KBS Real Estate Investment Trust II (KBRS) 10-Q 9 May 17 2017 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2017	May 05, 2017
Document and Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q1
Entity Registrant Name	KBS Real Estate Investment Trust II, Inc.
Entity Central Index Key	1,411,059
Entity Filer Category	Non-accelerated Filer
Current Fiscal Year end	--12-31
Entity Common Stock, Shares Outstanding		188,441,202

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Real estate:
Land	$ 188,592	$ 188,592
Buildings and improvements	982,830	980,863
Tenant origination and absorption costs	63,993	64,117
Total real estate held for investment, cost	1,235,415	1,233,572
Less accumulated depreciation and amortization	(153,246)	(141,830)
Total real estate held for investment, net	1,082,169	1,091,742
Real estate held for sale, net	33,931	33,994
Total real estate, net	1,116,100	1,125,736
Real estate loan receivable, net	14,037	14,079
Total real estate and real estate-related investments, net	1,130,137	1,139,815
Cash and cash equivalents	42,490	48,009
Rents and other receivables, net	59,934	59,152
Above-market leases, net	3,880	4,466
Assets related to real estate held for sale	3,808	3,565
Due from affiliate	129	0
Prepaid expenses and other assets	34,730	31,773
Total assets	1,275,108	1,286,780
Liabilities and stockholders’ equity
Notes payable, net	522,968	523,771
Accounts payable and accrued liabilities	17,608	18,422
Due to affiliate	69	41
Distributions payable	4,397	4,493
Below-market leases, net	2,456	2,876
Liabilities related to real estate held for sale	14	17
Other liabilities	11,725	10,253
Total liabilities	559,237	559,873
Commitments and contingencies (Note 11)
Redeemable common stock	8,956	10,000
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, 188,529,845 and 188,719,952 shares issued and outstanding as of March 31, 2017 and December 31, 2016, respectively	1,885	1,887
Additional paid-in capital	1,679,526	1,679,524
Cumulative distributions in excess of net income	(974,496)	(964,504)
Total stockholders’ equity	706,915	716,907
Total liabilities and stockholders’ equity	$ 1,275,108	$ 1,286,780

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Mar. 31, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars 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 (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	1,000,000,000	1,000,000,000
Common stock, shares issued	188,529,845	188,719,952
Common stock, shares outstanding	188,529,845	188,719,952

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenues:
Rental income	$ 32,559	$ 34,997
Tenant reimbursements	3,716	3,999
Interest income from real estate loans receivable	263	268
Other operating income	1,813	1,730
Total revenues	38,351	40,994
Expenses:
Operating, maintenance, and management	8,727	8,734
Real estate taxes and insurance	4,862	5,072
Asset management fees to affiliate	2,913	2,956
General and administrative expenses	1,200	1,962
Depreciation and amortization	13,835	14,892
Interest expense	4,047	4,474
Total expenses	35,584	38,090
Other income:
Other income	11	16
Total other income	11	16
Net income	$ 2,778	$ 2,920
Net income per common share, basic and diluted (in dollars per share)	$ 0.01	$ 0.02
Weighted-average number of common shares outstanding, basic and diluted (in shares)	188,654,682	189,437,758

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 2,778	$ 2,920
Other comprehensive income:
Reclassification of realized losses recognized on interest rate swaps (effective portion)	0	34
Total other comprehensive income	0	34
Total comprehensive income	$ 2,778	$ 2,954

CONSOLIDATED STATEMENTS OF STOC

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Cumulative Distributions and Net Income (Loss) [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balance, shares at Dec. 31, 2015		189,556,185
Balance, value at Dec. 31, 2015	$ 757,930	$ 1,895	$ 1,684,206	$ (928,111)	$ (60)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	16,747			16,747
Other comprehensive income	60				60
Redemptions of common stock, shares		(836,233)
Redemptions of common stock, value	(4,690)	$ (8)	(4,682)
Distributions declared	$ (53,140)			(53,140)
Balance, shares at Dec. 31, 2016	188,719,952	188,719,952
Balance, value at Dec. 31, 2016	$ 716,907	$ 1,887	1,679,524	(964,504)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,778			2,778
Other comprehensive income	0
Redemptions of common stock, shares		(190,107)
Redemptions of common stock, value	(1,044)	$ (2)	(1,042)
Transfers from redeemable common stock	1,044		1,044
Distributions declared	$ (12,770)			(12,770)
Balance, shares at Mar. 31, 2017	188,529,845	188,529,845
Balance, value at Mar. 31, 2017	$ 706,915	$ 1,885	$ 1,679,526	$ (974,496)	$ 0

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash Flows from Operating Activities:
Net income	$ 2,778	$ 2,920
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	13,835	14,892
Noncash interest income on real estate-related investments	1	1
Deferred rent	(871)	(1,325)
Bad debt expense	160	42
Amortization of above- and below-market leases, net	163	(408)
Amortization of deferred financing costs	265	369
Unrealized (gains) losses on derivative instruments	(74)	196
Changes in operating assets and liabilities:
Rents and other receivables	(771)	(2,927)
Prepaid expenses and other assets	(3,819)	(3,393)
Accounts payable and accrued liabilities	(714)	1,066
Due from affiliates	(129)	(181)
Due to affiliates	28	(9)
Other liabilities	1,552	994
Net cash provided by operating activities	12,404	12,237
Cash Flows from Investing Activities:
Improvements to real estate	(2,986)	(10,176)
Principal repayments on real estate loans receivable	41	35
Net cash used in investing activities	(2,945)	(10,141)
Cash Flows from Financing Activities:
Principal payments on notes payable	(757)	0
Payments of deferred financing costs	(311)	(170)
Payments to redeem common stock	(1,044)	(1,684)
Distributions paid to common stockholders	(12,866)	(13,453)
Net cash used in financing activities	(14,978)	(15,307)
Net decrease in cash and cash equivalents	(5,519)	(13,211)
Cash and cash equivalents, beginning of period	48,009	72,793
Cash and cash equivalents, end of period	42,490	59,582
Supplemental Disclosure of Cash Flow Information:
Interest paid	3,808	4,044
Supplemental Disclosure of Noncash Transactions:
Increase in accrued improvements to real estate	$ 222	$ 1,706

ORGANIZATION

ORGANIZATION	3 Months Ended
	Mar. 31, 2017
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 invested in a diverse portfolio of real estate and real estate-related investments. As of March 31, 2017 , the Company owned 11 real estate properties (consisting of 10 office properties ( one of which was held for sale) and an office campus consisting of eight office buildings). In addition, as of March 31, 2017 , the Company owned one real estate loan receivable. 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, 2016 (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. 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 . The Company sold 30,903,504 shares of common stock under its dividend reinvestment plan for gross offering proceeds of $298.2 million . Also as of March 31, 2017 , the Company had redeemed 25,075,292 shares sold in the Offering for $241.1 million .

SUMMARY OF SIGNIFICANT ACCOUNTI

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	3 Months Ended
	Mar. 31, 2017
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 since it filed its audited financial statements in its Annual Report on Form 10-K for the year ended December 31, 2016 . 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, 2016 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 three months ended March 31, 2017 are not necessarily indicative of the results that may be expected for the year ending December 31, 2017. 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 condensed notes. Actual results could materially differ from those estimates. 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 three months ended March 31, 2017 and 2016 , respectively. Distributions declared per common share were $0.068 and $0.070 in the aggregate for the three months ended March 31, 2017 and 2016 , respectively. Distributions declared per common share assumes each share was issued and outstanding each day that was a record date for distributions and were based on a monthly record date for each month during the periods commencing January 2017 through March 2017 and January 2016 through March 2016 . Segments The Company invested in core real estate properties and real estate-related investments with the goal of acquiring a portfolio of income-producing investments. The Company’s real estate properties exhibit similar long-term financial performance and have similar economic characteristics to each other. Beginning with the reporting period commencing on January 1, 2016, the Company aggregated its investments in real estate properties into one reportable business segment. The Company considered both quantitative and qualitative thresholds and determined that its investment in a real estate loan receivable does not constitute a reportable segment. Prior to the reporting period commencing on January 1, 2016, the Company had identified two reportable business segments based on its investment types: real estate and real estate-related. However, based on the Company’s current investment portfolio, the Company does not believe that its investment in a real estate-related investment is a reportable segment. Square Footage, Occupancy and Other Measures Any references to square footage, occupancy or annualized base rent are unaudited and outside the scope of the Company’s independent registered public accounting firm’s review of the Company’s financial statements in accordance with the standards of the United States Public Company Accounting Oversight Board. Recently Issued Accounting Standards Update 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 was to be 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. In August 2015, the FASB issued ASU No. 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date (“ASU No. 2015-14”), which defers the effective date of ASU No. 2014-09 by one year. Early adoption is permitted but not before the original effective date. As the primary source of revenue for the Company is generated through leasing arrangements, which are scoped out of this standard, the Company does not expect the adoption of ASU No. 2014-09 to have a significant impact on its financial statements. In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities (“ASU No. 2016-01”). The amendments in ASU No. 2016-01 address certain aspects of recognition, measurement, presentation and disclosure of financial instruments. ASU No. 2016-01 primarily affects accounting for equity investments and financial liabilities where the fair value option has been elected. ASU No. 2016-01 also requires entities to present financial assets and financial liabilities separately, grouped by measurement category and form of financial asset in the balance sheet or in the accompanying notes to the financial statements. ASU No. 2016-01 is effective for annual periods beginning after December 15, 2017, including interim periods within those fiscal years. Early application is permitted for financial statements that have not been previously issued. The Company does not expect the adoption of ASU No. 2016-01 to have a significant impact on its financial statements. In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) (“ASU No. 2016-02”). The amendments in ASU No. 2016-02 change the existing accounting standards for lease accounting, including requiring lessees to recognize most leases on their balance sheets and making targeted changes to lessor accounting. ASU No. 2016-02 is effective for annual periods beginning after December 15, 2018, including interim periods within those fiscal years. Early adoption of ASU No. 2016-02 as of its issuance is permitted. The new leases standard requires a modified retrospective transition approach for all leases existing at, or entered into after, the date of initial application, with an option to use certain transition relief. The Company is currently evaluating the impact of adopting the new leases standard on its consolidated financial statements. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses of Financial Instruments (“ASU No. 2016-13”). ASU No. 2016-13 affects entities holding financial assets and net investments in leases that are not accounted for at fair value through net income. The amendments in ASU No. 2016-13 require a financial asset (or a group of financial assets) measured at amortized cost basis to be presented at the net amount expected to be collected. The allowance for credit losses is a valuation account that is deducted from the amortized cost basis of the financial asset(s) to present the net carrying value at the amount expected to be collected on the financial asset. ASU No. 2016-13 also amends the impairment model for available-for-sale securities. An entity will recognize an allowance for credit losses on available-for-sale debt securities as a contra-account to the amortized cost basis rather than as a direct reduction of the amortized cost basis of the investment, as is currently required. ASU No. 2016-13 also requires new disclosures. For financial assets measured at amortized cost, an entity will be required to disclose information about how it developed its allowance for credit losses, including changes in the factors that influenced management’s estimate of expected credit losses and the reasons for those changes. For financing receivables and net investments in leases measured at amortized cost, an entity will be required to further disaggregate the information it currently discloses about the credit quality of these assets by year of the asset’s origination for as many as five annual periods. For available for sale securities, an entity will be required to provide a roll-forward of the allowance for credit losses and an aging analysis for securities that are past due. ASU No. 2016-13 is effective for annual periods beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. The Company is still evaluating the impact of adopting ASU No. 2016-13 on its financial statements, but does not expect the adoption of ASU No. 2016-13 to have a material impact on its financial statements. In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments (“ASU No. 2016-15”). ASU No. 2016-15 is intended to reduce diversity in practice in how certain transactions are classified in the statement of cash flows. The amendments in ASU No. 2016-15 provide guidance on eight specific cash flow issues, including the following that are or may be relevant to the Company: (a) Cash payments for debt prepayment or debt extinguishment costs should be classified as cash outflows for financing activities; (b) Cash payments relating to contingent consideration made soon after an acquisition’s consummation date (i.e., approximately three months or less) should be classified as cash outflows for investing activities. Payments made thereafter should be classified as cash outflows for financing activities up to the amount of the original contingent consideration liability. Payments made in excess of the amount of the original contingent consideration liability should be classified as cash outflows for operating activities; (c) Cash payments received from the settlement of insurance claims should be classified on the basis of the nature of the loss (or each component loss, if an entity receives a lump-sum settlement); (d) In the absence of specific guidance, an entity should classify each separately identifiable cash source and use on the basis of the nature of the underlying cash flows. For cash flows with aspects of more than one class that cannot be separated, the classification should be based on the activity that is likely to be the predominant source or use of cash flow. ASU No. 2016-15 is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. The Company is still evaluating the impact of adopting ASU No. 2016-15 on its financial statements, but does not expect the adoption of ASU No. 2016-15 to have a material impact to its financial statements. In November 2016, the FASB issued ASU No. 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash (“ASU No. 2016-18”). ASU No. 2016-18 requires that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, restricted cash and restricted cash equivalents. Therefore, amounts generally described as restricted cash should be included with cash and cash equivalents when reconciling the beginning of period and end of period total amounts shown on the statement of cash flows. ASU No. 2016-18 is effective for annual periods beginning after December 15, 2017, including interim periods within those fiscal years. The Company elected to early adopt ASU No. 2016-18 for the reporting period ended December 31, 2016 and it was applied retrospectively. As a result of the adoption of ASU No. 2016-18, the Company no longer presents the changes within restricted cash in the consolidated statements of cash flows.

REAL ESTATE HELD FOR INVESTMENT

REAL ESTATE HELD FOR INVESTMENT	3 Months Ended
	Mar. 31, 2017
Real Estate [Abstract]
REAL ESTATE HELD FOR INVESTMENT	REAL ESTATE HELD FOR INVESTMENT As of March 31, 2017 , the Company’s portfolio of real estate held for investment was composed of nine office properties and an office campus consisting of eight office buildings, encompassing in the aggregate approximately 4.9 million rentable square feet. As of March 31, 2017 , the Company’s real estate portfolio was 85% occupied. The following table summarizes the Company’s real estate portfolio as of March 31, 2017 (in thousands): Property Date Acquired City State Property Type Total Real Estate at Cost (1) Accumulated Depreciation and Amortization (1) Total Real Estate, Net (1) 100 & 200 Campus Drive Buildings 09/09/2008 Florham Park NJ Office $ 140,486 $ (7,304 ) $ 133,182 300-600 Campus Drive Buildings 10/10/2008 Florham Park NJ Office 161,637 (11,929 ) 149,708 Willow Oaks Corporate Center 08/26/2009 Fairfax VA Office 103,365 (16,345 ) 87,020 Pierre Laclede Center 02/04/2010 Clayton MO Office 78,888 (8,099 ) 70,789 Horizon Tech Center 06/17/2010 San Diego CA Office 29,540 (1,687 ) 27,853 Union Bank Plaza 09/15/2010 Los Angeles CA Office 187,470 (17,703 ) 169,767 Emerald View at Vista Center 12/09/2010 West Palm Beach FL Office 31,038 (6,220 ) 24,818 Granite Tower 12/16/2010 Denver CO Office 154,310 (39,235 ) 115,075 Fountainhead Plaza 09/13/2011 Tempe AZ Office 119,383 (13,678 ) 105,705 Corporate Technology Centre 03/28/2013 San Jose CA Office 229,298 (31,046 ) 198,252 $ 1,235,415 $ (153,246 ) $ 1,082,169 _____________________ (1) Amounts presented are net of impairment charges. As of March 31, 2017 , the following properties represented more than 10% of the Company’s total assets: Property Location Rentable Square Feet Total Real Estate, Net (in thousands) Percentage of Total Assets Annualized Base Rent (in thousands) (1) Average Annualized Base Rent per Sq. Ft. Occupancy Corporate Technology Centre San Jose, CA 610,083 $ 198,252 15.5 % $ 18,537 $ 30.38 100 % Union Bank Plaza Los Angeles, CA 627,334 169,767 13.3 % 21,891 40.38 86 % 300-600 Campus Drive Buildings Florham Park, NJ 578,402 149,708 11.7 % 17,400 31.07 97 % 100 & 200 Campus Drive Buildings Florham Park, NJ 586,405 133,182 10.4 % 11,747 31.35 64 % _____________________ (1) Annualized base rent represents annualized contractual base rental income as of March 31, 2017 , 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. Operating Leases The Company’s real estate properties are leased to tenants under operating leases for which the terms and expirations vary. As of March 31, 2017 , the leases had remaining terms, excluding options to extend, of up to 14.6 years with a weighted-average remaining term of 5.2 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 $2.4 million and $2.5 million as of March 31, 2017 and December 31, 2016 , respectively. During the three months ended March 31, 2017 and 2016 , the Company recognized deferred rent from tenants, net of lease incentive amortization, of $0.9 million and $1.3 million , respectively. As of March 31, 2017 and December 31, 2016 , the cumulative deferred rent balance was $58.6 million and $57.9 million , respectively, and is included in rents and other receivables on the accompanying balance sheets. The cumulative deferred rent balance included $10.3 million and $10.9 million of unamortized lease incentives as of March 31, 2017 and December 31, 2016 , respectively. As of March 31, 2017 , the future minimum rental income from the Company’s properties under non-cancelable operating leases was as follows (in thousands): April 1, 2017 through December 31, 2017 $ 93,946 2018 119,595 2019 105,838 2020 99,381 2021 86,099 Thereafter 264,558 $ 769,417 As of March 31, 2017 , the Company had approximately 190 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 Base Rent (1) (in thousands) Percentage of Annualized Base Rent Finance 33 $ 29,287 23.1 % Computer System Design & Programming 7 19,230 15.2 % Mining, Oil & Gas Extraction 5 16,939 13.3 % Legal Services 34 14,908 11.7 % $ 80,364 63.3 % _____________________ (1) Annualized base rent represents annualized contractual base rental income as of March 31, 2017 , 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. The Company had not identified any material tenant credit issues as of March 31, 2017 . During the three months ended March 31, 2017 and 2016 , the Company recorded bad debt expense of $0.2 million and $42,000 , respectively. As of March 31, 2017 , the Company had a bad debt expense reserve of approximately $0.5 million , which represented less than 1% of its annualized base rent. As of March 31, 2017 , the Company had a concentration of credit risk related to the following tenant lease that represented more than 10% of the Company’s annualized base rent: Annualized Base Rent Statistics Tenant Property Tenant Industry Square Feet % of Portfolio (Net Rentable Sq. Ft.) Annualized Base Rent (in thousands) (1) % of Portfolio Annualized Base Rent Annualized Base Rent per Sq. Ft. Lease Expiration (2) (3) Union Bank Union Bank Plaza Finance 374,658 9.0% $ 15,591 12.3% $ 41.61 04/30/2017 / 01/31/2022 _____________________ (1) Annualized base rent represents annualized contractual base rental income as of March 31, 2017 , 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) Represents the expiration date of the leases as of March 31, 2017 and does not take into account any tenant renewal or termination options. (3) Of the 374,658 rentable square feet occupied by the tenant, a total of 31,946 rentable square feet expired on April 30, 2017. With respect to the lease that expires on January 31, 2022, Union Bank has two options to extend the term of this lease for three, four, five, six or seven years per option term, provided that the combined renewal option terms do not exceed 10 years. If Union Bank elects to exercise its extension options, it must extend the lease on (i) the entire office premise or (ii) no less than 200,000 rentable square feet consisting of full floors only plus either all or none of both the retail and vault space. No other tenant accounted for more than 10% of annualized base rent. Geographic Concentration Risk As of March 31, 2017 , the Company’s net investments in real estate in California and New Jersey represented 31.0% and 22.2% 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.

TENANT ORIGINATION AND ABSORPTI

TENANT ORIGINATION AND ABSORPTION COSTS, ABOVE-MARKET LEASE ASSETS AND BELOW-MARKET LEASE LIABILITIES	3 Months Ended
	Mar. 31, 2017
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 March 31, 2017 and December 31, 2016 , 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 Absorption Costs Above-Market Lease Assets Below-Market Lease Liabilities March 31, December 31, March 31, December 31, March 31, December 31, Cost $ 63,993 $ 64,117 $ 13,740 $ 13,740 $ (11,200 ) $ (11,249 ) Accumulated amortization (35,986 ) (33,577 ) (9,860 ) (9,274 ) 8,744 8,373 Net amount $ 28,007 $ 30,540 $ 3,880 $ 4,466 $ (2,456 ) $ (2,876 ) 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 months ended March 31, 2017 and 2016 were as follows (in thousands): Tenant Origination and Absorption Costs Above-Market Lease Assets Below-Market Lease Liabilities For the Three Months Ended March 31, For the Three Months Ended March 31, For the Three Months Ended March 31, 2017 2016 2017 2016 2017 2016 Amortization $ (2,561 ) $ (3,437 ) $ (586 ) $ (628 ) $ 423 $ 1,036

REAL ESTATE LOAN RECEIVABLE

REAL ESTATE LOAN RECEIVABLE	3 Months Ended
	Mar. 31, 2017
Receivables [Abstract]
REAL ESTATE LOANS RECEIVABLE	REAL ESTATE LOAN RECEIVABLE As of March 31, 2017 and December 31, 2016 , the Company, through an indirect wholly owned subsidiary, had originated the following real estate loan receivable (dollars in thousands): Loan Name Location of Related Property or Collateral Date Acquired/ Originated Property Type Loan Type Outstanding Principal Balance as of March 31, 2017 (1) Book Value as of March 31, 2017 (2) Book Value as of December 31, 2016 (2) Contractual Interest Rate (3) Annualized Effective Interest Rate (3) Maturity Date Sheraton Charlotte Airport Hotel First Mortgage Charlotte, North Carolina 07/11/2011 Hotel Mortgage $ 14,033 $ 14,037 $ 14,079 7.5% 7.6% 08/01/2018 _____________________ (1) Outstanding principal balance as of March 31, 2017 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 2017, using the interest method, annualized and divided by the average amortized cost basis of the investment during 2017. The contractual interest rate and annualized effective interest rate presented are as of March 31, 2017 . The following summarizes the activity related to the real estate loan receivable for the three months ended March 31, 2017 (in thousands): Real estate loan receivable - December 31, 2016 $ 14,079 Principal repayments received on the real estate loan receivable (41 ) Amortization of closing costs and origination fees on the real estate loan receivable (1 ) Real estate loan receivable - March 31, 2017 $ 14,037 For the three months ended March 31, 2017 and 2016 , interest income from the real estate loan receivable consisted of the following (in thousands): Three Months Ended March 31, 2017 2016 Contractual interest income $ 264 $ 269 Amortization of closing costs and origination fees (1 ) (1 ) Interest income from real estate loan receivable $ 263 $ 268 As of March 31, 2017 and December 31, 2016 , the borrower under the Company’s real estate loan receivable was current on its debt obligations.

REAL ESTATE HELD FOR SALE

REAL ESTATE HELD FOR SALE	3 Months Ended
	Mar. 31, 2017
Discontinued Operations and Disposal Groups [Abstract]
REAL ESTATE SALES	REAL ESTATE HELD FOR SALE In accordance with 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”), results of operations from 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. Results of operations from properties that were classified as held for sale in financial statements issued prior to January 1, 2014 will remain in discontinued operations on the Company’s consolidated statements of operations. Prior to the adoption of ASU No. 2014-08, the results of operations of properties held for sale or to be disposed of and the aggregate net gains recognized upon their disposition were presented as discontinued operations in the accompanying consolidated statements of operations for all periods presented. During the three months ended March 31, 2017 , the Company classified one office property as held for sale. During the year ended December 31, 2016 , the Company disposed of one office/flex property. The results of operations for the property sold during the year ended December 31, 2016 and the property held for sale as of March 31, 2017 are included in continuing operations on the Company’s consolidated statements of operations. The following table summarizes certain revenue and expenses related to these properties (in thousands): Three Months Ended March 31, 2017 2016 Revenues Rental income $ 1,316 $ 2,088 Tenant reimbursements 23 248 Total revenues 1,339 2,336 Expenses Operating, maintenance, and management 316 418 Real estate taxes and insurance 181 336 Asset management fees to affiliate 93 161 General and administrative expenses 50 77 Depreciation and amortization 157 839 Interest expense 88 300 Total expenses $ 885 $ 2,131 The following summary presents the major components of assets and liabilities related to real estate held for sale as of March 31, 2017 and December 31, 2016 (in thousands): March 31, 2017 December 31, 2016 Assets related to real estate held for sale Total real estate, at cost $ 42,354 $ 42,276 Accumulated depreciation and amortization (8,423 ) (8,282 ) Real estate held for sale, net 33,931 33,994 Other assets 3,808 3,565 Total assets related to real estate held for sale $ 37,739 $ 37,559 Liabilities related to real estate held for sale Other liabilities 14 17 Total liabilities related to real estate held for sale $ 14 $ 17

NOTES PAYABLE

NOTES PAYABLE	3 Months Ended
	Mar. 31, 2017
Notes Payable [Abstract]
NOTES PAYABLE	NOTES PAYABLE As of March 31, 2017 and December 31, 2016 , the Company’s notes payable, including notes payable related to real estate held for sale, consisted of the following (dollars in thousands): Book Value as of March 31, 2017 Book Value as of December 31, 2016 Contractual Interest Rate as of March 31, 2017 (1) Effective Interest Rate as of March 31, 2017 (1) Payment Type Maturity Date (2) Amended and Restated Portfolio Revolving Loan Facility (3) $ 52,638 $ 52,638 One-month LIBOR + 1.80% 3.1% Interest Only 06/21/2017 Union Bank Plaza Mortgage Loan (4) 105,000 105,000 One-month LIBOR + 1.65% 2.4% Interest Only 09/15/2017 Portfolio Mortgage Loan #1 (5) 77,651 78,033 One-month LIBOR + 2.15% 2.9% Interest Only 04/20/2017 Portfolio Mortgage Loan #3 (6) 54,000 54,000 One-month LIBOR + 2.5% Interest Only 03/01/2018 Corporate Technology Centre Mortgage Loan (7) 140,000 140,000 3.50% 3.5% (7) 04/01/2020 300-600 Campus Drive Revolving Loan (8) 94,250 94,625 One-month LIBOR + 2.05% 2.9% (8) 08/01/2017 Total notes payable principal outstanding $ 523,539 $ 524,296 Deferred financing costs, net (571 ) (525 ) Total notes payable, net $ 522,968 $ 523,771 _____________________ (1) Contractual interest rate represents the interest rate in effect under the loan as of March 31, 2017 . Effective interest rate is calculated as the actual interest rate in effect as of March 31, 2017 (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 March 31, 2017 , where applicable. For further information regarding the Company’s derivative instruments, see Note 8, “Derivative Instruments.” (2) Represents the initial maturity date or the maturity date as extended as of March 31, 2017 ; subject to certain conditions, the maturity dates of certain loans may be extended beyond the maturity date shown. (3) As of March 31, 2017 , the Amended and Restated Portfolio Revolving Loan Facility was secured by Pierre Laclede Center. (4) On March 17, 2017, the Company extended the maturity date of the Union Bank Plaza Mortgage Loan to September 15, 2017. As of March 31, 2017 , $105.0 million of the Union Bank Plaza Mortgage Loan 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. (5) On March 20, 2017, the Company extended the maturity date of Portfolio Mortgage Loan #1 to April 20, 2017. In addition, the lender of Portfolio Mortgage Loan #1 released Gateway Corporate Center as a collateral for this loan. As of March 31, 2017 , Portfolio Mortgage Loan #1 was secured by Horizon Tech Center and Granite Tower. Subsequent to March 31, 2017 , the Company is in negotiations with the lender to extend the maturity date of Portfolio Mortgage Loan #1 and the lender has issued a letter agreement to the Company, stating that the Company is not in default under the loan. (6) On March 1, 2017, the Company exercised its second extension option with the lender to extend the maturity date of Portfolio Mortgage Loan #3 to March 1, 2018 and reduced the loan commitment amount to $54.0 million . As of March 31, 2017 , the principal balance under Portfolio Mortgage Loan #3 consisted of the $32.4 million non-revolving portion and $21.6 million revolving portion. As of March 31, 2017 , Portfolio Mortgage Loan #3 was secured by the 100 & 200 Campus Drive Buildings and Willow Oaks Corporate Center. (7) Monthly payments are initially interest-only. Beginning on May 1, 2017 , monthly payments for the Corporate Technology Centre Mortgage Loan 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. (8) As of March 31, 2017 , the principal balance of the 300-600 Campus Drive Revolving Loan consisted of the $94.3 million non-revolving portion. The revolving portion of $25.0 million remained available for future disbursements, subject to certain terms and conditions contained in the loan documents. On the first day of each calendar quarter, commencing on October 1, 2016, and each succeeding January 1, April 1, July 1 and October 1 thereafter, the Company repays principal outstanding under the 300-600 Campus Drive Revolving Loan in equal installments of $375,000 . Subsequent to March 31, 2017 , the Company exercised its extension option with the lender to extend the maturity date of 300-600 Campus Drive Revolving Loan to August 1, 2018. During the three months ended March 31, 2017 and 2016 , the Company incurred $4.0 million and $4.5 million of interest expense, respectively. As of March 31, 2017 and December 31, 2016 , $1.3 million and $1.3 million , respectively, of interest expense were payable. Included in interest expense for the three months ended March 31, 2017 and 2016 were $0.3 million and $0.4 million of amortization of deferred financing costs, respectively. As a result of unrealized gains on the Company’s interest rate swap agreements for the three months ended March 31, 2017 , interest expense was reduced by $11,000 . Interest expense incurred as a result of the Company’s interest rate swap agreements for the three months ended March 31, 2016 was $0.5 million . The following is a schedule of maturities, including principal amortization payments, for all notes payable outstanding as of March 31, 2017 (in thousands): April 1, 2017 through December 31, 2017 $ 331,320 2018 56,750 2019 2,848 2020 132,621 $ 523,539 The Company plans to exercise its extension options available under its loan agreements, if applicable, or pay off or refinance the related notes payable prior to their maturity dates. Certain of the Company’s notes payable contain financial debt covenants. As of March 31, 2017 , the Company was in compliance with these debt covenants.

DERIVATIVE INSTRUMENTS

DERIVATIVE INSTRUMENTS	3 Months Ended
	Mar. 31, 2017
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 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. The following table summarizes the notional amount and other information related to the Company’s interest rate swaps as of March 31, 2017 and December 31, 2016 . The notional amount 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): Derivative Instruments March 31, 2017 December 31, 2016 Reference Rate as of March 31, 2017 Fix Pay Rate Remaining Term in Years Number of Instruments Notional Amount Number of Instruments Notional Amount Interest Rate Swaps (1) 1 $52,638 3 $106,638 One-month LIBOR/ 1.30% 0.3 _____________________ (1) During the three months ended March 31, 2017 , two of the Company’s interest rate swaps expired. As of March 31, 2017 and December 31, 2016 , none of the Company’s interest rate swaps were designated as cash flow hedges. 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 March 31, 2017 and December 31, 2016 (dollars in thousands): Derivative Instruments Balance Sheet Location March 31, 2017 December 31, 2016 Number of Instruments Fair Value Number of Instruments Fair Value Interest Rate Swaps Prepaid expenses and other assets, at fair value — $ — 2 $ 6 Interest Rate Swaps Other liabilities, at fair value 1 $ (27 ) 1 $ (107 ) 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. Amounts in other comprehensive income (loss) will be reclassified into earnings in the periods in which earnings are affected by the hedged cash flow. The change in fair value of the ineffective portion is recognized directly in earnings. 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 is reclassified into earnings over the period of the original forecasted hedged transaction. The change in fair value of a derivative instrument that is not designated as a cash flow hedge is recorded as interest expense in the accompanying consolidated statements of operations. The following table summarizes the effects of derivative instruments on the Company’s consolidated statements of operations (in thousands): For the Three Months Ended March 31, 2017 2016 Derivatives designated as hedging instruments (1) Amount of loss recognized on interest rate swaps (effective portion) $ — $ 34 — 34 Derivatives not designated as hedging instruments Realized loss recognized on interest rate swaps 63 268 Unrealized (gains) losses on interest rate swaps (74 ) 196 Losses related to swap terminations — 2 (11 ) 466 (Decrease) increase in interest expense as a result of derivatives $ (11 ) $ 500 _____________________ (1) All of the Company’s interest rate swap agreements were initially designated as cash flow hedges. During 2014, the Company dedesignated all of its interest rate swap instruments due to the anticipated early repayment of debt in connection with asset sales, and therefore, certain hedged forecasted transactions were no longer probable beyond the projected asset sale date.

FAIR VALUE DISCLOSURES

FAIR VALUE DISCLOSURES	3 Months Ended
	Mar. 31, 2017
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 non-financial and financial assets 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 loan receivable: The Company’s real estate loan receivable is presented in the accompanying consolidated balance sheets at its amortized cost net of recorded loan loss reserves (if applicable) and not at fair value. The fair value of the real estate loan receivable was estimated using an internal valuation model that considered the expected cash flows for the loan, underlying collateral value (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. 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 loan receivable and notes payable as of March 31, 2017 and December 31, 2016 , which carrying amounts do not generally approximate the fair values (in thousands): March 31, 2017 December 31, 2016 Face Value Carrying Amount Fair Value Face Value Carrying Amount Fair Value Financial assets: Real estate loan receivable $ 14,033 $ 14,037 $ 14,043 $ 14,073 $ 14,079 $ 14,089 Financial liabilities: Notes payable $ 523,539 $ 522,968 $ 521,056 $ 524,296 $ 523,771 $ 522,296 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. Low levels of transaction volume for certain financial instruments have 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. As of March 31, 2017 , the Company measured the following liabilities at fair value (in thousands): Fair Value Measurements Using Total Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Recurring Basis: Liability derivatives $ 27 $ — $ 27 $ —

RELATED PARTY TRANSACTIONS

RELATED PARTY TRANSACTIONS	3 Months Ended
	Mar. 31, 2017
Related Party Transactions [Abstract]
RELATED PARTY TRANSACTIONS	RELATED PARTY TRANSACTIONS The Company has entered into the Advisory Agreement with the Advisor. This agreement entitles the Advisor to specified fees upon the provision of certain services with regard to the management of the Company’s 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., KBS Strategic Opportunity REIT II, Inc. and KBS Growth & Income REIT, 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. In June 2015, KBS Growth & Income REIT, Inc. was added to the insurance program at terms similar to those described above. The Company has renewed its participation in the program, and the program is effective through June 30, 2017. During the three months ended March 31, 2017 and 2016 , 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., KBS Strategic Opportunity REIT II, Inc. and KBS Growth & Income REIT, Inc. Pursuant to the terms of these agreements, summarized below are the related-party costs incurred by the Company for the three months ended March 31, 2017 and 2016 , respectively, and any related amounts payable as of March 31, 2017 and December 31, 2016 (in thousands): Incurred Payable as of Three Months Ended March 31, March 31, December 31, 2017 2016 2017 2016 Expensed Asset management fees $ 2,913 $ 2,956 $ — $ — Reimbursement of operating expenses (1) 69 69 69 41 $ 2,982 $ 3,025 $ 69 $ 41 _____________________ (1) Reimbursable operating expenses primarily consists of internal audit personnel costs, accounting software and cybersecurity related expenses incurred by the Advisor under the Advisory Agreement. The Company has reimbursed 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 $49,000 and $49,000 for the three months ended March 31, 2017 and 2016 , respectively, and were the only type of employee costs reimbursed under the Advisory Agreement for the three months ended March 31, 2017 and 2016 . 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. In addition to the amounts above, the Company reimburses the Advisor for certain of the Company’s direct costs incurred from third parties that were initially paid by the Advisor on behalf of the Company. During the three months ended March 31, 2017 , the Company had a $0.1 million property insurance rebate due from the Advisor.

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	3 Months Ended
	Mar. 31, 2017
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 March 31, 2017 . 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	3 Months Ended
	Mar. 31, 2017
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 April 3, 2017, the Company paid distributions of $4.4 million , which related to distributions declared for March 2017 in the amount of $0.02331370 per share of common stock to stockholders of record as of the close of business on March 20, 2017. On May 1, 2017, the Company paid distributions of $4.3 million , which related to distributions declared for April 2017 in the amount of $0.02256164 per share of common stock to stockholders of record as of the close of business on April 20, 2017. Distributions Declared On May 8, 2017, the Company’s board of directors declared a May 2017 distribution in the amount of $0.02331370 per share of common stock to stockholders of record as of the close of business on May 19, 2017, which the Company expects to pay in June 2017, and a June 2017 distribution in the amount of $0.02256164 per share of common stock to stockholders of record as of the close of business on June 20, 2017, which the Company expects to pay in July 2017.

SUMMARY OF SIGNIFICANT ACCOUN20

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	3 Months Ended
	Mar. 31, 2017
Accounting Policies [Abstract]
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 three months ended March 31, 2017 are not necessarily indicative of the results that may be expected for the year ending December 31, 2017.
Principles of Consolidation	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 condensed notes. Actual results could materially differ from those estimates.
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 three months ended March 31, 2017 and 2016 , respectively. Distributions declared per common share were $0.068 and $0.070 in the aggregate for the three months ended March 31, 2017 and 2016 , respectively. Distributions declared per common share assumes each share was issued and outstanding each day that was a record date for distributions and were based on a monthly record date for each month during the periods commencing January 2017 through March 2017 and January 2016 through March 2016 .
Segments	The Company invested in core real estate properties and real estate-related investments with the goal of acquiring a portfolio of income-producing investments. The Company’s real estate properties exhibit similar long-term financial performance and have similar economic characteristics to each other. Beginning with the reporting period commencing on January 1, 2016, the Company aggregated its investments in real estate properties into one reportable business segment. The Company considered both quantitative and qualitative thresholds and determined that its investment in a real estate loan receivable does not constitute a reportable segment. Prior to the reporting period commencing on January 1, 2016, the Company had identified two reportable business segments based on its investment types: real estate and real estate-related. However, based on the Company’s current investment portfolio, the Company does not believe that its investment in a real estate-related investment is a reportable segment.
Square Footage, Occupancy and Other Measures	Any references to square footage, occupancy or annualized base rent are unaudited and outside the scope of the Company’s independent registered public accounting firm’s review of the Company’s financial statements in accordance with the standards of the United States Public Company Accounting Oversight Board.
Recently Issued Accounting Standards Update	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 was to be 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. In August 2015, the FASB issued ASU No. 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date (“ASU No. 2015-14”), which defers the effective date of ASU No. 2014-09 by one year. Early adoption is permitted but not before the original effective date. As the primary source of revenue for the Company is generated through leasing arrangements, which are scoped out of this standard, the Company does not expect the adoption of ASU No. 2014-09 to have a significant impact on its financial statements. In January 2016, the FASB issued ASU No. 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities (“ASU No. 2016-01”). The amendments in ASU No. 2016-01 address certain aspects of recognition, measurement, presentation and disclosure of financial instruments. ASU No. 2016-01 primarily affects accounting for equity investments and financial liabilities where the fair value option has been elected. ASU No. 2016-01 also requires entities to present financial assets and financial liabilities separately, grouped by measurement category and form of financial asset in the balance sheet or in the accompanying notes to the financial statements. ASU No. 2016-01 is effective for annual periods beginning after December 15, 2017, including interim periods within those fiscal years. Early application is permitted for financial statements that have not been previously issued. The Company does not expect the adoption of ASU No. 2016-01 to have a significant impact on its financial statements. In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) (“ASU No. 2016-02”). The amendments in ASU No. 2016-02 change the existing accounting standards for lease accounting, including requiring lessees to recognize most leases on their balance sheets and making targeted changes to lessor accounting. ASU No. 2016-02 is effective for annual periods beginning after December 15, 2018, including interim periods within those fiscal years. Early adoption of ASU No. 2016-02 as of its issuance is permitted. The new leases standard requires a modified retrospective transition approach for all leases existing at, or entered into after, the date of initial application, with an option to use certain transition relief. The Company is currently evaluating the impact of adopting the new leases standard on its consolidated financial statements. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses of Financial Instruments (“ASU No. 2016-13”). ASU No. 2016-13 affects entities holding financial assets and net investments in leases that are not accounted for at fair value through net income. The amendments in ASU No. 2016-13 require a financial asset (or a group of financial assets) measured at amortized cost basis to be presented at the net amount expected to be collected. The allowance for credit losses is a valuation account that is deducted from the amortized cost basis of the financial asset(s) to present the net carrying value at the amount expected to be collected on the financial asset. ASU No. 2016-13 also amends the impairment model for available-for-sale securities. An entity will recognize an allowance for credit losses on available-for-sale debt securities as a contra-account to the amortized cost basis rather than as a direct reduction of the amortized cost basis of the investment, as is currently required. ASU No. 2016-13 also requires new disclosures. For financial assets measured at amortized cost, an entity will be required to disclose information about how it developed its allowance for credit losses, including changes in the factors that influenced management’s estimate of expected credit losses and the reasons for those changes. For financing receivables and net investments in leases measured at amortized cost, an entity will be required to further disaggregate the information it currently discloses about the credit quality of these assets by year of the asset’s origination for as many as five annual periods. For available for sale securities, an entity will be required to provide a roll-forward of the allowance for credit losses and an aging analysis for securities that are past due. ASU No. 2016-13 is effective for annual periods beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. The Company is still evaluating the impact of adopting ASU No. 2016-13 on its financial statements, but does not expect the adoption of ASU No. 2016-13 to have a material impact on its financial statements. In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments (“ASU No. 2016-15”). ASU No. 2016-15 is intended to reduce diversity in practice in how certain transactions are classified in the statement of cash flows. The amendments in ASU No. 2016-15 provide guidance on eight specific cash flow issues, including the following that are or may be relevant to the Company: (a) Cash payments for debt prepayment or debt extinguishment costs should be classified as cash outflows for financing activities; (b) Cash payments relating to contingent consideration made soon after an acquisition’s consummation date (i.e., approximately three months or less) should be classified as cash outflows for investing activities. Payments made thereafter should be classified as cash outflows for financing activities up to the amount of the original contingent consideration liability. Payments made in excess of the amount of the original contingent consideration liability should be classified as cash outflows for operating activities; (c) Cash payments received from the settlement of insurance claims should be classified on the basis of the nature of the loss (or each component loss, if an entity receives a lump-sum settlement); (d) In the absence of specific guidance, an entity should classify each separately identifiable cash source and use on the basis of the nature of the underlying cash flows. For cash flows with aspects of more than one class that cannot be separated, the classification should be based on the activity that is likely to be the predominant source or use of cash flow. ASU No. 2016-15 is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. The Company is still evaluating the impact of adopting ASU No. 2016-15 on its financial statements, but does not expect the adoption of ASU No. 2016-15 to have a material impact to its financial statements. In November 2016, the FASB issued ASU No. 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash (“ASU No. 2016-18”). ASU No. 2016-18 requires that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, restricted cash and restricted cash equivalents. Therefore, amounts generally described as restricted cash should be included with cash and cash equivalents when reconciling the beginning of period and end of period total amounts shown on the statement of cash flows. ASU No. 2016-18 is effective for annual periods beginning after December 15, 2017, including interim periods within those fiscal years. The Company elected to early adopt ASU No. 2016-18 for the reporting period ended December 31, 2016 and it was applied retrospectively. As a result of the adoption of ASU No. 2016-18, the Company no longer presents the changes within restricted cash in the consolidated statements of cash flows.

REAL ESTATE HELD FOR INVESTME21

REAL ESTATE HELD FOR INVESTMENT (Tables)	3 Months Ended
	Mar. 31, 2017
Real Estate [Abstract]
Schedule of Real Estate Investments	The following table summarizes the Company’s real estate portfolio as of March 31, 2017 (in thousands): Property Date Acquired City State Property Type Total Real Estate at Cost (1) Accumulated Depreciation and Amortization (1) Total Real Estate, Net (1) 100 & 200 Campus Drive Buildings 09/09/2008 Florham Park NJ Office $ 140,486 $ (7,304 ) $ 133,182 300-600 Campus Drive Buildings 10/10/2008 Florham Park NJ Office 161,637 (11,929 ) 149,708 Willow Oaks Corporate Center 08/26/2009 Fairfax VA Office 103,365 (16,345 ) 87,020 Pierre Laclede Center 02/04/2010 Clayton MO Office 78,888 (8,099 ) 70,789 Horizon Tech Center 06/17/2010 San Diego CA Office 29,540 (1,687 ) 27,853 Union Bank Plaza 09/15/2010 Los Angeles CA Office 187,470 (17,703 ) 169,767 Emerald View at Vista Center 12/09/2010 West Palm Beach FL Office 31,038 (6,220 ) 24,818 Granite Tower 12/16/2010 Denver CO Office 154,310 (39,235 ) 115,075 Fountainhead Plaza 09/13/2011 Tempe AZ Office 119,383 (13,678 ) 105,705 Corporate Technology Centre 03/28/2013 San Jose CA Office 229,298 (31,046 ) 198,252 $ 1,235,415 $ (153,246 ) $ 1,082,169 _____________________ (1) Amounts presented are net of impairment charges.
Schedules of Concentration of Risk, by Risk Factor	As of March 31, 2017 , the Company had approximately 190 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 Base Rent (1) (in thousands) Percentage of Annualized Base Rent Finance 33 $ 29,287 23.1 % Computer System Design & Programming 7 19,230 15.2 % Mining, Oil & Gas Extraction 5 16,939 13.3 % Legal Services 34 14,908 11.7 % $ 80,364 63.3 % _____________________ (1) Annualized base rent represents annualized contractual base rental income as of March 31, 2017 , 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 March 31, 2017 , the following properties represented more than 10% of the Company’s total assets: Property Location Rentable Square Feet Total Real Estate, Net (in thousands) Percentage of Total Assets Annualized Base Rent (in thousands) (1) Average Annualized Base Rent per Sq. Ft. Occupancy Corporate Technology Centre San Jose, CA 610,083 $ 198,252 15.5 % $ 18,537 $ 30.38 100 % Union Bank Plaza Los Angeles, CA 627,334 169,767 13.3 % 21,891 40.38 86 % 300-600 Campus Drive Buildings Florham Park, NJ 578,402 149,708 11.7 % 17,400 31.07 97 % 100 & 200 Campus Drive Buildings Florham Park, NJ 586,405 133,182 10.4 % 11,747 31.35 64 % _____________________ (1) Annualized base rent represents annualized contractual base rental income as of March 31, 2017 , 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 March 31, 2017 , the Company had a concentration of credit risk related to the following tenant lease that represented more than 10% of the Company’s annualized base rent: Annualized Base Rent Statistics Tenant Property Tenant Industry Square Feet % of Portfolio (Net Rentable Sq. Ft.) Annualized Base Rent (in thousands) (1) % of Portfolio Annualized Base Rent Annualized Base Rent per Sq. Ft. Lease Expiration (2) (3) Union Bank Union Bank Plaza Finance 374,658 9.0% $ 15,591 12.3% $ 41.61 04/30/2017 / 01/31/2022 _____________________ (1) Annualized base rent represents annualized contractual base rental income as of March 31, 2017 , 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) Represents the expiration date of the leases as of March 31, 2017 and does not take into account any tenant renewal or termination options. (3) Of the 374,658 rentable square feet occupied by the tenant, a total of 31,946 rentable square feet expired on April 30, 2017. With respect to the lease that expires on January 31, 2022, Union Bank has two options to extend the term of this lease for three, four, five, six or seven years per option term, provided that the combined renewal option terms do not exceed 10 years. If Union Bank elects to exercise its extension options, it must extend the lease on (i) the entire office premise or (ii) no less than 200,000 rentable square feet consisting of full floors only plus either all or none of both the retail and vault space.
Schedule of Future Minimum Rental Income for Company's Properties	As of March 31, 2017 , the future minimum rental income from the Company’s properties under non-cancelable operating leases was as follows (in thousands): April 1, 2017 through December 31, 2017 $ 93,946 2018 119,595 2019 105,838 2020 99,381 2021 86,099 Thereafter 264,558 $ 769,417

TENANT ORIGINATION AND ABSORP22

TENANT ORIGINATION AND ABSORPTION COSTS, ABOVE-MARKET LEASE ASSETS AND BELOW-MARKET LEASE LIABILITIES (Tables)	3 Months Ended
	Mar. 31, 2017
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 March 31, 2017 and December 31, 2016 , 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 Absorption Costs Above-Market Lease Assets Below-Market Lease Liabilities March 31, December 31, March 31, December 31, March 31, December 31, Cost $ 63,993 $ 64,117 $ 13,740 $ 13,740 $ (11,200 ) $ (11,249 ) Accumulated amortization (35,986 ) (33,577 ) (9,860 ) (9,274 ) 8,744 8,373 Net amount $ 28,007 $ 30,540 $ 3,880 $ 4,466 $ (2,456 ) $ (2,876 )
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 months ended March 31, 2017 and 2016 were as follows (in thousands): Tenant Origination and Absorption Costs Above-Market Lease Assets Below-Market Lease Liabilities For the Three Months Ended March 31, For the Three Months Ended March 31, For the Three Months Ended March 31, 2017 2016 2017 2016 2017 2016 Amortization $ (2,561 ) $ (3,437 ) $ (586 ) $ (628 ) $ 423 $ 1,036

REAL ESTATE LOAN RECEIVABLE (Ta

REAL ESTATE LOAN RECEIVABLE (Tables)	3 Months Ended
	Mar. 31, 2017
Receivables [Abstract]
Schedule of Real Estate Loans Receivable	As of March 31, 2017 and December 31, 2016 , the Company, through an indirect wholly owned subsidiary, had originated the following real estate loan receivable (dollars in thousands): Loan Name Location of Related Property or Collateral Date Acquired/ Originated Property Type Loan Type Outstanding Principal Balance as of March 31, 2017 (1) Book Value as of March 31, 2017 (2) Book Value as of December 31, 2016 (2) Contractual Interest Rate (3) Annualized Effective Interest Rate (3) Maturity Date Sheraton Charlotte Airport Hotel First Mortgage Charlotte, North Carolina 07/11/2011 Hotel Mortgage $ 14,033 $ 14,037 $ 14,079 7.5% 7.6% 08/01/2018 _____________________ (1) Outstanding principal balance as of March 31, 2017 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 2017, using the interest method, annualized and divided by the average amortized cost basis of the investment during 2017. The contractual interest rate and annualized effective interest rate presented are as of March 31, 2017 .
Schedule of Activity Related to Real Estate Loans Receivable	The following summarizes the activity related to the real estate loan receivable for the three months ended March 31, 2017 (in thousands): Real estate loan receivable - December 31, 2016 $ 14,079 Principal repayments received on the real estate loan receivable (41 ) Amortization of closing costs and origination fees on the real estate loan receivable (1 ) Real estate loan receivable - March 31, 2017 $ 14,037
Schedule of Interest Income from Real Estate Loans Receivable	For the three months ended March 31, 2017 and 2016 , interest income from the real estate loan receivable consisted of the following (in thousands): Three Months Ended March 31, 2017 2016 Contractual interest income $ 264 $ 269 Amortization of closing costs and origination fees (1 ) (1 ) Interest income from real estate loan receivable $ 263 $ 268

REAL ESTATE HELD FOR SALE (Tabl

REAL ESTATE HELD FOR SALE (Tables)	3 Months Ended
	Mar. 31, 2017
Discontinued Operations and Disposal Groups [Abstract]
Schedule of Revenue and Expenses of Real Estate Disposed of by Sale	The following table summarizes certain revenue and expenses related to these properties (in thousands): Three Months Ended March 31, 2017 2016 Revenues Rental income $ 1,316 $ 2,088 Tenant reimbursements 23 248 Total revenues 1,339 2,336 Expenses Operating, maintenance, and management 316 418 Real estate taxes and insurance 181 336 Asset management fees to affiliate 93 161 General and administrative expenses 50 77 Depreciation and amortization 157 839 Interest expense 88 300 Total expenses $ 885 $ 2,131
Schedule of Assets and Liabilities of 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 March 31, 2017 and December 31, 2016 (in thousands): March 31, 2017 December 31, 2016 Assets related to real estate held for sale Total real estate, at cost $ 42,354 $ 42,276 Accumulated depreciation and amortization (8,423 ) (8,282 ) Real estate held for sale, net 33,931 33,994 Other assets 3,808 3,565 Total assets related to real estate held for sale $ 37,739 $ 37,559 Liabilities related to real estate held for sale Other liabilities 14 17 Total liabilities related to real estate held for sale $ 14 $ 17

NOTES PAYABLE (Tables)

NOTES PAYABLE (Tables)	3 Months Ended
	Mar. 31, 2017
Notes Payable [Abstract]
Schedule of Long-term Debt Instruments	As of March 31, 2017 and December 31, 2016 , the Company’s notes payable, including notes payable related to real estate held for sale, consisted of the following (dollars in thousands): Book Value as of March 31, 2017 Book Value as of December 31, 2016 Contractual Interest Rate as of March 31, 2017 (1) Effective Interest Rate as of March 31, 2017 (1) Payment Type Maturity Date (2) Amended and Restated Portfolio Revolving Loan Facility (3) $ 52,638 $ 52,638 One-month LIBOR + 1.80% 3.1% Interest Only 06/21/2017 Union Bank Plaza Mortgage Loan (4) 105,000 105,000 One-month LIBOR + 1.65% 2.4% Interest Only 09/15/2017 Portfolio Mortgage Loan #1 (5) 77,651 78,033 One-month LIBOR + 2.15% 2.9% Interest Only 04/20/2017 Portfolio Mortgage Loan #3 (6) 54,000 54,000 One-month LIBOR + 2.5% Interest Only 03/01/2018 Corporate Technology Centre Mortgage Loan (7) 140,000 140,000 3.50% 3.5% (7) 04/01/2020 300-600 Campus Drive Revolving Loan (8) 94,250 94,625 One-month LIBOR + 2.05% 2.9% (8) 08/01/2017 Total notes payable principal outstanding $ 523,539 $ 524,296 Deferred financing costs, net (571 ) (525 ) Total notes payable, net $ 522,968 $ 523,771 _____________________ (1) Contractual interest rate represents the interest rate in effect under the loan as of March 31, 2017 . Effective interest rate is calculated as the actual interest rate in effect as of March 31, 2017 (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 March 31, 2017 , where applicable. For further information regarding the Company’s derivative instruments, see Note 8, “Derivative Instruments.” (2) Represents the initial maturity date or the maturity date as extended as of March 31, 2017 ; subject to certain conditions, the maturity dates of certain loans may be extended beyond the maturity date shown. (3) As of March 31, 2017 , the Amended and Restated Portfolio Revolving Loan Facility was secured by Pierre Laclede Center. (4) On March 17, 2017, the Company extended the maturity date of the Union Bank Plaza Mortgage Loan to September 15, 2017. As of March 31, 2017 , $105.0 million of the Union Bank Plaza Mortgage Loan 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. (5) On March 20, 2017, the Company extended the maturity date of Portfolio Mortgage Loan #1 to April 20, 2017. In addition, the lender of Portfolio Mortgage Loan #1 released Gateway Corporate Center as a collateral for this loan. As of March 31, 2017 , Portfolio Mortgage Loan #1 was secured by Horizon Tech Center and Granite Tower. Subsequent to March 31, 2017 , the Company is in negotiations with the lender to extend the maturity date of Portfolio Mortgage Loan #1 and the lender has issued a letter agreement to the Company, stating that the Company is not in default under the loan. (6) On March 1, 2017, the Company exercised its second extension option with the lender to extend the maturity date of Portfolio Mortgage Loan #3 to March 1, 2018 and reduced the loan commitment amount to $54.0 million . As of March 31, 2017 , the principal balance under Portfolio Mortgage Loan #3 consisted of the $32.4 million non-revolving portion and $21.6 million revolving portion. As of March 31, 2017 , Portfolio Mortgage Loan #3 was secured by the 100 & 200 Campus Drive Buildings and Willow Oaks Corporate Center. (7) Monthly payments are initially interest-only. Beginning on May 1, 2017 , monthly payments for the Corporate Technology Centre Mortgage Loan 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. (8) As of March 31, 2017 , the principal balance of the 300-600 Campus Drive Revolving Loan consisted of the $94.3 million non-revolving portion. The revolving portion of $25.0 million remained available for future disbursements, subject to certain terms and conditions contained in the loan documents. On the first day of each calendar quarter, commencing on October 1, 2016, and each succeeding January 1, April 1, July 1 and October 1 thereafter, the Company repays principal outstanding under the 300-600 Campus Drive Revolving Loan in equal installments of $375,000 . Subsequent to March 31, 2017 , the Company exercised its extension option with the lender to extend the maturity date of 300-600 Campus Drive Revolving Loan to August 1, 2018.
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 March 31, 2017 (in thousands): April 1, 2017 through December 31, 2017 $ 331,320 2018 56,750 2019 2,848 2020 132,621 $ 523,539

DERIVATIVE INSTRUMENTS (Tables)

DERIVATIVE INSTRUMENTS (Tables)	3 Months Ended
	Mar. 31, 2017
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 March 31, 2017 and December 31, 2016 . The notional amount 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): Derivative Instruments March 31, 2017 December 31, 2016 Reference Rate as of March 31, 2017 Fix Pay Rate Remaining Term in Years Number of Instruments Notional Amount Number of Instruments Notional Amount Interest Rate Swaps (1) 1 $52,638 3 $106,638 One-month LIBOR/ 1.30% 0.3 _____________________ (1) During the three months ended March 31, 2017 , two of the Company’s interest rate swaps expired. As of March 31, 2017 and December 31, 2016 , none of the Company’s interest rate swaps were designated as cash flow hedges.
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 March 31, 2017 and December 31, 2016 (dollars in thousands): Derivative Instruments Balance Sheet Location March 31, 2017 December 31, 2016 Number of Instruments Fair Value Number of Instruments Fair Value Interest Rate Swaps Prepaid expenses and other assets, at fair value — $ — 2 $ 6 Interest Rate Swaps Other liabilities, at fair value 1 $ (27 ) 1 $ (107 )
Schedule of Derivative Instruments in Statement of Operations	The following table summarizes the effects of derivative instruments on the Company’s consolidated statements of operations (in thousands): For the Three Months Ended March 31, 2017 2016 Derivatives designated as hedging instruments (1) Amount of loss recognized on interest rate swaps (effective portion) $ — $ 34 — 34 Derivatives not designated as hedging instruments Realized loss recognized on interest rate swaps 63 268 Unrealized (gains) losses on interest rate swaps (74 ) 196 Losses related to swap terminations — 2 (11 ) 466 (Decrease) increase in interest expense as a result of derivatives $ (11 ) $ 500 _____________________ (1) All of the Company’s interest rate swap agreements were initially designated as cash flow hedges. During 2014, the Company dedesignated all of its interest rate swap instruments due to the anticipated early repayment of debt in connection with asset sales, and therefore, certain hedged forecasted transactions were no longer probable beyond the projected asset sale date.

FAIR VALUE DISCLOSURES (Tables)

FAIR VALUE DISCLOSURES (Tables)	3 Months Ended
	Mar. 31, 2017
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 loan receivable and notes payable as of March 31, 2017 and December 31, 2016 , which carrying amounts do not generally approximate the fair values (in thousands): March 31, 2017 December 31, 2016 Face Value Carrying Amount Fair Value Face Value Carrying Amount Fair Value Financial assets: Real estate loan receivable $ 14,033 $ 14,037 $ 14,043 $ 14,073 $ 14,079 $ 14,089 Financial liabilities: Notes payable $ 523,539 $ 522,968 $ 521,056 $ 524,296 $ 523,771 $ 522,296
Schedule of Assets and Liabilities at Fair Value	As of March 31, 2017 , the Company measured the following liabilities at fair value (in thousands): Fair Value Measurements Using Total Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Recurring Basis: Liability derivatives $ 27 $ — $ 27 $ —

RELATED PARTY TRANSACTIONS (Tab

RELATED PARTY TRANSACTIONS (Tables)	3 Months Ended
	Mar. 31, 2017
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 months ended March 31, 2017 and 2016 , respectively, and any related amounts payable as of March 31, 2017 and December 31, 2016 (in thousands): Incurred Payable as of Three Months Ended March 31, March 31, December 31, 2017 2016 2017 2016 Expensed Asset management fees $ 2,913 $ 2,956 $ — $ — Reimbursement of operating expenses (1) 69 69 69 41 $ 2,982 $ 3,025 $ 69 $ 41 _____________________ (1) Reimbursable operating expenses primarily consists of internal audit personnel costs, accounting software and cybersecurity related expenses incurred by the Advisor under the Advisory Agreement. The Company has reimbursed 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 $49,000 and $49,000 for the three months ended March 31, 2017 and 2016 , respectively, and were the only type of employee costs reimbursed under the Advisory Agreement for the three months ended March 31, 2017 and 2016 . 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. In addition to the amounts above, the Company reimburses the Advisor for certain of the Company’s direct costs incurred from third parties that were initially paid by the Advisor on behalf of the Company.

ORGANIZATION (Details)

ORGANIZATION (Details) $ in Thousands	3 Months Ended	12 Months Ended	35 Months Ended	107 Months Ended
	Mar. 31, 2017USD ($)loans-receivablepropertyshares	Dec. 31, 2016USD ($)shares	Mar. 22, 2011USD ($)shares	Mar. 31, 2017USD ($)loans-receivablepropertyshares
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	11			11
Number of real estate loans receivable | loans-receivable	1			1
Issuance of common stock, value | $			$ 1,800,000
Shares of common stock sold under dividend reinvestment plan, value | $				$ 298,200
Redemptions of common stock, value | $	$ 1,044	$ 4,690		$ 241,100
Common Stock [Member]
Organizational Structure [Line Items]
Issuance of common stock, shares | shares			182,681,633
Shares of common stock sold under dividend reinvestment plan, shares | shares				30,903,504
Redemptions of common stock, shares | shares	190,107	836,233		25,075,292
Redemptions of common stock, value | $	$ 2	$ 8
KBS Capital Advisors LLC [Member]
Organizational Structure [Line Items]
Period of Advisory Agreement renewal	1 year
Period of termination notice	60 days
KBS Capital Advisors LLC [Member] | Common Stock [Member]
Organizational Structure [Line Items]
Shares held by affiliate | shares	20,000			20,000
Held-for-sale [Member]
Organizational Structure [Line Items]
Number of real estate properties	1			1
Office Properties [Member]
Organizational Structure [Line Items]
Number of real estate properties	10			10
Office Campus [Member]
Organizational Structure [Line Items]
Number of real estate properties	1			1
Office Buildings, Campus [Member]
Organizational Structure [Line Items]
Number of real estate properties	8			8

SUMMARY OF SIGNIFICANT ACCOUN30

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - $ / shares	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Accounting Policies [Abstract]
Distributions declared per common share (in dollars per share)	$ 0.068	$ 0.070

REAL ESTATE HELD FOR INVESTME31

REAL ESTATE HELD FOR INVESTMENT (Narrative) (Details) ft² in Millions	Mar. 31, 2017ft²property
Real Estate Properties [Line Items]
Number of real estate properties	11
Occupancy	85.00%
Office Properties [Member]
Real Estate Properties [Line Items]
Number of real estate properties	10
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
Real Estate Held-for-Investment [Member]
Real Estate Properties [Line Items]
Rentable Square Feet | ft²	4.9
Real Estate Held-for-Investment [Member] | Office Properties [Member]
Real Estate Properties [Line Items]
Number of real estate properties	9
Real Estate Held-for-Investment [Member] | Office Buildings, Campus [Member]
Real Estate Properties [Line Items]
Number of real estate properties	8

REAL ESTATE HELD FOR INVESTME32

REAL ESTATE HELD FOR INVESTMENT (Schedule of Real Estate Investments) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Real Estate Properties [Line Items]
Total Real Estate at Cost	$ 1,235,415	$ 1,233,572
Accumulated Depreciation and Amortization	(153,246)	(141,830)
Total real estate held for investment, net	1,082,169	$ 1,091,742
Office Properties [Member]
Real Estate Properties [Line Items]
Total Real Estate at Cost	1,235,415
Accumulated Depreciation and Amortization	(153,246)
Total real estate held for investment, net	$ 1,082,169
100 & 200 Campus Drive Buildings [Member] | Office Properties [Member]
Real Estate Properties [Line Items]
Date Acquired	Sep. 9, 2008
Total Real Estate at Cost	$ 140,486
Accumulated Depreciation and Amortization	(7,304)
Total real estate held for investment, net	$ 133,182
300-600 Campus Drive Buildings [Member] | Office Properties [Member]
Real Estate Properties [Line Items]
Date Acquired	Oct. 10, 2008
Total Real Estate at Cost	$ 161,637
Accumulated Depreciation and Amortization	(11,929)
Total real estate held for investment, net	$ 149,708
Willow Oaks Corporate Center [Member] | Office Properties [Member]
Real Estate Properties [Line Items]
Date Acquired	Aug. 26, 2009
Total Real Estate at Cost	$ 103,365
Accumulated Depreciation and Amortization	(16,345)
Total real estate held for investment, net	$ 87,020
Pierre Laclede Center [Member] | Office Properties [Member]
Real Estate Properties [Line Items]
Date Acquired	Feb. 4, 2010
Total Real Estate at Cost	$ 78,888
Accumulated Depreciation and Amortization	(8,099)
Total real estate held for investment, net	$ 70,789
Horizon Tech Center [Member] | Office Properties [Member]
Real Estate Properties [Line Items]
Date Acquired	Jun. 17, 2010
Total Real Estate at Cost	$ 29,540
Accumulated Depreciation and Amortization	(1,687)
Total real estate held for investment, net	$ 27,853
Union Bank Plaza [Member] | Office Properties [Member]
Real Estate Properties [Line Items]
Date Acquired	Sep. 15, 2010
Total Real Estate at Cost	$ 187,470
Accumulated Depreciation and Amortization	(17,703)
Total real estate held for investment, net	$ 169,767
Emerald View at Vista Center [Member] | Office Properties [Member]
Real Estate Properties [Line Items]
Date Acquired	Dec. 9, 2010
Total Real Estate at Cost	$ 31,038
Accumulated Depreciation and Amortization	(6,220)
Total real estate held for investment, net	$ 24,818
Granite Tower [Member] | Office Properties [Member]
Real Estate Properties [Line Items]
Date Acquired	Dec. 16, 2010
Total Real Estate at Cost	$ 154,310
Accumulated Depreciation and Amortization	(39,235)
Total real estate held for investment, net	$ 115,075
Fountainhead Plaza [Member] | Office Properties [Member]
Real Estate Properties [Line Items]
Date Acquired	Sep. 13, 2011
Total Real Estate at Cost	$ 119,383
Accumulated Depreciation and Amortization	(13,678)
Total real estate held for investment, net	$ 105,705
Corporate Technology Centre [Member] | Office Properties [Member]
Real Estate Properties [Line Items]
Date Acquired	Mar. 28, 2013
Total Real Estate at Cost	$ 229,298
Accumulated Depreciation and Amortization	(31,046)
Total real estate held for investment, net	$ 198,252

REAL ESTATE HELD FOR INVESTME33

REAL ESTATE HELD FOR INVESTMENT (Properties Represented More than 10% of Company’s Total Assets) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017USD ($)ft²$ / ft²	Dec. 31, 2016USD ($)
Real Estate Properties [Line Items]
Total Real Estate, Net	$ 1,082,169	$ 1,091,742
Percentage of Total Assets	63.30%
Annualized Base Rent	$ 80,364
Occupancy	85.00%
Corporate Technology Centre [Member] | Assets, Total [Member]
Real Estate Properties [Line Items]
Rentable Square Feet | ft²	610,083
Total Real Estate, Net	$ 198,252
Percentage of Total Assets	15.50%
Annualized Base Rent	$ 18,537
Average Annualized Base Rent per Sq. Ft. | $ / ft²	30.38
Occupancy	100.00%
Union Bank Plaza [Member] | Assets, Total [Member]
Real Estate Properties [Line Items]
Rentable Square Feet | ft²	627,334
Total Real Estate, Net	$ 169,767
Percentage of Total Assets	13.30%
Annualized Base Rent	$ 21,891
Average Annualized Base Rent per Sq. Ft. | $ / ft²	40.38
Occupancy	86.00%
300-600 Campus Drive Buildings [Member] | Assets, Total [Member]
Real Estate Properties [Line Items]
Rentable Square Feet | ft²	578,402
Total Real Estate, Net	$ 149,708
Percentage of Total Assets	11.70%
Annualized Base Rent	$ 17,400
Average Annualized Base Rent per Sq. Ft. | $ / ft²	31.07
Occupancy	97.00%
100 & 200 Campus Drive Buildings [Member] | Assets, Total [Member]
Real Estate Properties [Line Items]
Rentable Square Feet | ft²	586,405
Total Real Estate, Net	$ 133,182
Percentage of Total Assets	10.40%
Annualized Base Rent	$ 11,747
Average Annualized Base Rent per Sq. Ft. | $ / ft²	31.35
Occupancy	64.00%

REAL ESTATE HELD FOR INVESTME34

REAL ESTATE HELD FOR INVESTMENT (Operating Leases) (Narrative) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017USD ($)tenant	Mar. 31, 2016USD ($)	Dec. 31, 2016USD ($)
Operating Leased Assets [Line Items]
Deferred rent recognized	$ 871	$ 1,325
Deferred rent receivables	58,600		$ 57,900
Unamortized lease incentives	$ 10,300		10,900
Number of tenants | tenant	190
Recorded bad debt expense related to tenant	$ 160	$ 42
Bad debt reserve	500
Other Liabilities, at Fair Value [Member]
Operating Leased Assets [Line Items]
Security deposit liability	$ 2,400		$ 2,500
Maximum [Member]
Operating Leased Assets [Line Items]
Operating lease, term	14 years 7 months 6 days
Bad debt reserve of annualized base rent	1.00%
Weighted Average [Member]
Operating Leased Assets [Line Items]
Operating lease, term	5 years 2 months 12 days

REAL ESTATE HELD FOR INVESTME35

REAL ESTATE HELD FOR INVESTMENT (Future Minimum Rental Income) (Details) $ in Thousands	Mar. 31, 2017USD ($)
Real Estate [Abstract]
April 1, 2017 through December 31, 2017	$ 93,946
2,018	119,595
2,019	105,838
2,020	99,381
2,021	86,099
Thereafter	264,558
Future minimum rental income	$ 769,417

REAL ESTATE HELD FOR INVESTME36

REAL ESTATE HELD FOR INVESTMENT (Highest Tenant Industry Concentrations- Grater than 10% of Annual Base Rent) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017USD ($)tenant
Concentration Risk [Line Items]
Number of Tenants | tenant	190
Annualized Base Rent | $	$ 80,364
Percentage of Annualized Base Rent	63.30%
Finance [Member]
Concentration Risk [Line Items]
Number of Tenants | tenant	33
Annualized Base Rent | $	$ 29,287
Percentage of Annualized Base Rent	23.10%
Computer System Design & Programming [Member]
Concentration Risk [Line Items]
Number of Tenants | tenant	7
Annualized Base Rent | $	$ 19,230
Percentage of Annualized Base Rent	15.20%
Mining, Oil & Gas Extraction [Member]
Concentration Risk [Line Items]
Number of Tenants | tenant	5
Annualized Base Rent | $	$ 16,939
Percentage of Annualized Base Rent	13.30%
Legal Services [Member]
Concentration Risk [Line Items]
Number of Tenants | tenant	34
Annualized Base Rent | $	$ 14,908
Percentage of Annualized Base Rent	11.70%

REAL ESTATE HELD FOR INVESTME37

REAL ESTATE HELD FOR INVESTMENT (Concentration of Credit Risk for Tenant Leases) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016ft²extension	Apr. 30, 2017ft²	Mar. 31, 2017USD ($)ft²$ / ft²
Real Estate Properties [Line Items]
Annualized Base Rent | $			$ 80,364
Tenant Lease - Union Bank Plaza [Member]
Real Estate Properties [Line Items]
Square Feet			374,658
% of Portfolio (Net Rentable Sq. Ft.)			9.00%
Annualized Base Rent | $			$ 15,591
% of Portfolio Annualized Base Rent			12.30%
Annualized Base Rent per Sq. Ft. | $ / ft²			41.61
Extension option | extension	2
Tenant Lease - Union Bank Plaza [Member] | Maximum [Member]
Real Estate Properties [Line Items]
Extension period	10 years
Tenant Lease - Union Bank Plaza [Member] | Minimum [Member]
Real Estate Properties [Line Items]
Rentable area required for extension option	200,000
Tenant Lease - Union Bank Plaza [Member] | Subsequent Event [Member]
Real Estate Properties [Line Items]
Area of real estate property with expiration		31,946

REAL ESTATE HELD FOR INVESTME38

REAL ESTATE HELD FOR INVESTMENT (Geographic Concentration Risk) (Details)	3 Months Ended
	Mar. 31, 2017
Concentration Risk [Line Items]
Concentration risk, percentage	63.30%
California [Member] | Assets, Total [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	31.00%
New Jersey [Member] | Assets, Total [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	22.20%

TENANT ORIGINATION AND ABSORP39

TENANT ORIGINATION AND ABSORPTION COSTS, ABOVE-MARKET LEASE ASSETS AND BELOW-MARKET LEASE LIABILITIES (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Tenant Origination and Absorption Costs, Above-Market Lease Assets and Below-Market Lease Liabilities [Abstract]
Tenant Origination And Absorption Costs, Cost	$ 63,993		$ 64,117
Tenant Origination and Absorption Costs, Accumulated amortization	(35,986)		(33,577)
Tenant Origination and Absorption Costs, Net amount	28,007		30,540
Tenant Origination and Absorption Costs, Amortization	(2,561)	$ (3,437)
Above-Market Lease Assets, Cost	13,740		13,740
Above-Market Lease Assets, Accumulated amortization	(9,860)		(9,274)
Above-Market Lease Assets, Net amount	3,880		4,466
Above-Market Lease Assets, Amortization	(586)	(628)
Below-Market Lease Liabilities, Cost	(11,200)		(11,249)
Below-Market Lease Liabilities, Accumulated amortization	8,744		8,373
Below-Market Lease Liabilities, Net amount	(2,456)		$ (2,876)
Below-Market Lease Liabilities, Amortization	$ 423	$ 1,036

REAL ESTATE LOAN RECEIVABLE (Sc

REAL ESTATE LOAN RECEIVABLE (Schedule of Real Estate Loans Receivable) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Book Value	$ 14,037	$ 14,079
Mortgages [Member] | Sheraton Charlotte Airport Hotel First Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Date Acquired	Jul. 11, 2011
Outstanding Principal Balance	$ 14,033
Book Value	$ 14,037	$ 14,079
Contractual Interest Rate	7.50%
Annualized Effective Interest Rate	7.60%
Maturity Date	Aug. 1, 2018

REAL ESTATE LOAN RECEIVABLE (41

REAL ESTATE LOAN RECEIVABLE (Schedule of Activity Related to Real Estate Loans Receivable) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Real Estate Loans Receivable [Roll Forward]
Real estate loan receivable - December 31, 2016	$ 14,079
Principal repayments received on the real estate loan receivable	(41)	$ (35)
Amortization of closing costs and origination fees on the real estate loan receivable	(1)	$ (1)
Real estate loan receivable - March 31, 2017	$ 14,037

REAL ESTATE LOAN RECEIVABLE (42

REAL ESTATE LOAN RECEIVABLE (Schedule of Interest Income from Real Estate Loans Receivable) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Receivables [Abstract]
Contractual interest income	$ 264	$ 269
Amortization of closing costs and origination fees	(1)	(1)
Interest income from real estate loan receivable	$ 263	$ 268

REAL ESTATE HELD FOR SALE (Narr

REAL ESTATE HELD FOR SALE (Narrative) (Details) - Disposed of by Sale [Member] - property	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Office/Flex Properties [Member]
Real Estate Properties [Line Items]
Number of real estate properties sold	1
Office Properties [Member]
Real Estate Properties [Line Items]
Number of real estate properties sold		1

REAL ESTATE HELD FOR SALE (Reve

REAL ESTATE HELD FOR SALE (Revenue and Expenses of Real Estate Held-for-Sale) (Details) - Disposed of by Sale [Member] - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenues
Rental income	$ 1,316	$ 2,088
Tenant reimbursements	23	248
Total revenues	1,339	2,336
Expenses
Operating, maintenance, and management	316	418
Real estate taxes and insurance	181	336
Asset management fees to affiliate	93	161
General and administrative expenses	50	77
Depreciation and amortization	157	839
Interest expense	88	300
Total expenses	$ 885	$ 2,131

REAL ESTATE HELD FOR SALE (Sche

REAL ESTATE HELD FOR SALE (Schedule of Assets and Liabilities Related to Real Estate Held for Sale) (Details) - Held-for-sale [Member] - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total real estate, at cost	$ 42,354	$ 42,276
Accumulated depreciation and amortization	(8,423)	(8,282)
Real estate held for sale, net	33,931	33,994
Other assets	3,808	3,565
Total assets related to real estate held for sale	37,739	37,559
Other liabilities	14	17
Total liabilities related to real estate held for sale	$ 14	$ 17

NOTES PAYABLE (Narrative) (Deta

NOTES PAYABLE (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Notes Payable [Abstract]
Interest expense	$ 4,047	$ 4,474
Interest payable, current	1,300		$ 1,300
Amortization of deferred financing costs	265	369
Additional interest expense related to interest rate swap		$ 500
Interest Rate Swap [Member]
Derivative [Line Items]
Unrealized gain on derivatives	$ 11

NOTES PAYABLE (Schedule of Long

NOTES PAYABLE (Schedule of Long-term Debt Instruments) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016	Mar. 01, 2016
Debt Instrument [Line Items]
Total notes payable principal outstanding	$ 523,539,000	$ 524,296,000
Deferred financing costs, net	(571,000)	(525,000)
Total notes payable, net	522,968,000	523,771,000
Debt instrument, face amount	523,539,000	524,296,000
Portfolio Revolving Loan [Member] | Mortgage [Member]
Debt Instrument [Line Items]
Total notes payable principal outstanding	$ 52,638,000	52,638,000
Effective Interest Rate	3.10%
Maturity Date	Jun. 21, 2017
Portfolio Revolving Loan [Member] | Mortgage [Member] | One-month LIBOR [Member]
Debt Instrument [Line Items]
Basis Spread on Variable Rate	1.80%
Union Bank Plaza [Member] | Mortgage [Member]
Debt Instrument [Line Items]
Total notes payable principal outstanding	$ 105,000,000	105,000,000
Effective Interest Rate	2.40%
Maturity Date	Sep. 15, 2017
Amount outstanding	$ 105,000,000
Unused borrowing capacity, amount	$ 14,300,000
Union Bank Plaza [Member] | Mortgage [Member] | One-month LIBOR [Member]
Debt Instrument [Line Items]
Basis Spread on Variable Rate	1.65%
Portfolio Mortgage Loan 1 [Member] | Mortgage [Member]
Debt Instrument [Line Items]
Total notes payable principal outstanding	$ 77,651,000	78,033,000
Effective Interest Rate	2.90%
Maturity Date	Apr. 20, 2017
Portfolio Mortgage Loan 1 [Member] | Mortgage [Member] | One-month LIBOR [Member]
Debt Instrument [Line Items]
Basis Spread on Variable Rate	2.15%
Portfolio Mortgage Loan 3 [Member] | Mortgage [Member]
Debt Instrument [Line Items]
Total notes payable principal outstanding	$ 54,000,000	54,000,000
Effective Interest Rate	2.50%
Maturity Date	Mar. 1, 2018
Debt instrument, face amount			$ 54,000,000
Portfolio Mortgage Loan 3 [Member] | Mortgage [Member] | Non-Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Amount outstanding	$ 32,400,000
Portfolio Mortgage Loan 3 [Member] | Mortgage [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Amount outstanding	$ 21,600,000
Portfolio Mortgage Loan 3 [Member] | Mortgage [Member] | One-month LIBOR [Member] | Minimum [Member]
Debt Instrument [Line Items]
Basis Spread on Variable Rate	1.75%
Portfolio Mortgage Loan 3 [Member] | Mortgage [Member] | One-month LIBOR [Member] | Maximum [Member]
Debt Instrument [Line Items]
Basis Spread on Variable Rate	1.85%
Corporate Technology Centre [Member] | Mortgage [Member]
Debt Instrument [Line Items]
Total notes payable principal outstanding	$ 140,000,000	140,000,000
Contractual Interest Rate, Percentage	3.50%
Effective Interest Rate	3.50%
Maturity Date	Apr. 1, 2020
Amortization schedule	30 years
300-600 Campus Drive Revolving Loan [Member] | Mortgage [Member]
Debt Instrument [Line Items]
Total notes payable principal outstanding	$ 94,250,000	$ 94,625,000
Effective Interest Rate	2.90%
Maturity Date	Aug. 1, 2017
Periodic payment, principal	$ 375,000
300-600 Campus Drive Revolving Loan [Member] | Mortgage [Member] | Non-Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Amount outstanding	94,300,000
300-600 Campus Drive Revolving Loan [Member] | Mortgage [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Borrowing capacity	$ 25,000,000
300-600 Campus Drive Revolving Loan [Member] | Mortgage [Member] | One-month LIBOR [Member]
Debt Instrument [Line Items]
Basis Spread on Variable Rate	2.05%

NOTES PAYABLE (Schedule of Matu

NOTES PAYABLE (Schedule of Maturities of Long-Term Debt) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Notes Payable [Abstract]
April 1, 2017 through December 31, 2017	$ 331,320
2,018	56,750
2,019	2,848
2,020	132,621
Total notes payable, net	$ 523,539	$ 524,296

DERIVATIVE INSTRUMENTS (Notiona

DERIVATIVE INSTRUMENTS (Notional Amount and Fair Value) (Details) - Interest Rate Swap [Member] $ in Thousands	3 Months Ended
	Mar. 31, 2017USD ($)investment	Dec. 31, 2016USD ($)investment
Derivative [Line Items]
Number of Instruments	1	3
Notional Amount | $	$ 52,638	$ 106,638
Fix Pay Rate	1.30%
Remaining Term in Years	3 months
Number of instruments expired	2
Deferred Financing Costs, Prepaid Expenses and Other Assets, at Fair Value [Member]
Derivative [Line Items]
Number of Instruments	0	2
Notional Amount | $	$ 0	$ 6
Other Liabilities, at Fair Value [Member]
Derivative [Line Items]
Number of Instruments	1	1
Notional Amount | $	$ 27	$ 107
One-month LIBOR [Member] | Minimum [Member]
Derivative [Line Items]
Reference Rate	1.30%
One-month LIBOR [Member] | Maximum [Member]
Derivative [Line Items]
Reference Rate	1.30%

DERIVATIVE INSTRUMENTS (Stateme

DERIVATIVE INSTRUMENTS (Statement of Operations) (Details) - Interest Rate Swap [Member] - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Derivative [Line Items]
(Decrease) increase in interest expense as a result of derivatives	$ (11)	$ 500
Derivatives Designated as Hedging Instrument [Member]
Derivative [Line Items]
Amount of loss recognized on interest rate swaps (effective portion)	0	34
(Decrease) increase in interest expense as a result of derivatives	0	34
Derivatives Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Realized loss recognized on interest rate swaps	63	268
Unrealized (gains) losses on interest rate swaps	(74)	196
Losses related to swap terminations	0	2
(Decrease) increase in interest expense as a result of derivatives	$ (11)	$ 466

FAIR VALUE DISCLOSURES (Schedul

FAIR VALUE DISCLOSURES (Schedule of Face Value, Carrying Amounts and Fair Value) (Details) - USD ($)	Mar. 31, 2017	Dec. 31, 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Real estate loan receivable, Face Value	$ 14,033,000	$ 14,073,000
Notes payable, Face Value	523,539,000	524,296,000
Carrying Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Real estate loans receivable, Value	14,037,000	14,079,000
Notes payable, Value	522,968,000	523,771,000
Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Real estate loans receivable, Value	14,043,000	14,089,000
Notes payable, Value	$ 521,056,000	$ 522,296,000

FAIR VALUE DISCLOSURES (Sched52

FAIR VALUE DISCLOSURES (Schedule of Assets and Liabilities at Fair Value) (Details) - Recurring Basis [Member] $ in Thousands	Mar. 31, 2017USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liability derivatives	$ 27
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liability derivatives	0
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liability derivatives	27
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liability derivatives	$ 0

RELATED PARTY TRANSACTIONS (Rel

RELATED PARTY TRANSACTIONS (Related Party Cost) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Related Party Transaction [Line Items]
Payable as of	$ 69		$ 41
Administrative fees	49	$ 49
Advisor and Dealer Manager [Member]
Related Party Transaction [Line Items]
Expenses	2,982	3,025
Payable as of	69		41
Advisor and Dealer Manager [Member] | Asset Management Fees [Member]
Related Party Transaction [Line Items]
Expenses	2,913	2,956
Payable as of	0		0
Advisor and Dealer Manager [Member] | Reimbursement of Operating Expenses [Member]
Related Party Transaction [Line Items]
Expenses	69	$ 69
Payable as of	$ 69		$ 41

RELATED PARTY TRANSACTIONS (Nar

RELATED PARTY TRANSACTIONS (Narrative) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Related Party Transaction [Line Items]
Due from related parties	$ 129	$ 0
KBS Capital Advisors LLC [Member] | Property Insurance Rebate [Member]
Related Party Transaction [Line Items]
Due from related parties	$ 100

SUBSEQUENT EVENTS (Details)

SUBSEQUENT EVENTS (Details) - USD ($) $ / shares in Units, $ in Millions	Jun. 20, 2017	May 08, 2017	May 01, 2017	Apr. 03, 2017	Apr. 30, 2017	Mar. 31, 2017
Dividend Paid [Member]
Subsequent Event [Line Items]
Distribution rate per share per day, declared						$ 0.02331370
Dividend Declared [Member] | Scenario, Forecast [Member]
Subsequent Event [Line Items]
Distribution rate per share per day, declared	$ 0.02256164	$ 0.02331370
Subsequent Event [Member] | Dividend Paid [Member]
Subsequent Event [Line Items]
Paid distributions			$ 4.3	$ 4.4
Distribution rate per share per day, declared					$ 0.02256164