KBS Real Estate Investment Trust II (KBRS) 10-Q 6 Aug 14 2014 Q2 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	6 Months Ended
	Jun. 30, 2014	Aug. 04, 2014
Document and Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	30-Jun-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q2	'
Entity Registrant Name	'KBS Real Estate Investment Trust II, Inc.	'
Entity Central Index Key	'0001411059	'
Entity Filer Category	'Non-accelerated Filer	'
Current Fiscal Year end	'--12-31	'
Entity Common Stock, Shares Outstanding	'	190,835,879

CONSOLIDATED_BALANCE_SHEETS_Un

CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $)	Jun. 30, 2014		Dec. 31, 2013
In Thousands, unless otherwise specified
Real estate:	'		'
Land	$211,347		$211,347
Buildings and improvements	1,189,648		1,184,931
Tenant origination and absorption costs	144,592		153,315
Total real estate held for investment, cost	1,545,587		1,549,593
Less accumulated depreciation and amortization	-238,051		-218,249
Total real estate held for investment, net	1,307,536		1,331,344
Real estate held for sale, net	906,954		1,103,916
Total Real Estate	2,214,490		2,435,260
Real estate loans receivable, net	73,191	[1]	184,828	[1]
Total real estate and real estate-related investments, net	2,287,681		2,620,088
Cash and cash equivalents	167,914		175,042
Marketable securities	172,935		0
Rents and other receivables, net	41,348		38,927
Above-market leases, net	16,297		19,262
Assets related to real estate held for sale	62,405		77,886
Deferred financing costs, prepaid expenses and other assets	27,701		23,095
Total assets	2,776,281		2,954,300
Notes payable:	'		'
Notes payable	776,833		848,190
Notes payable related to real estate held for sale	581,568		673,163
Total notes payable	1,358,401		1,521,353
Accounts payable and accrued liabilities	28,997		24,597
Distributions payable	10,201		10,649
Below-market leases, net	15,074		17,943
Liabilities related to real estate held for sale	2,998		5,040
Other liabilities	24,625		34,674
Total liabilities	1,440,296		1,614,256
Commitments and contingencies (Note 14)	'		'
Redeemable common stock	9,458		70,562
Stockholders’ equity:	'		'
Preferred stock, $.01 par value; 10,000,000 shares authorized, no shares issued and outstanding	0		0
Common stock, $.01 par value; 1,000,000,000 shares authorized, 190,895,234 and 192,269,969 shares issued and outstanding as of June 30, 2014 and December 31, 2013, respectively	1,909		1,923
Additional paid-in capital	1,692,977		1,647,214
Cumulative distributions in excess of net income	-361,050		-369,342
Accumulated other comprehensive loss	-7,309		-10,313
Total stockholders’ equity	1,326,527		1,269,482
Total liabilities and stockholders’ equity	$2,776,281		$2,954,300
[1]	Book value represents outstanding principal balance, adjusted for unamortized acquisition discounts, origination fees and direct origination and acquisition costs.

CONSOLIDATED_BALANCE_SHEETS_Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) (Unaudited) (USD $)	Jun. 30, 2014	Dec. 31, 2013
Statement of Financial Position [Abstract]	'	'
Preferred stock, par value (usd per share)	$0.01	$0.01
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (usd per share)	$0.01	$0.01
Common stock, shares authorized	1,000,000,000	1,000,000,000
Common stock, shares issued	190,895,234	192,269,969
Common stock, shares outstanding	190,895,234	192,269,969

CONSOLIDATED_STATEMENTS_OF_OPE

CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Revenues:	'	'	'	'
Rental income	$62,049	$65,818	$127,264	$127,543
Tenant reimbursements	15,893	16,292	32,562	30,593
Interest income from real estate loans receivable	1,986	8,410	9,950	16,672
Interest income from marketable securities	89	0	89	0
Other operating income	2,699	2,692	5,306	5,291
Total revenues	82,716	93,212	175,171	180,099
Expenses:	'	'	'	'
Operating, maintenance, and management	16,784	16,482	34,980	32,649
Real estate taxes and insurance	12,015	12,960	24,334	23,846
Asset management fees to affiliate	5,631	5,993	11,335	11,484
Real estate acquisition fees to affiliates	0	0	0	1,797
Real estate acquisition fees and expenses	0	7	0	623
General and administrative expenses	1,513	1,222	2,802	2,337
Depreciation and amortization	18,509	30,929	47,352	60,023
Interest expense	15,213	16,198	29,848	31,491
Impairment charge on real estate held for sale	0	0	1,075	0
Total expenses	69,665	83,791	151,726	164,250
Other income:	'	'	'	'
Other interest income	21	11	54	15
Gain on sales of real estate, net	46,647	0	46,647	0
Total other income	46,668	11	46,701	15
Net income	$59,719	$9,432	$70,146	$15,864
Net income per common share, basic and diluted	$0.31	$0.05	$0.37	$0.08
Weighted-average number of common shares outstanding, basic and diluted	191,328,706	192,172,909	191,939,971	191,743,406

CONSOLIDATED_STATEMENTS_OF_COM

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Statement of Comprehensive Income [Abstract]	'	'	'	'
Net income	$59,719	$9,432	$70,146	$15,864
Other comprehensive income:	'	'	'	'
Unrealized gains on derivative instruments	549	3,234	1,728	4,539
Unrealized loss on marketable securities	-67	0	-67	0
Reclassification of unrealized losses due to hedge ineffectiveness	0	0	822	0
Reclassification of realized losses on derivative instruments	364	277	521	357
Total other comprehensive income	846	3,511	3,004	4,896
Total comprehensive income	$60,565	$12,943	$73,150	$20,760

CONSOLIDATED_STATEMENTS_OF_STO

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) (USD $)	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Cumulative Distributions and Net Income (Loss) [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
In Thousands, except Share data, unless otherwise specified
Balance, value at Apr. 21, 2008	'	'	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'
Redemptions of common stock, shares	'	-22,709,903	'	'	'
Redemptions of common stock, value	($227,100)	'	'	'	'
Balance, value at Jun. 30, 2014	1,326,527	1,909	'	'	'
Balance, shares at Jun. 30, 2014	190,895,234	190,895,234	'	'	'
Balance, value at Dec. 31, 2012	1,329,031	1,903	1,633,994	-289,737	-17,129
Balance, shares at Dec. 31, 2012	'	190,274,167	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'
Net income	55,779	'	'	55,779	'
Other comprehensive income	6,816	'	'	'	6,816
Issuance of common stock, shares	'	7,214,805	'	'	'
Issuance of common stock, value	70,562	72	70,490	'	'
Redemptions of common stock, shares	'	-5,219,003	'	'	'
Redemptions of common stock, value	-53,168	-52	-53,116	'	'
Transfers from/ (to) redeemable common stock	-4,135	'	-4,135	'	'
Distributions declared	-135,384	'	'	-135,384	'
Other offering costs	-19	'	-19	'	'
Balance, value at Dec. 31, 2013	1,269,482	1,923	1,647,214	-369,342	-10,313
Balance, shares at Dec. 31, 2013	192,269,969	192,269,969	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'
Net income	70,146	'	'	70,146	'
Other comprehensive income	3,004	'	'	'	3,004
Issuance of common stock, shares	'	2,749,008	'	'	'
Issuance of common stock, value	26,885	28	26,857	'	'
Redemptions of common stock, shares	'	-4,123,743	'	'	'
Redemptions of common stock, value	-42,217	-42	-42,175	'	'
Transfers from/ (to) redeemable common stock	61,081	'	61,081	'	'
Distributions declared	-61,854	'	'	-61,854	'
Balance, value at Jun. 30, 2014	$1,326,527	$1,909	$1,692,977	($361,050)	($7,309)
Balance, shares at Jun. 30, 2014	190,895,234	190,895,234	'	'	'

CONSOLIDATED_STATEMENTS_OF_CAS

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Cash Flows from Operating Activities:	'	'
Net income	$70,146	$15,864
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation and amortization	47,352	60,023
Impairment charge on real estate held for sale	1,075	0
Noncash interest income on real estate-related investments	-112	-2,388
Deferred rent	-3,717	-6,689
Bad debt expense	390	461
Amortization of above- and below-market leases, net	1,532	992
Amortization of deferred financing costs	2,759	1,558
Reclassification of realized losses on derivative instruments	277	357
Unrealized losses due to hedge ineffectiveness	862	0
Change in fair value of contingent consideration	0	-31
Gain on sale of real estate, net	-46,647	0
Changes in operating assets and liabilities:	'	'
Rents and other receivables	-1,830	-3,111
Prepaid expenses and other assets	-6,314	-3,329
Accounts payable and accrued liabilities	482	1,341
Other liabilities	-7,908	-1,203
Net cash provided by operating activities	58,347	63,845
Cash Flows from Investing Activities:	'	'
Acquisitions of real estate	0	-238,952
Improvements to real estate	-11,509	-6,562
Proceeds from sale of real estate	247,884	0
Investments in real estate loans receivable	0	-2,620
Investments in marketable securities	173,002	0
Principal repayments on real estate loans receivable	61	890
Proceeds from the early payoff of real estate loans receivable	111,688	0
Net cash provided by (used in) investing activities	175,122	-247,244
Cash Flows from Financing Activities:	'	'
Proceeds from notes payable	0	378,000
Principal payments on notes payable	-162,952	-81,171
Payments of deferred financing costs	-11	-2,936
Return of contingent consideration related to acquisition of real estate	0	268
Payments to redeem common stock	-42,217	-21,352
Payments of other offering costs	0	-19
Distributions paid to common stockholders	-35,417	-34,480
Net cash (used in) provided by financing activities	-240,597	238,310
Net (decrease) increase in cash and cash equivalents	-7,128	54,911
Cash and cash equivalents, beginning of period	175,042	48,390
Cash and cash equivalents, end of period	167,914	103,301
Supplemental Disclosure of Cash Flow Information:	'	'
Interest paid	26,315	29,583
Supplemental Disclosure of Noncash Transactions:	'	'
Decrease in distributions payable	-448	-246
Increase in redeemable common stock payable	0	10,313
Increase in accrued improvements to real estate	2,484	4,533
Distributions paid to common stockholders through common stock issuances pursuant to the dividend reinvestment plan	$26,885	$37,915

ORGANIZATION

ORGANIZATION	6 Months Ended
	Jun. 30, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
ORGANIZATION	'
	ORGANIZATION
	KBS Real Estate Investment Trust II, Inc. (the “Company”) was formed on July 12, 2007 as a Maryland corporation that elected to be taxed as a real estate investment trust (“REIT”) beginning with the taxable year ended December 31, 2008. The Company conducts its business primarily through KBS Limited Partnership II, a Delaware limited partnership formed on August 23, 2007 (the “Operating Partnership”), and its subsidiaries. The Company is the sole general partner of and directly owns a 0.1% partnership interest in the Operating Partnership. The Company’s wholly-owned subsidiary, KBS REIT Holdings II LLC, a Delaware limited liability company formed on August 23, 2007 (“KBS REIT Holdings II”), owns the remaining 99.9% partnership interest in the Operating Partnership and is its sole limited partner.
	The Company owns a diverse portfolio of real estate and real estate-related investments. As of June 30, 2014, the Company owned 23 real estate properties (consisting of 17 office properties, one office/flex property, a portfolio of four industrial properties and an office campus consisting of eight office buildings) and two real estate loans receivable. As of June 30, 2014, six of the Company’s real estate properties were classified as held for sale.
	Subject to certain restrictions and limitations, the business of the Company is managed by KBS Capital Advisors LLC (the “Advisor”), an affiliate of the Company, pursuant to an advisory agreement the Company renewed with the Advisor on May 21, 2014 (the “Advisory Agreement”). The Advisory Agreement may be renewed for an unlimited number of one-year periods upon the mutual consent of the Advisor and the Company. Either party may terminate the Advisory Agreement upon 60 days’ written notice. The Advisor owns 20,000 shares of the Company’s common stock.
	Upon commencing its initial public offering (the “Offering”), the Company retained KBS Capital Markets Group LLC (the “Dealer Manager”), an affiliate of the Advisor, to serve as the dealer manager of the Offering pursuant to a dealer manager agreement, as amended and restated on April 30, 2010 (the “Dealer Manager Agreement”). The Company ceased offering shares of common stock in its primary offering on December 31, 2010 and terminated its primary offering on March 22, 2011. The Company terminated its dividend reinvestment plan effective May 29, 2014.
	The Company sold 182,681,633 shares of common stock in its primary offering for gross offering proceeds of $1.8 billion. Through the termination of the Company’s dividend reinvestment plan on May 29, 2014, the Company had sold 30,903,504 shares of common stock under its dividend reinvestment plan for gross offering proceeds of $298.2 million. Also as of June 30, 2014, the Company had redeemed 22,709,903 shares sold in the Offering for $227.1 million.

SUMMARY_OF_SIGNIFICANT_ACCOUNT

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	6 Months Ended
	Jun. 30, 2014
Accounting Policies [Abstract]	'
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	'
	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
	There have been no significant changes to the Company’s accounting policies, except for the addition of an accounting policy with respect to investments in marketable securities, since it filed its audited financial statements in its Annual Report on Form 10-K for the year ended December 31, 2013. During the six months ended June 30, 2014, the Company adopted ASU No. 2014-08 (defined below), which impacts the Company’s reporting of discontinued operations. For further information about the Company’s accounting policies, refer to the Company’s consolidated financial statements and notes thereto for the year ended December 31, 2013 included in the Company’s Annual Report on Form 10-K filed with the Securities and Exchange Commission (the “SEC”).
	Principles of Consolidation and Basis of Presentation
	The accompanying unaudited consolidated financial statements and condensed notes thereto have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information as contained within the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) and the rules and regulations of the SEC, including the instructions to Form 10-Q and Article 10 of Regulation S-X.  Accordingly, the unaudited consolidated financial statements do not include all of the information and footnotes required by GAAP for audited financial statements.  In the opinion of management, the financial statements for the unaudited interim periods presented include all adjustments, which are of a normal and recurring nature, necessary for a fair and consistent presentation of the results for such periods.  Operating results for the six months ended June 30, 2014 are not necessarily indicative of the results that may be expected for the year ending December 31, 2014.
	The consolidated financial statements include the accounts of the Company, KBS REIT Holdings II, the Operating Partnership, and their direct and indirect wholly owned subsidiaries.  All significant intercompany balances and transactions are eliminated in consolidation.
	Use of Estimates
	The preparation of the consolidated financial statements and condensed notes thereto in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could materially differ from those estimates.
	Reclassifications
	Certain amounts in the Company’s prior period consolidated financial statements have been reclassified to conform to the current period presentation.  These reclassifications have not changed the results of operations of prior periods.  During the six months ended June 30, 2014, the Company sold three office properties, one industrial property and a leasehold interest in one industrial property and classified six office properties as held for sale.  As a result, certain assets and liabilities were reclassified to held for sale on the consolidated balance sheets for all periods presented.
	Marketable Securities
	The Company classifies its investments in marketable securities as available-for-sale, since the Company may sell them prior to their maturity but does not hold them principally for the purpose of making frequent investments and sales with the objective of generating profits on short-term differences in price. These investments are carried at estimated fair value, with unrealized gains and losses reported in accumulated other comprehensive income (loss). Estimated fair values are generally based on quoted market prices, when available, or on estimates provided by independent pricing sources or dealers who make markets in such securities. In certain circumstances, such as when the market for the securities becomes inactive, the Company may determine it is appropriate to perform an internal valuation of the securities. Upon the sale of a security, the previously recognized unrealized gain (loss) is reversed out of accumulated other comprehensive income (loss) and the actual realized gain (loss) is recognized in earnings.
	On a quarterly basis, the Company evaluates its marketable securities for other-than-temporary impairment. The Company reviews the projected future cash flows from these securities for changes in assumptions due to prepayments, credit loss experience and other factors. If, based on the Company’s quarterly estimate of cash flows, there has been an adverse change in the estimated cash flows from the cash flows previously estimated, the present value of the revised cash flows is less than the present value previously estimated, and the fair value of the securities is less than their amortized cost basis, an other-than-temporary impairment is deemed to have occurred.
	The Company recognizes interest income on marketable securities that are beneficial interests in securitized financial assets and are rated “AA” and above on an accrual basis according to the contractual terms of the securities. Discounts or premiums are amortized to interest income over the life of the investment using the interest method.
	The Company recognizes interest income on marketable securities that are beneficial interests in securitized financial assets that are rated below “AA” using the effective yield method, which requires the Company to periodically project estimated cash flows related to these securities and recognize interest income at an interest rate equivalent to the estimated yield on the security, as calculated using the security’s estimated cash flows and amortized cost basis, or reference amount. Changes in the estimated cash flows are recognized through an adjustment to the yield on the security on a prospective basis. Projecting cash flows for these types of securities requires significant judgment, which may have a significant impact on the timing of revenue recognized on these investments.
	The Company is required to distinguish between other-than-temporary impairments related to credit and other-than-temporary impairments related to other factors (e.g., market fluctuations) on its debt securities that it does not intend to sell and where it is not likely that the Company will be required to sell the security prior to the anticipated recovery of its amortized cost basis. The Company calculates the credit component of the other-than-temporary impairment as the difference between the amortized cost basis of the security and the present value of its estimated cash flows discounted at the yield used to recognize interest income. The credit component will be charged to earnings and the component related to other factors is recorded to other comprehensive income (loss).
	Redeemable Common Stock
	On May 15, 2014, the Company’s board of directors approved the amendment and restatement of the Company’s share redemption program (the “Amended Share Redemption Program”) to provide only for redemptions sought upon a stockholder’s death, “qualifying disability” or “determination of incompetence” (each as defined in the Amended Share Redemption Program, and collectively “special redemptions”). During each calendar year, such special redemptions are limited to an annual dollar amount determined by the board of directors, which may be reviewed during the year and increased or decreased upon ten business days’ notice to the Company’s stockholders. The Company may provide notice by including such information (a) in a Current Report on Form 8-K or in its annual or quarterly reports, all publicly filed with the Securities and Exchange Commission or (b) in a separate mailing to the stockholders.
	Commencing with the June 2014 redemption date, the dollar amount limitation for special redemptions for the remainder of calendar year 2014 is $10.0 million in the aggregate, as may be reviewed and adjusted from time to time by the board of directors. Based on historical redemption data, the board of directors believes that the $10.0 million redemption limitation for the remainder of calendar year 2014 will be sufficient for these special redemptions. The Amended Share Redemption Program became effective on June 18, 2014. As of June 30, 2014, the Company had $9.5 million available for special redemptions for the remainder of 2014. There were no other changes to the terms of special redemptions, and special redemptions will continue to be made at a price per share equal to the most recent estimated value per share of the Company’s common stock as of the applicable redemption date. The Company currently does not expect to make ordinary redemptions in the future.
	Per Share Data
	Basic net income (loss) per share of common stock is calculated by dividing net income (loss) by the weighted-average number of shares of common stock issued and outstanding during such period. Diluted net income (loss) per share of common stock equals basic net income (loss) per share of common stock as there were no potentially dilutive securities outstanding during the six months ended June 30, 2014 and 2013, respectively.
	Distributions declared per common share were $0.162 and $0.322 for the three and six months ended June 30, 2014, respectively, and $0.162 and $0.376 for the three and six months ended June 30, 2013, respectively. Distributions declared per common share assumes each share was issued and outstanding each day during the three and six months ended June 30, 2014 and 2013, respectively. For each day that was a record date for distributions during the three and six months ended June 30, 2014 and 2013, distributions were calculated at a rate of $0.00178082 per share per day. Each day during the periods from January 1, 2014 through June 30, 2014 and January 1, 2013 through June 30, 2013 was a record date for distributions. Additionally, the Company’s board of directors declared a distribution in the amount of $0.05416667 per share of common stock to stockholders of record as of the close of business on February 4, 2013.
	Segments
	The Company’s segments are based on the Company’s method of internal reporting, which classifies its operations by investment type: real estate and real estate-related. For financial data by segment, see Note 13, “Segment Information.”
	Recently Issued Accounting Standards Update
	In April 2014, the FASB issued ASU No. 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 (“ASU No. 2014-08”).  ASU No. 2014-08 limits discontinued operations reporting to disposals of components of an entity that represents a strategic shift that has (or will have) a major effect on an entity’s operations and financial results when any of the following occurs: a) the component of an entity or group of components of an entity meets the criteria to be classified as held for sale; b) the component of an entity or group of components of an entity is disposed of by sale; and c) the component of an entity or group of components of an entity is disposed of other than by sale.  ASU No. 2014-08 also requires additional disclosures about discontinued operations.  ASU No. 2014-08 is effective for reporting periods beginning after December 15, 2014.  Early adoption is permitted, but only for disposals (or classifications as held for sale) that have not been reported in financial statements previously issued or available for issuance. The Company early adopted ASU No. 2014-08 for the reporting period beginning January 1, 2014.  As a result of the adoption of ASU No. 2014-08, results of operations for properties that are classified as held for sale in the ordinary course of business on or subsequent to January 1, 2014 would generally be included in continuing operations on the Company’s consolidated statements of operations, to the extent such disposals did not meet the criteria for classification as a discontinued operation described above. Additionally, any gain or loss on sale of real estate that does not meet the criteria for classification as a discontinued operation would be included in income from continuing operations on the consolidated statements of operations.
	In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) (“ASU No. 2014-09”). ASU No. 2014-09 requires an entity to recognize the revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods and services.  ASU No. 2014-09 supersedes the revenue requirements in Revenue Recognition (Topic 605) and most industry-specific guidance throughout the Industry Topics of the Codification.  ASU No. 2014-09 does not apply to lease contracts within the scope of Leases (Topic 840). ASU No. 2014-09 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2016, and is to be applied retrospectively, with early application not permitted.  The Company does not expect the adoption of ASU No. 2014-09 to have an impact on its financial statements.

REAL_ESTATE_HELD_FOR_INVESTMEN

REAL ESTATE HELD FOR INVESTMENT	6 Months Ended
	Jun. 30, 2014
Real Estate [Abstract]	'
REAL ESTATE HELD FOR INVESTMENT	'
	REAL ESTATE HELD FOR INVESTMENT
	As of June 30, 2014, the Company’s portfolio of real estate held for investment was composed of 11 office properties, one office/flex property, a portfolio of four industrial properties and an office campus consisting of eight office buildings, encompassing in the aggregate approximately 7.4 million rentable square feet. For a discussion of the Company’s real estate properties held for sale, see Note 7, “Real Estate Held for Sale.” As of June 30, 2014, the Company’s real estate portfolio was 91% occupied. The following table summarizes the Company’s real estate portfolio held for investment as of June 30, 2014 and December 31, 2013 (in thousands):
			Land				Buildings and				Tenant Origination and Absorption Costs			Total Real Estate Held for Investment
							Improvements
	As of June 30, 2014:
	Office		$	204,097			$	1,126,981			$	132,182		$	1,463,260
	Industrial		7,250				62,667				12,410			82,327
	Total real estate, cost		$	211,347			$	1,189,648			$	144,592		$	1,545,587
	Accumulated depreciation and amortization		—				(160,780		)		(77,271		)	(238,051		)
	Total real estate held for investment, net		$	211,347			$	1,028,868			$	67,321		$	1,307,536
	As of December 31, 2013:
	Office		$	204,097			$	1,122,276			$	140,905		$	1,467,278
	Industrial		7,250				62,655				12,410			82,315
	Total real estate, cost		$	211,347			$	1,184,931			$	153,315		$	1,549,593
	Accumulated depreciation and amortization		—				(143,941		)		(74,308		)	(218,249		)
	Total real estate held for investment, net		$	211,347			$	1,040,990			$	79,007		$	1,331,344
	Operating Leases
	The Company’s real estate properties are leased to tenants under operating leases for which the terms and expirations vary. As of June 30, 2014, the leases had remaining terms, excluding options to extend, of up to 15.3 years with a weighted-average remaining term of 4.2 years. Some of the leases have provisions to extend the term of the leases, options for early termination for all or part of the leased premises after paying a specified penalty, rights of first refusal to purchase the property at competitive market rates, and other terms and conditions as negotiated. The Company retains substantially all of the risks and benefits of ownership of the real estate assets leased to tenants. Generally, upon the execution of a lease, the Company requires a security deposit from the tenant in the form of a cash deposit and/or a letter of credit. The amount required as a security deposit varies depending upon the terms of the respective lease and the creditworthiness of the tenant, but generally is not a significant amount. Therefore, exposure to credit risk exists to the extent that a receivable from a tenant exceeds the amount of its security deposit. Security deposits received in cash related to tenant leases are included in other liabilities in the accompanying consolidated balance sheets and totaled $4.0 million and $4.6 million as of June 30, 2014 and December 31, 2013, respectively.
	During the six months ended June 30, 2014 and 2013, the Company recognized deferred rent from tenants, net of lease incentive amortization, of $3.7 million and $6.7 million, respectively. As of June 30, 2014 and December 31, 2013, the cumulative deferred rent balance was $37.7 million and $34.8 million, respectively, and is included in rents and other receivables on the accompanying balance sheets. The cumulative deferred rent balance included $3.6 million and $3.2 million of unamortized lease incentives as of June 30, 2014 and December 31, 2013, respectively.
	As of June 30, 2014, the future minimum rental income from the Company’s properties under non-cancelable operating leases was as follows (in thousands):
	July 1, 2014 through December 31, 2014	$	73,819
	2015	142,631
	2016	131,497
	2017	116,845
	2018	89,997
	Thereafter	231,537
		$	786,326
	As of June 30, 2014, the Company had over 300 tenants over a diverse range of industries and geographic areas. The Company’s highest tenant industry concentrations (greater than 10% of annualized base rent) were as follows:
	Industry		Number of Tenants		Annualized				Percentage of Annualized Base Rent
					Base Rent (1)
					(in thousands)
	Finance		42		$	32,836			21.4	%
	Computer System Design & Programming		12		25,000				16.3	%
	Legal Services		50		20,268				13.2	%
					$	78,104			50.9	%
	_____________________
	(1) Annualized base rent represents annualized contractual base rental income as of June 30, 2014, adjusted to straight-line any contractual tenant concessions (including free rent), rent increases and rent decreases from the lease’s inception through the balance of the lease term.
	No other tenant industries accounted for more than 10% of annualized base rent. No material tenant credit issues have been identified at this time. During the six months ended June 30, 2014 and 2013, the Company recorded bad debt expense of $0.4 million and $0.5 million, respectively. As of June 30, 2014, the Company had a bad debt expense reserve of approximately $0.7 million, which represents less than 1% of its annualized base rent.
	As of June 30, 2014, there were no leases that accounted for more than 10% of annualized base rent.
	Geographic Concentration Risk
	As of June 30, 2014, the Company’s net investments in real estate in California and New Jersey represented 17.1% and 11.4% of the Company’s total assets, respectively.  As a result, the geographic concentration of the Company’s portfolio makes it particularly susceptible to adverse economic developments in the California and New Jersey real estate markets.  Any adverse economic or real estate developments in these markets, such as business layoffs or downsizing, industry slowdowns, relocations of businesses, changing demographics and other factors, or any decrease in demand for office space resulting from the local business climate, could adversely affect the Company’s operating results and its ability to make distributions to stockholders. Additionally, as of June 30, 2014, the Company owned one office property held for sale located in Chicago, Illinois which represented approximately 19.7% of the Company’s total assets and 20.0% of the Company’s total revenues. See Note 7, “Real Estate Held for Sale.”

TENANT_ORIGINATION_AND_ABSORPT

TENANT ORIGINATION AND ABSORPTION COSTS, ABOVE-MARKET LEASE ASSETS AND BELOW-MARKET LEASE LIABILITIES	6 Months Ended
	Jun. 30, 2014
Tenant Origination and Absorption Costs, Above-Market Lease Assets and Below-Market Lease Liabilities [Abstract]	'
TENANT ORIGINATION AND ABSORPTION COSTS, ABOVE-MARKET LEASE ASSETS AND BELOW-MARKET LEASE LIABILITIES	'
	TENANT ORIGINATION AND ABSORPTION COSTS, ABOVE-MARKET LEASE ASSETS AND BELOW-MARKET LEASE LIABILITIES
	As of June 30, 2014 and December 31, 2013, the Company’s tenant origination and absorption costs, above-market lease assets and below-market lease liabilities (excluding fully amortized assets and liabilities and accumulated amortization) were as follows (in thousands):
		Tenant Origination and						Above-Market						Below-Market
		Absorption Costs						Lease Assets						Lease Liabilities
		June 30,			December 31,			June 30,			December 31,			June 30,			December 31,
		2014			2013			2014			2013			2014			2013
	Cost	$	144,592		$	153,315		$	29,222		$	29,569		$	(37,451	)	$	(39,487	)
	Accumulated Amortization	(77,271		)	(74,308		)	(12,925		)	(10,307		)	22,377			21,544
	Net Amount	$	67,321		$	79,007		$	16,297		$	19,262		$	(15,074	)	$	(17,943	)
	Increases (decreases) in net income as a result of amortization of the Company’s tenant origination and absorption costs, above-market lease assets and below-market lease liabilities for the three and six months ended June 30, 2014 and 2013 were as follows (in thousands):
		Tenant Origination and						Above-Market						Below-Market
		Absorption Costs						Lease Assets						Lease Liabilities
		For the Three Months Ended June 30,						For the Three Months Ended June 30,						For the Three Months Ended June 30,
		2014			2013			2014			2013			2014			2013
	Amortization	$	(6,164	)	$	(10,701	)	$	(2,702	)	$	(2,558	)	$	1,676		$	2,062
		Tenant Origination and						Above-Market						Below-Market
		Absorption Costs						Lease Assets						Lease Liabilities
		For the Six Months Ended June 30,						For the Six Months Ended June 30,						For the Six Months Ended June 30,
		2014			2013			2014			2013			2014			2013
	Amortization	$	(15,230	)	$	(20,873	)	$	(5,077	)	$	(4,750	)	$	3,545		$	3,758

REAL_ESTATE_LOANS_RECEIVABLE

REAL ESTATE LOANS RECEIVABLE	6 Months Ended
	Jun. 30, 2014
Receivables [Abstract]	'
REAL ESTATE LOANS RECEIVABLE	'
	REAL ESTATE LOANS RECEIVABLE
	As of June 30, 2014 and December 31, 2013, the Company, through indirect wholly owned subsidiaries, had invested in or originated real estate loans receivable as follows (dollars in thousands):
	Loan Name		Date Acquired/ Originated		Property Type	Loan Type		Outstanding Principal Balance as of June 30,				Book Value				Book Value		Contractual Interest Rate (3)	Annualized Effective Interest Rate (3)	Maturity Date (4)
	Location of Related Property or Collateral							2014 (1)				as of				as of
												June 30,				December 31,
												2014 (2)				2013 (2)
	Sheraton Charlotte Airport Hotel First Mortgage
	Charlotte, North Carolina		7/11/11		Hotel	Mortgage		$	14,402			$	14,415			$	14,477	7.50%	7.60%	8/1/18
	Summit I & II First Mortgage
	Reston, Virginia		1/17/12		Office	Mortgage		58,750				58,776				58,781		7.50%	7.60%	2/1/17
	Tuscan Inn First Mortgage Origination (5)
	San Francisco, California		1/21/10		Hotel	Mortgage		—				—				20,077		(5)	(5)	(5)
	Chase Tower First Mortgage Origination (6)
	Austin, Texas		1/25/10		Office	Mortgage		—				—				58,820		(6)	(6)	(6)
	Pappas Commerce First Mortgage Origination (7)
	Boston, Massachusetts		4/5/10		Industrial	Mortgage		—				—				32,673		(7)	(7)	(7)
								$	73,152			$	73,191			$	184,828
	_____________________
	(1) Outstanding principal balance as of June 30, 2014 represents original principal balance outstanding under the loan, increased for any subsequent fundings and reduced for any principal paydowns.
	(2) Book value represents outstanding principal balance, adjusted for unamortized acquisition discounts, origination fees and direct origination and acquisition costs.
	(3) Contractual interest rate is the stated interest rate on the face of the loan. Annualized effective interest rate is calculated as the actual interest income recognized in 2014, using the interest method, annualized and divided by the average amortized cost basis of the investment. The contractual interest rates and annualized effective interest rates presented are as of June 30, 2014.
	(4) Maturity dates are as of June 30, 2014; subject to certain conditions, the maturity dates of certain real estate loans receivable may be extended beyond the maturity date shown.
	(5) On February 7, 2014, the Company, through an indirect wholly owned subsidiary, entered into an early payoff agreement with the borrower of the Tuscan Inn First Mortgage Origination, pursuant to which the borrower of the Tuscan Inn First Mortgage Origination paid off the entire principal balance outstanding of $20.2 million and accrued interest.
	(6) On February 14, 2014, the Company, through an indirect wholly owned subsidiary, entered into an early payoff agreement with the borrower of the Chase Tower First Mortgage Origination, pursuant to which the borrower of the Chase Tower Mortgage Origination paid off the entire principal balance outstanding $58.9 million and accrued interest. Additionally, the borrower paid a yield maintenance premium of $4.9 million in accordance with the early payoff agreement, which was recorded in interest income from real estate loans receivable.
	(7) On June 9, 2014, the borrower under the Pappas Commerce First Mortgage Origination paid off the entire principal balance outstanding of $32.7 million plus accrued interest. The Pappas Commerce First Mortgage had an original maturity date of July 1, 2014.
	The following summarizes the activity related to real estate loans receivable for the six months ended June 30, 2014 (in thousands):
	Real estate loans receivable - December 31, 2013	$	184,828
	Principal repayments received on real estate loans receivable	(61		)
	Payoff of real estate loans receivable	(111,688		)
	Amortization of closing costs and origination fees on real estate loans receivable	112
	Real estate loans receivable - June 30, 2014	$	73,191
	For the three and six months ended June 30, 2014 and 2013, interest income from real estate loans receivable consisted of the following (in thousands):
			Three Months Ended June 30,							Six Months Ended June 30,
			2014			2013				2014				2013
	Contractual interest income		$	1,989		$	7,190			$	4,921			$	14,284
	Prepayment fee received on real estate loan receivable		—			—				4,917				—
	Accretion of purchase discounts		—			1,358				—				2,659
	Amortization of closing costs and origination fees		(3		)	(138		)		112				(271		)
	Interest income from real estate loans receivable		$	1,986		$	8,410			$	9,950			$	16,672
	As of June 30, 2014 and December 31, 2013, interest receivable from real estate loans receivable was $0.5 million and $1.3 million, respectively, and was included in rents and other receivables.

MARKETABLE_SECURITIES

MARKETABLE SECURITIES	6 Months Ended
	Jun. 30, 2014
Investments, Debt and Equity Securities [Abstract]	'
MARKETABLE SECURITIES	'
	MARKETABLE SECURITIES
	During the six months ended June 30, 2014, the Company made investments in four separate marketable securities, which it classified as available-for-sale. As of June 30, 2014, the Company had invested in marketable securities as follows (in thousands):
	Security Name	Ticker		Cost				Fair Value				Unrealized Gain (Loss)
	PIMCO Enhanced Short Maturity ETF	MINT		$	54,996			$	54,947			$	(49	)
	Pioneer Funds Multi Asset Ultrashort Inc.	MYFRX		60,006				59,981				(25		)
	Guggenheim Enhanced Short Duration ETF	GSY		20,000				20,007				7
	Wells Fargo Advantage Ultra Short Income Fund	SADIX		38,000				38,000				—
				$	173,002			$	172,935			$	(67	)
	As of June 30, 2014, the Company determined the fair value of its marketable securities to be $172.9 million, resulting in unrealized losses of $0.1 million for the six months ended June 30, 2014. The cumulative unrealized loss of $0.1 million on the Company’s investments in marketable securities as of June 30, 2014 was not determined to be other-than-temporary because the Company did not experience an adverse change to its cash flow estimates for the securities.
	During the six months ended June 30, 2014, the Company did not recognize any other-than-temporary impairments on its real estate securities. It is difficult to predict the timing or magnitude of other-than-temporary impairments and significant judgments are required in determining impairments, including, but not limited to, assumptions regarding estimated prepayments, losses and changes in interest rates. As a result, actual realized losses could materially differ from these estimates.
	The following table presents the fair value and unrealized losses of the Company’s investments in marketable securities as of June 30, 2014 (in thousands):
		Holding Period of Unrealized Losses of Investments in Real Estate Securities
		Less Than 12 Months								12 Months or More						Total
	Security	Fair Value				Unrealized Losses				Fair Value				Unrealized Losses		Fair Value		Unrealized Losses
	PIMCO Enhanced Short Maturity ETF	$	54,947			$	(49	)		$	—			$	—	$	54,947	$	(49	)
	Pioneer Funds Multi Asset Ultrashort Inc.	59,981				(25		)		—				—		59,981		(25		)

REAL_ESTATE_HELD_FOR_SALE

REAL ESTATE HELD FOR SALE	6 Months Ended
	Jun. 30, 2014
Discontinued Operations and Disposal Groups [Abstract]	'
REAL ESTATE HELD FOR SALE	'
	REAL ESTATE HELD FOR SALE
	During the six months ended June 30, 2014, the Company disposed of three office properties, one industrial property and a leasehold interest in one industrial property. Additionally, as of June 30, 2014, the Company classified six office properties with an aggregate net book value of $965.5 million as held for sale. In accordance with the Company’s early adoption of ASU No. 2014-08, properties that are classified as held for sale in the ordinary course of business on or subsequent to January 1, 2014 would generally be included in continuing operations on the Company’s consolidated statements of operations. The results of operations for all properties that were sold during the six months ended June 30, 2014 or classified as held for sale as of June 30, 2014 are included in continuing operations on the Company’s consolidated statements of operations. For more information, see Note 2, “Summary of Significant Accounting Policies — Recently Issued Accounting Standards Update.”
	The following table summarizes certain revenue and expenses for the Company’s real estate properties that were sold or were held for sale during the three and six months ended June 30, 2014 and 2013, which were included in continuing operations (in thousands):
			Three Months Ended June 30,							Six Months Ended June 30,
			2014				2013			2014			2013
	Revenues
	Rental income		$	23,771			$	26,378		$	50,280		$	52,660
	Tenant reimbursements		11,207				11,072			22,782			21,842
	Other operating income		491				528			1,043			1,083
	Total revenues		35,469				37,978			74,105			75,585
	Expenses
	Operating, maintenance, and management		6,785				6,408			14,358			13,086
	Real estate taxes and insurance		6,564				7,142			13,190			13,360
	Asset management fees to affiliate		2,395				2,451			4,839			4,871
	General and administrative expenses		365				2			424			8
	Depreciation and amortization		452				12,485			11,442			24,918
	Interest expense		7,831				6,822			15,198			13,666
	Impairment charge on real estate		—				—			1,075			—
	Total expenses		$	24,392			$	35,310		$	60,526		$	69,909
	During the six months ended June 30, 2014, the Company recorded an impairment charge of $1.1 million related to a real estate property that was sold. The impairment charge represents the difference between the carrying value of the real estate and the fair value of the real estate (based on the sales price), less costs to sell.
	The following summary presents the major components of assets and liabilities related to real estate held for sale as of June 30, 2014 and December 31, 2013 (in thousands):
		June 30, 2014				December 31, 2013
	Assets related to real estate held for sale
	Total real estate, at cost and net of impairment charge	$	1,030,619			$	1,248,490
	Accumulated depreciation and amortization	(123,665		)		(144,574		)
	Real estate held for sale, net	906,954				1,103,916
	Other assets	62,405				77,886
	Total assets related to real estate held for sale	$	969,359			$	1,181,802
	Liabilities related to real estate held for sale
	Notes payable	581,568				673,163
	Other liabilities	2,998				5,040
	Total liabilities related to real estate held for sale	$	584,566			$	678,203
	As of June 30, 2014, the following property held for sale represented more than 10% of the Company’s total assets:
	Property		Location		Rentable			Total			Percentage		Annualized Base Rent		Average Annualized Base Rent per sq. ft.		Occupancy
					Square			Real Estate, Net			of Total		(in thousands) (2)
					Feet			(in thousands)			Assets
	300 N. LaSalle Building (1)		Chicago, IL		1,302,901			$	546,181		19.7	%	$	45,366	$	35.02	99.4	%
	_____________________
	(1) Subsequent to June 30, 2014, the Company completed the sale of this property. See Note 15 “Subsequent Events — Disposition of Real Estate Properties Subsequent to June 30, 2014 — 300 N. LaSalle Building.”
	(2) Annualized base rent represents annualized contractual base rental income as of June 30, 2014, adjusted to straight-line any contractual tenant concessions (including free rent), rent increases and rent decreases from the lease’s inception through the balance of the lease term.

NOTES_PAYABLE

NOTES PAYABLE	6 Months Ended
	Jun. 30, 2014
Notes Payable [Abstract]	'
NOTES PAYABLE	'
	NOTES PAYABLE
	As of June 30, 2014 and December 31, 2013, the Company’s notes payable, including notes payable related to real estate held for sale, consisted of the following (dollars in thousands):
		Principal as of June 30,		Principal as of December 31,		Contractual Interest Rate as of	Effective Interest Rate as of	Payment Type	Maturity Date (2)
		2014		2013		June 30, 2014(1)	June 30,
							2014 (1)
	Amended and Restated Portfolio Revolving Loan Facility (3)	$	92,376	$	105,000	One-month LIBOR + 1.80% (3)	3.10%	Interest Only	6/21/17
	300 N. LaSalle Building Mortgage Loan (4)	345,100		348,061		4.25%	4.30%	(4)	8/1/15
	Union Bank Plaza Mortgage Loan (5)	105,000		105,000		One-month LIBOR + 1.75%	3.50%	Interest Only	9/15/15
	Emerald View at Vista Center Mortgage Loan	19,800		19,800		One-month LIBOR + 2.25%	4.60%	Interest Only	1/1/16
	Portfolio Mortgage Loan #1 (6)	319,485		341,544		One-month LIBOR + 2.15%	3.10%	Interest Only	1/27/16
	601 Tower Mortgage Loan (7)	—		16,320		(7)	(7)	Interest Only	6/3/15
	CityPlace Tower Mortgage Loan	71,000		71,000		3.59%	3.60%	Interest Only	8/1/15
	Fountainhead Plaza Mortgage Loan	80,000		80,000		One-month LIBOR + 1.90%	2.90%	Interest Only	12/1/15
	Portfolio Mortgage Loan #2 (8)	—		75,628		One-month LIBOR + 2.75%	(8)	Interest Only	1/1/16
	Portfolio Mortgage Loan #3 (9)	107,640		141,000		One-month LIBOR +	2.40%	Interest Only	3/1/16
						1.75% - 1.85%
	Corporate Technology Centre Mortgage Loan (10)	140,000		140,000		3.50%	3.50%	(10)	4/1/20
	300-600 Campus Drive Revolving Loan (11)	78,000		78,000		One-month LIBOR + 2.05% (11)	2.90%	Interest Only	8/1/16
		$	1,358,401	$	1,521,353
	_____________________
	(1) Contractual interest rate represents the interest rate in effect under the loan as of June 30, 2014. Effective interest rate is calculated as the actual interest rate in effect as of June 30, 2014 (consisting of the contractual interest rate and the effect of interest rate swaps and contractual floor rates, if applicable), using interest rate indices as of June 30, 2014, where applicable. For further information regarding the Company’s derivative instruments, see Note 10, “Derivative Instruments.”
	(2) Represents the initial maturity date or the maturity date as extended as of June 30, 2014; subject to certain conditions, the maturity dates of certain loans may be extended beyond the maturity date shown.
	(3) On June 4, 2014, in connection with the sale of Mountain View Corporate Center, the borrowing capacity under the Amended and Restated Portfolio Revolving Loan Facility was reduced from $145.0 million to $128.3 million. As of June 30, 2014, the Amended and Restated Portfolio Revolving Loan Facility was secured by 350 E. Plumeria Building, Pierre Laclede Center and One Main Place. As of June 30, 2014, the $92.4 million non-revolving portion had been funded, and the $35.9 million revolving portion remained available for future disbursements, subject to certain terms and conditions contained in the loan documents.
	(4) Monthly payments included principal and interest with principal payments calculated using an amortization schedule of 30 years for the balance of the loan term. On July 7, 2014, in connection with the disposition of the 300 N. LaSalle Building, the Company repaid the entire $344.6 million principal balance and all other sums due under this loan, including a repayment penalty of $13.7 million. See “– Subsequent Events – 300 N. LaSalle Building Disposition.”
	(5) On September 15, 2010, in connection with the acquisition of the Union Bank Plaza, the Company entered into a five-year mortgage loan for borrowings of up to $119.3 million secured by the Union Bank Plaza. As of June 30, 2014, $105.0 million had been disbursed to the Company with the remaining loan balance of $14.3 million available for future disbursements, subject to certain conditions set forth in the loan agreement.
	(6) As of June 30, 2014, the Portfolio Mortgage Loan #1 was secured by Horizon Tech Center, Crescent VIII, National City Tower, Granite Tower, Gateway Corporate Center, I-81 Industrial Portfolio, Two Westlake Park and Torrey Reserve West. On July 10, 2014, in connection with the disposition of Torrey Reserve West, the Company repaid $16.8 million of principal due under this loan and Torrey Reserve West was released as security from Portfolio Mortgage Loan #1. On July 25, 2014, in connection with the disposition of Two Westlake Park, the Company repaid $53.1 million of principal due under this loan and Two Westlake Park was released as security from Portfolio Mortgage Loan #1. See “– Subsequent Events – Dispositions of Real Estate Properties Subsequent to June 30, 2014 – Torrey Reserve West” and “— Two Westlake Park.”
	(7) On June 11, 2014 in connection with the disposition of 601 Tower at Carlson Center, the Company paid off the outstanding principal balance due under this loan.
	(8) On June 9, 2014, in connection with the payoff of the Pappas Commerce First Mortgage Loan, the Company repaid the outstanding principal balance due under Portfolio Mortgage Loan #2.
	(9) On March 6, 2013, the Company entered into a three-year senior secured credit facility for borrowings of up to $235.0 million, of which $141.0 million was non-revolving debt and $94.0 million was revolving debt. On June 27, 2014, in connection with the sale of Metropolitan Center, the borrowing capacity under Portfolio Mortgage Loan #3 was reduced to $179.4 million, of which $107.6 million is non-revolving debt and $71.8 million is revolving debt. As of June 30, 2014, the principal balance consisted of the $107.6 million non-revolving portion. The revolving portion of $71.8 million remains available for future disbursements, subject to certain terms and conditions contained in the loan documents. As of June 30, 2014, the Portfolio Mortgage Loan #3 was secured by the 100 & 200 Campus Drive Buildings and Willow Oaks Corporate Center.
	(10) Monthly payments are initially interest-only. Beginning on May 1, 2017, monthly payments include principal and interest with principal payments calculated using an amortization schedule of 30 years for the balance of the loan term, with the remaining principal balance, all accrued and unpaid interest and any other amounts due at maturity.
	(11) On July 10, 2013, the Company entered into a three-year senior secured credit facility for borrowings of up to $120.0 million, of which $95.0 million is non-revolving debt and $25.0 million is revolving debt. As of June 30, 2014, the principal balance consisted of $78.0 million of the non-revolving portion. The remaining non-revolving portion of $17.0 million and the revolving portion of $25.0 million remain available for future disbursements, subject to certain terms and conditions contained in the loan documents.
	As of June 30, 2014 and December 31, 2013, the Company’s deferred financing costs were $4.2 million and $5.4 million, respectively, net of amortization, and are included in deferred financing costs, prepaid expenses and other assets on the accompanying consolidated balance sheets.
	During the three and six months ended June 30, 2014, the Company incurred $15.2 million and $29.8 million of interest expense, respectively. During the three and six months ended June 30, 2013, the Company incurred $16.2 million and $31.5 million of interest expense, respectively. As of June 30, 2014 and December 31, 2013, $3.9 million and $4.5 million, respectively, of interest expense were payable. Included in interest expense for the three and six months ended June 30, 2014 were $1.9 million and $2.8 million of amortization of deferred financing costs, respectively. Included in interest expense for the three and six months ended June 30, 2013 were $0.8 million and $1.6 million of amortization of deferred financing costs, respectively. Interest expense incurred as a result of the Company’s interest rate swap agreements were $2.3 million and $4.6 million for the three and six months ended June 30, 2014, respectively. Interest expense incurred as a result of the Company’s interest rate swap agreements were $2.5 million and $4.9 million for the three and six months ended June 30, 2013, respectively.
	The following is a schedule of maturities, including principal amortization payments, for all notes payable outstanding as of June 30, 2014 (in thousands):
	July 1, 2014 through December 31, 2014	$	3,024
	2015	598,076
	2016	524,924
	2017	94,157
	2018	2,750
	Thereafter	135,470
		$	1,358,401
	Certain of the Company’s notes payable contain financial debt covenants. As of June 30, 2014, the Company was in compliance with these debt covenants.

OTHER_COMPREHENSIVE_INCOME_LOS

OTHER COMPREHENSIVE INCOME (LOSS)	6 Months Ended
	Jun. 30, 2014
Equity [Abstract]	'
OTHER COMPREHENSIVE INCOME (LOSS)	'
	OTHER COMPREHENSIVE INCOME (LOSS)
	The following summarizes the Company’s other comprehensive income (loss) for the six months ended June 30, 2014 (in thousands):
		Derivative Instruments			Marketable Securities			Total
	Accumulated other comprehensive loss - December 31, 2013	$	(10,313	)	$	—		$	(10,313	)
	Unrealized gains (losses)	1,728			(67		)	1,661
	Reclassification of unrealized losses due to hedge ineffectiveness	822			—			822
	Reclassifications of realized losses	521			—			521
	Accumulated other comprehensive loss - June 30, 2014	$	(7,242	)	$	(67	)	$	(7,309	)

DERIVATIVE_INSTRUMENTS

DERIVATIVE INSTRUMENTS	6 Months Ended
	Jun. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
DERIVATIVE INSTRUMENTS	'
	DERIVATIVE INSTRUMENTS
	The Company enters into derivative instruments for risk management purposes to hedge its exposure to cash flow variability caused by changing interest rates. The primary goal of the Company’s risk management practices related to interest rate risk is to prevent changes in interest rates from adversely impacting the Company’s ability to achieve its investment return objectives. The Company does not enter into the derivatives for speculative purposes.
	The Company enters into interest rate swaps as a fixed rate payer to mitigate its exposure to rising interest rates on its variable rate notes payable. The value of interest rate swaps is primarily impacted by interest rates, market expectations about interest rates, and the remaining life of the instrument. In general, increases in interest rates, or anticipated increases in interest rates, will increase the value of the fixed rate payer position and decrease the value of the variable rate payer position. As the remaining life of the interest rate swap decreases, the value of both positions will generally move towards zero. All but one of the Company’s interest rate swaps are designated as cash flow hedges.
	The following table summarizes the notional amount and other information related to the Company’s interest rate swaps as of June 30, 2014 and December 31, 2013. The notional value is an indication of the extent of the Company’s involvement in each instrument at that time, but does not represent exposure to credit, interest rate or market risks (dollars in thousands):
		June 30, 2014		December 31, 2013				Weighted-Average		Weighted-Average Remaining Term
	Derivative Instruments	Number of Instruments	Notional Amount	Number of Instruments		Notional Amount	Reference Rate as of June 30, 2014	Fix Pay Rate		in Years
	Interest Rate Swaps (1)	11	$613,513	16		$842,150	One-month LIBOR/	1.35%		1.8
							Fixed at 0.50% - 2.39%
	_____________________
	(1) During the six months ended June 30, 2014, the Company terminated two interest rate swap agreements and paid an aggregate breakage fee of $0.2 million.
	The following table sets forth the fair value of the Company’s derivative instruments as well as their classification on the consolidated balance sheets as of June 30, 2014 and December 31, 2013 (dollars in thousands):
			June 30, 2014				31-Dec-13
	Derivative Instruments	Balance Sheet Location	Number of	Fair Value			Number of	Fair Value
			Instruments				Instruments
	Interest Rate Swaps	Deferred financing costs, prepaid expenses and other assets, at fair value	2	$	15		2	$	225
	Interest Rate Swaps	Other liabilities, at fair value	9	$	(8,120	)	14	$	(10,260	)
	The change in fair value of the effective portion of a derivative instrument that is designated as a cash flow hedge is recorded as other comprehensive income (loss) in the accompanying consolidated statements of comprehensive income (loss) and as other comprehensive income in the accompanying consolidated statements of stockholders’ equity. The Company recorded unrealized gains of $0.5 million and $1.7 million on derivative instruments designated as cash flow hedges in accumulated other comprehensive income (loss) during the three and six months ended June 30, 2014, respectively. The Company recorded unrealized gains of $3.2 million and $4.5 million on derivative instruments designated as cash flow hedges in accumulated other comprehensive income (loss) during the three and six months ended June 30, 2013, respectively. Amounts in other comprehensive income (loss) will be reclassified into earnings in the periods in which earnings are affected by the hedged cash flow.  As a result of utilizing derivative instruments designated as cash flow hedges to hedge its variable rate notes payable, the Company recognized an additional $2.3 million and $4.6 million of interest expense related to the effective portion of cash flow hedges during the three and six months ended June 30, 2014, respectively, and $2.5 million and $4.9 million of interest expense related to the effective portion of cash flow hedges during the three and six months ended June 30, 2013, respectively. The change in fair value of the ineffective portion is recognized directly in earnings. During the three and six months ended June 30, 2014, the Company recorded $0.1 million and $0.9 million of unrealized swap losses as interest expense resulting from hedge ineffectiveness primarily due to the anticipated early repayment of debt in connection with asset sales and the Company dedesignating the hedge due to certain hedged forecasted transactions no longer being probable beyond the projected asset sale date. During the three and six months ended June 30, 2013, there was no ineffective portion related to the change in fair value of the cash flow hedges. During the next 12 months, the Company expects to recognize additional interest expense related to derivative instruments designated as cash flow hedges. The present value of the additional interest expense totaled $6.4 million as of June 30, 2014 and was included in accumulated other comprehensive income (loss).
	During the three and six months ended June 30, 2014, the Company recognized $0.4 million and $0.5 million of interest expense, respectively, related to swap terminations. During the three and six months ended June 30, 2013, the Company recognized $0.3 million and $0.4 million of interest expense, respectively, related to swap terminations. With respect to swap agreements that were terminated for which it remains probable that the original hedged forecasted transactions (i.e., LIBOR-based debt service payments) will occur, the loss related to the termination of these swap agreements is included in accumulated other comprehensive income (loss) and will be reclassified into earnings over the period of the original forecasted hedged transaction.

FAIR_VALUE_DISCLOSURES

FAIR VALUE DISCLOSURES	6 Months Ended
	Jun. 30, 2014
Fair Value Disclosures [Abstract]	'
FAIR VALUE DISCLOSURES	'
	FAIR VALUE DISCLOSURES
	Under GAAP, the Company is required to measure certain financial instruments at fair value on a recurring basis. In addition, the Company is required to measure other financial instruments and balances at fair value on a non-recurring basis (e.g., carrying value of impaired real estate loans receivable and long-lived assets). Fair value is defined as the price that would be received upon the sale of an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The GAAP fair value framework uses a three-tiered approach. Fair value measurements are classified and disclosed in one of the following three categories:
	•	Level 1: unadjusted quoted prices in active markets that are accessible at the measurement date for identical assets or liabilities;
	•	Level 2: quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model‑derived valuations in which significant inputs and significant value drivers are observable in active markets; and
	•	Level 3: prices or valuation techniques where little or no market data is available that requires inputs that are both significant to the fair value measurement and unobservable.
	The fair value for certain financial instruments is derived using a combination of market quotes, pricing models and other valuation techniques that involve significant management judgment. The price transparency of financial instruments is a key determinant of the degree of judgment involved in determining the fair value of the Company’s financial instruments. Financial instruments for which actively quoted prices or pricing parameters are available and for which markets contain orderly transactions will generally have a higher degree of price transparency than financial instruments for which markets are inactive or consist of non-orderly trades. The Company evaluates several factors when determining if a market is inactive or when market transactions are not orderly. The following is a summary of the methods and assumptions used by management in estimating the fair value of each class of assets and liabilities for which it is practicable to estimate the fair value:
	Cash and cash equivalents, rent and other receivables, and accounts payable and accrued liabilities: These balances approximate their fair values due to the short maturities of these items.
	Real estate loans receivable: The Company’s real estate loans receivable are presented in the accompanying consolidated balance sheets at their amortized cost net of recorded loan loss reserves and not at fair value. The fair values of real estate loans receivable were estimated using an internal valuation model that considered the expected cash flows for the loans, underlying collateral values (for collateral-dependent loans) and estimated yield requirements of institutional investors for loans with similar characteristics, including remaining loan term, loan-to-value, type of collateral and other credit enhancements. The Company classifies these inputs as Level 3 inputs.
	Marketable securities: The Company’s marketable securities are classified as available for sale. These securities are presented at fair value on the accompanying consolidated balance sheets with unrealized gains and losses reported as a component of accumulated other comprehensive income (loss). The fair values of the marketable securities were determined using quoted prices available in an active market for identical investments as of the reporting date. As such, the Company classifies these inputs as Level 1 inputs.
	Derivative instruments: The Company’s derivative instruments are presented at fair value on the accompanying consolidated balance sheets. The valuation of these instruments is determined using a proprietary model that utilizes observable inputs. As such, the Company classifies these inputs as Level 2 inputs. The proprietary model uses the contractual terms of the derivatives, including the period to maturity, as well as observable market-based inputs, including interest rate curves and volatility. The fair values of interest rate swaps are estimated using the market standard methodology of netting the discounted fixed cash payments and the discounted expected variable cash receipts. The variable cash receipts are based on an expectation of interest rates (forward curves) derived from observable market interest rate curves. In addition, credit valuation adjustments, which consider the impact of any credit risks to the contracts, are incorporated in the fair values to account for potential nonperformance risk.
	Notes payable: The fair value of the Company’s notes payable is estimated using a discounted cash flow analysis based on management’s estimates of current market interest rates for instruments with similar characteristics, including remaining loan term, loan-to-value ratio, type of collateral and other credit enhancements. Additionally, when determining the fair value of liabilities in circumstances in which a quoted price in an active market for an identical liability is not available, the Company measures fair value using (i) a valuation technique that uses the quoted price of the identical liability when traded as an asset or quoted prices for similar liabilities when traded as assets or (ii) another valuation technique that is consistent with the principles of fair value measurement, such as the income approach or the market approach. The Company classifies these inputs as Level 3 inputs.
	The following were the face values, carrying amounts and fair values of the Company’s real estate loans receivable and notes payable as of June 30, 2014 and December 31, 2013, which carrying amounts do not approximate the fair values (in thousands):
			June 30, 2014								December 31, 2013
			Face Value			Carrying		Fair Value			Face Value		Carrying		Fair Value
						Amount							Amount
	Financial assets:
	Real estate loans receivable		$	73,152		$	73,191	$	73,820		$	184,900	$	184,828	$	190,485
	Financial liabilities:
	Notes payable		$	1,358,401		$	1,358,401	$	1,376,631		$	1,521,353	$	1,521,353	$	1,526,075
	Disclosure of the fair values of financial instruments is based on pertinent information available to the Company as of the period end and requires a significant amount of judgment. Despite increased capital market and credit market activity, transaction volume for certain financial instruments remains relatively low. This has made the estimation of fair values difficult and, therefore, both the actual results and the Company’s estimate of value at a future date could be materially different.
	During the six months ended June 30, 2014, the Company measured the following assets and liabilities at fair value (in thousands):
						Fair Value Measurements Using
			Total			Quoted Prices in		Significant Other			Significant
						Active Markets		Observable			Unobservable
						for Identical Assets		Inputs (Level 2)			Inputs (Level 3)
						(Level 1)
	Recurring Basis:
	Marketable securities		$	172,935		$	172,935	$	—		$	—
	Asset derivatives		15			—		15			—
	Liability derivatives		(8,120		)	—		(8,120		)	—

RELATED_PARTY_TRANSACTIONS

RELATED PARTY TRANSACTIONS	6 Months Ended
	Jun. 30, 2014
Related Party Transactions [Abstract]	'
RELATED PARTY TRANSACTIONS	'
	RELATED PARTY TRANSACTIONS
	The Company has entered into the Advisory Agreement with the Advisor and the Dealer Manager Agreement with the Dealer Manager. These agreements entitled the Advisor and/or the Dealer Manager to specified fees upon the provision of certain services with regard to the Offering and reimbursement of organization and offering costs incurred by the Advisor and the Dealer Manger on behalf of the Company. These agreements also entitle the Advisor to specified fees upon the provision of certain services with regard to the investment of funds in real estate and real estate-related investments, the management of those investments, among other services, and the disposition of investments, as well as reimbursement of certain costs incurred by the Advisor in providing services to the Company. In addition, the Advisor is entitled to certain other fees, including an incentive fee upon achieving certain performance goals, as detailed in the Advisory Agreement. The Company has also entered into a fee reimbursement agreement with the Dealer Manager pursuant to which the Company agreed to reimburse the Dealer Manager for certain fees and expenses it incurs for administering the Company’s participation in the Depository Trust & Clearing Corporation Alternative Investment Product Platform with respect to certain accounts of the Company’s investors serviced through the platform. The Advisor and Dealer Manager also serve as the advisor and dealer manager, respectively, for KBS Real Estate Investment Trust, Inc., KBS Real Estate Investment Trust III, Inc., KBS Strategic Opportunity REIT, Inc., KBS Legacy Partners Apartment REIT, Inc. and KBS Strategic Opportunity REIT II, Inc.
	On January 6, 2014, the Company, together with KBS Real Estate Investment Trust, Inc., KBS Real Estate Investment Trust III, Inc., KBS Strategic Opportunity REIT, Inc., KBS Legacy Partners Apartment REIT, Inc., KBS Strategic Opportunity REIT II, Inc., the Dealer Manager, the Advisor and other KBS-affiliated entities, entered into an errors and omissions and directors and officers liability insurance program where the lower tiers of such insurance coverage are shared. The cost of these lower tiers is allocated by the Advisor and its insurance broker among each of the various entities covered by the program, and is billed directly to each entity. The allocation of these shared coverage costs is proportionate to the pricing by the insurance marketplace for the first tiers of directors and officers liability coverage purchased individually by each REIT. The Advisor’s and the Dealer Manager’s portion of the shared lower tiers’ cost is proportionate to the respective entities’ prior cost for the errors and omissions insurance.
	During the six months ended June 30, 2014 and 2013, no other business transactions occurred between the Company and KBS Real Estate Investment Trust, Inc., KBS Real Estate Investment Trust III, Inc., KBS Strategic Opportunity REIT, Inc., KBS Legacy Partners Apartment REIT, Inc. and KBS Strategic Opportunity REIT II, Inc.
	Pursuant to the terms of these agreements, summarized below are the related-party costs incurred by the Company for the three and six months ended June 30, 2014 and 2013, respectively, and any related amounts payable as of June 30, 2014 and December 31, 2013 (in thousands):
		Incurred				Incurred				Payable as of
		Three Months Ended June 30,				Six Months Ended June 30,				June 30,		December 31,
		2014		2013		2014		2013		2014		2013
	Expensed
	Asset management fees	$	5,631	$	5,993	$	11,335	$	11,484	$	—	$	—
	Reimbursement of operating expenses (1)	37		33		73		58		—		—
	Acquisition fees	—		—		—		1,797		—		—
	Disposition fees (2)	2,563		—		2,563		—		—		—
		$	8,231	$	6,026	$	13,971	$	13,339	$	—	$	—
	_____________________
	(1) The Advisor may seek reimbursement for certain employee costs under the Advisory Agreement. The Company reimburses the Advisor for the Company’s allocable portion of the salaries, benefits and overhead of internal audit department personnel providing services to the Company. These amounts totaled $37,000 and $33,000 for the three months ended June 30, 2014 and 2013, respectively, and $73,000 and $58,000 for the six months ended June 30, 2014 and 2013, respectively, and were the only type of employee costs reimbursed under the Advisory Agreement for the three and six months ended June 30, 2014 and 2013. The Company will not reimburse for employee costs in connection with services for which the Advisor earns acquisition, origination or disposition fees (other than reimbursement of travel and communication expenses) or for the salaries or benefits the Advisor or its affiliates may pay to the Company’s executive officers.
	(2) Disposition fees with respect to real estate sold are included in the gain on sales of real estate in the accompanying consolidated statements of operations.
	On July 29, 2010, the Company, through an indirect wholly owned subsidiary, KBSII 300 North LaSalle, LLC (the "Owner"), purchased the 300 N. LaSalle Building. On May 16, 2014, after a competitive bidding process overseen by HFF, Inc., an unaffiliated independent third party, the Owner entered into a purchase and sale agreement and escrow instructions for the sale of the 300 N. LaSalle Building to an affiliate of the Irvine Company, 300 North LaSalle LLC (the “Purchaser”). Donald Bren is the chairman and owner of the Purchaser and the Irvine Company and the brother of Peter Bren (one of the Company’s executive officers and sponsors). On July 7, 2014, the Company completed the sale of the 300 N. LaSalle Building to the Purchaser for $850.0 million. See Note 15, “Subsequent Events - 300 N. LaSalle Building.”

SEGMENT_INFORMATION

SEGMENT INFORMATION	6 Months Ended
	Jun. 30, 2014
Segment Reporting [Abstract]	'
SEGMENT INFORMATION	'
	SEGMENT INFORMATION
	The Company presently operates in two reportable business segments based on its investment types: real estate and real estate-related. Under the real estate segment, the Company has invested in office, office/flex and industrial properties. Under the real estate-related segment, the Company has invested in or originated mortgage loans and an A-Note. All revenues earned from the Company’s two reporting segments were from external customers and there were no intersegment sales or transfers. The Company does not allocate corporate-level accounts to its reporting segments. Corporate-level accounts include corporate general and administrative expenses, non-operating interest income, non-operating interest expense and other corporate-level expenses. The accounting policies of the segments are consistent with those described in Note 2, “Summary of Significant Accounting Policies.”
	The Company evaluates the performance of its segments based upon net operating income (“NOI”), which is a non-GAAP supplemental financial measure. The Company defines NOI for its real estate segment as operating revenues (rental income, tenant reimbursements and other operating income) less property and related expenses (property operating expenses, real estate taxes, insurance, asset management fees and provision for bad debt) less interest expense. The Company defines NOI for its real estate-related segment as interest income less loan servicing costs, asset management fees and interest expense. NOI excludes certain items that are not considered to be controllable in connection with the management of an asset such as non-property income and expenses, depreciation and amortization, and corporate general and administrative expenses. The Company uses NOI to evaluate the operating performance of the Company’s real estate and real estate-related investments and to make decisions about resource allocations. The Company believes that net income is the GAAP measure that is most directly comparable to NOI; however, NOI should not be considered as an alternative to net income as the primary indicator of operating performance, as it excludes the items described above. Additionally, NOI as defined above may not be comparable to other REITs or companies as their definitions of NOI may differ from the Company’s definition.
	The following tables summarize total revenues and NOI for each reportable segment for the three and six months ended June 30, 2014 and 2013 and total assets and total liabilities for each reportable segment as of June 30, 2014 and December 31, 2013 (in thousands):
		For the Three Months Ended June 30,						For the Six Months Ended June 30,
		2014			2013			2014			2013
	Revenues:
	Real estate segment (1)	$	80,641		$	84,802		$	165,132		$	163,427
	Real estate-related segment	1,986			8,410			9,950			16,672
	Total segment revenues	82,627			93,212			175,082			180,099
	Corporate-level	89			—			89			—
	Total revenues	$	82,716		$	93,212		$	175,171		$	180,099
	Interest Expense:
	Real estate segment (1)	$	14,626		$	14,890		$	28,855		$	28,839
	Real estate-related segment	587			1,141			993			2,272
	Total segment interest expense	15,213			16,031			29,848			31,111
	Corporate-level	—			167			—			380
	Total interest expense	$	15,213		$	16,198		$	29,848		$	31,491
	NOI:
	Real estate segment (1)	$	31,783		$	35,031		$	66,141		$	67,709
	Real estate-related segment	1,201			6,715			8,444			13,300
	Total segment NOI	32,984			41,746			74,585			81,009
	Corporate-level	89			—			89			—
	Total NOI	$	33,073		$	41,746		$	74,674		$	81,009
		As of June 30,			As of December 31,
		2014			2013
	Assets:
	Real estate segment	$	1,408,846		$	1,440,578
	Real estate-related segment	73,697			229,457
	Total segment assets	1,482,543			1,670,035
	Real estate held for sale	969,359			1,181,802
	Corporate-level (2)	324,379			102,463
	Total assets	$	2,776,281		$	2,954,300
	Liabilities:
	Real estate segment	$	844,406		$	848,854
	Real estate-related segment	13			75,820
	Total segment liabilities	844,419			924,674
	Real estate held for sale	584,566			678,203
	Corporate-level (3)	11,311			11,379
	Total liabilities	$	1,440,296		$	1,614,256
	_____________________
	(1) Amounts include properties sold and properties held for sale. See Note 7, “Real Estate Held for Sale” for more information.
	(2) Total corporate-level assets consisted primarily of marketable securities and cash and cash equivalents of approximately $323.9 million as of June 30, 2014 and of cash and cash equivalents of approximately $102.2 million as of December 31, 2013.
	(3) As of June 30, 2014 and December 31, 2013, corporate-level liabilities consisted primarily of distributions payable.
	The following table reconciles the Company’s net income to its NOI for the three and six months ended June 30, 2014 and 2013 (in thousands):
		For the Three Months Ended June 30,						For the Six Months Ended June 30,
		2014			2013			2014			2013
	Net income	$	59,719		$	9,432		$	70,146		$	15,864
	Gain on sales of real estate, net	(46,647		)	—			(46,647		)	—
	Other interest income	(21		)	(11		)	(54		)	(15		)
	Real estate acquisition fees to affiliates	—			—			—			1,797
	Real estate acquisition fees and expenses	—			7			—			623
	General and administrative expenses	1,513			1,222			2,802			2,337
	Depreciation and amortization	18,509			30,929			47,352			60,023
	Impairment charge on real estate	—			—			1,075			—
	Corporate-level interest expense	—			167			—			380
	NOI	$	33,073		$	41,746		$	74,674		$	81,009

COMMITMENTS_AND_CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	6 Months Ended
	Jun. 30, 2014
Commitments and Contingencies Disclosure [Abstract]	'
COMMITMENTS AND CONTINGENCIES	'
	COMMITMENTS AND CONTINGENCIES
	Economic Dependency
	The Company is dependent on the Advisor for certain services that are essential to the Company, including: the disposition of real estate and real estate-related investments; management of the daily operations of the Company’s real estate and real estate-related investment portfolio; and other general and administrative responsibilities. In the event the Advisor is unable to provide any of these services, the Company will be required to obtain such services from other sources.
	Environmental
	As an owner of real estate, the Company is subject to various environmental laws of federal, state and local governments. Compliance with existing environmental laws is not expected to have a material adverse effect on the Company’s financial condition and results of operations as of June 30, 2014.
	Legal Matters
	From time to time, the Company is party to legal proceedings that arise in the ordinary course of its business. Management is not aware of any legal proceedings of which the outcome is probable or reasonably possible to have a material adverse effect on the Company’s results of operations or financial condition, which would require accrual or disclosure of the contingency and possible range of loss. Additionally, the Company has not recorded any loss contingencies related to legal proceedings in which the potential loss is deemed to be remote.

SUBSEQUENT_EVENTS

SUBSEQUENT EVENTS	6 Months Ended
	Jun. 30, 2014
Subsequent Events [Abstract]	'
SUBSEQUENT EVENTS	'
	SUBSEQUENT EVENTS
	The Company evaluates subsequent events up until the date the consolidated financial statements are issued.
	Distributions Paid
	On July 1, 2014, the Company paid distributions of $10.2 million, which related to distributions declared for daily record dates for each day in the period from June 1, 2014 through June 30, 2014. On August 1, 2014, the Company paid distributions of $10.5 million, which related to distributions declared for daily record dates for each day in the period from July 1, 2014 through July 31, 2014.
	Distributions Declared
	On July 8, 2014, the Company’s board of directors declared distributions based on daily record dates for the period from August 1, 2014 through August 31, 2014, which the Company expects to pay in September 2014. Distributions for this period will be calculated based on stockholders of record each day during this period at a rate of $0.00178082 per share per day and equal a daily amount that, if paid each day for a 365-day period, would equal a 6.5% annualized rate based on a purchase price of $10.00 per share in the Company’s now terminated primary initial public offering or a 6.3% annualized rate based on the Company’s December 18, 2013 estimated value per share of $10.29.
	On July 8, 2014, the Company’s board of directors declared a distribution in the amount of $3.75 per share of common stock to stockholders of record as of the close of business on September 15, 2014. Also, on August 5, 2014, the Company’s board of directors declared a distribution in the amount of $0.30 per share of common stock to stockholders of record as of the close of business on September 15, 2014. The Company expects to pay these distributions, for an aggregate amount of $4.05 per share of common stock, on or about September 23, 2014. These distributions will be funded from the Company’s proceeds from the disposition of real estate properties between May 2014 and July 2014 as well as cash on hand resulting from the repayment or sale of four real estate loans receivable during 2013 and 2014.
	Dispositions of Real Estate Properties Subsequent to June 30, 2014
	300 N. LaSalle Building
	On July 29, 2010, the Company, through an indirect wholly owned subsidiary, purchased a 60-story office building containing 1,302,901 rentable square feet located on approximately 1.2 acres of land in Chicago, Illinois (the “300 N. LaSalle Building”). On May 16, 2014, after a competitive bidding process overseen by HFF, Inc., an unaffiliated independent third party, the Company entered into a purchase and sale agreement and escrow instructions for the sale of the 300 N. LaSalle Building to an affiliate of the Irvine Company, 300 North LaSalle LLC (the “Purchaser”). Donald Bren is the chairman and owner of the Purchaser and the Irvine Company and the brother of Peter Bren (one of the Company’s executive officers and sponsors). On July 7, 2014, the Company completed the sale of the 300 N. LaSalle Building, which had a net book value of $590.7 million as of the date of sale, to the Purchaser for $850.0 million. In connection with the disposition of the 300 N. LaSalle Building, the Company repaid the entire $344.6 million principal balance and all other sums due under a mortgage loan secured by the 300 N. LaSalle Building, including a repayment penalty of $13.7 million.
	Torrey Reserve West
	On September 9, 2010, the Company, through an indirect wholly owned subsidiary, purchased three two-story office buildings containing 118,030 rentable square feet located on approximately 7.1 acres of land in San Diego, California (“Torrey Reserve West”). On July 10, 2014, the Company sold Torrey Reserve West, which had a net book value of $21.2 million as of the date of sale, for $39.2 million. The purchaser is not affiliated with the Company or its advisor. In connection with the disposition of Torrey Reserve West, the Company repaid $16.8 million of the principal due under a portfolio mortgage loan partially secured by Torrey Reserve West.
	Two Westlake Park
	On February 25, 2011, the Company, through an indirect wholly owned subsidiary, purchased a 17-story office building containing 388,142 rentable square feet located on approximately 5.4 acres of land in Houston, Texas (“Two Westlake Park”). Subsequently, the Company renovated Two Westlake Park and added 67,334 rentable square feet to the property. On July 25, 2014, the Company sold Two Westlake Park, which had a net book value of $81.9 million as of the date of sale, for $120.0 million. The purchaser is not affiliated with the Company or its advisor. In connection with the disposition of Two Westlake Park, the Company repaid $53.1 million of the principal due under a portfolio mortgage loan partially secured by Two Westlake Park.

SUMMARY_OF_SIGNIFICANT_ACCOUNT1

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	6 Months Ended
	Jun. 30, 2014
Accounting Policies [Abstract]	'
Principles of Consolidation and Basis of Presentation	'
	The accompanying unaudited consolidated financial statements and condensed notes thereto have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information as contained within the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) and the rules and regulations of the SEC, including the instructions to Form 10-Q and Article 10 of Regulation S-X.  Accordingly, the unaudited consolidated financial statements do not include all of the information and footnotes required by GAAP for audited financial statements.  In the opinion of management, the financial statements for the unaudited interim periods presented include all adjustments, which are of a normal and recurring nature, necessary for a fair and consistent presentation of the results for such periods.  Operating results for the six months ended June 30, 2014 are not necessarily indicative of the results that may be expected for the year ending December 31, 2014.
	The consolidated financial statements include the accounts of the Company, KBS REIT Holdings II, the Operating Partnership, and their direct and indirect wholly owned subsidiaries.  All significant intercompany balances and transactions are eliminated in consolidation.
Use of Estimates	'
	The preparation of the consolidated financial statements and condensed notes thereto in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could materially differ from those estimates.
Reclassifications	'
	Certain amounts in the Company’s prior period consolidated financial statements have been reclassified to conform to the current period presentation.  These reclassifications have not changed the results of operations of prior periods.  During the six months ended June 30, 2014, the Company sold three office properties, one industrial property and a leasehold interest in one industrial property and classified six office properties as held for sale.  As a result, certain assets and liabilities were reclassified to held for sale on the consolidated balance sheets for all periods presented.
Marketable Securities	'
	The Company classifies its investments in marketable securities as available-for-sale, since the Company may sell them prior to their maturity but does not hold them principally for the purpose of making frequent investments and sales with the objective of generating profits on short-term differences in price. These investments are carried at estimated fair value, with unrealized gains and losses reported in accumulated other comprehensive income (loss). Estimated fair values are generally based on quoted market prices, when available, or on estimates provided by independent pricing sources or dealers who make markets in such securities. In certain circumstances, such as when the market for the securities becomes inactive, the Company may determine it is appropriate to perform an internal valuation of the securities. Upon the sale of a security, the previously recognized unrealized gain (loss) is reversed out of accumulated other comprehensive income (loss) and the actual realized gain (loss) is recognized in earnings.
	On a quarterly basis, the Company evaluates its marketable securities for other-than-temporary impairment. The Company reviews the projected future cash flows from these securities for changes in assumptions due to prepayments, credit loss experience and other factors. If, based on the Company’s quarterly estimate of cash flows, there has been an adverse change in the estimated cash flows from the cash flows previously estimated, the present value of the revised cash flows is less than the present value previously estimated, and the fair value of the securities is less than their amortized cost basis, an other-than-temporary impairment is deemed to have occurred.
	The Company recognizes interest income on marketable securities that are beneficial interests in securitized financial assets and are rated “AA” and above on an accrual basis according to the contractual terms of the securities. Discounts or premiums are amortized to interest income over the life of the investment using the interest method.
	The Company recognizes interest income on marketable securities that are beneficial interests in securitized financial assets that are rated below “AA” using the effective yield method, which requires the Company to periodically project estimated cash flows related to these securities and recognize interest income at an interest rate equivalent to the estimated yield on the security, as calculated using the security’s estimated cash flows and amortized cost basis, or reference amount. Changes in the estimated cash flows are recognized through an adjustment to the yield on the security on a prospective basis. Projecting cash flows for these types of securities requires significant judgment, which may have a significant impact on the timing of revenue recognized on these investments.
	The Company is required to distinguish between other-than-temporary impairments related to credit and other-than-temporary impairments related to other factors (e.g., market fluctuations) on its debt securities that it does not intend to sell and where it is not likely that the Company will be required to sell the security prior to the anticipated recovery of its amortized cost basis. The Company calculates the credit component of the other-than-temporary impairment as the difference between the amortized cost basis of the security and the present value of its estimated cash flows discounted at the yield used to recognize interest income. The credit component will be charged to earnings and the component related to other factors is recorded to other comprehensive income (loss).
Redeemable Common Stock	'
	On May 15, 2014, the Company’s board of directors approved the amendment and restatement of the Company’s share redemption program (the “Amended Share Redemption Program”) to provide only for redemptions sought upon a stockholder’s death, “qualifying disability” or “determination of incompetence” (each as defined in the Amended Share Redemption Program, and collectively “special redemptions”). During each calendar year, such special redemptions are limited to an annual dollar amount determined by the board of directors, which may be reviewed during the year and increased or decreased upon ten business days’ notice to the Company’s stockholders. The Company may provide notice by including such information (a) in a Current Report on Form 8-K or in its annual or quarterly reports, all publicly filed with the Securities and Exchange Commission or (b) in a separate mailing to the stockholders.
	Commencing with the June 2014 redemption date, the dollar amount limitation for special redemptions for the remainder of calendar year 2014 is $10.0 million in the aggregate, as may be reviewed and adjusted from time to time by the board of directors. Based on historical redemption data, the board of directors believes that the $10.0 million redemption limitation for the remainder of calendar year 2014 will be sufficient for these special redemptions. The Amended Share Redemption Program became effective on June 18, 2014. As of June 30, 2014, the Company had $9.5 million available for special redemptions for the remainder of 2014. There were no other changes to the terms of special redemptions, and special redemptions will continue to be made at a price per share equal to the most recent estimated value per share of the Company’s common stock as of the applicable redemption date. The Company currently does not expect to make ordinary redemptions in the future.
Per Share Data	'
	Basic net income (loss) per share of common stock is calculated by dividing net income (loss) by the weighted-average number of shares of common stock issued and outstanding during such period. Diluted net income (loss) per share of common stock equals basic net income (loss) per share of common stock as there were no potentially dilutive securities outstanding during the six months ended June 30, 2014 and 2013, respectively.
	Distributions declared per common share were $0.162 and $0.322 for the three and six months ended June 30, 2014, respectively, and $0.162 and $0.376 for the three and six months ended June 30, 2013, respectively. Distributions declared per common share assumes each share was issued and outstanding each day during the three and six months ended June 30, 2014 and 2013, respectively. For each day that was a record date for distributions during the three and six months ended June 30, 2014 and 2013, distributions were calculated at a rate of $0.00178082 per share per day. Each day during the periods from January 1, 2014 through June 30, 2014 and January 1, 2013 through June 30, 2013 was a record date for distributions. Additionally, the Company’s board of directors declared a distribution in the amount of $0.05416667 per share of common stock to stockholders of record as of the close of business on February 4, 2013.
Segments	'
	The Company’s segments are based on the Company’s method of internal reporting, which classifies its operations by investment type: real estate and real estate-related. For financial data by segment, see Note 13, “Segment Information.”
Recently Issued Accounting Standards Update	'
	In April 2014, the FASB issued ASU No. 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 (“ASU No. 2014-08”).  ASU No. 2014-08 limits discontinued operations reporting to disposals of components of an entity that represents a strategic shift that has (or will have) a major effect on an entity’s operations and financial results when any of the following occurs: a) the component of an entity or group of components of an entity meets the criteria to be classified as held for sale; b) the component of an entity or group of components of an entity is disposed of by sale; and c) the component of an entity or group of components of an entity is disposed of other than by sale.  ASU No. 2014-08 also requires additional disclosures about discontinued operations.  ASU No. 2014-08 is effective for reporting periods beginning after December 15, 2014.  Early adoption is permitted, but only for disposals (or classifications as held for sale) that have not been reported in financial statements previously issued or available for issuance. The Company early adopted ASU No. 2014-08 for the reporting period beginning January 1, 2014.  As a result of the adoption of ASU No. 2014-08, results of operations for properties that are classified as held for sale in the ordinary course of business on or subsequent to January 1, 2014 would generally be included in continuing operations on the Company’s consolidated statements of operations, to the extent such disposals did not meet the criteria for classification as a discontinued operation described above. Additionally, any gain or loss on sale of real estate that does not meet the criteria for classification as a discontinued operation would be included in income from continuing operations on the consolidated statements of operations.
	In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) (“ASU No. 2014-09”). ASU No. 2014-09 requires an entity to recognize the revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods and services.  ASU No. 2014-09 supersedes the revenue requirements in Revenue Recognition (Topic 605) and most industry-specific guidance throughout the Industry Topics of the Codification.  ASU No. 2014-09 does not apply to lease contracts within the scope of Leases (Topic 840). ASU No. 2014-09 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2016, and is to be applied retrospectively, with early application not permitted.  The Company does not expect the adoption of ASU No. 2014-09 to have an impact on its financial statements.

REAL_ESTATE_HELD_FOR_INVESTMEN1

REAL ESTATE HELD FOR INVESTMENT (Tables)	6 Months Ended
	Jun. 30, 2014
Real Estate [Abstract]	'
Schedule of Real Estate Investments	'
	The following table summarizes the Company’s real estate portfolio held for investment as of June 30, 2014 and December 31, 2013 (in thousands):
			Land				Buildings and				Tenant Origination and Absorption Costs			Total Real Estate Held for Investment
							Improvements
	As of June 30, 2014:
	Office		$	204,097			$	1,126,981			$	132,182		$	1,463,260
	Industrial		7,250				62,667				12,410			82,327
	Total real estate, cost		$	211,347			$	1,189,648			$	144,592		$	1,545,587
	Accumulated depreciation and amortization		—				(160,780		)		(77,271		)	(238,051		)
	Total real estate held for investment, net		$	211,347			$	1,028,868			$	67,321		$	1,307,536
	As of December 31, 2013:
	Office		$	204,097			$	1,122,276			$	140,905		$	1,467,278
	Industrial		7,250				62,655				12,410			82,315
	Total real estate, cost		$	211,347			$	1,184,931			$	153,315		$	1,549,593
	Accumulated depreciation and amortization		—				(143,941		)		(74,308		)	(218,249		)
	Total real estate held for investment, net		$	211,347			$	1,040,990			$	79,007		$	1,331,344
Schedule of Future Minimum Rental Income for Company's Properties	'
	As of June 30, 2014, the future minimum rental income from the Company’s properties under non-cancelable operating leases was as follows (in thousands):
	July 1, 2014 through December 31, 2014	$	73,819
	2015	142,631
	2016	131,497
	2017	116,845
	2018	89,997
	Thereafter	231,537
		$	786,326
Schedules of Concentration of Risk, by Risk Factor	'
	As of June 30, 2014, the Company had over 300 tenants over a diverse range of industries and geographic areas. The Company’s highest tenant industry concentrations (greater than 10% of annualized base rent) were as follows:
	Industry		Number of Tenants		Annualized				Percentage of Annualized Base Rent
					Base Rent (1)
					(in thousands)
	Finance		42		$	32,836			21.4	%
	Computer System Design & Programming		12		25,000				16.3	%
	Legal Services		50		20,268				13.2	%
					$	78,104			50.9	%
	_____________________
	(1) Annualized base rent represents annualized contractual base rental income as of June 30, 2014, adjusted to straight-line any contractual tenant concessions (including free rent), rent increases and rent decreases from the lease’s inception through the balance of the lease term.
	As of June 30, 2014, the following property held for sale represented more than 10% of the Company’s total assets:
	Property		Location		Rentable			Total				Percentage		Annualized Base Rent			Average Annualized Base Rent per sq. ft.		Occupancy
					Square			Real Estate, Net				of Total		(in thousands) (2)
					Feet			(in thousands)				Assets
	300 N. LaSalle Building (1)		Chicago, IL		1,302,901			$	546,181			19.7	%	$	45,366		$	35.02	99.4	%
	_____________________
	(1) Subsequent to June 30, 2014, the Company completed the sale of this property. See Note 15 “Subsequent Events — Disposition of Real Estate Properties Subsequent to June 30, 2014 — 300 N. LaSalle Building.”
	(2) Annualized base rent represents annualized contractual base rental income as of June 30, 2014, adjusted to straight-line any contractual tenant concessions (including free rent), rent increases and rent decreases from the lease’s inception through the balance of the lease term.

TENANT_ORIGINATION_AND_ABSORPT1

TENANT ORIGINATION AND ABSORPTION COSTS, ABOVE-MARKET LEASE ASSETS AND BELOW-MARKET LEASE LIABILITIES (Tables)	6 Months Ended
	Jun. 30, 2014
Tenant Origination and Absorption Costs, Above-Market Lease Assets and Below-Market Lease Liabilities [Abstract]	'
Tenant Origination and Absorption Costs, Above-Market Lease Assets and Below-Market Lease Liabilities	'
	As of June 30, 2014 and December 31, 2013, the Company’s tenant origination and absorption costs, above-market lease assets and below-market lease liabilities (excluding fully amortized assets and liabilities and accumulated amortization) were as follows (in thousands):
		Tenant Origination and						Above-Market						Below-Market
		Absorption Costs						Lease Assets						Lease Liabilities
		June 30,			December 31,			June 30,			December 31,			June 30,			December 31,
		2014			2013			2014			2013			2014			2013
	Cost	$	144,592		$	153,315		$	29,222		$	29,569		$	(37,451	)	$	(39,487	)
	Accumulated Amortization	(77,271		)	(74,308		)	(12,925		)	(10,307		)	22,377			21,544
	Net Amount	$	67,321		$	79,007		$	16,297		$	19,262		$	(15,074	)	$	(17,943	)
Amortization of Tenant Origination and Absorption Costs, Above-Market Leases and Below-Market Lease Liabilities	'
	Increases (decreases) in net income as a result of amortization of the Company’s tenant origination and absorption costs, above-market lease assets and below-market lease liabilities for the three and six months ended June 30, 2014 and 2013 were as follows (in thousands):
		Tenant Origination and						Above-Market						Below-Market
		Absorption Costs						Lease Assets						Lease Liabilities
		For the Three Months Ended June 30,						For the Three Months Ended June 30,						For the Three Months Ended June 30,
		2014			2013			2014			2013			2014			2013
	Amortization	$	(6,164	)	$	(10,701	)	$	(2,702	)	$	(2,558	)	$	1,676		$	2,062
		Tenant Origination and						Above-Market						Below-Market
		Absorption Costs						Lease Assets						Lease Liabilities
		For the Six Months Ended June 30,						For the Six Months Ended June 30,						For the Six Months Ended June 30,
		2014			2013			2014			2013			2014			2013
	Amortization	$	(15,230	)	$	(20,873	)	$	(5,077	)	$	(4,750	)	$	3,545		$	3,758

REAL_ESTATE_LOANS_RECEIVABLE_T

REAL ESTATE LOANS RECEIVABLE (Tables)	6 Months Ended
	Jun. 30, 2014
Receivables [Abstract]	'
Schedule of Real Estate Loans Receivable	'
	As of June 30, 2014 and December 31, 2013, the Company, through indirect wholly owned subsidiaries, had invested in or originated real estate loans receivable as follows (dollars in thousands):
	Loan Name		Date Acquired/ Originated		Property Type	Loan Type		Outstanding Principal Balance as of June 30,				Book Value				Book Value		Contractual Interest Rate (3)	Annualized Effective Interest Rate (3)	Maturity Date (4)
	Location of Related Property or Collateral							2014 (1)				as of				as of
												June 30,				December 31,
												2014 (2)				2013 (2)
	Sheraton Charlotte Airport Hotel First Mortgage
	Charlotte, North Carolina		7/11/11		Hotel	Mortgage		$	14,402			$	14,415			$	14,477	7.50%	7.60%	8/1/18
	Summit I & II First Mortgage
	Reston, Virginia		1/17/12		Office	Mortgage		58,750				58,776				58,781		7.50%	7.60%	2/1/17
	Tuscan Inn First Mortgage Origination (5)
	San Francisco, California		1/21/10		Hotel	Mortgage		—				—				20,077		(5)	(5)	(5)
	Chase Tower First Mortgage Origination (6)
	Austin, Texas		1/25/10		Office	Mortgage		—				—				58,820		(6)	(6)	(6)
	Pappas Commerce First Mortgage Origination (7)
	Boston, Massachusetts		4/5/10		Industrial	Mortgage		—				—				32,673		(7)	(7)	(7)
								$	73,152			$	73,191			$	184,828
	_____________________
	(1) Outstanding principal balance as of June 30, 2014 represents original principal balance outstanding under the loan, increased for any subsequent fundings and reduced for any principal paydowns.
	(2) Book value represents outstanding principal balance, adjusted for unamortized acquisition discounts, origination fees and direct origination and acquisition costs.
	(3) Contractual interest rate is the stated interest rate on the face of the loan. Annualized effective interest rate is calculated as the actual interest income recognized in 2014, using the interest method, annualized and divided by the average amortized cost basis of the investment. The contractual interest rates and annualized effective interest rates presented are as of June 30, 2014.
	(4) Maturity dates are as of June 30, 2014; subject to certain conditions, the maturity dates of certain real estate loans receivable may be extended beyond the maturity date shown.
	(5) On February 7, 2014, the Company, through an indirect wholly owned subsidiary, entered into an early payoff agreement with the borrower of the Tuscan Inn First Mortgage Origination, pursuant to which the borrower of the Tuscan Inn First Mortgage Origination paid off the entire principal balance outstanding of $20.2 million and accrued interest.
	(6) On February 14, 2014, the Company, through an indirect wholly owned subsidiary, entered into an early payoff agreement with the borrower of the Chase Tower First Mortgage Origination, pursuant to which the borrower of the Chase Tower Mortgage Origination paid off the entire principal balance outstanding $58.9 million and accrued interest. Additionally, the borrower paid a yield maintenance premium of $4.9 million in accordance with the early payoff agreement, which was recorded in interest income from real estate loans receivable.
	(7) On June 9, 2014, the borrower under the Pappas Commerce First Mortgage Origination paid off the entire principal balance outstanding of $32.7 million plus accrued interest. The Pappas Commerce First Mortgage had an original maturity date of July 1, 2014.
Schedule of Activity Related to Real Estate Loans Receivable	'
	The following summarizes the activity related to real estate loans receivable for the six months ended June 30, 2014 (in thousands):
	Real estate loans receivable - December 31, 2013	$	184,828
	Principal repayments received on real estate loans receivable	(61		)
	Payoff of real estate loans receivable	(111,688		)
	Amortization of closing costs and origination fees on real estate loans receivable	112
	Real estate loans receivable - June 30, 2014	$	73,191
Schedule of Interest Income from Real Estate Loans Receivable	'
	For the three and six months ended June 30, 2014 and 2013, interest income from real estate loans receivable consisted of the following (in thousands):
			Three Months Ended June 30,							Six Months Ended June 30,
			2014			2013				2014				2013
	Contractual interest income		$	1,989		$	7,190			$	4,921			$	14,284
	Prepayment fee received on real estate loan receivable		—			—				4,917				—
	Accretion of purchase discounts		—			1,358				—				2,659
	Amortization of closing costs and origination fees		(3		)	(138		)		112				(271		)
	Interest income from real estate loans receivable		$	1,986		$	8,410			$	9,950			$	16,672

MARKETABLE_SECURITIES_Tables

MARKETABLE SECURITIES (Tables)	6 Months Ended
	Jun. 30, 2014
Investments, Debt and Equity Securities [Abstract]	'
Summary of Activities of Real Estate Securities	'
	As of June 30, 2014, the Company had invested in marketable securities as follows (in thousands):
	Security Name	Ticker	Cost		Fair Value		Unrealized Gain (Loss)
	PIMCO Enhanced Short Maturity ETF	MINT	$	54,996	$	54,947	$	(49	)
	Pioneer Funds Multi Asset Ultrashort Inc.	MYFRX	60,006		59,981		(25		)
	Guggenheim Enhanced Short Duration ETF	GSY	20,000		20,007		7
	Wells Fargo Advantage Ultra Short Income Fund	SADIX	38,000		38,000		—
			$	173,002	$	172,935	$	(67	)

REAL_ESTATE_HELD_FOR_SALE_Tabl

REAL ESTATE HELD FOR SALE (Tables)	6 Months Ended
	Jun. 30, 2014
Discontinued Operations and Disposal Groups [Abstract]	'
Schedule of Revenue and Expenses of Real Estate Held-for-Sale	'
	The following table summarizes certain revenue and expenses for the Company’s real estate properties that were sold or were held for sale during the three and six months ended June 30, 2014 and 2013, which were included in continuing operations (in thousands):
			Three Months Ended June 30,								Six Months Ended June 30,
			2014				2013				2014			2013
	Revenues
	Rental income		$	23,771			$	26,378			$	50,280		$	52,660
	Tenant reimbursements		11,207				11,072				22,782			21,842
	Other operating income		491				528				1,043			1,083
	Total revenues		35,469				37,978				74,105			75,585
	Expenses
	Operating, maintenance, and management		6,785				6,408				14,358			13,086
	Real estate taxes and insurance		6,564				7,142				13,190			13,360
	Asset management fees to affiliate		2,395				2,451				4,839			4,871
	General and administrative expenses		365				2				424			8
	Depreciation and amortization		452				12,485				11,442			24,918
	Interest expense		7,831				6,822				15,198			13,666
	Impairment charge on real estate		—				—				1,075			—
	Total expenses		$	24,392			$	35,310			$	60,526		$	69,909
Schedule of Major Components of Real Estate Held for Sale and Liabilities Related to Real Estate Held for Sale	'
	The following summary presents the major components of assets and liabilities related to real estate held for sale as of June 30, 2014 and December 31, 2013 (in thousands):
		June 30, 2014				December 31, 2013
	Assets related to real estate held for sale
	Total real estate, at cost and net of impairment charge	$	1,030,619			$	1,248,490
	Accumulated depreciation and amortization	(123,665		)		(144,574		)
	Real estate held for sale, net	906,954				1,103,916
	Other assets	62,405				77,886
	Total assets related to real estate held for sale	$	969,359			$	1,181,802
	Liabilities related to real estate held for sale
	Notes payable	581,568				673,163
	Other liabilities	2,998				5,040
	Total liabilities related to real estate held for sale	$	584,566			$	678,203
Schedules of Concentration of Risk, by Risk Factor	'
	As of June 30, 2014, the Company had over 300 tenants over a diverse range of industries and geographic areas. The Company’s highest tenant industry concentrations (greater than 10% of annualized base rent) were as follows:
	Industry		Number of Tenants		Annualized				Percentage of Annualized Base Rent
					Base Rent (1)
					(in thousands)
	Finance		42		$	32,836			21.4	%
	Computer System Design & Programming		12		25,000				16.3	%
	Legal Services		50		20,268				13.2	%
					$	78,104			50.9	%
	_____________________
	(1) Annualized base rent represents annualized contractual base rental income as of June 30, 2014, adjusted to straight-line any contractual tenant concessions (including free rent), rent increases and rent decreases from the lease’s inception through the balance of the lease term.
	As of June 30, 2014, the following property held for sale represented more than 10% of the Company’s total assets:
	Property		Location		Rentable			Total				Percentage		Annualized Base Rent		Average Annualized Base Rent per sq. ft.		Occupancy
					Square			Real Estate, Net				of Total		(in thousands) (2)
					Feet			(in thousands)				Assets
	300 N. LaSalle Building (1)		Chicago, IL		1,302,901			$	546,181			19.7	%	$	45,366	$	35.02	99.4	%
	_____________________
	(1) Subsequent to June 30, 2014, the Company completed the sale of this property. See Note 15 “Subsequent Events — Disposition of Real Estate Properties Subsequent to June 30, 2014 — 300 N. LaSalle Building.”
	(2) Annualized base rent represents annualized contractual base rental income as of June 30, 2014, adjusted to straight-line any contractual tenant concessions (including free rent), rent increases and rent decreases from the lease’s inception through the balance of the lease term.

NOTES_PAYABLE_Tables

NOTES PAYABLE (Tables)	6 Months Ended
	Jun. 30, 2014
Notes Payable [Abstract]	'
Schedule of Long-term Debt Instruments	'
	As of June 30, 2014 and December 31, 2013, the Company’s notes payable, including notes payable related to real estate held for sale, consisted of the following (dollars in thousands):
		Principal as of June 30,		Principal as of December 31,		Contractual Interest Rate as of	Effective Interest Rate as of	Payment Type	Maturity Date (2)
		2014		2013		June 30, 2014(1)	June 30,
							2014 (1)
	Amended and Restated Portfolio Revolving Loan Facility (3)	$	92,376	$	105,000	One-month LIBOR + 1.80% (3)	3.10%	Interest Only	6/21/17
	300 N. LaSalle Building Mortgage Loan (4)	345,100		348,061		4.25%	4.30%	(4)	8/1/15
	Union Bank Plaza Mortgage Loan (5)	105,000		105,000		One-month LIBOR + 1.75%	3.50%	Interest Only	9/15/15
	Emerald View at Vista Center Mortgage Loan	19,800		19,800		One-month LIBOR + 2.25%	4.60%	Interest Only	1/1/16
	Portfolio Mortgage Loan #1 (6)	319,485		341,544		One-month LIBOR + 2.15%	3.10%	Interest Only	1/27/16
	601 Tower Mortgage Loan (7)	—		16,320		(7)	(7)	Interest Only	6/3/15
	CityPlace Tower Mortgage Loan	71,000		71,000		3.59%	3.60%	Interest Only	8/1/15
	Fountainhead Plaza Mortgage Loan	80,000		80,000		One-month LIBOR + 1.90%	2.90%	Interest Only	12/1/15
	Portfolio Mortgage Loan #2 (8)	—		75,628		One-month LIBOR + 2.75%	(8)	Interest Only	1/1/16
	Portfolio Mortgage Loan #3 (9)	107,640		141,000		One-month LIBOR +	2.40%	Interest Only	3/1/16
						1.75% - 1.85%
	Corporate Technology Centre Mortgage Loan (10)	140,000		140,000		3.50%	3.50%	(10)	4/1/20
	300-600 Campus Drive Revolving Loan (11)	78,000		78,000		One-month LIBOR + 2.05% (11)	2.90%	Interest Only	8/1/16
		$	1,358,401	$	1,521,353
	_____________________
	(1) Contractual interest rate represents the interest rate in effect under the loan as of June 30, 2014. Effective interest rate is calculated as the actual interest rate in effect as of June 30, 2014 (consisting of the contractual interest rate and the effect of interest rate swaps and contractual floor rates, if applicable), using interest rate indices as of June 30, 2014, where applicable. For further information regarding the Company’s derivative instruments, see Note 10, “Derivative Instruments.”
	(2) Represents the initial maturity date or the maturity date as extended as of June 30, 2014; subject to certain conditions, the maturity dates of certain loans may be extended beyond the maturity date shown.
	(3) On June 4, 2014, in connection with the sale of Mountain View Corporate Center, the borrowing capacity under the Amended and Restated Portfolio Revolving Loan Facility was reduced from $145.0 million to $128.3 million. As of June 30, 2014, the Amended and Restated Portfolio Revolving Loan Facility was secured by 350 E. Plumeria Building, Pierre Laclede Center and One Main Place. As of June 30, 2014, the $92.4 million non-revolving portion had been funded, and the $35.9 million revolving portion remained available for future disbursements, subject to certain terms and conditions contained in the loan documents.
	(4) Monthly payments included principal and interest with principal payments calculated using an amortization schedule of 30 years for the balance of the loan term. On July 7, 2014, in connection with the disposition of the 300 N. LaSalle Building, the Company repaid the entire $344.6 million principal balance and all other sums due under this loan, including a repayment penalty of $13.7 million. See “– Subsequent Events – 300 N. LaSalle Building Disposition.”
	(5) On September 15, 2010, in connection with the acquisition of the Union Bank Plaza, the Company entered into a five-year mortgage loan for borrowings of up to $119.3 million secured by the Union Bank Plaza. As of June 30, 2014, $105.0 million had been disbursed to the Company with the remaining loan balance of $14.3 million available for future disbursements, subject to certain conditions set forth in the loan agreement.
	(6) As of June 30, 2014, the Portfolio Mortgage Loan #1 was secured by Horizon Tech Center, Crescent VIII, National City Tower, Granite Tower, Gateway Corporate Center, I-81 Industrial Portfolio, Two Westlake Park and Torrey Reserve West. On July 10, 2014, in connection with the disposition of Torrey Reserve West, the Company repaid $16.8 million of principal due under this loan and Torrey Reserve West was released as security from Portfolio Mortgage Loan #1. On July 25, 2014, in connection with the disposition of Two Westlake Park, the Company repaid $53.1 million of principal due under this loan and Two Westlake Park was released as security from Portfolio Mortgage Loan #1. See “– Subsequent Events – Dispositions of Real Estate Properties Subsequent to June 30, 2014 – Torrey Reserve West” and “— Two Westlake Park.”
	(7) On June 11, 2014 in connection with the disposition of 601 Tower at Carlson Center, the Company paid off the outstanding principal balance due under this loan.
	(8) On June 9, 2014, in connection with the payoff of the Pappas Commerce First Mortgage Loan, the Company repaid the outstanding principal balance due under Portfolio Mortgage Loan #2.
	(9) On March 6, 2013, the Company entered into a three-year senior secured credit facility for borrowings of up to $235.0 million, of which $141.0 million was non-revolving debt and $94.0 million was revolving debt. On June 27, 2014, in connection with the sale of Metropolitan Center, the borrowing capacity under Portfolio Mortgage Loan #3 was reduced to $179.4 million, of which $107.6 million is non-revolving debt and $71.8 million is revolving debt. As of June 30, 2014, the principal balance consisted of the $107.6 million non-revolving portion. The revolving portion of $71.8 million remains available for future disbursements, subject to certain terms and conditions contained in the loan documents. As of June 30, 2014, the Portfolio Mortgage Loan #3 was secured by the 100 & 200 Campus Drive Buildings and Willow Oaks Corporate Center.
	(10) Monthly payments are initially interest-only. Beginning on May 1, 2017, monthly payments include principal and interest with principal payments calculated using an amortization schedule of 30 years for the balance of the loan term, with the remaining principal balance, all accrued and unpaid interest and any other amounts due at maturity.
	(11) On July 10, 2013, the Company entered into a three-year senior secured credit facility for borrowings of up to $120.0 million, of which $95.0 million is non-revolving debt and $25.0 million is revolving debt. As of June 30, 2014, the principal balance consisted of $78.0 million of the non-revolving portion. The remaining non-revolving portion of $17.0 million and the revolving portion of $25.0 million remain available for future disbursements, subject to certain terms and conditions contained in the loan documents.
Schedule of Maturities of Long-term Debt	'
	The following is a schedule of maturities, including principal amortization payments, for all notes payable outstanding as of June 30, 2014 (in thousands):
	July 1, 2014 through December 31, 2014	$	3,024
	2015	598,076
	2016	524,924
	2017	94,157
	2018	2,750
	Thereafter	135,470
		$	1,358,401

OTHER_COMPREHENSIVE_INCOME_LOS1

OTHER COMPREHENSIVE INCOME (LOSS) (Tables)	6 Months Ended
	Jun. 30, 2014
Equity [Abstract]	'
Schedule of Accumulated Other Comprehensive Income (Loss)	'
	The following summarizes the Company’s other comprehensive income (loss) for the six months ended June 30, 2014 (in thousands):
		Derivative Instruments			Marketable Securities			Total
	Accumulated other comprehensive loss - December 31, 2013	$	(10,313	)	$	—		$	(10,313	)
	Unrealized gains (losses)	1,728			(67		)	1,661
	Reclassification of unrealized losses due to hedge ineffectiveness	822			—			822
	Reclassifications of realized losses	521			—			521
	Accumulated other comprehensive loss - June 30, 2014	$	(7,242	)	$	(67	)	$	(7,309	)

DERIVATIVE_INSTRUMENTS_Tables

DERIVATIVE INSTRUMENTS (Tables)	6 Months Ended
	Jun. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Schedule of Notional and Fair Value of Interest Rate Swaps Designated as Cash Flow Hedges	'
	The following table summarizes the notional amount and other information related to the Company’s interest rate swaps as of June 30, 2014 and December 31, 2013. The notional value is an indication of the extent of the Company’s involvement in each instrument at that time, but does not represent exposure to credit, interest rate or market risks (dollars in thousands):
		June 30, 2014		December 31, 2013				Weighted-Average		Weighted-Average Remaining Term
	Derivative Instruments	Number of Instruments	Notional Amount	Number of Instruments		Notional Amount	Reference Rate as of June 30, 2014	Fix Pay Rate		in Years
	Interest Rate Swaps (1)	11	$613,513	16		$842,150	One-month LIBOR/	1.35%		1.8
							Fixed at 0.50% - 2.39%
	_____________________
	(1) During the six months ended June 30, 2014, the Company terminated two interest rate swap agreements and paid an aggregate breakage fee of $0.2 million.
Schedule of Derivative Instruments in Statement of Financial Position	'
	The following table sets forth the fair value of the Company’s derivative instruments as well as their classification on the consolidated balance sheets as of June 30, 2014 and December 31, 2013 (dollars in thousands):
			June 30, 2014				31-Dec-13
	Derivative Instruments	Balance Sheet Location	Number of	Fair Value			Number of	Fair Value
			Instruments				Instruments
	Interest Rate Swaps	Deferred financing costs, prepaid expenses and other assets, at fair value	2	$	15		2	$	225
	Interest Rate Swaps	Other liabilities, at fair value	9	$	(8,120	)	14	$	(10,260	)

FAIR_VALUE_DISCLOSURES_Tables

FAIR VALUE DISCLOSURES (Tables)	6 Months Ended
	Jun. 30, 2014
Fair Value Disclosures [Abstract]	'
Schedule of Face Value, Carrying Amounts and Fair Value	'
	The following were the face values, carrying amounts and fair values of the Company’s real estate loans receivable and notes payable as of June 30, 2014 and December 31, 2013, which carrying amounts do not approximate the fair values (in thousands):
		June 30, 2014								December 31, 2013
		Face Value			Carrying		Fair Value			Face Value		Carrying		Fair Value
					Amount							Amount
	Financial assets:
	Real estate loans receivable	$	73,152		$	73,191	$	73,820		$	184,900	$	184,828	$	190,485
	Financial liabilities:
	Notes payable	$	1,358,401		$	1,358,401	$	1,376,631		$	1,521,353	$	1,521,353	$	1,526,075
Schedule of Assets and Liabilities at Fair Value	'
	During the six months ended June 30, 2014, the Company measured the following assets and liabilities at fair value (in thousands):
					Fair Value Measurements Using
		Total			Quoted Prices in		Significant Other			Significant
					Active Markets		Observable			Unobservable
					for Identical Assets		Inputs (Level 2)			Inputs (Level 3)
					(Level 1)
	Recurring Basis:
	Marketable securities	$	172,935		$	172,935	$	—		$	—
	Asset derivatives	15			—		15			—
	Liability derivatives	(8,120		)	—		(8,120		)	—

RELATED_PARTY_TRANSACTIONS_Tab

RELATED PARTY TRANSACTIONS (Tables)	6 Months Ended
	Jun. 30, 2014
Related Party Transactions [Abstract]	'
Schedule of Related Party Costs	'
	Pursuant to the terms of these agreements, summarized below are the related-party costs incurred by the Company for the three and six months ended June 30, 2014 and 2013, respectively, and any related amounts payable as of June 30, 2014 and December 31, 2013 (in thousands):
		Incurred				Incurred				Payable as of
		Three Months Ended June 30,				Six Months Ended June 30,				June 30,		December 31,
		2014		2013		2014		2013		2014		2013
	Expensed
	Asset management fees	$	5,631	$	5,993	$	11,335	$	11,484	$	—	$	—
	Reimbursement of operating expenses (1)	37		33		73		58		—		—
	Acquisition fees	—		—		—		1,797		—		—
	Disposition fees (2)	2,563		—		2,563		—		—		—
		$	8,231	$	6,026	$	13,971	$	13,339	$	—	$	—
	_____________________
	(1) The Advisor may seek reimbursement for certain employee costs under the Advisory Agreement. The Company reimburses the Advisor for the Company’s allocable portion of the salaries, benefits and overhead of internal audit department personnel providing services to the Company. These amounts totaled $37,000 and $33,000 for the three months ended June 30, 2014 and 2013, respectively, and $73,000 and $58,000 for the six months ended June 30, 2014 and 2013, respectively, and were the only type of employee costs reimbursed under the Advisory Agreement for the three and six months ended June 30, 2014 and 2013. The Company will not reimburse for employee costs in connection with services for which the Advisor earns acquisition, origination or disposition fees (other than reimbursement of travel and communication expenses) or for the salaries or benefits the Advisor or its affiliates may pay to the Company’s executive officers.
	(2) Disposition fees with respect to real estate sold are included in the gain on sales of real estate in the accompanying consolidated statements of operations.

SEGMENT_INFORMATION_Tables

SEGMENT INFORMATION (Tables)	6 Months Ended
	Jun. 30, 2014
Segment Reporting [Abstract]	'
Schedule of Segment Reporting Information, by Segment	'
	The following tables summarize total revenues and NOI for each reportable segment for the three and six months ended June 30, 2014 and 2013 and total assets and total liabilities for each reportable segment as of June 30, 2014 and December 31, 2013 (in thousands):
		For the Three Months Ended June 30,						For the Six Months Ended June 30,
		2014			2013			2014			2013
	Revenues:
	Real estate segment (1)	$	80,641		$	84,802		$	165,132		$	163,427
	Real estate-related segment	1,986			8,410			9,950			16,672
	Total segment revenues	82,627			93,212			175,082			180,099
	Corporate-level	89			—			89			—
	Total revenues	$	82,716		$	93,212		$	175,171		$	180,099
	Interest Expense:
	Real estate segment (1)	$	14,626		$	14,890		$	28,855		$	28,839
	Real estate-related segment	587			1,141			993			2,272
	Total segment interest expense	15,213			16,031			29,848			31,111
	Corporate-level	—			167			—			380
	Total interest expense	$	15,213		$	16,198		$	29,848		$	31,491
	NOI:
	Real estate segment (1)	$	31,783		$	35,031		$	66,141		$	67,709
	Real estate-related segment	1,201			6,715			8,444			13,300
	Total segment NOI	32,984			41,746			74,585			81,009
	Corporate-level	89			—			89			—
	Total NOI	$	33,073		$	41,746		$	74,674		$	81,009
		As of June 30,			As of December 31,
		2014			2013
	Assets:
	Real estate segment	$	1,408,846		$	1,440,578
	Real estate-related segment	73,697			229,457
	Total segment assets	1,482,543			1,670,035
	Real estate held for sale	969,359			1,181,802
	Corporate-level (2)	324,379			102,463
	Total assets	$	2,776,281		$	2,954,300
	Liabilities:
	Real estate segment	$	844,406		$	848,854
	Real estate-related segment	13			75,820
	Total segment liabilities	844,419			924,674
	Real estate held for sale	584,566			678,203
	Corporate-level (3)	11,311			11,379
	Total liabilities	$	1,440,296		$	1,614,256
	_____________________
	(1) Amounts include properties sold and properties held for sale. See Note 7, “Real Estate Held for Sale” for more information.
	(2) Total corporate-level assets consisted primarily of marketable securities and cash and cash equivalents of approximately $323.9 million as of June 30, 2014 and of cash and cash equivalents of approximately $102.2 million as of December 31, 2013.
	(3) As of June 30, 2014 and December 31, 2013, corporate-level liabilities consisted primarily of distributions payable.
Reconciliation of Net Income (Loss) to Net Operating Income (Loss)	'
	The following table reconciles the Company’s net income to its NOI for the three and six months ended June 30, 2014 and 2013 (in thousands):
		For the Three Months Ended June 30,						For the Six Months Ended June 30,
		2014			2013			2014			2013
	Net income	$	59,719		$	9,432		$	70,146		$	15,864
	Gain on sales of real estate, net	(46,647		)	—			(46,647		)	—
	Other interest income	(21		)	(11		)	(54		)	(15		)
	Real estate acquisition fees to affiliates	—			—			—			1,797
	Real estate acquisition fees and expenses	—			7			—			623
	General and administrative expenses	1,513			1,222			2,802			2,337
	Depreciation and amortization	18,509			30,929			47,352			60,023
	Impairment charge on real estate	—			—			1,075			—
	Corporate-level interest expense	—			167			—			380
	NOI	$	33,073		$	41,746		$	74,674		$	81,009

ORGANIZATION_Details

ORGANIZATION (Details) (USD $)	6 Months Ended	12 Months Ended	35 Months Ended	74 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Mar. 22, 2011	Jun. 30, 2014
	LoansReceivables			LoansReceivables
	properties			properties
Organizational Structure [Line Items]	'	'	'	'
Partnership interest in Operating Partnership	0.10%	'	'	'
Partnership interest in the Operating Partnership and is its sole limited partner	99.90%	'	'	'
Number of real estate properties	23	'	'	23
Number of real estate loans receivable	2	'	'	2
Number of real estate properties classified as held-for-sale	6	'	'	6
Issuance of common stock, value	$26,885,000	$70,562,000	$1,800,000,000	'
Shares of common stock sold under dividend reinvestment plan, value	'	'	'	298,200,000
Redemptions of common stock, value	42,217,000	53,168,000	'	227,100,000
Common Stock [Member]	'	'	'	'
Organizational Structure [Line Items]	'	'	'	'
Issuance of common stock, shares	2,749,008	7,214,805	182,681,633	'
Issuance of common stock, value	28,000	72,000	'	'
Shares of common stock sold under dividend reinvestment plan, shares	'	'	'	30,903,504
Redemptions of common stock, shares	4,123,743	5,219,003	'	22,709,903
Redemptions of common stock, value	$42,000	$52,000	'	'
KBS Capital Advisors LLC [Member] | Common Stock [Member]	'	'	'	'
Organizational Structure [Line Items]	'	'	'	'
Shares held by affiliate	20,000	'	'	20,000
Office Properties [Member]	'	'	'	'
Organizational Structure [Line Items]	'	'	'	'
Number of real estate properties	17	'	'	17
Office-Flex Properties [Member]	'	'	'	'
Organizational Structure [Line Items]	'	'	'	'
Number of real estate properties	1	'	'	1
Industrial Properties Porfolio-1 [Member]	'	'	'	'
Organizational Structure [Line Items]	'	'	'	'
Number of real estate properties	4	'	'	4
Office Buildings, Campus [Member]	'	'	'	'
Organizational Structure [Line Items]	'	'	'	'
Number of real estate properties	8	'	'	8

SUMMARY_OF_SIGNIFICANT_ACCOUNT2

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $)	0 Months Ended		3 Months Ended		6 Months Ended
In Millions, except Per Share data, unless otherwise specified	Jun. 30, 2014	Feb. 04, 2013	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
			properties		properties
Accounting Policies [Abstract]	'	'	'	'	'	'
Number of real estate properties classified as office properties	'	'	6	'	6	'
Share redemption program, dollar limitation for fiscal 2014	$10	'	'	'	'	'
Share redemption program, dollar limitation, available amount	'	'	$9.50	'	$9.50	'
Distributions declared per common share (usd per share)	'	'	$0.16	$0.16	$0.32	$0.38
Distribution rate per share per day, declared	'	$0.05	'	'	$0.00	$0.00

REAL_ESTATE_HELD_FOR_INVESTMEN2

REAL ESTATE HELD FOR INVESTMENT (Narrative) (Details)	Jun. 30, 2014
	properties
Real Estate Properties [Line Items]	'
Number of real estate properties	23
Percentage of portfolio occupied	91.00%
Real Estate Held-for-Investment [Member]	'
Real Estate Properties [Line Items]	'
Rentable square feet	7,400,000
Office Properties [Member]	'
Real Estate Properties [Line Items]	'
Number of real estate properties	17
Office Properties [Member] | Real Estate Held-for-Investment [Member]	'
Real Estate Properties [Line Items]	'
Number of real estate properties	11
Office-Flex Properties [Member]	'
Real Estate Properties [Line Items]	'
Number of real estate properties	1
Office-Flex Properties [Member] | Real Estate Held-for-Investment [Member]	'
Real Estate Properties [Line Items]	'
Number of real estate properties	1
Office Campus [Member]	'
Real Estate Properties [Line Items]	'
Number of real estate properties	1
Office Buildings, Campus [Member]	'
Real Estate Properties [Line Items]	'
Number of real estate properties	8
Office Buildings, Campus [Member] | Real Estate Held-for-Investment [Member]	'
Real Estate Properties [Line Items]	'
Number of real estate properties	8
Industrial Properties Porfolio-1 [Member]	'
Real Estate Properties [Line Items]	'
Number of real estate properties	4
Industrial Properties Porfolio-1 [Member] | Real Estate Held-for-Investment [Member]	'
Real Estate Properties [Line Items]	'
Number of real estate properties	4

REAL_ESTATE_HELD_FOR_INVESTMEN3

REAL ESTATE HELD FOR INVESTMENT (Schedule of Real Estate Investments) (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Real Estate Properties [Line Items]	'	'
Total real estate, cost	$1,545,587	$1,549,593
Accumulated depreciation and amortization	-238,051	-218,249
Total real estate held for investment, net	1,307,536	1,331,344
Office [Member]	'	'
Real Estate Properties [Line Items]	'	'
Total real estate, cost	1,463,260	1,467,278
Industrial [Member]	'	'
Real Estate Properties [Line Items]	'	'
Total real estate, cost	82,327	82,315
Land [Member]	'	'
Real Estate Properties [Line Items]	'	'
Total real estate, cost	211,347	211,347
Total real estate held for investment, net	211,347	211,347
Land [Member] | Office [Member]	'	'
Real Estate Properties [Line Items]	'	'
Total real estate, cost	204,097	204,097
Land [Member] | Industrial [Member]	'	'
Real Estate Properties [Line Items]	'	'
Total real estate, cost	7,250	7,250
Buildings and Improvements [Member]	'	'
Real Estate Properties [Line Items]	'	'
Total real estate, cost	1,189,648	1,184,931
Accumulated depreciation and amortization	-160,780	-143,941
Total real estate held for investment, net	1,028,868	1,040,990
Buildings and Improvements [Member] | Office [Member]	'	'
Real Estate Properties [Line Items]	'	'
Total real estate, cost	1,126,981	1,122,276
Buildings and Improvements [Member] | Industrial [Member]	'	'
Real Estate Properties [Line Items]	'	'
Total real estate, cost	62,667	62,655
Tenant Origination and Absorption Costs [Member]	'	'
Real Estate Properties [Line Items]	'	'
Total real estate, cost	144,592	153,315
Accumulated depreciation and amortization	-77,271	-74,308
Total real estate held for investment, net	67,321	79,007
Tenant Origination and Absorption Costs [Member] | Office [Member]	'	'
Real Estate Properties [Line Items]	'	'
Total real estate, cost	132,182	140,905
Tenant Origination and Absorption Costs [Member] | Industrial [Member]	'	'
Real Estate Properties [Line Items]	'	'
Total real estate, cost	$12,410	$12,410

REAL_ESTATE_HELD_FOR_INVESTMEN4

REAL ESTATE HELD FOR INVESTMENT (Operating Leases) (Narrative) (Details) (USD $)	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
	Tenants
Operating Leased Assets [Line Items]	'	'	'
Deferred rent recognized	$3,717,000	$6,689,000	'
Deferred rent receivables	37,700,000	'	34,800,000
Unamortized lease incentives	3,600,000	'	3,200,000
Number of tenants	300	'	'
Recorded bad debt expense related to tenant	390,000	461,000	'
Bad debt reserve	700,000	'	'
Other Liabilities [Member]	'	'	'
Operating Leased Assets [Line Items]	'	'	'
Security deposit liability	$4,000,000	'	$4,600,000
Maximum [Member]	'	'	'
Operating Leased Assets [Line Items]	'	'	'
Operating lease, term	'15 years 3 months 18 days	'	'
Bad debt reserve of annualized base rent	1.00%	'	'
Weighted Average [Member]	'	'	'
Operating Leased Assets [Line Items]	'	'	'
Operating lease, term	'4 years 2 months 12 days	'	'

REAL_ESTATE_HELD_FOR_INVESTMEN5

REAL ESTATE HELD FOR INVESTMENT (Future Minimum Rental Income) (Details) (USD $)	Jun. 30, 2014
In Thousands, unless otherwise specified
Real Estate [Abstract]	'
July 1, 2014 through December 31, 2014	$73,819
2015	142,631
2016	131,497
2017	116,845
2018	89,997
Thereafter	231,537
Future minimum rental income	$786,326

REAL_ESTATE_HELD_FOR_INVESTMEN6

REAL ESTATE HELD FOR INVESTMENT (Highest Tenant Industry Concentrations- Grater than 10% of Annual Base Rent) (Details) (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014
	Tenants
Concentration Risk [Line Items]	'
Number of Tenants	300
Annualized Base Rent	$78,104	[1]
Percentage of Annualized Base Rent	50.90%
Industry - Finance [Member]	'
Concentration Risk [Line Items]	'
Number of Tenants	42
Annualized Base Rent	32,836	[1]
Percentage of Annualized Base Rent	21.40%
Industry - Computer System Design & Programming [Member]	'
Concentration Risk [Line Items]	'
Number of Tenants	12
Annualized Base Rent	25,000	[1]
Percentage of Annualized Base Rent	16.30%
Industry - Legal Services [Member]	'
Concentration Risk [Line Items]	'
Number of Tenants	50
Annualized Base Rent	$20,268	[1]
Percentage of Annualized Base Rent	13.20%
[1]	Annualized base rent represents annualized contractual base rental income as of June 30, 2014, adjusted to straight-line any contractual tenant concessions (including free rent), rent increases and rent decreases from the lease’s inception through the balance of the lease term.

REAL_ESTATE_HELD_FOR_INVESTMEN7

REAL ESTATE HELD FOR INVESTMENT REAL ESTATE HELD FOR INVESTMENT (Geographic Concentration Risk) (Details)	6 Months Ended
	Jun. 30, 2014
Concentration Risk [Line Items]	'
Concentration risk, percentage	50.90%
CALIFORNIA [Member] | Assets, Total [Member]	'
Concentration Risk [Line Items]	'
Concentration risk, percentage	17.10%
NEW JERSEY [Member] | Assets, Total [Member]	'
Concentration Risk [Line Items]	'
Concentration risk, percentage	11.40%
ILLINOIS [Member] | Assets, Total [Member] | Assets Held-for-sale [Member]	'
Concentration Risk [Line Items]	'
Concentration risk, percentage	19.70%
ILLINOIS [Member] | Revenues, Total [Member] | Assets Held-for-sale [Member]	'
Concentration Risk [Line Items]	'
Concentration risk, percentage	20.00%

TENANT_ORIGINATION_AND_ABSORPT2

TENANT ORIGINATION AND ABSORPTION COSTS, ABOVE-MARKET LEASE ASSETS AND BELOW-MARKET LEASE LIABILITIES (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Tenant Origination and Absorption Costs, Above-Market Lease Assets and Below-Market Lease Liabilities [Abstract]	'	'	'	'	'
Tenant Origination And Absorption Costs, Cost	$144,592	'	$144,592	'	$153,315
Tenant Origination and Absorption Costs, Accumulated Amortization	-77,271	'	-77,271	'	-74,308
Tenant Origination and Absorption Costs, Net Amount	67,321	'	67,321	'	79,007
Tenant Origination and Absorption Costs, Amortization expense	-6,164	-10,701	-15,230	-20,873	'
Above-Market Lease Assets, Cost	29,222	'	29,222	'	29,569
Above-Market Lease Assets, Accumulated Amortization	-12,925	'	-12,925	'	-10,307
Above-Market Lease Assets, Net Amount	16,297	'	16,297	'	19,262
Above-Market Lease Assets, Amortization expense	-2,702	-2,558	-5,077	-4,750	'
Below-Market Lease Liabilities, Cost	-37,451	'	-37,451	'	-39,487
Below-Market Lease Liabilities, Accumulated Amortization	22,377	'	22,377	'	21,544
Below-Market Lease Liabilities, Net Amount	-15,074	'	-15,074	'	-17,943
Below-Market Lease Liabilities, Amortization expense	$1,676	$2,062	$3,545	$3,758	'

REAL_ESTATE_LOANS_RECEIVABLE_S

REAL ESTATE LOANS RECEIVABLE (Schedule of Real Estate Loans Receivable) (Details) (USD $)

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Jun. 09, 2014

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Feb. 07, 2014

Dec. 31, 2013

Jun. 30, 2014

Feb. 14, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Tuscan Inn First Mortgage Origination [Member]

Pappas Commerce First Mortgage Origination [Member]

Mortgages [Member]

Mortgages [Member]

Mortgages [Member]

Mortgages [Member]

Mortgages [Member]

Mortgages [Member]

Mortgages [Member]

Mortgages [Member]

Mortgages [Member]

Mortgages [Member]

Mortgages [Member]

Mortgages [Member]

Sheraton Charlotte Airport Hotel First Mortgage [Member]

Sheraton Charlotte Airport Hotel First Mortgage [Member]

Origination of Summit I & II First Mortgage [Member]

Origination of Summit I & II First Mortgage [Member]

Tuscan Inn First Mortgage Origination [Member]

Tuscan Inn First Mortgage Origination [Member]

Tuscan Inn First Mortgage Origination [Member]

Chase Tower First Mortgage Origination [Member]

Chase Tower First Mortgage Origination [Member]

Chase Tower First Mortgage Origination [Member]

Pappas Commerce First Mortgage Origination [Member]

Pappas Commerce First Mortgage Origination [Member]

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

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Date Acquired/ Originated

'

'

'

'

11-Jul-11

'

17-Jan-12

'

21-Jan-10

[1]

'

'

25-Jan-10

[2]

'

'

5-Apr-10

[3]

'

Outstanding Principal Balance

$73,152,000

[4]

'

'

'

$14,402,000

[4]

'

$58,750,000

[4]

'

$0

[1],[4]

'

'

$0

[2],[4]

'

'

$0

[3],[4]

'

Book Value

73,191,000

[5]

184,828,000

[5]

'

'

14,415,000

[5]

14,477,000

[5]

58,776,000

[5]

58,781,000

[5]

0

[1],[5]

'

20,077,000

[1],[5]

0

[2],[5]

'

58,820,000

[2],[5]

0

[3],[5]

32,673,000

[3],[5]

Contractual Interest Rate

'

'

'

'

7.50%

[6]

'

7.50%

[6]

'

'

'

'

'

'

'

'

'

Annualized Effective Interest Rate

'

'

'

'

7.60%

[6]

'

7.60%

[6]

'

'

'

'

'

'

'

'

'

Maturity Date

'

'

'

'

1-Aug-18

[7]

'

1-Feb-17

[7]

'

'

'

'

'

'

'

'

'

Accrued interest

3,900,000

4,500,000

'

'

'

'

'

'

'

20,200,000

'

'

58,900,000

'

'

'

Maintenance premium

'

'

'

'

'

'

'

'

'

'

'

'

4,900,000

'

'

'

Extinguishment of debt

'

'

$111,688,000

$32,700,000

'

'

'

'

'

'

'

'

'

'

'

'

[1]

On February 7, 2014, the Company, through an indirect wholly owned subsidiary, entered into an early payoff agreement with the borrower of the Tuscan Inn First Mortgage Origination, pursuant to which the borrower of the Tuscan Inn First Mortgage Origination paid off the entire principal balance outstanding of $20.2 million

[2]

On February 14, 2014, the Company, through an indirect wholly owned subsidiary, entered into an early payoff agreement with the borrower of the Chase Tower First Mortgage Origination, pursuant to which the borrower of the Chase Tower Mortgage Origination paid off the entire principal balance outstanding $58.9 million and accrued interest. Additionally, the borrower paid a yield maintenance premium of $4.9 million in accordance with the early payoff agreement, which was recorded in interest income from real estate loans receivable.

[3]

On June 9, 2014, the borrower under the Pappas Commerce First Mortgage Origination paid off the entire principal balance outstanding of $32.7 million plus accrued interest. The Pappas Commerce First Mortgage had an original maturity date of July 1, 2014.

[4]

Outstanding principal balance as of June 30, 2014 represents original principal balance outstanding under the loan, increased for any subsequent fundings and reduced for any principal paydowns.

[5]

Book value represents outstanding principal balance, adjusted for unamortized acquisition discounts, origination fees and direct origination and acquisition costs.

[6]

Contractual interest rate is the stated interest rate on the face of the loan. Annualized effective interest rate is calculated as the actual interest income recognized in 2014, using the interest method, annualized and divided by the average amortized cost basis of the investment. The contractual interest rates and annualized effective interest rates presented are as of June 30, 2014.

[7]

Maturity dates are as of June 30, 2014; subject to certain conditions, the maturity dates of certain real estate loans receivable may be extended beyond the maturity date shown.

REAL_ESTATE_LOANS_RECEIVABLE_S1

REAL ESTATE LOANS RECEIVABLE (Schedule of Activity Related to Real Estate Loans Receivable) (Details) (USD $)	3 Months Ended			6 Months Ended				0 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014		Jun. 30, 2013	Jun. 30, 2014		Jun. 30, 2013	Jun. 30, 2014	Jun. 09, 2014
							Tuscan Inn First Mortgage Origination [Member]	Pappas Commerce First Mortgage Origination [Member]
Real Estate Loans Receivable [Roll Forward]	'		'	'		'	'	'
Real estate loans receivables, Beginning Balance	'		'	$184,828	[1]	'	'	'
Principal repayment received on real estate loan receivable	'		'	-61		-890	'	'
Early payoff	'		'	'		'	-111,688	-32,700
Amortization of closing costs and origination fees on real estate loans receivable	-3		-138	112		-271	'	'
Real estate loans receivables, Ending Balance	$73,191	[1]	'	$73,191	[1]	'	'	'
[1]	Book value represents outstanding principal balance, adjusted for unamortized acquisition discounts, origination fees and direct origination and acquisition costs.

REAL_ESTATE_LOANS_RECEIVABLE_S2

REAL ESTATE LOANS RECEIVABLE (Schedule of Interest Income from Real Estate Loans Receivable) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Receivables [Abstract]	'	'	'	'	'
Contractual interest income	$1,989,000	$7,190,000	$4,921,000	$14,284,000	'
Prepayment fees received on loans receivable	0	0	4,917,000	0	'
Accretion of purchase discounts	0	1,358,000	0	2,659,000	'
Amortization of closing costs and origination fees	-3,000	-138,000	112,000	-271,000	'
Interest income from real estate loans receivable	1,986,000	8,410,000	9,950,000	16,672,000	'
Interest receivable	$500,000	'	$500,000	'	$1,300,000

MARKETABLE_SECURITIES_Narrativ

MARKETABLE SECURITIES (Narrative) (Details) (USD $)	6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Investments, Debt and Equity Securities [Abstract]	'	'
Marketable securities, fair value	$172,935,000	$0
Unrealized loss	$100,000	'

MARKETABLE_SECURITIES_Activity

MARKETABLE SECURITIES (Activity of Real Estate Securities) (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost	$173,002	'
Market Value	172,935	0
Unrealized Gain (Loss)	-67	'
Pimco Enhanced Short Maturity ETF [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost	54,996	'
Market Value	54,947	'
Unrealized Gain (Loss)	-49	'
Pioneer Funds Multi Asset Ultrashort Inc. [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost	60,006	'
Market Value	59,981	'
Unrealized Gain (Loss)	-25	'
Guggenheim Enhanced Short Duration ETF [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost	20,000	'
Market Value	20,007	'
Unrealized Gain (Loss)	7	'
Wells Fargo Advantage Untra Short Income Fund [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost	38,000	'
Market Value	38,000	'
Unrealized Gain (Loss)	$0	'

MARKETABLE_SECURITIES_Holding_

MARKETABLE SECURITIES (Holding Period of Unrealized Losses of Investments in Real Estate Securities) (Details) (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014
Pimco Enhanced Short Maturity ETF [Member]	'
Schedule of Available-for-sale Securities [Line Items]	'
Less Than 12 Months, Fair Value	$54,947
Less Than 12 Months, Unrealized Losses	-49
12 Months or More, Fair Value	0
12 Months or More, Unrealized Losses	0
Total, Fair Value	54,947
Total, Unrealized Losses	-49
Pioneer Funds Multi Asset Ultrashort Inc. [Member]	'
Schedule of Available-for-sale Securities [Line Items]	'
Less Than 12 Months, Fair Value	59,981
Less Than 12 Months, Unrealized Losses	-25
12 Months or More, Fair Value	0
12 Months or More, Unrealized Losses	0
Total, Fair Value	59,981
Total, Unrealized Losses	($25)

REAL_ESTATE_HELD_FOR_SALE_Narr

REAL ESTATE HELD FOR SALE (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
	properties		properties
Real Estate Properties [Line Items]	'	'	'	'	'
Number of real estate properties classified as office properties	6	'	6	'	'
Real estate held for sale, net	$906,954	'	$906,954	'	$1,103,916
Impairment charge on real estate held for sale	0	0	1,075	0	'
Office Properties [Member]	'	'	'	'	'
Real Estate Properties [Line Items]	'	'	'	'	'
Number of real estate properties sold	'	'	3	'	'
Industrial Properties [Member]	'	'	'	'	'
Real Estate Properties [Line Items]	'	'	'	'	'
Number of real estate properties sold	'	'	1	'	'
Leasehold interest in real estate properties	'	'	1	'	'
Assets Held-for-sale [Member]	'	'	'	'	'
Real Estate Properties [Line Items]	'	'	'	'	'
Impairment charge on real estate held for sale	0	0	1,075	0	'
Real Estate Held-for-Sale [Member]	'	'	'	'	'
Real Estate Properties [Line Items]	'	'	'	'	'
Real estate held for sale, net	$965,500	'	$965,500	'	'

REAL_ESTATE_HELD_FOR_SALE_Reve

REAL ESTATE HELD FOR SALE (Revenue and Expenses of Real Estate Held-for-Sale) (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Revenues	'	'	'	'
Rental income	$62,049	$65,818	$127,264	$127,543
Tenant reimbursements	15,893	16,292	32,562	30,593
Total revenues	82,716	93,212	175,171	180,099
Expenses	'	'	'	'
Real estate taxes and insurance	12,015	12,960	24,334	23,846
Asset management fees to affiliate	5,631	5,993	11,335	11,484
General and administrative expenses	1,513	1,222	2,802	2,337
Depreciation and amortization	18,509	30,929	47,352	60,023
Interest expense	15,213	16,198	29,848	31,491
Impairment charge on real estate held for sale	0	0	1,075	0
Total expenses	69,665	83,791	151,726	164,250
Assets Held-for-sale [Member]	'	'	'	'
Revenues	'	'	'	'
Rental income	23,771	26,378	50,280	52,660
Tenant reimbursements	11,207	11,072	22,782	21,842
Other operating income	491	528	1,043	1,083
Total revenues	35,469	37,978	74,105	75,585
Expenses	'	'	'	'
Operating, maintenance, and management	6,785	6,408	14,358	13,086
Real estate taxes and insurance	6,564	7,142	13,190	13,360
Asset management fees to affiliate	2,395	2,451	4,839	4,871
General and administrative expenses	365	2	424	8
Depreciation and amortization	452	12,485	11,442	24,918
Interest expense	7,831	6,822	15,198	13,666
Impairment charge on real estate held for sale	0	0	1,075	0
Total expenses	$24,392	$35,310	$60,526	$69,909

REAL_ESTATE_HELD_FOR_SALE_Sche

REAL ESTATE HELD FOR SALE (Schedule of Major Components of Real Estate Held for Sale and Liabilities Related to Real Estate Held for Sale) (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Discontinued Operations and Disposal Groups [Abstract]	'	'
Total real estate, at cost and net of impairment charges	$1,030,619	$1,248,490
Accumulated depreciation and amortization	-123,665	-144,574
Real estate held for sale, net	906,954	1,103,916
Other assets	62,405	77,886
Total assets	969,359	1,181,802
Notes payable	581,568	673,163
Other liabilities	2,998	5,040
Total liabilities	$584,566	$678,203

REAL_ESTATE_HELD_FOR_SALE_Prop

REAL ESTATE HELD FOR SALE (Properties Held-for-Sale that Represent more than 10% of Company's Total Assets) (Details) (USD $)	6 Months Ended
	Jun. 30, 2014		Dec. 31, 2013
Real Estate Properties [Line Items]	'		'
Total Real Estate, Net	$1,307,536,000		$1,331,344,000
Percentage of Total Assets	50.90%		'
Annualized Base Rent	78,104,000	[1]	'
Occupancy	91.00%		'
Assets, Total [Member] | 300 N. Lasalle [Member]	'		'
Real Estate Properties [Line Items]	'		'
Rentable Square Feet	1,302,901	[2]	'
Total Real Estate, Net	546,181,000	[2]	'
Percentage of Total Assets	19.70%	[2]	'
Annualized Base Rent	45,366,000	[1],[2]	'
Average Annualized Base Rent per sq. ft.	$35.02	[2]	'
Occupancy	99.40%	[2]	'
[1]	Annualized base rent represents annualized contractual base rental income as of June 30, 2014, adjusted to straight-line any contractual tenant concessions (including free rent), rent increases and rent decreases from the lease’s inception through the balance of the lease term.
[2]	Subsequent to June 30, 2014, the Company completed the sale of this property. See Note 15 “Subsequent Events — Disposition of Real Estate Properties Subsequent to June 30, 2014 — 300 N. LaSalle Building.”

NOTES_PAYABLE_Narrative_Detail

NOTES PAYABLE (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Debt Instrument [Line Items]	'	'	'	'	'
Interest expense	$15,213,000	$16,198,000	$29,848,000	$31,491,000	'
Interest payable, current	3,900,000	'	3,900,000	'	4,500,000
Amortization of deferred financing costs	1,900,000	800,000	2,759,000	1,558,000	'
Additional interest expense related to the effective portion of cash flow hedges	2,300,000	2,500,000	4,600,000	4,900,000	'
Unrealized losses due to hedge ineffectiveness	-100,000	'	-900,000	'	'
601 Tower Mortgage Loan [Member]	'	'	'	'	'
Debt Instrument [Line Items]	'	'	'	'	'
Prepayment fees related to pay-off of debt	'	'	400,000	'	'
Deferred Financing Costs, Prepaid Expenses and Other Assets [Member]	'	'	'	'	'
Debt Instrument [Line Items]	'	'	'	'	'
Deferred financing costs	$4,200,000	'	$4,200,000	'	$5,400,000

NOTES_PAYABLE_Schedule_of_Long

NOTES PAYABLE (Schedule of Long-term Debt Instruments) (Details) (USD $)

Jun. 30, 2014

Dec. 31, 2013

Jun. 27, 2014

Mar. 06, 2013

Jun. 30, 2014

Jun. 27, 2014

Mar. 06, 2013

Jun. 27, 2014

Mar. 06, 2013

Jul. 10, 2013

Jun. 30, 2014

Jul. 10, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Jun. 30, 2014

Dec. 31, 2013

Jul. 27, 2014

Jul. 27, 2014

Sep. 15, 2010

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Jun. 30, 2014

Dec. 31, 2013

Jul. 10, 2014

Jun. 30, 2014

Jul. 25, 2014

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Mar. 06, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Dec. 31, 2013

Jul. 10, 2013

Jun. 30, 2014

Dec. 31, 2013

Jul. 10, 2013

Jun. 30, 2014

Jun. 04, 2014

Jun. 21, 2013

Jun. 30, 2014

Jun. 30, 2014

Portfolio Mortgage Loan 3 [Member]

Portfolio Mortgage Loan 3 [Member]

Portfolio Mortgage Loan 3 [Member]

Portfolio Mortgage Loan 3 [Member]

Portfolio Mortgage Loan 3 [Member]

Portfolio Mortgage Loan 3 [Member]

Portfolio Mortgage Loan 3 [Member]

300-600 Campus Drive Revolving Loan [Member]

300-600 Campus Drive Revolving Loan [Member]

300-600 Campus Drive Revolving Loan [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Mortgage [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Non-Revolving Credit Facility [Member]

Non-Revolving Credit Facility [Member]

Non-Revolving Credit Facility [Member]

Secured Debt [Member]

Secured Debt [Member]

Revolving Credit Facility [Member]

Non-Revolving Credit Facility [Member]

Non-Revolving Credit Facility [Member]

Portfolio Revolving Loan [Member]

Portfolio Revolving Loan [Member]

Portfolio Revolving Loan [Member]

300 N. Lasalle [Member]

300 N. Lasalle [Member]

300 N. Lasalle [Member]

300 N. Lasalle [Member]

Union Bank Plaza [Member]

Union Bank Plaza [Member]

Union Bank Plaza [Member]

Union Bank Plaza [Member]

Emerald View at Vista Center [Member]

Emerald View at Vista Center [Member]

Emerald View at Vista Center [Member]

Portfolio Mortgage Loan 1 [Member]

Portfolio Mortgage Loan 1 [Member]

Portfolio Mortgage Loan 1 [Member]

Portfolio Mortgage Loan 1 [Member]

Two Westlake Park [Member]

601 Tower at Carlson Center [Member]

601 Tower at Carlson Center [Member]

601 Tower at Carlson Center [Member]

CityPlace Tower [Member]

CityPlace Tower [Member]

Fountainhead Plaza [Member]

Fountainhead Plaza [Member]

Fountainhead Plaza [Member]

Portfolio Mortgage Loan 2 [Member]

Portfolio Mortgage Loan 2 [Member]

Portfolio Mortgage Loan 2 [Member]

Portfolio Mortgage Loan 3 [Member]

Portfolio Mortgage Loan 3 [Member]

Portfolio Mortgage Loan 3 [Member]

Portfolio Mortgage Loan 3 [Member]

Portfolio Mortgage Loan 3 [Member]

Corporate Technology Centre [Member]

Corporate Technology Centre [Member]

300-600 Campus Drive Revolving Loan [Member]

300-600 Campus Drive Revolving Loan [Member]

300-600 Campus Drive Revolving Loan [Member]

300-600 Campus Drive Revolving Loan [Member]

300-600 Campus Drive Revolving Loan [Member]

Amended and Restated Portfolio Revolving Loan Facility [Member]

Amended and Restated Portfolio Revolving Loan Facility [Member]

Amended and Restated Portfolio Revolving Loan Facility [Member]

Amended and Restated Portfolio Revolving Loan Facility [Member]

One-month LIBOR [Member]

Subsequent Event [Member]

Subsequent Event [Member]

One-month LIBOR [Member]

One-month LIBOR [Member]

Subsequent Event [Member]

One-month LIBOR [Member]

Subsequent Event [Member]

One-month LIBOR [Member]

One-month LIBOR [Member]

One-month LIBOR [Member]

One-month LIBOR [Member]

One-month LIBOR [Member]

Secured Debt [Member]

One-month LIBOR [Member]

Revolving Credit Facility [Member]

Non-Revolving Credit Facility [Member]

Repayment Penalty [Member]

Principal Due [Member]

Minimum [Member]

Maximum [Member]

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Principal Balance

$1,358,401,000

$1,521,353,000

'

'

'

'

'

'

'

'

'

'

$1,358,401,000

$1,521,353,000

$92,376,000

[1]

$105,000,000

[1]

'

$345,100,000

[2]

$348,061,000

[2]

'

'

$119,300,000

[3]

$105,000,000

[3]

$105,000,000

[3]

'

$19,800,000

$19,800,000

'

$319,485,000

[4]

$341,544,000

[4]

'

'

'

$0

[5]

$16,320,000

[5]

'

$71,000,000

$71,000,000

$80,000,000

$80,000,000

'

$0

[6]

$75,628,000

[6]

'

'

$107,640,000

[7]

$141,000,000

[7]

'

'

$140,000,000

[8]

$140,000,000

[8]

'

$78,000,000

[9]

$78,000,000

[9]

'

'

$128,300,000

[1]

$145,000,000

[1]

$35,900,000

[1]

$92,400,000

[1]

Basis Spread on Variable Rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.80%

[1],[10]

'

'

'

'

'

'

'

1.75%

[10],[3]

'

'

2.25%

[10]

'

'

'

2.15%

[10],[4]

'

'

'

2.20%

[10]

'

'

'

'

1.90%

[10]

'

'

2.75%

[10],[6]

'

'

'

1.75%

[10],[7]

1.85%

[10],[7]

'

'

'

'

'

'

2.05%

[10],[9]

'

'

'

'

Contractual Interest Rate, Percentage

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4.25%

[10],[2]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3.59%

[10]

'

'

'

'

'

'

'

'

'

'

'

'

3.50%

[10],[8]

'

'

'

'

'

'

'

'

'

'

Effective Interest Rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3.10%

[1],[10]

'

'

4.30%

[10],[2]

'

'

'

'

3.50%

[10],[3]

'

'

4.60%

[10]

'

'

3.10%

[10],[4]

'

'

'

'

'

'

'

3.60%

[10]

'

2.90%

[10]

'

'

'

'

'

'

2.40%

[10],[7]

'

'

'

3.50%

[10],[8]

'

'

2.90%

[10],[9]

'

'

'

'

'

'

'

Payment Type

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'Interest Only

[1]

'

'

'

'

'

'

'

'Interest Only

[3]

'

'

'Interest Only

'

'

'Interest Only

[4]

'

'

'

'

'Interest Only

[5]

'

'

'Interest Only

'

'Interest Only

'

'

'Interest Only

[6]

'

'

'

'Interest Only

[7]

'

'

'

'

'

'

'Interest Only

[9]

'

'

'

'

'

'

'

Maturity Date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

21-Jun-17

[1],[11]

'

'

1-Aug-15

[11],[2]

'

'

'

'

15-Sep-15

[11],[3]

'

'

1-Jan-16

[11]

'

'

27-Jan-16

[11],[4]

'

'

'

'

3-Jun-15

[11],[5]

'

'

1-Aug-15

[11]

'

1-Dec-15

[11]

'

'

1-Jan-16

[11],[6]

'

'

'

1-Mar-16

[11],[7]

'

'

'

1-Apr-20

[11],[8]

'

'

1-Aug-16

[11],[9]

'

'

'

'

'

'

'

Term of credit facility

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'5 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'3 years

'

'

'

'

'

'

'3 years

'

'

'

'

'

'

'

'

Amortization schedule

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'30 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'30 years

'

'

'

'

'

'

'

'

'

'

Amount outstanding

'

'

'

'

'

'

'

'

'

'

78,000,000

[9]

'

'

'

'

'

'

'

'

'

'

'

105,000,000

[3]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unused borrowing capacity, amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

14,300,000

[3]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Borrowing capacity

'

'

71,800,000

[7]

94,000,000

[7]

107,600,000

[7]

107,600,000

[7]

141,000,000

[7]

179,400,000

[7]

235,000,000

[7]

25,000,000

[9]

'

95,000,000

[9]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

120,000,000

[9]

'

'

'

'

'

Remaining borrowing capacity

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

17,000,000

[9]

'

'

'

'

'

Extinguishment of debt

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$344,600,000

$13,700,000

'

'

'

'

'

'

'

'

'

$16,800,000

'

$53,100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

[1]

On June 4, 2014, in connection with the sale of Mountain View Corporate Center, the borrowing capacity under the Amended and Restated Portfolio Revolving Loan Facility was reduced from $145.0 million to $128.3 million. As of June 30, 2014, the Amended and Restated Portfolio Revolving Loan Facility was secured by 350 E. Plumeria Building, Pierre Laclede Center and One Main Place. As of June 30, 2014, the $92.4 million non-revolving portion had been funded, and the $35.9 million revolving portion remained available for future disbursements, subject to certain terms and conditions contained in the loan documents.

[2]

Monthly payments included principal and interest with principal payments calculated using an amortization schedule of 30 years for the balance of the loan term. On July 7, 2014, in connection with the disposition of the 300 N. LaSalle Building, the Company repaid the entire $344.6 million principal balance and all other sums due under this loan, including a repayment penalty of $13.7 million. See “– Subsequent Events – 300 N. LaSalle Building Disposition.”

[3]

On September 15, 2010, in connection with the acquisition of the Union Bank Plaza, the Company entered into a five-year mortgage loan for borrowings of up to $119.3 million secured by the Union Bank Plaza. As of June 30, 2014, $105.0 million had been disbursed to the Company with the remaining loan balance of $14.3 million available for future disbursements, subject to certain conditions set forth in the loan agreement.

[4]

As of June 30, 2014, the Portfolio Mortgage Loan #1 was secured by Horizon Tech Center, Crescent VIII, National City Tower, Granite Tower, Gateway Corporate Center, I-81 Industrial Portfolio, Two Westlake Park and Torrey Reserve West. On July 10, 2014, in connection with the disposition of Torrey Reserve West, the Company repaid $16.8 million of principal due under this loan and Torrey Reserve West was released as security from Portfolio Mortgage Loan #1. On July 25, 2014, in connection with the disposition of Two Westlake Park, the Company repaid $53.1 million of principal due under this loan and Two Westlake Park was released as security from Portfolio Mortgage Loan #1. See “– Subsequent Events – Dispositions of Real Estate Properties Subsequent to June 30, 2014 – Torrey Reserve West” and “— Two Westlake Park.”

[5]

On June 11, 2014 in connection with the disposition of 601 Tower at Carlson Center, the Company paid off the outstanding principal balance due under this loan.

[6]

On June 9, 2014, in connection with the payoff of the Pappas Commerce First Mortgage Loan, the Company repaid the outstanding principal balance due under Portfolio Mortgage Loan #2.

[7]

On March 6, 2013, the Company entered into a three-year senior secured credit facility for borrowings of up to $235.0 million, of which $141.0 million was non-revolving debt and $94.0 million was revolving debt. On June 27, 2014, in connection with the sale of Metropolitan Center, the borrowing capacity under Portfolio Mortgage Loan #3 was reduced to $179.4 million, of which $107.6 million is non-revolving debt and $71.8 million is revolving debt. As of June 30, 2014, the principal balance consisted of the $107.6 million non-revolving portion. The revolving portion of $71.8 million remains available for future disbursements, subject to certain terms and conditions contained in the loan documents. As of June 30, 2014, the Portfolio Mortgage Loan #3 was secured by the 100 & 200 Campus Drive Buildings and Willow Oaks Corporate Center.

[8]

Monthly payments are initially interest-only. Beginning on May 1, 2017, monthly payments include principal and interest with principal payments calculated using an amortization schedule of 30 years for the balance of the loan term, with the remaining principal balance, all accrued and unpaid interest and any other amounts due at maturity.

[9]

On July 10, 2013, the Company entered into a three-year senior secured credit facility for borrowings of up to $120.0 million, of which $95.0 million is non-revolving debt and $25.0 million is revolving debt. As of June 30, 2014, the principal balance consisted of $78.0 million of the non-revolving portion. The remaining non-revolving portion of $17.0 million and the revolving portion of $25.0 million remain available for future disbursements, subject to certain terms and conditions contained in the loan documents.

[10]

Contractual interest rate represents the interest rate in effect under the loan as of June 30, 2014. Effective interest rate is calculated as the actual interest rate in effect as of June 30, 2014 (consisting of the contractual interest rate and the effect of interest rate swaps and contractual floor rates, if applicable), using interest rate indices as of June 30, 2014, where applicable. For further information regarding the Company’s derivative instruments, see Note 10, “Derivative Instruments.”

[11]

Represents the initial maturity date or the maturity date as extended as of June 30, 2014; subject to certain conditions, the maturity dates of certain loans may be extended beyond the maturity date shown.

NOTES_PAYABLE_Schedule_of_Matu

NOTES PAYABLE (Schedule of Maturities of Long-Term Debt) (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Notes Payable [Abstract]	'	'
July 1, 2014 through December 31, 2014	$3,024	'
2015	598,076	'
2016	524,924	'
2017	94,157	'
2018	2,750	'
Thereafter	135,470	'
Total notes payable	$1,358,401	$1,521,353

OTHER_COMPREHENSIVE_INCOME_LOS2

OTHER COMPREHENSIVE INCOME (LOSS) (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014	Dec. 31, 2013
					Marketable Securities [Member]	Marketable Securities [Member]	Derivative [Member]	Derivative [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]	'	'	'	'	'	'	'	'
Accumulated other comprehensive income (loss) - Beginning balance	'	'	($10,313)	'	($67)	$0	($7,242)	($10,313)
Unrealized gains (losses), Derivative Instruments	549	3,234	1,728	4,539	'	'	'	'
Unrealized gains (losses), Marketable Securities	-67	0	-67	0	'	'	'	'
Unrealized gains (losses)	'	'	1,661	'	'	'	'	'
Reclassification of unrealized losses due to hedge ineffectiveness	0	0	822	0	'	'	'	'
Reclassifications of realized losses	364	277	521	357	'	'	'	'
Accumulated other comprehensive income (loss) - Ending balance	($7,309)	'	($7,309)	'	($67)	$0	($7,242)	($10,313)

DERIVATIVE_INSTRUMENTS_Details

DERIVATIVE INSTRUMENTS (Details) (USD $)

3 Months Ended

6 Months Ended

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Jun. 30, 2014

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Investments

Investments

Deferred Financing Costs, Prepaid Expenses and Other Assets [Member]

Deferred Financing Costs, Prepaid Expenses and Other Assets [Member]

Other Liabilities [Member]

Other Liabilities [Member]

One-month LIBOR [Member]

One-month LIBOR [Member]

Investments

Investments

Investments

Investments

Minimum [Member]

Maximum [Member]

Derivative [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Number of Instruments

'

'

'

'

11

[1]

16

[1]

2

2

9

14

'

'

Notional Amount

'

'

'

'

$613,513,000

[1]

$842,150,000

[1]

$15,000

$225,000

($8,120,000)

($10,260,000)

'

'

Reference Rate

'

'

'

'

'

'

'

'

'

'

0.50%

[1]

2.39%

[1]

Weighted-Average Fix Pay Rate

'

'

'

'

1.35%

[1]

'

'

'

'

'

'

'

Weighted-Average Remaining Term in Years

'

'

'

'

'1 year 9 months 12 days

[1]

'

'

'

'

'

'

'

Interest rate swap agreements, termination, breakage fees

200,000

'

200,000

'

'

'

'

'

'

'

'

'

Number of instruments terminated

'

'

'

'

2

[1]

'

'

'

'

'

'

'

Unrealized gains (losses) on derivative instruments

549,000

3,234,000

1,728,000

4,539,000

'

'

'

'

'

'

'

'

Gain (loss) recognized in OCI, effective portion

2,300,000

2,500,000

4,600,000

4,900,000

'

'

'

'

'

'

'

'

Unrealized losses due to hedge ineffectiveness

100,000

'

900,000

'

'

'

'

'

'

'

'

'

Additional unrealized losses

'

'

6,400,000

'

'

'

'

'

'

'

'

'

Reclassifications of realized losses

($364,000)

($277,000)

($521,000)

($357,000)

'

'

'

'

'

'

'

'

[1]

During the six months ended June 30, 2014, the Company terminated two interest rate swap agreements and paid an aggregate breakage fee of $0.2 million.

FAIR_VALUE_DISCLOSURES_Schedul

FAIR VALUE DISCLOSURES (Schedule of Face Value, Carrying Amounts and Fair Value) (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Real estate loan receivable, Face Value	$73,152	$184,900
Notes payable, Face Value	1,358,401	1,521,353
Carrying Amount [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Real estate loans receivable, Value	73,191	184,828
Notes payable, Value	1,358,401	1,521,353
Fair Value [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Real estate loans receivable, Value	73,820	190,485
Notes payable, Value	$1,376,631	$1,526,075

FAIR_VALUE_DISCLOSURES_Schedul1

FAIR VALUE DISCLOSURES (Schedule of Assets and Liabilities at Fair Value) (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Marketable securities	$172,935	$0
Recurring Basis [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Marketable securities	172,935	'
Assets derivatives	15	'
Liability derivatives	-8,120	'
Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Marketable securities	172,935	'
Assets derivatives	0	'
Liability derivatives	0	'
Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Marketable securities	0	'
Assets derivatives	15	'
Liability derivatives	-8,120	'
Recurring Basis [Member] | Significant Unobservable Inputs (Level 3) [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Marketable securities	0	'
Assets derivatives	0	'
Liability derivatives	$0	'

RELATED_PARTY_TRANSACTIONS_Det

RELATED PARTY TRANSACTIONS (Details) (Advisor and Dealer Manager [Member], USD $)	3 Months Ended				6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013		Dec. 31, 2013
Related Party Transaction [Line Items]	'		'		'		'		'
Incurred	$8,231		$6,026		$13,971		$13,339		'
Payable as of	0		'		0		'		0
Expensed [Member] | Asset Management Fees [Member]	'		'		'		'		'
Related Party Transaction [Line Items]	'		'		'		'		'
Expenses	5,631		5,993		11,335		11,484		'
Payable as of	0		'		0		'		0
Expensed [Member] | Reimbursement of Operating Expenses [Member]	'		'		'		'		'
Related Party Transaction [Line Items]	'		'		'		'		'
Expenses	37	[1]	33	[1]	73	[1]	58	[1]	'
Payable as of	0	[1]	'		0	[1]	'		0	[1]
Expensed [Member] | Acquisition Fees [Member]	'		'		'		'		'
Related Party Transaction [Line Items]	'		'		'		'		'
Expenses	0		0		0		1,797		'
Payable as of	0		'		0		'		0
Expensed [Member] | Dispositon Fees [Member]	'		'		'		'		'
Related Party Transaction [Line Items]	'		'		'		'		'
Expenses	2,563	[2]	0	[2]	2,563	[2]	0	[2]	'
Payable as of	$0	[2]	'		$0	[2]	'		$0	[2]
[1]	The Advisor may seek reimbursement for certain employee costs under the Advisory Agreement. The Company reimburses the Advisor for the Company’s allocable portion of the salaries, benefits and overhead of internal audit department personnel providing services to the Company. These amounts totaled $37,000 and $33,000 for the three months ended June 30, 2014 and 2013, respectively, and $73,000 and $58,000 for the six months ended June 30, 2014 and 2013, respectively, and were the only type of employee costs reimbursed under the Advisory Agreement for the three and six months ended June 30, 2014 and 2013. The Company will not reimburse for employee costs in connection with services for which the Advisor earns acquisition, origination or disposition fees (other than reimbursement of travel and communication expenses) or for the salaries or benefits the Advisor or its affiliates may pay to the Company’s executive officers.
[2]	Disposition fees with respect to real estate sold are included in the gain on sales of real estate in the accompanying consolidated statements of operations.

RELATED_PARTY_TRANSACTIONS_Nar

RELATED PARTY TRANSACTIONS (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended		0 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Jul. 07, 2014
					Subsequent Event [Member]
					300 N. Lasalle [Member]
Related Party Transaction [Line Items]	'	'	'	'	'
Administrative fees	$37,000	$33,000	$73,000	$58,000	'
Proceeds from divestiture of businesses	'	'	'	'	$850,000,000

SEGMENT_INFORMATION_Schedule_o

SEGMENT INFORMATION (Schedule of Segment Reporting Information, by Segment) (Details) (USD $)	3 Months Ended				6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013		Dec. 31, 2013		Dec. 31, 2012
					segments
Segment Reporting Information [Line Items]	'		'		'		'		'		'
Number of reportable segments	'		'		2		'		'		'
Revenues	$82,716		$93,212		$175,171		$180,099		'		'
Interest expense	15,213		16,198		29,848		31,491		'		'
Total net operating income	33,073		41,746		74,674		81,009		'		'
Assets	2,776,281		'		2,776,281		'		2,954,300		'
Liabilities	1,440,296		'		1,440,296		'		1,614,256		'
Cash and cash equivalents	167,914		103,301		167,914		103,301		175,042		48,390
Real Estate Segment [Member]	'		'		'		'		'		'
Segment Reporting Information [Line Items]	'		'		'		'		'		'
Revenues	80,641	[1]	84,802	[1]	165,132	[1]	163,427	[1]	'		'
Interest expense	14,626	[1]	14,890	[1]	28,855	[1]	28,839	[1]	'		'
Total net operating income	31,783	[1]	35,031	[1]	66,141	[1]	67,709	[1]	'		'
Assets	1,408,846		'		1,408,846		'		1,440,578		'
Liabilities	844,406		'		844,406		'		848,854		'
Real Estate-Related Segment [Member]	'		'		'		'		'		'
Segment Reporting Information [Line Items]	'		'		'		'		'		'
Revenues	1,986		8,410		9,950		16,672		'		'
Interest expense	587		1,141		993		2,272		'		'
Total net operating income	1,201		6,715		8,444		13,300		'		'
Assets	73,697		'		73,697		'		229,457		'
Liabilities	13		'		13		'		75,820		'
Operating Segments [Member]	'		'		'		'		'		'
Segment Reporting Information [Line Items]	'		'		'		'		'		'
Revenues	82,627		93,212		175,082		180,099		'		'
Interest expense	15,213		16,031		29,848		31,111		'		'
Total net operating income	32,984		41,746		74,585		81,009		'		'
Assets	1,482,543		'		1,482,543		'		1,670,035		'
Liabilities	844,419		'		844,419		'		924,674		'
Real Estate Held-for-Sale [Member]	'		'		'		'		'		'
Segment Reporting Information [Line Items]	'		'		'		'		'		'
Assets	969,359		'		969,359		'		1,181,802		'
Liabilities	584,566		'		584,566		'		678,203		'
Corporate-Level [Member]	'		'		'		'		'		'
Segment Reporting Information [Line Items]	'		'		'		'		'		'
Revenues	89		0		89		0		'		'
Interest expense	0		167		0		380		'		'
Total net operating income	89		0		89		0		'		'
Assets	324,379	[2]	'		324,379	[2]	'		102,463	[2]	'
Liabilities	11,311	[3]	'		11,311	[3]	'		11,379	[3]	'
Cash and cash equivalents	$323,900		'		$323,900		'		$102,200		'
[1]	Amounts include properties sold and properties held for sale. See Note 7, “Real Estate Held for Sale” for more information.
[2]	Total corporate-level assets consisted primarily of marketable securities and cash and cash equivalents of approximately $323.9 million as of June 30, 2014 and of cash and cash equivalents of approximately $102.2 million as of December 31, 2013.
[3]	As of June 30, 2014 and December 31, 2013, corporate-level liabilities consisted primarily of distributions payable.

SEGMENT_INFORMATION_Reconcilia

SEGMENT INFORMATION (Reconciliation of Net Income (Loss) to Net Operating Income (Loss)) (Details) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Segment Reporting Information [Line Items]	'	'	'	'	'
Net income	$59,719	$9,432	$70,146	$15,864	$55,779
Gain on sales of real estate, net	-46,647	0	-46,647	0	'
Other interest income	-21	-11	-54	-15	'
Real estate acquisition fees to affiliates	0	0	0	1,797	'
Real estate acquisition fees and expenses	0	7	0	623	'
General and administrative expenses	1,513	1,222	2,802	2,337	'
Depreciation and amortization	18,509	30,929	47,352	60,023	'
Impairment charge on real estate held for sale	0	0	1,075	0	'
Interest expense	15,213	16,198	29,848	31,491	'
Total net operating income	33,073	41,746	74,674	81,009	'
Corporate-Level [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Interest expense	0	167	0	380	'
Total net operating income	$89	$0	$89	$0	'

SUBSEQUENT_EVENTS_Details

SUBSEQUENT EVENTS (Details) (USD $)	0 Months Ended	6 Months Ended		0 Months Ended		0 Months Ended
In Millions, except Per Share data, unless otherwise specified	Feb. 04, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 19, 2011	Dec. 18, 2012	Aug. 05, 2014	Jul. 08, 2014	Aug. 05, 2014	Aug. 01, 2014	Jul. 01, 2014
				Dividend Declared [Member]	Dividend Declared [Member]	Subsequent Event [Member]	Subsequent Event [Member]	Subsequent Event [Member]	Subsequent Event [Member]	Subsequent Event [Member]
								To be Paid On or about September 23, 2014 [Member]	Dividend Paid [Member]	Dividend Paid [Member]
Subsequent Event [Line Items]	'	'	'	'	'	'	'	'	'	'
Distributions paid to common stockholders	'	'	'	'	'	'	'	'	$10.50	$10.20
Distribution rate per share per day, declared	$0.05	$0.00	$0.00	$0.00	'	'	'	'	'	'
Distribution rate per share annualized, declared, based on purchase price	'	'	'	6.50%	'	'	'	'	'	'
Purchase price per share	'	'	'	$10	$10.29	'	'	'	'	'
Distribution rate per share annualized, declared, based on current estimated value	'	'	'	6.30%	'	'	'	'	'	'
Distributions per share declared	'	'	'	'	'	$0.30	$3.75	$4.05	'	'

SUBSEQUENT_EVENTS_Dispositions

SUBSEQUENT EVENTS (Dispositions of Real Estate Properties Subsequent to June 30, 2014) (Details) (USD $)	Sep. 09, 2010	Jul. 29, 2010	Dec. 31, 2012	Feb. 25, 2011	Jul. 25, 2014	Jul. 10, 2014	Jul. 27, 2014	Jul. 27, 2014	Jul. 10, 2014	Jul. 07, 2014
	Torrey Reserve West [Member]	300 N. Lasalle [Member]	Two Westlake Park [Member]	Two Westlake Park [Member]	Subsequent Event [Member]	Subsequent Event [Member]	Subsequent Event [Member]	Subsequent Event [Member]	Subsequent Event [Member]	Subsequent Event [Member]
	sqft	acre	sqft	sqft		Torrey Reserve West [Member]	300 N. Lasalle [Member]	300 N. Lasalle [Member]	Torrey Reserve West [Member]	300 N. Lasalle [Member]
	acre	sqft		acre		Mortgages [Member]	Mortgages [Member]	Mortgages [Member]
						Principal Due [Member]		Repayment Penalty [Member]
Subsequent Event [Line Items]	'	'	'	'	'	'	'	'	'	'
Net rentable area	118,030	1,302,901	'	388,142	'	'	'	'	'	'
Area of land	7.1	1.2	'	5.4	'	'	'	'	'	'
Book value	'	'	'	'	$81,900,000	'	'	'	$21,200,000	$590,700,000
Real estate, disposed	'	'	'	'	120,000,000	'	'	'	39,200,000	850,000,000
Extinguishment of debt	'	'	'	'	'	$16,800,000	$344,600,000	$13,700,000	'	'
Additions to net rentable area	'	'	67,334	'	'	'	'	'	'	'