (Details) - tenant	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Concentration Risk [Line Items]
Number of tenants representing more than 10% of rental revenue	0	0	0
Tenant Concentration Risk [Member] | Sales Revenue, Net [Member] | Maximum [Member]
Concentration Risk [Line Items]
Concentration risk percentage	10.00%	10.00%	10.00%

Equity - Additional Informatio

Equity - Additional Information (Details) - USD ($)	1 Months Ended			12 Months Ended
	Jul. 31, 2015	Jul. 31, 2014	Jul. 31, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Equity [Line Items]
Common shares issued through public offering and direct share purchase plan during period				2,266,191	2,600,795	36,012,313
Proceeds from issuance of common shares				$ 19,382,000	$ 23,563,000	$ 434,927,000
Shares, net of forfeitures				860,730	37,678	1,893,409
OP unit equivalent in common shares				1.13
OP units, redemptions				$ 0	$ 1,962,000	$ 0
Shares issued for units redeemed				32,780	29,086	202,241
Partners' capital account, exchanges and conversions				$ 165,000	$ 148,000	$ 1,053,000
OP units outstanding				3,393,000
Payments to acquire interest in joint venture				$ 4,022,000	$ 2,100,000	8,918,000
Joint Venture [Member] | Office Building [Member] | Philadelphia, Pennsylvania [Member]
Equity [Line Items]
Payments to acquire interest in joint venture	$ 4,022,000	$ 2,100,000
Real state, ownership percentage	100.00%
Joint Venture [Member] | Industrial Property [Member] | Long Island City, New York [Member]
Equity [Line Items]
Payments to acquire interest in joint venture			$ 8,918,000
Former LCIF II Partners [Member]
Equity [Line Items]
OP units redeemed					170,193
OP units, redemptions					$ 1,962,000
Common Stock [Member]
Equity [Line Items]
Number of shares authorized to be repurchased (in shares)	10,000,000
Repurchase of common shares (in shares)				2,216,799
Average cost per share (in dollars per share)				$ 8.29
Series C [Member]
Equity [Line Items]
Preferred shares outstanding				1,935,400	1,935,400
Dividend rate, per-dollar-amount				$ 3.25
Preferred shares, liquidation preference				$ 96,770,000
Preferred shares to common shares conversion ratio				2.4339
Series C [Member] | Minimum [Member]
Equity [Line Items]
Common share closing price percent of conversion price				125.00%
Public Offering And Direct Share Purchase Plan Proceeds [Member]
Equity [Line Items]
Proceeds from issuance of common shares				$ 20,797,000	$ 25,813,000	$ 399,566,000
At The Market [Member]
Equity [Line Items]
Common shares issued through public offering and direct share purchase plan during period				0	0	3,409,927
Value authorized						$ 100,000,000
Value, new issues						$ 36,884,000

Equity - Schedule of Stock Red

Equity - Schedule of Stock Redeemed and Retired (Details) - 7.55% Series D Cumulative Redeemable Preferred Stock [Member] - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Class of Stock [Line Items]
Shares redeemed and retired				6,200,000
Redemption costs	[1]			$ 155,621
Deemed dividend		$ 0	$ 0	$ 5,230	[2]
[1]	Includes accrued and unpaid dividends.
[2]	Represents the difference between the redemption cost and historical GAAP cost. Accordingly, net income was adjusted for the deemed dividends to arrive at net income (loss) attributable to common shareholders.

Equity - Schedule of Changes i

Equity - Schedule of Changes in AOCI (Details) - Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] $ in Thousands	12 Months Ended
	Dec. 31, 2015USD ($)
Changes in Accumulated Other Comprehensive Income
Balance December 31, 2014	$ 404
Other comprehensive loss before reclassifications	(7,809)
Amounts of loss reclassified from accumulated other comprehensive income to interest expense	5,466
Balance December 31, 2015	$ (1,939)

Equity - Schedule of Effects o

Equity - Schedule of Effects of Changes in Noncontrolling Interest (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Equity [Abstract]
Net income (loss) attributable to common shareholders	$ 33,229	$ (7,629)	$ 47,654	$ 31,829	$ 35,700	$ 38,720	$ 12,743	$ (839)	$ 111,703	$ 93,104	$ 1,630
Increase (decrease) in additional paid-in-capital for redemption of noncontrolling OP units									165	(858)	1,053
Change from net income attributable to shareholders and transfers from noncontrolling interests									$ 111,868	$ 92,246	$ 2,683

Benefit Plans - Additional Inf

Benefit Plans - Additional Information (Details) $ / shares in Units, $ in Thousands	Dec. 31, 2010$ / sharesshares	Jan. 08, 2010$ / sharesshares	Dec. 31, 2008$ / sharesshares	Dec. 31, 2015USD ($)$ / sharesshares	Dec. 31, 2014USD ($)$ / sharesshares	Dec. 31, 2013USD ($)$ / sharesshares	Dec. 31, 2012$ / sharesshares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Common share options granted (shares)				0	0	0
Recognized compensation expense | $				$ 480	$ 1,038	$ 1,037
Exercises in period, intrinsic value | $					$ 2,780	8,607
Options, exercisable, intrinsic value | $				$ 1,277
Vesting period (in years)				5 years
Shares held in employee trust (in shares)				427,531	427,531
Initial vesting percentage				25.00%
Vesting percentage				100.00%
Vesting period (in years)				4 years
Cost recognized | $				$ 333	$ 299	298
Allocated share-based compensation expense | $				$ 8,201	$ 7,550	$ 7,145
Options 2010 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Common share options granted (shares)	1,248,501
Common share options exercise price (usd per share) | $ / shares	$ 7.95
Expiration period after termination (in months)				6 months
Deferred compensation equity | $				$ 2,422
Recognized compensation expense average period (in years)				5 years
Options 2010 [Member] | Share-based Compensation Award, Tranche One [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Vesting rate	20.00%
Options 2010 [Member] | Share-based Compensation Award, Tranche Two [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Vesting rate	20.00%
Options 2010 [Member] | Share-based Compensation Award, Tranche Three [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Vesting rate	20.00%
Options 2010 [Member] | Share-based Compensation Award, Tranche Four [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Vesting rate	20.00%
Options 2010 [Member] | Share-based Compensation Award, Tranche Five [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Vesting rate	20.00%
Options 2009 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Common share options granted (shares)		1,265,500
Common share options exercise price (usd per share) | $ / shares		$ 6.39
Expiration period after termination (in months)				6 months
Deferred compensation equity | $				$ 2,771
Recognized compensation expense average period (in years)				5 years
Options 2009 [Member] | Share-based Compensation Award, Tranche One [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Vesting rate		20.00%
Options 2009 [Member] | Share-based Compensation Award, Tranche Two [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Vesting rate	20.00%
Options 2009 [Member] | Share-based Compensation Award, Tranche Three [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Vesting rate	20.00%
Options 2009 [Member] | Share-based Compensation Award, Tranche Four [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Vesting rate	20.00%
Options 2009 [Member] | Share-based Compensation Award, Tranche Five [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Vesting rate	20.00%
Options 2008 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Common share options granted (shares)			2,000,000
Common share options exercise price (usd per share) | $ / shares			$ 5.60
Number of trading period days (in days)			20 days
Options convertible to common shares			1.13
Options converted to common shares exercise price (usd per shares) | $ / shares			$ 4.97
Deferred compensation equity | $				$ 2,480
Recognized compensation expense average period (in years)				3 years 7 months 6 days
Options 2008 [Member] | Minimum [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Average closing price, lower limit (usd per share) | $ / shares			8
Options 2008 [Member] | Maximum [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Average closing price, lower limit (usd per share) | $ / shares			$ 10
Options 2008 [Member] | Share Based Compensation Arrangement By Share Based Payment Award Vesting Rate First Vesting Trigger [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Vesting rate			50.00%
Performance Shares [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Measurement period (in years)				3 years
Index shares (in shares)				321,018
Peer shares (in shares)				321,011
Number of shares granted (in shares)				170,650
Vesting period (in years)				3 years
Employee Stock Option [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Common share options exercise price (usd per share) | $ / shares				$ 7.05	$ 7.05	$ 6.95	$ 6.44
Number of shares outstanding (in shares)				1,350,410	1,350,410	1,955,701	3,480,080
Non-vested Shares [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Unrecognized compensation costs | $				$ 13,707
Number of shares granted (in shares)				812,679
Non-options, nonvested, number (in shares)				2,369,350	1,970,385	2,521,046
Number of shares available for grant (in shares)				3,320,961
Total compensation cost not yet recognized, period for recognition (in years)				3 years 3 months 18 days
Shares Subject to Time [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Non-options, nonvested, number (in shares)				1,720,824
Shares Subject to Performance [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Non-options, nonvested, number (in shares)				648,526

Benefit Plans - Assumptions Us

Benefit Plans - Assumptions Used (Details)	12 Months Ended
	Dec. 31, 2015$ / shares
Options 2010 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average fair value of options granted (usd per share)	$ 1.94
Weighted-average risk-free interest rate	2.54%
Weighted-average expected option lives (in years)	6 years 6 months
Weighted-average expected volatility	49.00%
Weighted-average expected dividend yield	7.40%
Options 2009 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average fair value of options granted (usd per share)	$ 2.19
Weighted-average risk-free interest rate	3.29%
Weighted-average expected option lives (in years)	6 years 8 months 12 days
Weighted-average expected volatility	59.08%
Weighted-average expected dividend yield	6.26%
Options 2008 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average fair value of options granted (usd per share)	$ 1.24
Weighted-average risk-free interest rate	1.33%
Weighted-average expected option lives (in years)	3 years 7 months 6 days
Weighted-average expected volatility	59.94%
Weighted-average expected dividend yield	14.40%

Benefit Plans - Share Option A

Benefit Plans - Share Option Activity (Details) - Share Options [Member] - $ / shares	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number of shares outstanding, beginning (in shares)	1,955,701	3,480,080
Number of shares exercised (in shares)		(594,791)	(1,519,179)
Number of shares forfeited (in shares)		(10,500)	(5,200)
Number of shares outstanding, ending (in shares)	1,350,410	1,955,701	3,480,080
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Price per share outstanding, beginning (in dollars per shares)	$ 6.95	$ 6.44
Price per share exercised (in dollars per shares)		6.71	$ 5.77
Exercise price per share forfeited (in dollars per shares)		7.46	7.47
Price per share outstanding, ending (in dollars per shares)	$ 7.05	$ 6.95	$ 6.44

Benefit Plans - Non-Vested Sha

Benefit Plans - Non-Vested Share Activity (Details) - Non-vested Shares [Member] - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Number of shares outstanding, beginning (in shares)	1,970,385	2,521,046
Number of shares granted (in shares)	812,679
Number of shares vested (in shares)	(413,714)	(537,003)
Number of shares forfeited (in shares)		(13,658)
Number of shares outstanding, ending (in shares)	2,369,350	1,970,385
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Value per share outstanding, beginning (in dollars per share)	$ 10.82	$ 10.46
Value per share granted (in dollars per share)	7.70
Value per share vested (in dollars per share)	11.95	9.16
Value per share forfeited (in dollars per share)		9.96
Value per share outstanding, ending (in dollars per share)	$ 9.55	$ 10.82

Related Party Transactions (Det

Related Party Transactions (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Related Party Transaction [Line Items]
Range of possible loss, maximum	$ 18,000,000
Vorando Realty Trust [Member]
Related Party Transaction [Line Items]
Rent revenue recognized	255,000	$ 255,000	$ 744,000
Rent expense for corporate headquarters	1,323,000	$ 1,252,000	$ 1,225,000
Affiliated Entity [Member]
Related Party Transaction [Line Items]
Expenses from transactions with related party	$ 7,000

Income Taxes - Components of I

Income Taxes - Components of Income Tax Provision (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current:
Federal	$ 0	$ 145	$ (1,445)
State and local	(645)	(1,130)	(1,593)
NOL utilized	0	0	586
Deferred:
Federal	59	(91)	(595)
State and local	18	(33)	(130)
Benefit (provision) for income taxes	$ (568)	$ (1,109)	$ (3,177)

Income Taxes - Additional Info

Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Taxes [Line Items]
Deferred tax assets, net	$ 59
Deferred tax liabilities, net		$ (19)
Deferred tax liability written off	0	0	$ (150)
Permanent differences	0	0	1,936
Operating loss carryforwards	146	0
State and Local Jurisdiction [Member]
Income Taxes [Line Items]
State taxes paid	$ 679	$ 1,183	$ 1,280

Income Taxes - Statutory Feder

Income Taxes - Statutory Federal Income Tax (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Federal provision at statutory tax rate (34%)	$ 65	$ (43)	$ 164
Federal tax rate	34.00%	34.00%	34.00%
State and local taxes, net of federal benefit	$ 12	$ (9)	$ 22
Other	(645)	(1,057)	(3,363)
Benefit (provision) for income taxes	$ (568)	$ (1,109)	$ (3,177)

Income Taxes - Summary of Aver

Income Taxes - Summary of Average Taxable Nature of Dividends (Details) - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Common [Member]
Income Tax Contingency [Line Items]
Total dividends per share, common (in dollars per share)	$ 0.68	$ 0.67	$ 0.6
Taxable percentage allocation on dividends	100.00%	100.00%	100.00%
Common [Member] | Ordinary Income [Member]
Income Tax Contingency [Line Items]
Taxable percentage allocation on dividends	63.07%	49.44%	35.53%
Common [Member] | 15% Rate, Qualifying Dividend [Member]
Income Tax Contingency [Line Items]
Taxable percentage allocation on dividends	0.00%	0.05%	4.11%
Common [Member] | 15% Rate Gain [Member]
Income Tax Contingency [Line Items]
Taxable percentage allocation on dividends	0.00%	0.00%	2.09%
Common [Member] | Return of Capital [Member]
Income Tax Contingency [Line Items]
Taxable percentage allocation on dividends	36.93%	50.51%	58.27%
Series C Cumulative Redeemable Preferred Shares [Member]
Income Tax Contingency [Line Items]
Total dividends per share, preferred (in dollars per share)	$ 3.25	$ 3.25	$ 3.25
Taxable percentage allocation on dividends	100.00%	100.00%	100.00%
Series C Cumulative Redeemable Preferred Shares [Member] | Ordinary Income [Member]
Income Tax Contingency [Line Items]
Taxable percentage allocation on dividends	100.00%	99.90%	85.14%
Series C Cumulative Redeemable Preferred Shares [Member] | 15% Rate, Qualifying Dividend [Member]
Income Tax Contingency [Line Items]
Taxable percentage allocation on dividends	0.00%	0.10%	9.85%
Series C Cumulative Redeemable Preferred Shares [Member] | 15% Rate Gain [Member]
Income Tax Contingency [Line Items]
Taxable percentage allocation on dividends	0.00%	0.00%	5.01%
Series C Cumulative Redeemable Preferred Shares [Member] | Return of Capital [Member]
Income Tax Contingency [Line Items]
Taxable percentage allocation on dividends	0.00%	0.00%	0.00%
Series D Cumulative Redeemable Preferred Shares [Member]
Income Tax Contingency [Line Items]
Total dividends per share, preferred (in dollars per share)	$ 0	$ 0	$ 1.043368
Taxable percentage allocation on dividends	0.00%	0.00%	100.00%
Series D Cumulative Redeemable Preferred Shares [Member] | Ordinary Income [Member]
Income Tax Contingency [Line Items]
Taxable percentage allocation on dividends	0.00%	0.00%	85.14%
Series D Cumulative Redeemable Preferred Shares [Member] | 15% Rate, Qualifying Dividend [Member]
Income Tax Contingency [Line Items]
Taxable percentage allocation on dividends	0.00%	0.00%	9.85%
Series D Cumulative Redeemable Preferred Shares [Member] | 15% Rate Gain [Member]
Income Tax Contingency [Line Items]
Taxable percentage allocation on dividends	0.00%	0.00%	5.01%
Series D Cumulative Redeemable Preferred Shares [Member] | Return of Capital [Member]
Income Tax Contingency [Line Items]
Taxable percentage allocation on dividends	0.00%	0.00%	0.00%

Commitments and Contingencies (

Commitments and Contingencies (Details) $ in Thousands	Sep. 16, 2015USD ($)	Dec. 31, 2015executive_officer
Commitments and Contingencies Disclosure [Abstract]
Damages sought | $	$ 15,500
Number of executive officers entitled to severance benefits | executive_officer		4

Supplemental Disclosure of St84

Supplemental Disclosure of Statement of Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Other Significant Noncash Transactions [Line Items]
Interest paid	$ 88,725	$ 100,080	$ 92,788
Income taxes paid	741	859	4,666
Interests Sold [Member]
Other Significant Noncash Transactions [Line Items]
Real estate non-recourse mortgage debt assumed	55,000	30,140	40,356
Conveyed Interest [Member]
Other Significant Noncash Transactions [Line Items]
Mortgage loans on real estate, foreclosures	$ 47,528	$ 9,900	$ 49,510

Unaudited Quarterly Financial85

Unaudited Quarterly Financial Data (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014		Sep. 30, 2014		Jun. 30, 2014		Mar. 31, 2014		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]
Total gross revenues	$ 106,626	$ 105,438	$ 110,333	$ 108,442	$ 107,783	[1]	$ 106,572	[1]	$ 105,447	[1]	$ 104,016	[1]	$ 430,839	$ 423,818	$ 361,055
Net income	35,513	(5,200)	50,207	34,371	38,185		42,177		15,287		1,814		114,891	97,463	3,863
Net income (loss) attributable to common shareholders	$ 33,229	$ (7,629)	$ 47,654	$ 31,829	$ 35,700		$ 38,720		$ 12,743		$ (839)		$ 111,703	$ 93,104	$ 1,630
Net income (loss) attributable to common shareholders - basic (in dollars per share)	$ 0.14	$ (0.03)	$ 0.20	$ 0.14	$ 0.15		$ 0.17		$ 0.05		$ 0		$ 0.45	$ 0.38	$ (0.07)
Net income (loss) attributable to common shareholders - diluted (in dollars per share)	$ 0.14	$ (0.03)	$ 0.20	$ 0.14	$ 0.15		$ 0.17		$ 0.05		$ 0		$ 0.45	$ 0.38	$ (0.07)
[1]	All periods have been adjusted to reflect the impact of properties sold during the years ended December 31, 2014, and properties classified as held for sale as of December 31, 2014, which are reflected in discontinued operations in the Consolidated Statements of Operations.

Subsequent Events (Details)

Subsequent Events (Details) - Subsequent Event [Member]	2 Months Ended
	Feb. 25, 2016USD ($)$ / sharesshares
Subsequent Event [Line Items]
Repurchase of common shares (in shares) | shares	951,792
Average cost per share (in dollars per share) | $ / shares	$ 7.48
Russellville, Arkansas [Member]
Subsequent Event [Line Items]
Proceeds from sale of real estate	$ 6,681,000
Richmond, Virginia [Member] | Mortgages [Member]
Subsequent Event [Line Items]
Principal amount of debt component	$ 57,500,000
Debt instrument, term (in years)	15 years
Debt interest rate percentage	5.20%
Industrial Property [Member] | Detroit, Michigan [Member]
Subsequent Event [Line Items]
Payments to acquire real estate	$ 29,680,000
Lease term (in years)	20 years

Schedule III - Real Estate an87

Schedule III - Real Estate and Accumulated Depreciation and Amortization - Schedule III (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 882,952
Land and Land Estates	743,125
Buildings and Improvements	3,038,034
Total	3,789,711	$ 3,671,560	$ 3,812,294	$ 3,564,466
Accumulated Depreciation and Amortization	812,207	795,486	$ 775,617	$ 738,068
Construction in progress	8,552	$ 14,946
Office Building [Member] | Little Rock, Arkansas [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,353
Buildings and Improvements	2,260
Total	3,613
Accumulated Depreciation and Amortization	$ 545
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Pine Bluff, Arkansas [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	271
Buildings and Improvements	603
Total	874
Accumulated Depreciation and Amortization	$ 228
Office Building [Member] | Pine Bluff, Arkansas [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	3 years
Office Building [Member] | Pine Bluff, Arkansas [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	13 years
Office Building [Member] | Pine Bluff, Arkansas [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	4 years
Office Building [Member] | Glendale, Arizona [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	9,418
Buildings and Improvements	8,394
Total	17,812
Accumulated Depreciation and Amortization	$ 2,202
Office Building [Member] | Glendale, Arizona [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	7 years
Office Building [Member] | Glendale, Arizona [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	24 years
Office Building [Member] | Glendale, Arizona [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Office Building [Member] | Glendale, Arizona [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	20 years
Office Building [Member] | Phoenix, Arizona [Member] | Phoenix, AZ Office Property, Acquired Dec-12 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	5,585
Buildings and Improvements	36,923
Total	42,508
Accumulated Depreciation and Amortization	$ 3,278
Office Building [Member] | Phoenix, Arizona [Member] | Phoenix, AZ Office Property, Acquired Dec-12 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Office Building [Member] | Phoenix, Arizona [Member] | Phoenix, AZ Office Property, Acquired Dec-12 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Phoenix, Arizona [Member] | Phoenix, AZ Office Property, Acquired Dec-12 [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	15 years
Office Building [Member] | Phoenix, Arizona [Member] | Phoenix, AZ Office Property, Acquired Dec-12 [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	17 years
Office Building [Member] | Phoenix, Arizona [Member] | Phoenix, AZ Office Property acquired May-00 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	4,666
Buildings and Improvements	24,856
Total	29,522
Accumulated Depreciation and Amortization	$ 9,515
Office Building [Member] | Phoenix, Arizona [Member] | Phoenix, AZ Office Property acquired May-00 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	6 years
Office Building [Member] | Phoenix, Arizona [Member] | Phoenix, AZ Office Property acquired May-00 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Phoenix, Arizona [Member] | Phoenix, AZ Office Property acquired May-00 [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	9 years
Office Building [Member] | Tempe, Arizona [Member] | Tempe, AZ Office Acquired Sep-12 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	0
Buildings and Improvements	13,086
Total	13,086
Accumulated Depreciation and Amortization	$ 1,505
Office Building [Member] | Tempe, Arizona [Member] | Tempe, AZ Office Acquired Sep-12 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	5 years
Office Building [Member] | Tempe, Arizona [Member] | Tempe, AZ Office Acquired Sep-12 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	36 years
Office Building [Member] | Tempe, Arizona [Member] | Tempe, AZ Office Acquired Sep-12 [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	7 years
Office Building [Member] | Tempe, Arizona [Member] | Tempe, AZ Office Acquired Sep-12 [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Office Building [Member] | Tempe, Arizona [Member] | Tempe, AZ Office Acquired Sep-12 [Member] | Asset Component 3 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	11 years
Office Building [Member] | Tempe, Arizona [Member] | Tempe, AZ Office Acquired Sep-12 [Member] | Asset Component 4 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	15 years
Office Building [Member] | Tempe, Arizona [Member] | Tempe, AZ Office Acquired Dec-05 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 7,185
Land and Land Estates	0
Buildings and Improvements	9,442
Total	9,442
Accumulated Depreciation and Amortization	$ 2,884
Office Building [Member] | Tempe, Arizona [Member] | Tempe, AZ Office Acquired Dec-05 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	30 years
Office Building [Member] | Tempe, Arizona [Member] | Tempe, AZ Office Acquired Dec-05 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Tucson, Arizona [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	681
Buildings and Improvements	4,037
Total	4,718
Accumulated Depreciation and Amortization	$ 580
Office Building [Member] | Tucson, Arizona [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	7 years
Office Building [Member] | Tucson, Arizona [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	30 years
Office Building [Member] | Tucson, Arizona [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Office Building [Member] | Lake Forest, California [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	3,442
Buildings and Improvements	13,769
Total	17,211
Accumulated Depreciation and Amortization	$ 4,747
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Los Angeles, California [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	5,110
Buildings and Improvements	12,158
Total	17,268
Accumulated Depreciation and Amortization	$ 7,250
Office Building [Member] | Los Angeles, California [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Office Building [Member] | Los Angeles, California [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Los Angeles, California [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	13 years
Office Building [Member] | Palo Alto, California [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 48,512
Land and Land Estates	12,398
Buildings and Improvements	16,977
Total	29,375
Accumulated Depreciation and Amortization	$ 19,420
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Centenial, Colorado [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	4,851
Buildings and Improvements	15,239
Total	20,090
Accumulated Depreciation and Amortization	$ 5,889
Office Building [Member] | Centenial, Colorado [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Office Building [Member] | Centenial, Colorado [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Englewood, Colorado [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	2,207
Buildings and Improvements	27,851
Total	30,058
Accumulated Depreciation and Amortization	$ 2,857
Office Building [Member] | Englewood, Colorado [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	15 years
Office Building [Member] | Englewood, Colorado [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Englewood, Colorado [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	19 years
Office Building [Member] | Lakewood, Colorado [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,569
Buildings and Improvements	10,286
Total	11,855
Accumulated Depreciation and Amortization	$ 6,102
Office Building [Member] | Lakewood, Colorado [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	2 years
Office Building [Member] | Lakewood, Colorado [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Lakewood, Colorado [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	3 years
Office Building [Member] | Lakewood, Colorado [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	12 years
Office Building [Member] | Lakewood, Colorado [Member] | Asset Component 3 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	15 years
Office Building [Member] | Louisville, Colorado [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	3,657
Buildings and Improvements	11,217
Total	14,874
Accumulated Depreciation and Amortization	$ 3,069
Office Building [Member] | Louisville, Colorado [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	8 years
Office Building [Member] | Louisville, Colorado [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Louisville, Colorado [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	9 years
Office Building [Member] | Louisville, Colorado [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	12 years
Office Building [Member] | Parachute, Colorado [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,400
Buildings and Improvements	10,751
Total	12,151
Accumulated Depreciation and Amortization	$ 581
Office Building [Member] | Parachute, Colorado [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	19 years
Office Building [Member] | Parachute, Colorado [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Parachute, Colorado [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	24 years
Office Building [Member] | Wallingford, Connecticut [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,049
Buildings and Improvements	4,773
Total	5,822
Accumulated Depreciation and Amortization	$ 1,652
Office Building [Member] | Wallingford, Connecticut [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	8 years
Office Building [Member] | Wallingford, Connecticut [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Boca Raton, Florida [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 19,624
Land and Land Estates	4,290
Buildings and Improvements	17,160
Total	21,450
Accumulated Depreciation and Amortization	$ 5,524
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Lake Mary, Florida [Member] | Lake Mary, FL Office Acquired Jun-07 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	4,438
Buildings and Improvements	15,271
Total	19,709
Accumulated Depreciation and Amortization	$ 5,302
Office Building [Member] | Lake Mary, Florida [Member] | Lake Mary, FL Office Acquired Jun-07 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	3 years
Office Building [Member] | Lake Mary, Florida [Member] | Lake Mary, FL Office Acquired Jun-07 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Lake Mary, Florida [Member] | Lake Mary, FL Office Acquired Jun-07 [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	4 years
Office Building [Member] | Lake Mary, Florida [Member] | Lake Mary, FL Office Acquired Jun-07 [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	7 years
Office Building [Member] | Lake Mary, Florida [Member] | Lake Mary, FL Office Acquired Jun-07 [Member] | Asset Component 3 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Office Building [Member] | Lake Mary, Florida [Member] | Lake Mary, FL Office Acquired Jun-07 [Member] | Asset Component 4 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	15 years
Office Building [Member] | Lake Mary, Florida [Member] | Lake Mary, FL Office Acquired Jun-07, Property 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	4,535
Buildings and Improvements	14,939
Total	19,474
Accumulated Depreciation and Amortization	$ 5,298
Office Building [Member] | Lake Mary, Florida [Member] | Lake Mary, FL Office Acquired Jun-07, Property 2 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	3 years
Office Building [Member] | Lake Mary, Florida [Member] | Lake Mary, FL Office Acquired Jun-07, Property 2 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Lake Mary, Florida [Member] | Lake Mary, FL Office Acquired Jun-07, Property 2 [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	4 years
Office Building [Member] | Lake Mary, Florida [Member] | Lake Mary, FL Office Acquired Jun-07, Property 2 [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	7 years
Office Building [Member] | Lake Mary, Florida [Member] | Lake Mary, FL Office Acquired Jun-07, Property 2 [Member] | Asset Component 3 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Office Building [Member] | Lake Mary, Florida [Member] | Lake Mary, FL Office Acquired Jun-07, Property 2 [Member] | Asset Component 4 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	18 years
Office Building [Member] | Orlando, Florida [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 9,471
Land and Land Estates	3,538
Buildings and Improvements	9,844
Total	13,382
Accumulated Depreciation and Amortization	$ 5,361
Office Building [Member] | Orlando, Florida [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	5 years
Office Building [Member] | Orlando, Florida [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Orlando, Florida [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	6 years
Office Building [Member] | Orlando, Florida [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	12 years
Office Building [Member] | Orlando, Florida [Member] | Asset Component 3 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	15 years
Office Building [Member] | Palm Beach Gardens, Florida [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	787
Buildings and Improvements	3,732
Total	4,519
Accumulated Depreciation and Amortization	$ 1,502
Office Building [Member] | Palm Beach Gardens, Florida [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	5 years
Office Building [Member] | Palm Beach Gardens, Florida [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Tampa, Florida [Member] | Tampa, FL Office Acquired Dec-13 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	146
Buildings and Improvements	559
Total	705
Accumulated Depreciation and Amortization	$ 36
Office Building [Member] | Tampa, Florida [Member] | Tampa, FL Office Acquired Dec-13 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	20 years
Office Building [Member] | Tampa, Florida [Member] | Tampa, FL Office Acquired Dec-13 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	35 years
Office Building [Member] | Tampa, Florida [Member] | Tampa, FL Office Acquired Dec-13, Property 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	895
Buildings and Improvements	5,496
Total	6,391
Accumulated Depreciation and Amortization	$ 322
Office Building [Member] | Tampa, Florida [Member] | Tampa, FL Office Acquired Dec-13, Property 2 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	20 years
Office Building [Member] | Tampa, Florida [Member] | Tampa, FL Office Acquired Dec-13, Property 2 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	38 years
Office Building [Member] | Tampa, Florida [Member] | Tampa, FL Office Acquired Sep-12 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	2,018
Buildings and Improvements	7,993
Total	10,011
Accumulated Depreciation and Amortization	$ 1,327
Office Building [Member] | Tampa, Florida [Member] | Tampa, FL Office Acquired Sep-12 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	8 years
Office Building [Member] | Tampa, Florida [Member] | Tampa, FL Office Acquired Sep-12 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	27 years
Office Building [Member] | Tampa, Florida [Member] | Tampa, FL Office Acquired Sep-12 [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	25 years
Office Building [Member] | Tampa, Florida [Member] | Tampa, FL Office Acquired Dec-13, Property 3 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	398
Buildings and Improvements	1,571
Total	1,969
Accumulated Depreciation and Amortization	$ 100
Office Building [Member] | Tampa, Florida [Member] | Tampa, FL Office Acquired Dec-13, Property 3 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	14 years
Office Building [Member] | Tampa, Florida [Member] | Tampa, FL Office Acquired Dec-13, Property 3 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Tampa, Florida [Member] | Tampa, FL Office Acquired Dec-13, Property 3 [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	20 years
Office Building [Member] | McDonough, Georgia [Member] | McDonough, GA Office Acquired Sep-12 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,443
Buildings and Improvements	11,433
Total	12,876
Accumulated Depreciation and Amortization	$ 1,443
Office Building [Member] | McDonough, Georgia [Member] | McDonough, GA Office Acquired Sep-12 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	3 years
Office Building [Member] | McDonough, Georgia [Member] | McDonough, GA Office Acquired Sep-12 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	38 years
Office Building [Member] | McDonough, Georgia [Member] | McDonough, GA Office Acquired Sep-12 [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Office Building [Member] | McDonough, Georgia [Member] | McDonough, GA Office Acquired Sep-12 [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	11 years
Office Building [Member] | McDonough, Georgia [Member] | McDonough, GA Office Acquired Sep-12, Property 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	693
Buildings and Improvements	6,405
Total	7,098
Accumulated Depreciation and Amortization	$ 858
Office Building [Member] | McDonough, Georgia [Member] | McDonough, GA Office Acquired Sep-12, Property 2 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	6 years
Office Building [Member] | McDonough, Georgia [Member] | McDonough, GA Office Acquired Sep-12, Property 2 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | McDonough, Georgia [Member] | McDonough, GA Office Acquired Sep-12, Property 2 [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	11 years
Office Building [Member] | Meridian, Idaho [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 9,322
Land and Land Estates	2,255
Buildings and Improvements	7,797
Total	10,052
Accumulated Depreciation and Amortization	$ 1,339
Office Building [Member] | Meridian, Idaho [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	7 years
Office Building [Member] | Meridian, Idaho [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	37 years
Office Building [Member] | Lisle, Illinois [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 9,449
Land and Land Estates	3,236
Buildings and Improvements	13,854
Total	17,090
Accumulated Depreciation and Amortization	$ 4,124
Office Building [Member] | Lisle, Illinois [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	2 years
Office Building [Member] | Lisle, Illinois [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Lisle, Illinois [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	3 years
Office Building [Member] | Lisle, Illinois [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	5 years
Office Building [Member] | Lisle, Illinois [Member] | Asset Component 3 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	20 years
Office Building [Member] | Schaumburg, Illinois [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	5,007
Buildings and Improvements	22,340
Total	27,347
Accumulated Depreciation and Amortization	$ 3,247
Office Building [Member] | Schaumburg, Illinois [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	7 years
Office Building [Member] | Schaumburg, Illinois [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	30 years
Office Building [Member] | Schaumburg, Illinois [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	9 years
Office Building [Member] | Schaumburg, Illinois [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	20 years
Office Building [Member] | Columbus, Indiana [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 20,986
Land and Land Estates	235
Buildings and Improvements	45,729
Total	45,964
Accumulated Depreciation and Amortization	$ 17,497
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Fishers, Indiana [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	2,808
Buildings and Improvements	19,373
Total	22,181
Accumulated Depreciation and Amortization	$ 5,831
Office Building [Member] | Fishers, Indiana [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	3 years
Office Building [Member] | Fishers, Indiana [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Indianapolis, Indiana [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,700
Buildings and Improvements	18,491
Total	20,191
Accumulated Depreciation and Amortization	$ 12,977
Office Building [Member] | Indianapolis, Indiana [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	5 years
Office Building [Member] | Indianapolis, Indiana [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Indianapolis, Indiana [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	6 years
Office Building [Member] | Lexena, Kansas [Member] | Lenexa, KS Office Acquired Sep-12 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 9,463
Land and Land Estates	2,828
Buildings and Improvements	6,075
Total	8,903
Accumulated Depreciation and Amortization	$ 961
Office Building [Member] | Lexena, Kansas [Member] | Lenexa, KS Office Acquired Sep-12 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	7 years
Office Building [Member] | Lexena, Kansas [Member] | Lenexa, KS Office Acquired Sep-12 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	37 years
Office Building [Member] | Lexena, Kansas [Member] | Lenexa, KS Office Acquired Sep-12 [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	12 years
Office Building [Member] | Lexena, Kansas [Member] | Lenexa, KS Office Acquired Jul-08 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 36,666
Land and Land Estates	6,909
Buildings and Improvements	41,684
Total	48,593
Accumulated Depreciation and Amortization	$ 11,083
Office Building [Member] | Lexena, Kansas [Member] | Lenexa, KS Office Acquired Jul-08 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	5 years
Office Building [Member] | Lexena, Kansas [Member] | Lenexa, KS Office Acquired Jul-08 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Lexena, Kansas [Member] | Lenexa, KS Office Acquired Jul-08 [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	12 years
Office Building [Member] | Lexena, Kansas [Member] | Lenexa, KS Office Acquired Jul-08 [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	13 years
Office Building [Member] | Lexena, Kansas [Member] | Lenexa, KS Office Acquired Jul-08 [Member] | Asset Component 3 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	14 years
Office Building [Member] | Lexena, Kansas [Member] | Lenexa, KS Office Acquired Jul-08 [Member] | Asset Component 4 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	15 years
Office Building [Member] | Overland Park, Kansas [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 34,134
Land and Land Estates	4,769
Buildings and Improvements	41,956
Total	46,725
Accumulated Depreciation and Amortization	$ 12,979
Office Building [Member] | Overland Park, Kansas [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	12 years
Office Building [Member] | Overland Park, Kansas [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Baton Rouge, Louisiana [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,252
Buildings and Improvements	11,085
Total	12,337
Accumulated Depreciation and Amortization	$ 3,889
Office Building [Member] | Baton Rouge, Louisiana [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	3 years
Office Building [Member] | Baton Rouge, Louisiana [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Baton Rouge, Louisiana [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	4 years
Office Building [Member] | Baton Rouge, Louisiana [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	6 years
Office Building [Member] | Boston, Massachusetts [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 12,302
Land and Land Estates	3,814
Buildings and Improvements	16,040
Total	19,854
Accumulated Depreciation and Amortization	$ 3,653
Office Building [Member] | Boston, Massachusetts [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Office Building [Member] | Boston, Massachusetts [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Oakland, Maine [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 8,850
Land and Land Estates	551
Buildings and Improvements	8,774
Total	9,325
Accumulated Depreciation and Amortization	$ 1,201
Office Building [Member] | Oakland, Maine [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	8 years
Office Building [Member] | Oakland, Maine [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Oakland, Maine [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	12 years
Office Building [Member] | Auburn Hill, Michigan [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	4,416
Buildings and Improvements	30,012
Total	34,428
Accumulated Depreciation and Amortization	$ 1,211
Office Building [Member] | Auburn Hill, Michigan [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	6 years
Office Building [Member] | Auburn Hill, Michigan [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	25 years
Office Building [Member] | Auburn Hill, Michigan [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	14 years
Office Building [Member] | Livonia, Michigan [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	935
Buildings and Improvements	13,714
Total	14,649
Accumulated Depreciation and Amortization	$ 2,256
Office Building [Member] | Livonia, Michigan [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	2 years
Office Building [Member] | Livonia, Michigan [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	34 years
Office Building [Member] | Kansas City, Missouri [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 16,271
Land and Land Estates	2,433
Buildings and Improvements	20,154
Total	22,587
Accumulated Depreciation and Amortization	$ 6,215
Office Building [Member] | Kansas City, Missouri [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	12 years
Office Building [Member] | Kansas City, Missouri [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Saint Joseph, Missouri [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	607
Buildings and Improvements	14,004
Total	14,611
Accumulated Depreciation and Amortization	$ 1,472
Office Building [Member] | Saint Joseph, Missouri [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	15 years
Office Building [Member] | Saint Joseph, Missouri [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Pascagoula, Mississippi [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	618
Buildings and Improvements	3,677
Total	4,295
Accumulated Depreciation and Amortization	$ 587
Office Building [Member] | Pascagoula, Mississippi [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	1 year
Office Building [Member] | Pascagoula, Mississippi [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	31 years
Office Building [Member] | Pascagoula, Mississippi [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	9 years
Office Building [Member] | Omaha, Nebraska [Member] | Omaha, NE Office Acquired Nov-05 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 7,608
Land and Land Estates	2,566
Buildings and Improvements	8,324
Total	10,890
Accumulated Depreciation and Amortization	$ 2,564
Office Building [Member] | Omaha, Nebraska [Member] | Omaha, NE Office Acquired Nov-05 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	30 years
Office Building [Member] | Omaha, Nebraska [Member] | Omaha, NE Office Acquired Nov-05 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Omaha, Nebraska [Member] | Omaha, NE Office Acquired Dec-13 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	2,058
Buildings and Improvements	32,343
Total	34,401
Accumulated Depreciation and Amortization	$ 1,928
Office Building [Member] | Omaha, Nebraska [Member] | Omaha, NE Office Acquired Dec-13 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	20 years
Office Building [Member] | Omaha, Nebraska [Member] | Omaha, NE Office Acquired Dec-13 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Rockaway, New Jersey [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	4,646
Buildings and Improvements	23,143
Total	27,789
Accumulated Depreciation and Amortization	$ 5,695
Office Building [Member] | Rockaway, New Jersey [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	12 years
Office Building [Member] | Rockaway, New Jersey [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Rockaway, New Jersey [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	20 years
Office Building [Member] | Wall, New Jersey [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 17,536
Land and Land Estates	8,985
Buildings and Improvements	26,961
Total	35,946
Accumulated Depreciation and Amortization	$ 12,569
Office Building [Member] | Wall, New Jersey [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	22 years
Office Building [Member] | Wall, New Jersey [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Whippany, New Jersey [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 13,700
Land and Land Estates	4,063
Buildings and Improvements	19,711
Total	23,774
Accumulated Depreciation and Amortization	$ 7,397
Office Building [Member] | Whippany, New Jersey [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	20 years
Office Building [Member] | Whippany, New Jersey [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Las Vegas, Nevada [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	12,099
Buildings and Improvements	53,164
Total	65,263
Accumulated Depreciation and Amortization	$ 12,229
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Columbus, Ohio [Member] | Columbus, OH Office Acquired Dec-10 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,594
Buildings and Improvements	10,481
Total	12,075
Accumulated Depreciation and Amortization	$ 1,310
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Columbus, Ohio [Member] | Columbus, OH Office Acquired Jul-11 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	432
Buildings and Improvements	2,773
Total	3,205
Accumulated Depreciation and Amortization	$ 312
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Milford, Ohio [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	3,124
Buildings and Improvements	16,140
Total	19,264
Accumulated Depreciation and Amortization	$ 5,755
Office Building [Member] | Milford, Ohio [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	5 years
Office Building [Member] | Milford, Ohio [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Westerville, Ohio [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	2,085
Buildings and Improvements	9,411
Total	11,496
Accumulated Depreciation and Amortization	$ 2,853
Office Building [Member] | Westerville, Ohio [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	5 years
Office Building [Member] | Westerville, Ohio [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Eugene, Oregon [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,541
Buildings and Improvements	13,098
Total	14,639
Accumulated Depreciation and Amortization	$ 1,374
Office Building [Member] | Eugene, Oregon [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	7 years
Office Building [Member] | Eugene, Oregon [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Eugene, Oregon [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	12 years
Office Building [Member] | Eugene, Oregon [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	15 years
Office Building [Member] | Eugene, Oregon [Member] | Asset Component 3 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	25 years
Office Building [Member] | Redmond, Oregon [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	2,064
Buildings and Improvements	8,316
Total	10,380
Accumulated Depreciation and Amortization	$ 1,196
Office Building [Member] | Redmond, Oregon [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	6 years
Office Building [Member] | Redmond, Oregon [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Redmond, Oregon [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	13 years
Office Building [Member] | Harrisburg, Pennsylvania [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	900
Buildings and Improvements	11,310
Total	12,210
Accumulated Depreciation and Amortization	$ 7,924
Office Building [Member] | Harrisburg, Pennsylvania [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	2 years
Office Building [Member] | Harrisburg, Pennsylvania [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Harrisburg, Pennsylvania [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	5 years
Office Building [Member] | Harrisburg, Pennsylvania [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	9 years
Office Building [Member] | Harrisburg, Pennsylvania [Member] | Asset Component 3 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Office Building [Member] | Harrisburg, Pennsylvania [Member] | Asset Component 4 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	15 years
Office Building [Member] | Harrisburg, Pennsylvania [Member] | Asset Component 5 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	20 years
Office Building [Member] | Jessup, Pennsylvania [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	2,520
Buildings and Improvements	17,678
Total	20,198
Accumulated Depreciation and Amortization	$ 2,391
Office Building [Member] | Jessup, Pennsylvania [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	13 years
Office Building [Member] | Jessup, Pennsylvania [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Jessup, Pennsylvania [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	15 years
Office Building [Member] | Philadelphia, Pennsylvania [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	13,209
Buildings and Improvements	56,520
Total	69,729
Accumulated Depreciation and Amortization	$ 32,966
Office Building [Member] | Philadelphia, Pennsylvania [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	4 years
Office Building [Member] | Philadelphia, Pennsylvania [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Charleston, South Carolina [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 7,185
Land and Land Estates	1,189
Buildings and Improvements	8,724
Total	9,913
Accumulated Depreciation and Amortization	$ 3,467
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Florence, South Carolina [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	774
Buildings and Improvements	3,629
Total	4,403
Accumulated Depreciation and Amortization	$ 412
Office Building [Member] | Florence, South Carolina [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	12 years
Office Building [Member] | Florence, South Carolina [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Fort Mill, South Carolina [Member] | Fort Mill, SC Office, Acquired Dec-02 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	3,601
Buildings and Improvements	15,340
Total	18,941
Accumulated Depreciation and Amortization	$ 4,953
Office Building [Member] | Fort Mill, South Carolina [Member] | Fort Mill, SC Office, Acquired Dec-02 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	5 years
Office Building [Member] | Fort Mill, South Carolina [Member] | Fort Mill, SC Office, Acquired Dec-02 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Fort Mill, South Carolina [Member] | Fort Mill, SC Office, Acquired Dec-02 [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	11 years
Office Building [Member] | Fort Mill, South Carolina [Member] | Fort Mill, SC Office, Acquired Dec-02 [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	20 years
Office Building [Member] | Fort Mill, South Carolina [Member] | Fort Mill, SC Office, Acquired Nov-04 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,798
Buildings and Improvements	26,038
Total	27,836
Accumulated Depreciation and Amortization	$ 15,322
Office Building [Member] | Fort Mill, South Carolina [Member] | Fort Mill, SC Office, Acquired Nov-04 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	11 years
Office Building [Member] | Fort Mill, South Carolina [Member] | Fort Mill, SC Office, Acquired Nov-04 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Fort Mill, South Carolina [Member] | Fort Mill, SC Office, Acquired Nov-04 [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	15 years
Office Building [Member] | Rock Hill, South Carolina [Member] | Rock Hill, SC Office Acquired May-11 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	551
Buildings and Improvements	4,313
Total	4,864
Accumulated Depreciation and Amortization	$ 503
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Rock Hill, South Carolina [Member] | Rock Hill, SC Office Acquired Mar-14 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,601
Buildings and Improvements	21,000
Total	22,601
Accumulated Depreciation and Amortization	$ 1,053
Office Building [Member] | Rock Hill, South Carolina [Member] | Rock Hill, SC Office Acquired Mar-14 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	18 years
Office Building [Member] | Rock Hill, South Carolina [Member] | Rock Hill, SC Office Acquired Mar-14 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Rock Hill, South Carolina [Member] | Rock Hill, SC Office Acquired Mar-14 [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	20 years
Office Building [Member] | Kingsport, Tennessee [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	513
Buildings and Improvements	403
Total	916
Accumulated Depreciation and Amortization	$ 155
Office Building [Member] | Kingsport, Tennessee [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	5 years
Office Building [Member] | Kingsport, Tennessee [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	14 years
Office Building [Member] | Kingsport, Tennessee [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	6 years
Office Building [Member] | Knoxville, Tennessee [Member] | Knoxville, TN Office Acquired Mar-05 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,079
Buildings and Improvements	11,351
Total	12,430
Accumulated Depreciation and Amortization	$ 6,248
Office Building [Member] | Knoxville, Tennessee [Member] | Knoxville, TN Office Acquired Mar-05 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	9 years
Office Building [Member] | Knoxville, Tennessee [Member] | Knoxville, TN Office Acquired Mar-05 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Knoxville, Tennessee [Member] | Knoxville, TN Office Acquired Mar-05 [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Office Building [Member] | Knoxville, Tennessee [Member] | Knoxville, TN Office Acquired Mar-05 [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	11 years
Office Building [Member] | Knoxville, Tennessee [Member] | Knoxville, TN Office Acquired Mar-05 [Member] | Asset Component 3 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	14 years
Office Building [Member] | Knoxville, Tennessee [Member] | Knoxville, TN Office Acquired Sep-12 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	621
Buildings and Improvements	6,282
Total	6,903
Accumulated Depreciation and Amortization	$ 925
Office Building [Member] | Knoxville, Tennessee [Member] | Knoxville, TN Office Acquired Sep-12 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	1 year
Office Building [Member] | Knoxville, Tennessee [Member] | Knoxville, TN Office Acquired Sep-12 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Knoxville, Tennessee [Member] | Knoxville, TN Office Acquired Sep-12 [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	5 years
Office Building [Member] | Knoxville, Tennessee [Member] | Knoxville, TN Office Acquired Sep-12 [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	7 years
Office Building [Member] | Memphis, Tennessee [Member] | Memphis, TN Office Acquired Nov-06 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 3,555
Land and Land Estates	467
Buildings and Improvements	4,467
Total	4,934
Accumulated Depreciation and Amortization	$ 1,681
Office Building [Member] | Memphis, Tennessee [Member] | Memphis, TN Office Acquired Nov-06 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	20 years
Office Building [Member] | Memphis, Tennessee [Member] | Memphis, TN Office Acquired Nov-06 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Memphis, Tennessee [Member] | Memphis, TN Office Acquired Dec-06 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	5,291
Buildings and Improvements	97,032
Total	102,323
Accumulated Depreciation and Amortization	$ 22,742
Office Building [Member] | Memphis, Tennessee [Member] | Memphis, TN Office Acquired Dec-06 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	13 years
Office Building [Member] | Memphis, Tennessee [Member] | Memphis, TN Office Acquired Dec-06 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Allen, Texas [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	5,591
Buildings and Improvements	25,421
Total	31,012
Accumulated Depreciation and Amortization	$ 7,195
Office Building [Member] | Allen, Texas [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	6 years
Office Building [Member] | Allen, Texas [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	25 years
Office Building [Member] | Allen, Texas [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	7 years
Office Building [Member] | Allen, Texas [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	11 years
Office Building [Member] | Arlington, Texas [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,274
Buildings and Improvements	15,309
Total	16,583
Accumulated Depreciation and Amortization	$ 1,961
Office Building [Member] | Arlington, Texas [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	1 year
Office Building [Member] | Arlington, Texas [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Arlington, Texas [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Office Building [Member] | Arlington, Texas [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	12 years
Office Building [Member] | Carrollton, Texas [Member] | Carrollton, TX Office Acquired Jun-04 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,789
Buildings and Improvements	18,157
Total	19,946
Accumulated Depreciation and Amortization	$ 8,645
Office Building [Member] | Carrollton, Texas [Member] | Carrollton, TX Office Acquired Jun-04 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	19 years
Office Building [Member] | Carrollton, Texas [Member] | Carrollton, TX Office Acquired Jun-04 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Carrollton, Texas [Member] | Carrollton, TX Office Acquired Jun-07 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	2,599
Buildings and Improvements	22,050
Total	24,649
Accumulated Depreciation and Amortization	$ 7,893
Office Building [Member] | Carrollton, Texas [Member] | Carrollton, TX Office Acquired Jun-07 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	8 years
Office Building [Member] | Carrollton, Texas [Member] | Carrollton, TX Office Acquired Jun-07 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Carrollton, Texas [Member] | Carrollton, TX Office Acquired Jun-07, Property 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	828
Buildings and Improvements	0
Total	828
Accumulated Depreciation and Amortization	0
Office Building [Member] | Farmers Branch, Texas [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	18,380
Land and Land Estates	3,984
Buildings and Improvements	27,308
Total	31,292
Accumulated Depreciation and Amortization	$ 10,137
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Garland, Texas [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,161
Buildings and Improvements	833
Total	1,994
Accumulated Depreciation and Amortization	$ 0
Useful life computing depreciation in latest income statement (years)	1 year
Office Building [Member] | Houston, Texas [Member] | Houston, TX Office Acquired Apr-05 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,875
Buildings and Improvements	10,675
Total	12,550
Accumulated Depreciation and Amortization	$ 6,745
Office Building [Member] | Houston, Texas [Member] | Houston, TX Office Acquired Apr-05 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	5 years
Office Building [Member] | Houston, Texas [Member] | Houston, TX Office Acquired Apr-05 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Houston, Texas [Member] | Houston, TX Office Acquired Apr-05 [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Office Building [Member] | Houston, Texas [Member] | Houston, TX Office Acquired Apr-05 [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	13 years
Office Building [Member] | Houston, Texas [Member] | Houston, TX Office Acquired Apr-05, Property 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,875
Buildings and Improvements	10,959
Total	12,834
Accumulated Depreciation and Amortization	$ 6,824
Office Building [Member] | Houston, Texas [Member] | Houston, TX Office Acquired Apr-05, Property 2 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	4 years
Office Building [Member] | Houston, Texas [Member] | Houston, TX Office Acquired Apr-05, Property 2 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Houston, Texas [Member] | Houston, TX Office Acquired Apr-05, Property 2 [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	13 years
Office Building [Member] | Houston, Texas [Member] | Houston, TX Office Acquired Apr-05, Property 2 [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	20 years
Office Building [Member] | Houston, Texas [Member] | Houston, TX Office Acquired Mar-04 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	16,613
Buildings and Improvements	63,770
Total	80,383
Accumulated Depreciation and Amortization	$ 15,753
Office Building [Member] | Houston, Texas [Member] | Houston, TX Office Acquired Mar-04 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Office Building [Member] | Houston, Texas [Member] | Houston, TX Office Acquired Mar-04 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Houston, Texas [Member] | Houston, TX Office Acquired Apr-05, Property 3 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	800
Buildings and Improvements	26,962
Total	27,762
Accumulated Depreciation and Amortization	$ 18,618
Office Building [Member] | Houston, Texas [Member] | Houston, TX Office Acquired Apr-05, Property 3 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	1 year
Office Building [Member] | Houston, Texas [Member] | Houston, TX Office Acquired Apr-05, Property 3 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Houston, Texas [Member] | Houston, TX Office Acquired Apr-05, Property 3 [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Office Building [Member] | Houston, Texas [Member] | Houston, TX Office Acquired Apr-05, Property 3 [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	11 years
Office Building [Member] | Houston, Texas [Member] | Houston, TX Office Acquired Dec-13 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	481
Buildings and Improvements	2,352
Total	2,833
Accumulated Depreciation and Amortization	$ 187
Office Building [Member] | Houston, Texas [Member] | Houston, TX Office Acquired Dec-13 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	11 years
Office Building [Member] | Houston, Texas [Member] | Houston, TX Office Acquired Dec-13 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	31 years
Office Building [Member] | Houston, Texas [Member] | Houston, TX Office Acquired Dec-13 [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	20 years
Office Building [Member] | Irving, Texas [Member] | Irving, TX Office Acquired Jun-07 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	4,889
Buildings and Improvements	29,738
Total	34,627
Accumulated Depreciation and Amortization	$ 10,532
Office Building [Member] | Irving, Texas [Member] | Irving, TX Office Acquired Jun-07 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Office Building [Member] | Irving, Texas [Member] | Irving, TX Office Acquired Jun-07 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Irving, Texas [Member] | Irving, TX Office Acquired Jun-07 [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	12 years
Office Building [Member] | Irving, Texas [Member] | Irving, TX Office Acquired May-07 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	7,476
Buildings and Improvements	45,985
Total	53,461
Accumulated Depreciation and Amortization	$ 17,532
Office Building [Member] | Irving, Texas [Member] | Irving, TX Office Acquired May-07 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	6 years
Office Building [Member] | Irving, Texas [Member] | Irving, TX Office Acquired May-07 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Mission, Texas [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	2,556
Buildings and Improvements	2,911
Total	5,467
Accumulated Depreciation and Amortization	$ 635
Office Building [Member] | Mission, Texas [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	3 years
Office Building [Member] | Mission, Texas [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	35 years
Office Building [Member] | Mission, Texas [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	8 years
Office Building [Member] | San Antonio, Texas [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	2,800
Buildings and Improvements	15,619
Total	18,419
Accumulated Depreciation and Amortization	$ 11,534
Office Building [Member] | San Antonio, Texas [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	6 years
Office Building [Member] | San Antonio, Texas [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | San Antonio, Texas [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Office Building [Member] | San Antonio, Texas [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	11 years
Office Building [Member] | Temple, Texas [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 7,463
Land and Land Estates	227
Buildings and Improvements	8,181
Total	8,408
Accumulated Depreciation and Amortization	$ 1,462
Office Building [Member] | Temple, Texas [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	3 years
Office Building [Member] | Temple, Texas [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Temple, Texas [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Office Building [Member] | Temple, Texas [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	12 years
Office Building [Member] | Westlake, Texas [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	2,361
Buildings and Improvements	23,572
Total	25,933
Accumulated Depreciation and Amortization	$ 9,510
Office Building [Member] | Westlake, Texas [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	4 years
Office Building [Member] | Westlake, Texas [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Hampton, Virginia [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	2,333
Buildings and Improvements	11,354
Total	13,687
Accumulated Depreciation and Amortization	$ 4,463
Office Building [Member] | Hampton, Virginia [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	2 years
Office Building [Member] | Hampton, Virginia [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Hampton, Virginia [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	5 years
Office Building [Member] | Hampton, Virginia [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Office Building [Member] | Hampton, Virginia [Member] | Asset Component 3 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	15 years
Office Building [Member] | Herndon, Virginia [Member] | Herndon, VA Office Acquired Dec-99 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	5,127
Buildings and Improvements	24,640
Total	29,767
Accumulated Depreciation and Amortization	$ 9,215
Office Building [Member] | Herndon, Virginia [Member] | Herndon, VA Office Acquired Dec-99 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	9 years
Office Building [Member] | Herndon, Virginia [Member] | Herndon, VA Office Acquired Dec-99 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Herndon, Virginia [Member] | Herndon, VA Office Acquired Jun-07 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	9,409
Buildings and Improvements	14,477
Total	23,886
Accumulated Depreciation and Amortization	$ 5,056
Office Building [Member] | Herndon, Virginia [Member] | Herndon, VA Office Acquired Jun-07 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Office Building [Member] | Herndon, Virginia [Member] | Herndon, VA Office Acquired Jun-07 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Herndon, Virginia [Member] | Herndon, VA Office Acquired Jun-07 [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	25 years
Office Building [Member] | Midlothian, Virginia [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,100
Buildings and Improvements	12,685
Total	13,785
Accumulated Depreciation and Amortization	$ 7,073
Office Building [Member] | Midlothian, Virginia [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	6 years
Office Building [Member] | Midlothian, Virginia [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Midlothian, Virginia [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	7 years
Office Building [Member] | Midlothian, Virginia [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	15 years
Office Building [Member] | Richmond, Virginia [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	7,331
Buildings and Improvements	88,021
Total	95,352
Accumulated Depreciation and Amortization	$ 345
Office Building [Member] | Richmond, Virginia [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Office Building [Member] | Richmond, Virginia [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	25 years
Office Building [Member] | Richmond, Virginia [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	13 years
Office Building [Member] | Bremerton, Washington [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 5,534
Land and Land Estates	1,655
Buildings and Improvements	5,445
Total	7,100
Accumulated Depreciation and Amortization	$ 917
Office Building [Member] | Bremerton, Washington [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	4 years
Office Building [Member] | Bremerton, Washington [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Office Building [Member] | Bremerton, Washington [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	13 years
Office Building [Member] | Huntington, West Virginia [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 6,500
Land and Land Estates	1,368
Buildings and Improvements	9,527
Total	10,895
Accumulated Depreciation and Amortization	$ 1,270
Office Building [Member] | Huntington, West Virginia [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	14 years
Office Building [Member] | Huntington, West Virginia [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Orlando, Florida [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,030
Buildings and Improvements	10,869
Total	11,899
Accumulated Depreciation and Amortization	$ 2,758
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Tampa, Florida [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	2,160
Buildings and Improvements	8,431
Total	10,591
Accumulated Depreciation and Amortization	$ 5,905
Industrial Property [Member] | Tampa, Florida [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	9 years
Industrial Property [Member] | Tampa, Florida [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | McDonough, Georgia [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 22,224
Land and Land Estates	2,463
Buildings and Improvements	24,291
Total	26,754
Accumulated Depreciation and Amortization	$ 5,859
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Columbus, Ohio [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,990
Buildings and Improvements	10,580
Total	12,570
Accumulated Depreciation and Amortization	$ 3,131
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Memphis, Tennessee [Member] | Memphis, TN Industrial Acquired Feb-88 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,054
Buildings and Improvements	11,538
Total	12,592
Accumulated Depreciation and Amortization	$ 11,414
Industrial Property [Member] | Memphis, Tennessee [Member] | Memphis, TN Industrial Acquired Feb-88 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	8 years
Industrial Property [Member] | Memphis, Tennessee [Member] | Memphis, TN Industrial Acquired Feb-88 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	15 years
Industrial Property [Member] | Memphis, Tennessee [Member] | Memphis, TN Industrial Acquired Dec-06 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,553
Buildings and Improvements	12,326
Total	13,879
Accumulated Depreciation and Amortization	$ 3,412
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Houston, Texas [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	4,674
Buildings and Improvements	19,540
Total	24,214
Accumulated Depreciation and Amortization	$ 1,603
Industrial Property [Member] | Houston, Texas [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	5 years
Industrial Property [Member] | Houston, Texas [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	20 years
Industrial Property [Member] | Houston, Texas [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Industrial Property [Member] | Anniston, Alabama [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,201
Buildings and Improvements	16,771
Total	17,972
Accumulated Depreciation and Amortization	$ 790
Industrial Property [Member] | Anniston, Alabama [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	8 years
Industrial Property [Member] | Anniston, Alabama [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	24 years
Industrial Property [Member] | Anniston, Alabama [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	15 years
Industrial Property [Member] | Moody, Alabama [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	654
Buildings and Improvements	9,943
Total	10,597
Accumulated Depreciation and Amortization	$ 6,205
Industrial Property [Member] | Moody, Alabama [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	15 years
Industrial Property [Member] | Moody, Alabama [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Lavonia, Georgia [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 7,676
Land and Land Estates	171
Buildings and Improvements	7,657
Total	7,828
Accumulated Depreciation and Amortization	$ 722
Industrial Property [Member] | Lavonia, Georgia [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	8 years
Industrial Property [Member] | Lavonia, Georgia [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Lavonia, Georgia [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	12 years
Industrial Property [Member] | Thomson, Georgia [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	909
Buildings and Improvements	7,746
Total	8,655
Accumulated Depreciation and Amortization	$ 249
Industrial Property [Member] | Thomson, Georgia [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	8 years
Industrial Property [Member] | Thomson, Georgia [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	25 years
Industrial Property [Member] | Thomson, Georgia [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	15 years
Industrial Property [Member] | Des Moines, Iowa [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,528
Buildings and Improvements	14,247
Total	15,775
Accumulated Depreciation and Amortization	$ 1,953
Industrial Property [Member] | Des Moines, Iowa [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	5 years
Industrial Property [Member] | Des Moines, Iowa [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	34 years
Industrial Property [Member] | Des Moines, Iowa [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	11 years
Industrial Property [Member] | Dubuque, Iowa [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 9,055
Land and Land Estates	2,052
Buildings and Improvements	8,443
Total	10,495
Accumulated Depreciation and Amortization	$ 2,755
Industrial Property [Member] | Dubuque, Iowa [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	11 years
Industrial Property [Member] | Dubuque, Iowa [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Dubuque, Iowa [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	12 years
Industrial Property [Member] | Rantoul, Illinois [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,304
Buildings and Improvements	32,562
Total	33,866
Accumulated Depreciation and Amortization	$ 1,789
Industrial Property [Member] | Rantoul, Illinois [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	20 years
Industrial Property [Member] | Rantoul, Illinois [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Rantoul, Illinois [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	21 years
Industrial Property [Member] | Rockford, Illinois [Member] | Rockford, IL Industrial Acquired Dec-06 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	371
Buildings and Improvements	2,573
Total	2,944
Accumulated Depreciation and Amortization	$ 666
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Rockford, Illinois [Member] | Rockford, IL Industrial Acquired Dec-06, Property 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	509
Buildings and Improvements	5,289
Total	5,798
Accumulated Depreciation and Amortization	$ 1,305
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Plymouth, Indiana [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 5,807
Land and Land Estates	254
Buildings and Improvements	8,110
Total	8,364
Accumulated Depreciation and Amortization	$ 971
Industrial Property [Member] | Plymouth, Indiana [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	3 years
Industrial Property [Member] | Plymouth, Indiana [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	34 years
Industrial Property [Member] | Plymouth, Indiana [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	6 years
Industrial Property [Member] | Plymouth, Indiana [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	12 years
Industrial Property [Member] | Plymouth, Indiana [Member] | Asset Component 3 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	15 years
Industrial Property [Member] | Dry Ridge, Kentucky [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	560
Buildings and Improvements	12,553
Total	13,113
Accumulated Depreciation and Amortization	$ 4,580
Industrial Property [Member] | Dry Ridge, Kentucky [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	22 years
Industrial Property [Member] | Dry Ridge, Kentucky [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Elizabethtown, Kentucky [Member] | Elizabethtown, Kentucky Industrial Acquired Jun-05 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	352
Buildings and Improvements	4,862
Total	5,214
Accumulated Depreciation and Amortization	$ 1,774
Industrial Property [Member] | Elizabethtown, Kentucky [Member] | Elizabethtown, Kentucky Industrial Acquired Jun-05 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	25 years
Industrial Property [Member] | Elizabethtown, Kentucky [Member] | Elizabethtown, Kentucky Industrial Acquired Jun-05 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Elizabethtown, Kentucky [Member] | Elizabethtown, Kentucky Industrial Acquired Jun-05, Property 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	890
Buildings and Improvements	26,868
Total	27,758
Accumulated Depreciation and Amortization	$ 9,804
Industrial Property [Member] | Elizabethtown, Kentucky [Member] | Elizabethtown, Kentucky Industrial Acquired Jun-05, Property 2 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	25 years
Industrial Property [Member] | Elizabethtown, Kentucky [Member] | Elizabethtown, Kentucky Industrial Acquired Jun-05, Property 2 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Hopkinsville, Kentucky [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	631
Buildings and Improvements	16,154
Total	16,785
Accumulated Depreciation and Amortization	$ 6,234
Industrial Property [Member] | Hopkinsville, Kentucky [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	25 years
Industrial Property [Member] | Hopkinsville, Kentucky [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Owensboro, Kentucky [Member] | Owensboro, KY Industrial Acquired Jun-05 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	393
Buildings and Improvements	11,956
Total	12,349
Accumulated Depreciation and Amortization	$ 4,984
Industrial Property [Member] | Owensboro, Kentucky [Member] | Owensboro, KY Industrial Acquired Jun-05 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	25 years
Industrial Property [Member] | Owensboro, Kentucky [Member] | Owensboro, KY Industrial Acquired Jun-05 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Owensboro, Kentucky [Member] | Owensboro, KY Industrial Acquired Dec-06 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	819
Buildings and Improvements	2,439
Total	3,258
Accumulated Depreciation and Amortization	$ 860
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Shreveport, Louisiana [Member] | Shreveport, LA Industrial Acquired Mar-07 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 19,000
Land and Land Estates	860
Buildings and Improvements	21,840
Total	22,700
Accumulated Depreciation and Amortization	$ 4,800
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Shreveport, Louisiana [Member] | Shreveport, LA Industrial Acquired Jun-12 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,078
Buildings and Improvements	10,134
Total	11,212
Accumulated Depreciation and Amortization	$ 1,305
Industrial Property [Member] | Shreveport, Louisiana [Member] | Shreveport, LA Industrial Acquired Jun-12 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	8 years
Industrial Property [Member] | Shreveport, Louisiana [Member] | Shreveport, LA Industrial Acquired Jun-12 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Shreveport, Louisiana [Member] | Shreveport, LA Industrial Acquired Jun-12 [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Industrial Property [Member] | North Berwick, Maine [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 4,810
Land and Land Estates	1,383
Buildings and Improvements	35,659
Total	37,042
Accumulated Depreciation and Amortization	$ 7,713
Industrial Property [Member] | North Berwick, Maine [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Industrial Property [Member] | North Berwick, Maine [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | North Berwick, Maine [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	25 years
Industrial Property [Member] | Kalamazoo, Michigan [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,942
Buildings and Improvements	14,169
Total	16,111
Accumulated Depreciation and Amortization	$ 1,898
Industrial Property [Member] | Kalamazoo, Michigan [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	8 years
Industrial Property [Member] | Kalamazoo, Michigan [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Kalamazoo, Michigan [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	9 years
Industrial Property [Member] | Marshall, Michigan [Member] | Marshall, MI Industrial Acquired Aug-87 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	40
Buildings and Improvements	2,236
Total	2,276
Accumulated Depreciation and Amortization	$ 854
Industrial Property [Member] | Marshall, Michigan [Member] | Marshall, MI Industrial Acquired Aug-87 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	9 years
Industrial Property [Member] | Marshall, Michigan [Member] | Marshall, MI Industrial Acquired Aug-87 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Marshall, Michigan [Member] | Marshall, MI Industrial Acquired Aug-87 [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Industrial Property [Member] | Marshall, Michigan [Member] | Marshall, MI Industrial Acquired Aug-87 [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	12 years
Industrial Property [Member] | Marshall, Michigan [Member] | Marshall, MI Industrial Acquired Aug-87 [Member] | Asset Component 3 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	15 years
Industrial Property [Member] | Marshall, Michigan [Member] | Marshall, MI Industrial Acquired Aug-87 [Member] | Asset Component 4 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	20 years
Industrial Property [Member] | Marshall, Michigan [Member] | Marshall, MI Industrial Acquired Sep-12 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	143
Buildings and Improvements	4,302
Total	4,445
Accumulated Depreciation and Amortization	$ 1,575
Industrial Property [Member] | Marshall, Michigan [Member] | Marshall, MI Industrial Acquired Sep-12 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	4 years
Industrial Property [Member] | Marshall, Michigan [Member] | Marshall, MI Industrial Acquired Sep-12 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Industrial Property [Member] | Marshall, Michigan [Member] | Marshall, MI Industrial Acquired Sep-12 [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	6 years
Industrial Property [Member] | Plymouth, Michigan [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	2,296
Buildings and Improvements	13,608
Total	15,904
Accumulated Depreciation and Amortization	$ 5,124
Industrial Property [Member] | Plymouth, Michigan [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	30 years
Industrial Property [Member] | Plymouth, Michigan [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Temperance, Michigan [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	3,040
Buildings and Improvements	14,924
Total	17,964
Accumulated Depreciation and Amortization	$ 4,139
Industrial Property [Member] | Temperance, Michigan [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	2 years
Industrial Property [Member] | Temperance, Michigan [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Temperance, Michigan [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	5 years
Industrial Property [Member] | Minneapolis, Minnesota [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,886
Buildings and Improvements	1,922
Total	3,808
Accumulated Depreciation and Amortization	$ 204
Industrial Property [Member] | Minneapolis, Minnesota [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	3 years
Industrial Property [Member] | Minneapolis, Minnesota [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Minneapolis, Minnesota [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	29 years
Industrial Property [Member] | Byhalia, Mississippi [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 15,000
Land and Land Estates	1,006
Buildings and Improvements	35,825
Total	36,831
Accumulated Depreciation and Amortization	$ 2,912
Industrial Property [Member] | Byhalia, Mississippi [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	25 years
Industrial Property [Member] | Byhalia, Mississippi [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Canton, Mississippi [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	5,077
Buildings and Improvements	71,289
Total	76,366
Accumulated Depreciation and Amortization	$ 2,590
Industrial Property [Member] | Canton, Mississippi [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	8 years
Industrial Property [Member] | Canton, Mississippi [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	51 years
Industrial Property [Member] | Canton, Mississippi [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	12 years
Industrial Property [Member] | Canton, Mississippi [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	25 years
Industrial Property [Member] | Olive Branch, Mississippi [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	198
Buildings and Improvements	10,276
Total	10,474
Accumulated Depreciation and Amortization	$ 6,771
Industrial Property [Member] | Olive Branch, Mississippi [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	8 years
Industrial Property [Member] | Olive Branch, Mississippi [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Olive Branch, Mississippi [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	15 years
Industrial Property [Member] | Franklin, North Carolina [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	296
Buildings and Improvements	1,320
Total	1,616
Accumulated Depreciation and Amortization	$ 211
Industrial Property [Member] | Franklin, North Carolina [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	2 years
Industrial Property [Member] | Franklin, North Carolina [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	29 years
Industrial Property [Member] | Franklin, North Carolina [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	8 years
Industrial Property [Member] | Henderson, North Carolina [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,488
Buildings and Improvements	5,953
Total	7,441
Accumulated Depreciation and Amortization	$ 2,102
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | High Point, North Carolina [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,330
Buildings and Improvements	11,183
Total	12,513
Accumulated Depreciation and Amortization	$ 5,688
Industrial Property [Member] | High Point, North Carolina [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	18 years
Industrial Property [Member] | High Point, North Carolina [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Lumberton, North Carolina [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	405
Buildings and Improvements	12,049
Total	12,454
Accumulated Depreciation and Amortization	$ 3,488
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Shelby, North Carolina [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,421
Buildings and Improvements	18,862
Total	20,283
Accumulated Depreciation and Amortization	$ 3,180
Industrial Property [Member] | Shelby, North Carolina [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	11 years
Industrial Property [Member] | Shelby, North Carolina [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Shelby, North Carolina [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	20 years
Industrial Property [Member] | Statesville, North Carolina [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	891
Buildings and Improvements	16,771
Total	17,662
Accumulated Depreciation and Amortization	$ 4,561
Industrial Property [Member] | Statesville, North Carolina [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	3 years
Industrial Property [Member] | Statesville, North Carolina [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Statesville, North Carolina [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	15 years
Industrial Property [Member] | Durham, New Hampshire [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	3,464
Buildings and Improvements	18,094
Total	21,558
Accumulated Depreciation and Amortization	$ 5,320
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Erwin, New York [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 7,887
Land and Land Estates	1,648
Buildings and Improvements	12,355
Total	14,003
Accumulated Depreciation and Amortization	$ 1,371
Industrial Property [Member] | Erwin, New York [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	4 years
Industrial Property [Member] | Erwin, New York [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	34 years
Industrial Property [Member] | Erwin, New York [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	8 years
Industrial Property [Member] | Erwin, New York [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Industrial Property [Member] | Long Island City, New York [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 49,144
Land and Land Estates	0
Buildings and Improvements	42,624
Total	42,624
Accumulated Depreciation and Amortization	$ 8,042
Useful life computing depreciation in latest income statement (years)	15 years
Industrial Property [Member] | North Las Vegas, Nevada [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	3,244
Buildings and Improvements	21,732
Total	24,976
Accumulated Depreciation and Amortization	$ 1,053
Industrial Property [Member] | North Las Vegas, Nevada [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	19 years
Industrial Property [Member] | North Las Vegas, Nevada [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | North Las Vegas, Nevada [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	20 years
Industrial Property [Member] | Chillicothe, Ohio [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	735
Buildings and Improvements	9,021
Total	9,756
Accumulated Depreciation and Amortization	$ 1,886
Industrial Property [Member] | Chillicothe, Ohio [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	6 years
Industrial Property [Member] | Chillicothe, Ohio [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	26 years
Industrial Property [Member] | Chillicothe, Ohio [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	15 years
Industrial Property [Member] | Cincinnati, Ohio [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,049
Buildings and Improvements	8,784
Total	9,833
Accumulated Depreciation and Amortization	$ 2,174
Industrial Property [Member] | Cincinnati, Ohio [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Industrial Property [Member] | Cincinnati, Ohio [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Cincinnati, Ohio [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	14 years
Industrial Property [Member] | Glenwillow, Ohio [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 15,326
Land and Land Estates	2,228
Buildings and Improvements	24,530
Total	26,758
Accumulated Depreciation and Amortization	$ 5,979
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Hebron, Ohio [Member] | Hebron, OH Industrial, Acquired Dec-97 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,063
Buildings and Improvements	4,581
Total	5,644
Accumulated Depreciation and Amortization	$ 1,516
Industrial Property [Member] | Hebron, Ohio [Member] | Hebron, OH Industrial, Acquired Dec-97 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Industrial Property [Member] | Hebron, Ohio [Member] | Hebron, OH Industrial, Acquired Dec-97 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Hebron, Ohio [Member] | Hebron, OH Industrial, Acquired Dec-97 [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	15 years
Industrial Property [Member] | Hebron, Ohio [Member] | Hebron, OH Industrial, Acquired Dec-01 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,681
Buildings and Improvements	7,854
Total	9,535
Accumulated Depreciation and Amortization	$ 2,857
Industrial Property [Member] | Hebron, Ohio [Member] | Hebron, OH Industrial, Acquired Dec-01 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	1 year
Industrial Property [Member] | Hebron, Ohio [Member] | Hebron, OH Industrial, Acquired Dec-01 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Hebron, Ohio [Member] | Hebron, OH Industrial, Acquired Dec-01 [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	2 years
Industrial Property [Member] | Hebron, Ohio [Member] | Hebron, OH Industrial, Acquired Dec-01 [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	3 years
Industrial Property [Member] | Hebron, Ohio [Member] | Hebron, OH Industrial, Acquired Dec-01 [Member] | Asset Component 3 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	5 years
Industrial Property [Member] | Hebron, Ohio [Member] | Hebron, OH Industrial, Acquired Dec-01 [Member] | Asset Component 4 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Industrial Property [Member] | Hebron, Ohio [Member] | Hebron, OH Industrial, Acquired Dec-01 [Member] | Asset Component 5 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	15 years
Industrial Property [Member] | Streetsboro, Ohio [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 17,626
Land and Land Estates	2,441
Buildings and Improvements	25,092
Total	27,533
Accumulated Depreciation and Amortization	$ 7,238
Industrial Property [Member] | Streetsboro, Ohio [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	12 years
Industrial Property [Member] | Streetsboro, Ohio [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Streetsboro, Ohio [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	20 years
Industrial Property [Member] | Streetsboro, Ohio [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	25 years
Industrial Property [Member] | Bristol, Pennsylvania [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	2,508
Buildings and Improvements	15,863
Total	18,371
Accumulated Depreciation and Amortization	$ 6,020
Industrial Property [Member] | Bristol, Pennsylvania [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Industrial Property [Member] | Bristol, Pennsylvania [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Bristol, Pennsylvania [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	16 years
Industrial Property [Member] | Bristol, Pennsylvania [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	30 years
Industrial Property [Member] | Chester, South Carolina [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 8,738
Land and Land Estates	1,629
Buildings and Improvements	8,470
Total	10,099
Accumulated Depreciation and Amortization	$ 1,031
Industrial Property [Member] | Chester, South Carolina [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	9 years
Industrial Property [Member] | Chester, South Carolina [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	34 years
Industrial Property [Member] | Chester, South Carolina [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	13 years
Industrial Property [Member] | Duncan, South Carolina [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	884
Buildings and Improvements	8,626
Total	9,510
Accumulated Depreciation and Amortization	$ 1,945
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Laurens, South Carolina [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	5,552
Buildings and Improvements	21,559
Total	27,111
Accumulated Depreciation and Amortization	$ 5,980
Industrial Property [Member] | Laurens, South Carolina [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	2 years
Industrial Property [Member] | Laurens, South Carolina [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Laurens, South Carolina [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	4 years
Industrial Property [Member] | Laurens, South Carolina [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	5 years
Industrial Property [Member] | Laurens, South Carolina [Member] | Asset Component 3 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	20 years
Industrial Property [Member] | Collierville, Tennessee [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	714
Buildings and Improvements	4,783
Total	5,497
Accumulated Depreciation and Amortization	$ 1,951
Industrial Property [Member] | Collierville, Tennessee [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	9 years
Industrial Property [Member] | Collierville, Tennessee [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Collierville, Tennessee [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	14 years
Industrial Property [Member] | Collierville, Tennessee [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	21 years
Industrial Property [Member] | Crossville, Tennessee [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	545
Buildings and Improvements	6,999
Total	7,544
Accumulated Depreciation and Amortization	$ 3,512
Industrial Property [Member] | Crossville, Tennessee [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	17 years
Industrial Property [Member] | Crossville, Tennessee [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Franklin, Tennessee [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	0
Buildings and Improvements	5,673
Total	5,673
Accumulated Depreciation and Amortization	$ 1,659
Industrial Property [Member] | Franklin, Tennessee [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	1 year
Industrial Property [Member] | Franklin, Tennessee [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	12 years
Industrial Property [Member] | Franklin, Tennessee [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	4 years
Industrial Property [Member] | Lewisburg, Tennessee [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	173
Buildings and Improvements	10,865
Total	11,038
Accumulated Depreciation and Amortization	$ 565
Industrial Property [Member] | Lewisburg, Tennessee [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	12 years
Industrial Property [Member] | Lewisburg, Tennessee [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	34 years
Industrial Property [Member] | Lewisburg, Tennessee [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	18 years
Industrial Property [Member] | Millington, Tennessee [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	723
Buildings and Improvements	19,383
Total	20,106
Accumulated Depreciation and Amortization	$ 10,163
Industrial Property [Member] | Millington, Tennessee [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	9 years
Industrial Property [Member] | Millington, Tennessee [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Millington, Tennessee [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Industrial Property [Member] | Millington, Tennessee [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	16 years
Industrial Property [Member] | Brookshire, Texas [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	2,388
Buildings and Improvements	16,614
Total	19,002
Accumulated Depreciation and Amortization	$ 583
Industrial Property [Member] | Brookshire, Texas [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	5 years
Industrial Property [Member] | Brookshire, Texas [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	25 years
Industrial Property [Member] | Brookshire, Texas [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	20 years
Industrial Property [Member] | Waxahachie, Texas [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	652
Buildings and Improvements	13,045
Total	13,697
Accumulated Depreciation and Amortization	$ 9,926
Industrial Property [Member] | Waxahachie, Texas [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Industrial Property [Member] | Waxahachie, Texas [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Waxahachie, Texas [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	16 years
Industrial Property [Member] | Winchester, Virginia [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	3,823
Buildings and Improvements	12,276
Total	16,099
Accumulated Depreciation and Amortization	$ 3,396
Industrial Property [Member] | Winchester, Virginia [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	4 years
Industrial Property [Member] | Winchester, Virginia [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Bingen, Washington [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	0
Buildings and Improvements	18,075
Total	18,075
Accumulated Depreciation and Amortization	$ 1,475
Industrial Property [Member] | Bingen, Washington [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Industrial Property [Member] | Bingen, Washington [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Industrial Property [Member] | Bingen, Washington [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	13 years
Industrial Property [Member] | Richland, Washington [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 110,000
Land and Land Estates	1,293
Buildings and Improvements	126,947
Total	128,240
Accumulated Depreciation and Amortization	$ 876
Industrial Property [Member] | Richland, Washington [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Industrial Property [Member] | Richland, Washington [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	25 years
Industrial Property [Member] | Richland, Washington [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	20 years
Industrial Property [Member] | Oak Creek, Wisconsin [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	3,015
Buildings and Improvements	15,300
Total	18,315
Accumulated Depreciation and Amortization	$ 287
Industrial Property [Member] | Oak Creek, Wisconsin [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Industrial Property [Member] | Oak Creek, Wisconsin [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	25 years
Industrial Property [Member] | Oak Creek, Wisconsin [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	20 years
Land / Infrastructure [Member] | Houston, Texas [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	15,055
Buildings and Improvements	57,949
Total	73,004
Accumulated Depreciation and Amortization	$ 4,960
Land / Infrastructure [Member] | Houston, Texas [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	11 years
Land / Infrastructure [Member] | Houston, Texas [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	35 years
Land / Infrastructure [Member] | Houston, Texas [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	12 years
Land / Infrastructure [Member] | Houston, Texas [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	16 years
Land / Infrastructure [Member] | Venice, Florida [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	4,696
Buildings and Improvements	11,753
Total	16,449
Accumulated Depreciation and Amortization	$ 2,123
Land / Infrastructure [Member] | Venice, Florida [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	5 years
Land / Infrastructure [Member] | Venice, Florida [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	12 years
Land / Infrastructure [Member] | Clive, Iowa [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	371
Buildings and Improvements	0
Total	371
Accumulated Depreciation and Amortization	0
Land / Infrastructure [Member] | Baltimore, Maryland [Member] | Baltimore, MD Land/Infrastructure Acquired Dec-06 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	4,605
Buildings and Improvements	0
Total	4,605
Accumulated Depreciation and Amortization	0
Land / Infrastructure [Member] | Baltimore, Maryland [Member] | Baltimore, MD Land/Infrastructure Acquired Dec-15 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	5,000
Buildings and Improvements	0
Total	5,000
Accumulated Depreciation and Amortization	0
Land / Infrastructure [Member] | New York, New York [Member] | New York, NY Land/Infrastructure, Acquired Oct-13 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	65,218
Buildings and Improvements	0
Total	65,218
Accumulated Depreciation and Amortization	0
Land / Infrastructure [Member] | New York, New York [Member] | New York, NY Land/Infrastructure Acquired Oct-13, Property 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	213,301
Land and Land Estates	73,148
Buildings and Improvements	0
Total	73,148
Accumulated Depreciation and Amortization	0
Land / Infrastructure [Member] | New York, New York [Member] | New York, NY Land/Infrastructure Acquired Oct-13, Property 3 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	86,569
Buildings and Improvements	0
Total	86,569
Accumulated Depreciation and Amortization	0
Land / Infrastructure [Member] | New York, New York [Member] | New York, NY Land/Infrastructure Acquired Oct-14 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	29,193
Land and Land Estates	22,000
Buildings and Improvements	0
Total	22,000
Accumulated Depreciation and Amortization	0
Land / Infrastructure [Member] | Missouri City, Texas [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	14,555
Buildings and Improvements	5,895
Total	20,450
Accumulated Depreciation and Amortization	$ 3,088
Useful life computing depreciation in latest income statement (years)	7 years
Land / Infrastructure [Member] | Danville, Virginia [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	3,454
Buildings and Improvements	0
Total	3,454
Accumulated Depreciation and Amortization	0
Multi-tenanted [Member] | Phoenix, Arizona [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land and Land Estates	1,831
Buildings and Improvements	15,211
Total	17,042
Accumulated Depreciation and Amortization	$ 3,502
Multi-tenanted [Member] | Phoenix, Arizona [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	5 years
Multi-tenanted [Member] | Phoenix, Arizona [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Multi-tenanted [Member] | Palm Beach Gardens, Florida [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	4,066
Buildings and Improvements	21,638
Total	25,704
Accumulated Depreciation and Amortization	$ 7,527
Multi-tenanted [Member] | Palm Beach Gardens, Florida [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	5 years
Multi-tenanted [Member] | Palm Beach Gardens, Florida [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Multi-tenanted [Member] | Florence, South Carolina [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	3,235
Buildings and Improvements	13,141
Total	16,376
Accumulated Depreciation and Amortization	$ 4,540
Multi-tenanted [Member] | Florence, South Carolina [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	10 years
Multi-tenanted [Member] | Florence, South Carolina [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Multi-tenanted [Member] | Florence, South Carolina [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	15 years
Multi-tenanted [Member] | Florence, South Carolina [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	20 years
Multi-tenanted [Member] | Arlington, Texas [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	589
Buildings and Improvements	6,382
Total	6,971
Accumulated Depreciation and Amortization	$ 830
Multi-tenanted [Member] | Arlington, Texas [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	1 year
Multi-tenanted [Member] | Arlington, Texas [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Multi-tenanted [Member] | Arlington, Texas [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	12 years
Multi-tenanted [Member] | Honolulu, Hawaii [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	8,259
Buildings and Improvements	7,363
Total	15,622
Accumulated Depreciation and Amortization	$ 1,759
Multi-tenanted [Member] | Honolulu, Hawaii [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	2 years
Multi-tenanted [Member] | Honolulu, Hawaii [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Multi-tenanted [Member] | Honolulu, Hawaii [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	5 years
Multi-tenanted [Member] | Westmont, Illinios [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	7,812
Buildings and Improvements	1,178
Total	8,990
Accumulated Depreciation and Amortization	$ 24
Useful life computing depreciation in latest income statement (years)	25 years
Multi-tenanted [Member] | Foxboro, Massachusetts [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	2,231
Buildings and Improvements	25,662
Total	27,893
Accumulated Depreciation and Amortization	$ 14,355
Multi-tenanted [Member] | Foxboro, Massachusetts [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	1 year
Multi-tenanted [Member] | Foxboro, Massachusetts [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Multi-tenanted [Member] | Foxboro, Massachusetts [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	16 years
Multi-tenanted [Member] | Southfield, Michigan [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	0
Buildings and Improvements	15,434
Total	15,434
Accumulated Depreciation and Amortization	$ 7,840
Multi-tenanted [Member] | Southfield, Michigan [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	7 years
Multi-tenanted [Member] | Southfield, Michigan [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Multi-tenanted [Member] | Southfield, Michigan [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	16 years
Multi-tenanted [Member] | Southfield, Michigan [Member] | Asset Component 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	25 years
Multi-tenanted [Member] | Bridgeton, Missouri [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	603
Buildings and Improvements	1,271
Total	1,874
Accumulated Depreciation and Amortization	$ 51
Multi-tenanted [Member] | Bridgeton, Missouri [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	3 years
Multi-tenanted [Member] | Bridgeton, Missouri [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	32 years
Multi-tenanted [Member] | Bridgewater, New Jersey [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 14,118
Land and Land Estates	1,415
Buildings and Improvements	6,802
Total	8,217
Accumulated Depreciation and Amortization	$ 438
Multi-tenanted [Member] | Bridgewater, New Jersey [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	8 years
Multi-tenanted [Member] | Bridgewater, New Jersey [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Multi-tenanted [Member] | Bridgewater, New Jersey [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	15 years
Multi-tenanted [Member] | Canonsburg, Pennsylvania [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,705
Buildings and Improvements	10,910
Total	12,615
Accumulated Depreciation and Amortization	$ 4,189
Multi-tenanted [Member] | Canonsburg, Pennsylvania [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	8 years
Multi-tenanted [Member] | Canonsburg, Pennsylvania [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Multi-tenanted [Member] | Antioch, Tennessee [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	3,847
Buildings and Improvements	12,569
Total	16,416
Accumulated Depreciation and Amortization	$ 1,840
Multi-tenanted [Member] | Antioch, Tennessee [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	5 years
Multi-tenanted [Member] | Antioch, Tennessee [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Retail / Specialty [Member] | Manteca, California [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 834
Land and Land Estates	2,082
Buildings and Improvements	6,464
Total	8,546
Accumulated Depreciation and Amortization	$ 1,680
Retail / Specialty [Member] | Manteca, California [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	23 years
Retail / Specialty [Member] | Manteca, California [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Retail / Specialty [Member] | San Diego, California [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 532
Land and Land Estates	0
Buildings and Improvements	13,310
Total	13,310
Accumulated Depreciation and Amortization	$ 2,961
Retail / Specialty [Member] | San Diego, California [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	23 years
Retail / Specialty [Member] | San Diego, California [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Retail / Specialty [Member] | Albany, Georgia [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,468
Buildings and Improvements	5,137
Total	6,605
Accumulated Depreciation and Amortization	$ 344
Retail / Specialty [Member] | Albany, Georgia [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	15 years
Retail / Specialty [Member] | Albany, Georgia [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Retail / Specialty [Member] | Atlanta, Georgia [Member] | Atlanta, GA Retail Acquired Dec-06 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,014
Buildings and Improvements	269
Total	1,283
Accumulated Depreciation and Amortization	$ 297
Useful life computing depreciation in latest income statement (years)	40 years
Retail / Specialty [Member] | Atlanta, Georgia [Member] | Atlanta, GA Retail Acquired Dec-06, Property 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	870
Buildings and Improvements	187
Total	1,057
Accumulated Depreciation and Amortization	$ 242
Useful life computing depreciation in latest income statement (years)	40 years
Retail / Specialty [Member] | Chamblee, Georgia [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	770
Buildings and Improvements	186
Total	956
Accumulated Depreciation and Amortization	$ 237
Useful life computing depreciation in latest income statement (years)	40 years
Retail / Specialty [Member] | Cumming, Georgia [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,558
Buildings and Improvements	1,368
Total	2,926
Accumulated Depreciation and Amortization	$ 666
Useful life computing depreciation in latest income statement (years)	40 years
Retail / Specialty [Member] | Forest Park, Georgia [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	668
Buildings and Improvements	1,242
Total	1,910
Accumulated Depreciation and Amortization	$ 446
Useful life computing depreciation in latest income statement (years)	40 years
Retail / Specialty [Member] | Jonesboro, Georgia [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	778
Buildings and Improvements	146
Total	924
Accumulated Depreciation and Amortization	$ 213
Useful life computing depreciation in latest income statement (years)	40 years
Retail / Specialty [Member] | Stone Mountain, Georgia [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	672
Buildings and Improvements	276
Total	948
Accumulated Depreciation and Amortization	$ 219
Useful life computing depreciation in latest income statement (years)	40 years
Retail / Specialty [Member] | Galesburg, Illinois [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 468
Land and Land Estates	560
Buildings and Improvements	2,366
Total	2,926
Accumulated Depreciation and Amortization	$ 714
Retail / Specialty [Member] | Galesburg, Illinois [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	12 years
Retail / Specialty [Member] | Galesburg, Illinois [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Retail / Specialty [Member] | Lawrence, Indiana [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	404
Buildings and Improvements	1,737
Total	2,141
Accumulated Depreciation and Amortization	$ 399
Useful life computing depreciation in latest income statement (years)	40 years
Retail / Specialty [Member] | Jefferson, North Carolina [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	71
Buildings and Improvements	884
Total	955
Accumulated Depreciation and Amortization	$ 230
Useful life computing depreciation in latest income statement (years)	40 years
Retail / Specialty [Member] | Lexington, North Carolina [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	832
Buildings and Improvements	1,429
Total	2,261
Accumulated Depreciation and Amortization	$ 322
Useful life computing depreciation in latest income statement (years)	40 years
Retail / Specialty [Member] | Thomasville, North Carolina [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	208
Buildings and Improvements	561
Total	769
Accumulated Depreciation and Amortization	$ 73
Useful life computing depreciation in latest income statement (years)	40 years
Retail / Specialty [Member] | Vineland, New Jersey [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	2,698
Buildings and Improvements	12,790
Total	15,488
Accumulated Depreciation and Amortization	$ 505
Retail / Specialty [Member] | Vineland, New Jersey [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	3 years
Retail / Specialty [Member] | Vineland, New Jersey [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Retail / Specialty [Member] | Vineland, New Jersey [Member] | Asset Component 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	28 years
Retail / Specialty [Member] | Portchester, New York [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	3,841
Buildings and Improvements	5,246
Total	9,087
Accumulated Depreciation and Amortization	$ 869
Useful life computing depreciation in latest income statement (years)	40 years
Retail / Specialty [Member] | Watertown, New York [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 785
Land and Land Estates	386
Buildings and Improvements	5,162
Total	5,548
Accumulated Depreciation and Amortization	$ 1,414
Retail / Specialty [Member] | Watertown, New York [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	23 years
Retail / Specialty [Member] | Watertown, New York [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Retail / Specialty [Member] | Canton, Ohio [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	884
Buildings and Improvements	3,534
Total	4,418
Accumulated Depreciation and Amortization	$ 1,248
Useful life computing depreciation in latest income statement (years)	40 years
Retail / Specialty [Member] | Franklin, Ohio [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	213
Buildings and Improvements	262
Total	475
Accumulated Depreciation and Amortization	$ 6
Retail / Specialty [Member] | Franklin, Ohio [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	24 years
Retail / Specialty [Member] | Franklin, Ohio [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	32 years
Retail / Specialty [Member] | Lorain, Ohio [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 1,181
Land and Land Estates	1,893
Buildings and Improvements	7,024
Total	8,917
Accumulated Depreciation and Amortization	$ 1,827
Retail / Specialty [Member] | Lorain, Ohio [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	23 years
Retail / Specialty [Member] | Lorain, Ohio [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years
Retail / Specialty [Member] | Lawton, Oklahoma [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	663
Buildings and Improvements	1,288
Total	1,951
Accumulated Depreciation and Amortization	$ 441
Useful life computing depreciation in latest income statement (years)	40 years
Retail / Specialty [Member] | Oklahoma City, Oklahoma [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,782
Buildings and Improvements	912
Total	2,694
Accumulated Depreciation and Amortization	$ 448
Retail / Specialty [Member] | Oklahoma City, Oklahoma [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	5 years
Retail / Specialty [Member] | Oklahoma City, Oklahoma [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	13 years
Retail / Specialty [Member] | Tulsa, Oklahoma [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	445
Buildings and Improvements	2,433
Total	2,878
Accumulated Depreciation and Amortization	$ 2,405
Retail / Specialty [Member] | Tulsa, Oklahoma [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	14 years
Retail / Specialty [Member] | Tulsa, Oklahoma [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	24 years
Retail / Specialty [Member] | Chattanooga, Tennessee [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	487
Buildings and Improvements	956
Total	1,443
Accumulated Depreciation and Amortization	$ 121
Useful life computing depreciation in latest income statement (years)	40 years
Retail / Specialty [Member] | Paris, Tennessee [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	247
Buildings and Improvements	547
Total	794
Accumulated Depreciation and Amortization	$ 180
Useful life computing depreciation in latest income statement (years)	40 years
Retail / Specialty [Member] | Staunton, Virginia [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	1,028
Buildings and Improvements	326
Total	1,354
Accumulated Depreciation and Amortization	$ 97
Useful life computing depreciation in latest income statement (years)	40 years
Retail / Specialty [Member] | Edmonds, Washington [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 0
Land and Land Estates	0
Buildings and Improvements	3,947
Total	3,947
Accumulated Depreciation and Amortization	$ 1,079
Useful life computing depreciation in latest income statement (years)	40 years
Retail / Specialty [Member] | Fairlea, West Virginia [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 551
Land and Land Estates	501
Buildings and Improvements	1,985
Total	2,486
Accumulated Depreciation and Amortization	$ 490
Retail / Specialty [Member] | Fairlea, West Virginia [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	12 years
Retail / Specialty [Member] | Fairlea, West Virginia [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Useful life computing depreciation in latest income statement (years)	40 years

Schedule III - Real Estate an88

Schedule III - Real Estate and Accumulated Depreciation and Amortization - Summary (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
SEC Schedule III, Real Estate and Accumulated Depreciation Disclosure [Abstract]
Total cost basis for federal income tax purposes	$ 4,600,000
Reconciliation of real estate owned:
Balance at the beginning of year	3,671,560	$ 3,812,294	$ 3,564,466
Additions during year	478,717	210,143	492,437
Properties sold during year	(332,670)	(282,143)	(212,771)
Properties impaired during the year	(11,306)	(65,426)	(31,741)
Other reclassifications	(16,590)	(3,308)	(97)
Balance at end of year	3,789,711	3,671,560	3,812,294
Reconciliation of accumulated depreciation and amortization:
Balance at the beginning of year	795,486	775,617	738,068
Depreciation and amortization expense	124,618	119,156	122,057
Accumulated depreciation and amortization of properties sold, impaired and held for sale during year	(106,268)	(98,698)	(84,508)
Other reclassifications	(1,629)	(589)	0
Balance at end of year	$ 812,207	$ 795,486	$ 775,617