SUBSEQUENT EVENTS	9 Months Ended
Sep. 30, 2018
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 October 1, 2018, the Company paid distributions of $9.4 million, which related to distributions declared for daily record dates for each day in the period from September 1, 2018 through September 30, 2018. On November 1, 2018, the Company paid distributions of $9.8 million, which related to distributions declared for daily record dates for each day in the period from October 1, 2018 through October 31, 2018. Distributions Authorized On October 8, 2018, the Company’s board of directors authorized distributions based on daily record dates for the period from November 1, 2018 through November 30, 2018, which the Company expects to pay in December 2018. On November 5, 2018, the Company’s board of directors authorized distributions based on daily record dates for the period from December 1, 2018 through December 31, 2018, which the Company expects to pay in January 2019. Investors may choose to receive cash distributions or purchase additional shares through the Company’s dividend reinvestment plan. Distributions for these periods will be calculated based on stockholders of record each day during these periods at a rate of $0.00178082 per share per day and equal a daily amount that, if paid each day for a 365-day period, would equal a 5.54% annualized rate based on the Company's December 6, 2017 estimated value per share of $11.73. Financing Subsequent to September 30, 2018 Portfolio Revolving Loan Facility On October 17, 2018, the Company, through indirect wholly owned subsidiaries (each a “Borrower”), entered into a three-year loan facility with U.S. Bank, N.A., as administrative agent (the “Lender”), for a committed amount of up to $215.0 million (the “Portfolio Revolving Loan Facility”), of which $107.5 million is term debt and $107.5 million is revolving debt. At closing, $200.0 million was available for funding under the Portfolio Revolving Loan Facility with an additional $15.0 million available upon satisfaction of certain conditions set forth in the loan documents. At closing, $107.5 million of the term debt and $92.5 million of revolving debt was funded, of which approximately $69.8 million was used to pay off the 515 Congress Mortgage Loan and approximately $104.0 million was used to pay down one of the Company’s existing portfolio loan facilities. See “Portfolio Loan” below. The remaining amount was used to pay origination fees and accrued interest, with excess proceeds held by the Company for liquidity management. The Portfolio Revolving Loan Facility may be used for working capital, capital expenditures, real property acquisitions and other corporate purposes. The Portfolio Revolving Loan Facility matures on November 1, 2021, with two 12-month extension options, subject to certain terms, conditions and fees as described in the loan documents. The Portfolio Revolving Loan Facility bears interest at a floating rate of 150 basis points over one-month LIBOR. Monthly payments are interest only with the entire balance and all outstanding interest and fees due at maturity. The Company will have the right to prepay all or a portion of the Portfolio Revolving Loan Facility, subject to certain expenses potentially incurred by the Lender as a result of the prepayment and subject to certain conditions contained in the loan documents. During the term of the Portfolio Revolving Loan Facility, the Company has an option to increase the committed amount of the Portfolio Revolving Loan Facility up to four times with each increase of the committed amount to be at least $15.0 million but no greater than, in the aggregate, an additional $170.0 million so that the committed amount will not exceed $385.0 million, of which 50% would be non-revolving debt and 50% would be revolving debt, with the addition of one or more properties to secure the loan, subject to certain terms and conditions contained in the loan documents. In addition, the Portfolio Revolving Loan Facility contains customary representations and warranties, financial and other covenants, events of default and remedies typical for this type of facility. The Portfolio Revolving Loan Facility is secured by 515 Congress, Domain Gateway, the McEwen Building, and Gateway Tech Center. KBS REIT Properties III, LLC (“REIT Properties III”), the Company’s wholly owned subsidiary, is providing a guaranty of (i) up to 25% of the committed amount under the Portfolio Revolving Loan Facility, as such amount may be adjusted from time to time pursuant to the terms of the loan documents, (ii) payment of, and agrees to protect, defend, indemnify and hold harmless each Lender for, from and against, any liability, obligation, deficiency, loss, damage, costs and expenses (including reasonable attorney’s fees), and any litigation which may at any time be imposed upon, incurred or suffered by any Lender because of (a) certain intentional acts committed by any Borrower, (b) fraud or intentional misrepresentations by Borrower or REIT Properties III in connection with the loan documents as described in the guaranty agreement, and (c) certain bankruptcy or insolvency proceedings involving Borrower, as such acts are described in the guaranty, and (iii) upon and subject to the events and conditions described in the guaranty, payment of certain indemnity obligations of Borrower related to environmental matters. Portfolio Loan On October 17, 2018, in connection with the Portfolio Revolving Loan Facility, the Company paid down the Portfolio Loan by approximately $104.0 million, of which $43.0 million was term debt and $61.0 million was revolving debt. Domain Gateway, the McEwen Building, and Gateway Tech Center were released as collateral under the Portfolio Loan. In accordance with the terms of the Portfolio Loan, the committed amount of the Portfolio Loan was reduced from $255.0 million to $169.0 million, of which $84.5 million is term debt and $84.5 million is revolving debt. As a result of the paydown, the Portfolio Loan outstanding principal balance was reduced to $84.5 million, all of which was term debt. The revolving debt of $84.5 million remained available for future disbursements, subject to certain conditions set forth in the loan agreement.

SUBSEQUENT EVENTS

The Company evaluates subsequent events up until the date the consolidated financial statements are issued.

Distributions Paid

On October 1, 2018, the Company paid distributions of $9.4 million, which related to distributions declared for daily record dates for each day in the period from September 1, 2018 through September 30, 2018. On November 1, 2018, the Company paid distributions of $9.8 million, which related to distributions declared for daily record dates for each day in the period from October 1, 2018 through October 31, 2018.

Distributions Authorized

On October 8, 2018, the Company’s board of directors authorized distributions based on daily record dates for the period from November 1, 2018 through November 30, 2018, which the Company expects to pay in December 2018. On November 5, 2018, the Company’s board of directors authorized distributions based on daily record dates for the period from December 1, 2018 through December 31, 2018, which the Company expects to pay in January 2019. Investors may choose to receive cash distributions or purchase additional shares through the Company’s dividend reinvestment plan.

Distributions for these periods will be calculated based on stockholders of record each day during these periods at a rate of $0.00178082 per share per day and equal a daily amount that, if paid each day for a 365-day period, would equal a 5.54% annualized rate based on the Company's December 6, 2017 estimated value per share of $11.73.

Financing Subsequent to September 30, 2018

Portfolio Revolving Loan Facility

On October 17, 2018, the Company, through indirect wholly owned subsidiaries (each a “Borrower”), entered into a three-year loan facility with U.S. Bank, N.A., as administrative agent (the “Lender”), for a committed amount of up to $215.0 million (the “Portfolio Revolving Loan Facility”), of which $107.5 million is term debt and $107.5 million is revolving debt. At closing, $200.0 million was available for funding under the Portfolio Revolving Loan Facility with an additional $15.0 million available upon satisfaction of certain conditions set forth in the loan documents. At closing, $107.5 million of the term debt and $92.5 million of revolving debt was funded, of which approximately $69.8 million was used to pay off the 515 Congress Mortgage Loan and approximately $104.0 million was used to pay down one of the Company’s existing portfolio loan facilities. See “Portfolio Loan” below. The remaining amount was used to pay origination fees and accrued interest, with excess proceeds held by the Company for liquidity management. The Portfolio Revolving Loan Facility may be used for working capital, capital expenditures, real property acquisitions and other corporate purposes.

The Portfolio Revolving Loan Facility matures on November 1, 2021, with two 12-month extension options, subject to certain terms, conditions and fees as described in the loan documents. The Portfolio Revolving Loan Facility bears interest at a floating rate of 150 basis points over one-month LIBOR. Monthly payments are interest only with the entire balance and all outstanding interest and fees due at maturity. The Company will have the right to prepay all or a portion of the Portfolio Revolving Loan Facility, subject to certain expenses potentially incurred by the Lender as a result of the prepayment and subject to certain conditions contained in the loan documents. During the term of the Portfolio Revolving Loan Facility, the Company has an option to increase the committed amount of the Portfolio Revolving Loan Facility up to four times with each increase of the committed amount to be at least $15.0 million but no greater than, in the aggregate, an additional $170.0 million so that the committed amount will not exceed $385.0 million, of which 50% would be non-revolving debt and 50% would be revolving debt, with the addition of one or more properties to secure the loan, subject to certain terms and conditions contained in the loan documents. In addition, the Portfolio Revolving Loan Facility contains customary representations and warranties, financial and other covenants, events of default and remedies typical for this type of facility. The Portfolio Revolving Loan Facility is secured by 515 Congress, Domain Gateway, the McEwen Building, and Gateway Tech Center.

KBS REIT Properties III, LLC (“REIT Properties III”), the Company’s wholly owned subsidiary, is providing a guaranty of (i) up to 25% of the committed amount under the Portfolio Revolving Loan Facility, as such amount may be adjusted from time to time pursuant to the terms of the loan documents, (ii) payment of, and agrees to protect, defend, indemnify and hold harmless each Lender for, from and against, any liability, obligation, deficiency, loss, damage, costs and expenses (including reasonable attorney’s fees), and any litigation which may at any time be imposed upon, incurred or suffered by any Lender because of (a) certain intentional acts committed by any Borrower, (b) fraud or intentional misrepresentations by Borrower or REIT Properties III in connection with the loan documents as described in the guaranty agreement, and (c) certain bankruptcy or insolvency proceedings involving Borrower, as such acts are described in the guaranty, and (iii) upon and subject to the events and conditions described in the guaranty, payment of certain indemnity obligations of Borrower related to environmental matters.

Portfolio Loan

On October 17, 2018, in connection with the Portfolio Revolving Loan Facility, the Company paid down the Portfolio Loan by approximately $104.0 million, of which $43.0 million was term debt and $61.0 million was revolving debt. Domain Gateway, the McEwen Building, and Gateway Tech Center were released as collateral under the Portfolio Loan. In accordance with the terms of the Portfolio Loan, the committed amount of the Portfolio Loan was reduced from $255.0 million to $169.0 million, of which $84.5 million is term debt and $84.5 million is revolving debt. As a result of the paydown, the Portfolio Loan outstanding principal balance was reduced to $84.5 million, all of which was term debt. The revolving debt of $84.5 million remained available for future disbursements, subject to certain conditions set forth in the loan agreement.