$KBSR
KBS Real Estate Investment Trust III, Inc. Stock $kbsr

$kbsr Overview Financials Valuation SEC Filings Company Website

2019 Form 10-K Financial Statement

#000148243020000013 Filed on March 06, 2020

Income Statement

Concept	2019	2018 Q4	2018 Q3
Revenue	$385.3M	$108.4M	$106.1M
YoY Change	-9.62%	5.13%	3.5%
Cost Of Revenue	$179.9M
YoY Change	-9.3%
Gross Profit	$205.4M
YoY Change	-9.89%
Gross Profit Margin	53.31%
Selling, General & Admin	$8.418M
YoY Change	-12.29%
% of Gross Profit	4.1%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$141.1M		$40.82M
YoY Change	-11.17%		-0.79%
% of Gross Profit	68.7%
Operating Expenses	$149.5M
YoY Change	-11.23%
Operating Profit	$55.88M
YoY Change	-6.08%
Interest Expense	$114.3M		$16.60M
YoY Change	58.31%		7.37%
% of Operating Profit	204.55%
Other Income/Expense, Net	$328.3M
YoY Change	1948.95%
Pretax Income	$261.2M
YoY Change	7790.73%
Income Tax
% Of Pretax Income
Net Earnings	$261.2M	-$26.98M	-$4.070M
YoY Change	7751.25%	-2537.4%	29.17%
Net Earnings / Revenue	67.8%	-24.9%	-3.83%
Basic Earnings Per Share	$1.49
Diluted Earnings Per Share	$1.49
COMMON SHARES
Basic Shares Outstanding	174.9M shares	177.2M shares	176.1M shares
Diluted Shares Outstanding	174.9M shares

Balance Sheet

Concept	2019	2018 Q4	2018 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$43.98M
YoY Change	-41.37%
Cash & Equivalents	$43.98M	$75.02M	$78.19M
Short-Term Investments
Other Short-Term Assets	$76.65M
YoY Change	-10.5%
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets	$204.1M
YoY Change	-21.23%
LONG-TERM ASSETS
Property, Plant & Equipment	$2.176B
YoY Change	-28.35%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$253.4M	$0.00	$34.66M
YoY Change		-100.0%
Other Assets	$5.288M
YoY Change	420.99%
Total Long-Term Assets	$2.435B
YoY Change	-19.95%
TOTAL ASSETS
Total Short-Term Assets	$204.1M
Total Long-Term Assets	$2.435B
Total Assets	$2.639B	$3.301B	$3.237B
YoY Change	-20.05%	2.48%	1.38%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$71.38M
YoY Change	6.12%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$88.66M
YoY Change	9.09%
LONG-TERM LIABILITIES
Long-Term Debt	$1.460B
YoY Change	-34.13%
Other Long-Term Liabilities	$53.38M
YoY Change	11.32%
Total Long-Term Liabilities	$1.513B
YoY Change	-33.16%
TOTAL LIABILITIES
Total Short-Term Liabilities	$88.66M
Total Long-Term Liabilities	$1.513B
Total Liabilities	$1.602B	$2.345B	$2.217B
YoY Change	-31.7%	11.66%	9.02%
SHAREHOLDERS EQUITY
Retained Earnings
YoY Change
Common Stock		$1.775M	$1.764M
YoY Change		-1.88%	-2.05%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.037B	$930.6M	$979.6M
YoY Change
Total Liabilities & Shareholders Equity	$2.639B	$3.301B	$3.237B
YoY Change	-20.05%	2.48%	1.38%

Cashflow Statement

Concept	2019	2018 Q4	2018 Q3
OPERATING ACTIVITIES
Net Income	$261.2M	-$26.98M	-$4.070M
YoY Change	7751.25%	-2537.4%	29.17%
Depreciation, Depletion And Amortization	$141.1M		$40.82M
YoY Change	-11.17%		-0.79%
Cash From Operating Activities	$70.63M
YoY Change	-30.02%
INVESTING ACTIVITIES
Capital Expenditures	-$21.71M
YoY Change	-36.59%
Acquisitions
YoY Change
Other Investing Activities	$868.6M
YoY Change	-1340.35%
Cash From Investing Activities	$846.9M
YoY Change	-912.3%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$101.0M
YoY Change	5.13%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$944.3M
YoY Change	-6903.0%
NET CHANGE
Cash From Operating Activities	$70.63M
Cash From Investing Activities	$846.9M
Cash From Financing Activities	-$944.3M
Net Change In Cash	-$26.77M
YoY Change	-353.66%
FREE CASH FLOW
Cash From Operating Activities	$70.63M
Capital Expenditures	-$21.71M
Free Cash Flow	$92.33M
YoY Change	-31.68%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2019	dei	Amendment Flag AmendmentFlag	false
CY2019	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
CY2019	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2019	dei	Entity Central Index Key EntityCentralIndexKey	0001482430
CY2019	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2019Q2	dei	Entity Public Float EntityPublicFloat	0	USD
CY2019	kbsriii	Periodof Increaseor Decreaseof Funding Availablefor Redemption PeriodofIncreaseorDecreaseofFundingAvailableforRedemption	P10D
CY2019	dei	Document Type DocumentType	10-K
CY2019	dei	Document Annual Report DocumentAnnualReport	true
CY2019	dei	Document Period End Date DocumentPeriodEndDate	2019-12-31
CY2019	dei	Document Transition Report DocumentTransitionReport	false
CY2019	dei	Entity File Number EntityFileNumber	000-54687
CY2019	dei	Entity Registrant Name EntityRegistrantName	KBS REAL ESTATE INVESTMENT TRUST III, INC.
CY2019	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MD
CY2019	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	27-1627696
CY2019	dei	Entity Address Address Line1 EntityAddressAddressLine1	800 Newport Center Drive
CY2019	dei	Entity Address Address Line2 EntityAddressAddressLine2	Suite 700
CY2019	dei	Entity Address City Or Town EntityAddressCityOrTown	Newport Beach
CY2019	dei	Entity Address State Or Province EntityAddressStateOrProvince	CA
CY2019	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	92660
CY2019	dei	City Area Code CityAreaCode	949
CY2019	dei	Local Phone Number LocalPhoneNumber	417-6500
CY2019	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2019	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2019	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2019	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2019	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
CY2019	dei	Entity Small Business EntitySmallBusiness	false
CY2019	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2019	dei	Entity Shell Company EntityShellCompany	false
CY2020Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	181534999	shares
CY2019Q4	us-gaap	Land Land	308920000	USD
CY2018Q4	us-gaap	Land Land	309778000	USD
CY2019Q4	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	2092928000	USD
CY2018Q4	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	2027186000	USD
CY2019Q4	kbsriii	Tenant Origination And Absorption Costs Gross TenantOriginationAndAbsorptionCostsGross	95808000	USD
CY2018Q4	kbsriii	Tenant Origination And Absorption Costs Gross TenantOriginationAndAbsorptionCostsGross	131969000	USD
CY2019Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	2497656000	USD
CY2018Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	2468933000	USD
CY2019Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	444299000	USD
CY2018Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	386417000	USD
CY2019Q4	kbsriii	Real Estate Investment Property Excluding Held Foe Sale RealEstateInvestmentPropertyExcludingHeldFoeSale	2053357000	USD
CY2018Q4	kbsriii	Real Estate Investment Property Excluding Held Foe Sale RealEstateInvestmentPropertyExcludingHeldFoeSale	2082516000	USD
CY2019Q4	us-gaap	Real Estate Heldforsale RealEstateHeldforsale	122264000	USD
CY2018Q4	us-gaap	Real Estate Heldforsale RealEstateHeldforsale	954005000	USD
CY2019Q4	kbsriii	Total Real Estate TotalRealEstate	2175621000	USD
CY2018Q4	kbsriii	Total Real Estate TotalRealEstate	3036521000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	43984000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	75023000	USD
CY2019Q4	us-gaap	Restricted Cash RestrictedCash	5288000	USD
CY2018Q4	us-gaap	Restricted Cash RestrictedCash	1015000	USD
CY2019Q4	us-gaap	Equity Method Investments EquityMethodInvestments	253371000	USD
CY2018Q4	us-gaap	Equity Method Investments EquityMethodInvestments	0	USD
CY2019Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	83446000	USD
CY2018Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	68299000	USD
CY2019Q4	kbsriii	Above Market Leases Net AboveMarketLeasesNet	566000	USD
CY2018Q4	kbsriii	Above Market Leases Net AboveMarketLeasesNet	1014000	USD
CY2019Q4	us-gaap	Assets Held For Sale Not Part Of Disposal Group AssetsHeldForSaleNotPartOfDisposalGroup	0	USD
CY2018Q4	us-gaap	Assets Held For Sale Not Part Of Disposal Group AssetsHeldForSaleNotPartOfDisposalGroup	49918000	USD
CY2019Q4	us-gaap	Prepaid Expense And Other Assets PrepaidExpenseAndOtherAssets	76651000	USD
CY2018Q4	us-gaap	Prepaid Expense And Other Assets PrepaidExpenseAndOtherAssets	69001000	USD
CY2019Q4	us-gaap	Assets Assets	2638927000	USD
CY2018Q4	us-gaap	Assets Assets	3300791000	USD
CY2019Q4	kbsriii	Notes Payable Excluding Notes Payable For Real Estate Held For Sale NotesPayableExcludingNotesPayableForRealEstateHeldForSale	1459879000	USD
CY2018Q4	kbsriii	Notes Payable Excluding Notes Payable For Real Estate Held For Sale NotesPayableExcludingNotesPayableForRealEstateHeldForSale	1567198000	USD
CY2019Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation	0	USD
CY2018Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation	617340000	USD
CY2019Q4	us-gaap	Notes Payable NotesPayable	1459879000	USD
CY2018Q4	us-gaap	Notes Payable NotesPayable	2184538000	USD
CY2019Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	71381000	USD
CY2018Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	67265000	USD
CY2019Q4	us-gaap	Due To Related Parties Current And Noncurrent DueToRelatedPartiesCurrentAndNoncurrent	7886000	USD
CY2018Q4	us-gaap	Due To Related Parties Current And Noncurrent DueToRelatedPartiesCurrentAndNoncurrent	4209000	USD
CY2019Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	9392000	USD
CY2018Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	9801000	USD
CY2019Q4	us-gaap	Off Market Lease Unfavorable OffMarketLeaseUnfavorable	9849000	USD
CY2018Q4	us-gaap	Off Market Lease Unfavorable OffMarketLeaseUnfavorable	13660000	USD
CY2019Q4	kbsriii	Liabilities Related To Real Estate Held For Sale LiabilitiesRelatedToRealEstateHeldForSale	0	USD
CY2018Q4	kbsriii	Liabilities Related To Real Estate Held For Sale LiabilitiesRelatedToRealEstateHeldForSale	3893000	USD
CY2019Q4	kbsriii	Redeemable Common Stock RedeemableCommonStock	0	USD
CY2018Q4	kbsriii	Redeemable Common Stock RedeemableCommonStock	31647000	USD
CY2019Q4	us-gaap	Other Liabilities OtherLiabilities	43526000	USD
CY2018Q4	us-gaap	Other Liabilities OtherLiabilities	30396000	USD
CY2019Q4	us-gaap	Liabilities Liabilities	1601913000	USD
CY2018Q4	us-gaap	Liabilities Liabilities	2345409000	USD
CY2019Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2018Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2019Q4	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	51704000	USD
CY2018Q4	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	24487000	USD
CY2019Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2018Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2019Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2018Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2018Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2019Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2018Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2019Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2019Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2018Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2018Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1000000000	shares
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1000000000	shares
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	180970743	shares
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	180970743	shares
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	177523853	shares
CY2018Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	177523853	shares
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	1810000	USD
CY2018Q4	us-gaap	Common Stock Value CommonStockValue	1775000	USD
CY2019Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1600416000	USD
CY2018Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1555380000	USD
CY2019Q4	us-gaap	Accumulated Distributions In Excess Of Net Income AccumulatedDistributionsInExcessOfNetIncome	617171000	USD
CY2018Q4	us-gaap	Accumulated Distributions In Excess Of Net Income AccumulatedDistributionsInExcessOfNetIncome	626543000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	985055000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	930612000	USD
CY2019Q4	us-gaap	Minority Interest MinorityInterest	255000	USD
CY2018Q4	us-gaap	Minority Interest MinorityInterest	283000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	985310000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	930895000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2638927000	USD
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	3300791000	USD
CY2019	us-gaap	Lease Income LeaseIncome	355438000	USD
CY2018	us-gaap	Lease Income LeaseIncome	393121000	USD
CY2017	us-gaap	Lease Income LeaseIncome	382578000	USD
CY2019	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	29834000	USD
CY2018	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	33136000	USD
CY2017	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	31471000	USD
CY2019	us-gaap	Revenues Revenues	385272000	USD
CY2018	us-gaap	Revenues Revenues	426257000	USD
CY2017	us-gaap	Revenues Revenues	414049000	USD
CY2019	us-gaap	Cost Of Other Property Operating Expense CostOfOtherPropertyOperatingExpense	92271000	USD
CY2018	us-gaap	Cost Of Other Property Operating Expense CostOfOtherPropertyOperatingExpense	101759000	USD
CY2017	us-gaap	Cost Of Other Property Operating Expense CostOfOtherPropertyOperatingExpense	97477000	USD
CY2019	us-gaap	Real Estate Taxes And Insurance RealEstateTaxesAndInsurance	62989000	USD
CY2018	us-gaap	Real Estate Taxes And Insurance RealEstateTaxesAndInsurance	69405000	USD
CY2017	us-gaap	Real Estate Taxes And Insurance RealEstateTaxesAndInsurance	65325000	USD
CY2019	us-gaap	Affiliate Costs AffiliateCosts	24614000	USD
CY2018	us-gaap	Affiliate Costs AffiliateCosts	27152000	USD
CY2017	us-gaap	Affiliate Costs AffiliateCosts	25905000	USD
CY2019	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	8418000	USD
CY2018	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	9597000	USD
CY2017	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	4723000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	141102000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	158847000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	164289000	USD
CY2019	us-gaap	Interest Expense InterestExpense	114272000	USD
CY2018	us-gaap	Interest Expense InterestExpense	72209000	USD
CY2017	us-gaap	Interest Expense InterestExpense	55008000	USD
CY2019	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	8706000	USD
CY2018	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	0	USD
CY2017	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	0	USD
CY2019	us-gaap	Costs And Expenses CostsAndExpenses	452372000	USD
CY2018	us-gaap	Costs And Expenses CostsAndExpenses	438969000	USD
CY2017	us-gaap	Costs And Expenses CostsAndExpenses	412727000	USD
CY2019	kbsriii	Otherincome Other OtherincomeOther	4089000	USD
CY2018	kbsriii	Otherincome Other OtherincomeOther	1905000	USD
CY2017	kbsriii	Otherincome Other OtherincomeOther	649000	USD
CY2019	us-gaap	Investment Income Interest InvestmentIncomeInterest	655000	USD
CY2018	us-gaap	Investment Income Interest InvestmentIncomeInterest	312000	USD
CY2017	us-gaap	Investment Income Interest InvestmentIncomeInterest	170000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-1443000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	2088000	USD
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-1000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-2229000	USD
CY2018	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-225000	USD
CY2017	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-766000	USD
CY2019	kbsriii	Gain Loss On Sale Of Real Estate GainLossOnSaleOfRealEstate	327211000	USD
CY2018	kbsriii	Gain Loss On Sale Of Real Estate GainLossOnSaleOfRealEstate	11942000	USD
CY2017	kbsriii	Gain Loss On Sale Of Real Estate GainLossOnSaleOfRealEstate	0	USD
CY2019	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	328283000	USD
CY2018	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	16022000	USD
CY2017	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	52000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	261183000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	3310000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	1374000	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-28000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-17000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	261211000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	3327000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	1374000	USD
CY2019	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	1.49
CY2018	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.02
CY2017	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.01
CY2019	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	174874422	shares
CY2018	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	177594478	shares
CY2017	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	181138045	shares
CY2019	us-gaap	Profit Loss ProfitLoss	261183000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	3327000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	1374000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	95000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	900000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	205000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-1508000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-110000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	2408000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	261183000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	3217000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	3782000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-28000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-17000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	261211000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	3234000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	3782000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1193376000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	1374000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	2408000	USD
CY2017	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	59785000	USD
CY2017	kbsriii	Adjustments To Additional Paid In Capital Transfers From Redeemable Common Stock AdjustmentsToAdditionalPaidInCapitalTransfersFromRedeemableCommonStock	2086000	USD
CY2017	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	61871000	USD
CY2019	us-gaap	Dividends Common Stock DividendsCommonStock	161887000	USD
CY2017	us-gaap	Dividends Common Stock DividendsCommonStock	117738000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Stock Issued Issuance Costs AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts	12000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1079408000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	3310000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-110000	USD
CY2018	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	56136000	USD
CY2018	kbsriii	Adjustments To Additional Paid In Capital Transfers From Redeemable Common Stock AdjustmentsToAdditionalPaidInCapitalTransfersFromRedeemableCommonStock	3649000	USD
CY2018	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	96064000	USD
CY2018	us-gaap	Dividends Common Stock DividendsCommonStock	115419000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Stock Issued Issuance Costs AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts	15000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	930895000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	261183000	USD
CY2019	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	51704000	USD
CY2019	kbsriii	Adjustments To Additional Paid In Capital Transfers From Redeemable Common Stock AdjustmentsToAdditionalPaidInCapitalTransfersFromRedeemableCommonStock	4427000	USD
CY2019	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	100996000	USD
CY2019	us-gaap	Dividends Common Stock Stock DividendsCommonStockStock	0	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Stock Issued Issuance Costs AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts	16000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	985310000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	261183000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	3310000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	1374000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	141102000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	158847000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	164289000	USD
CY2019	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	8706000	USD
CY2018	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	0	USD
CY2017	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	0	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-1443000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	2088000	USD
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-1000	USD
CY2019	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	6224000	USD
CY2018	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	9063000	USD
CY2017	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	12402000	USD
CY2019	kbsriii	Real Estate Loss Dueto Property Damages RealEstateLossDuetoPropertyDamages	0	USD
CY2018	kbsriii	Real Estate Loss Dueto Property Damages RealEstateLossDuetoPropertyDamages	0	USD
CY2017	kbsriii	Real Estate Loss Dueto Property Damages RealEstateLossDuetoPropertyDamages	8401000	USD
CY2019	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	0	USD
CY2018	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1230000	USD
CY2017	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1863000	USD
CY2019	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-3515000	USD
CY2018	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-5350000	USD
CY2017	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-6710000	USD
CY2019	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	5385000	USD
CY2018	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	6356000	USD
CY2017	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	4952000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-2229000	USD
CY2018	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-225000	USD
CY2017	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-766000	USD
CY2019	us-gaap	Unrealized Gain Loss On Derivatives And Commodity Contracts UnrealizedGainLossOnDerivativesAndCommodityContracts	-35664000	USD
CY2018	us-gaap	Unrealized Gain Loss On Derivatives And Commodity Contracts UnrealizedGainLossOnDerivativesAndCommodityContracts	11192000	USD
CY2017	us-gaap	Unrealized Gain Loss On Derivatives And Commodity Contracts UnrealizedGainLossOnDerivativesAndCommodityContracts	10509000	USD
CY2019	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	327211000	USD
CY2018	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	11942000	USD
CY2017	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	0	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	10600000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	11230000	USD
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	5220000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	32947000	USD
CY2018	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	21476000	USD
CY2017	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	25126000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-933000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	1236000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	5373000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-7114000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	1154000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-2731000	USD
CY2019	us-gaap	Increase Decrease In Due To Related Parties IncreaseDecreaseInDueToRelatedParties	3460000	USD
CY2018	us-gaap	Increase Decrease In Due To Related Parties IncreaseDecreaseInDueToRelatedParties	910000	USD
CY2017	us-gaap	Increase Decrease In Due To Related Parties IncreaseDecreaseInDueToRelatedParties	118000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	70628000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	100927000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	124439000	USD
CY2019	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	79931000	USD
CY2018	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	88721000	USD
CY2017	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	81949000	USD
CY2019	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	931489000	USD
CY2018	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	41649000	USD
CY2017	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	0	USD
CY2019	kbsriii	Proceeds From Sale Equity Securities Fvni ProceedsFromSaleEquitySecuritiesFVNI	16186000	USD
CY2018	kbsriii	Proceeds From Sale Equity Securities Fvni ProceedsFromSaleEquitySecuritiesFVNI	0	USD
CY2017	kbsriii	Proceeds From Sale Equity Securities Fvni ProceedsFromSaleEquitySecuritiesFVNI	0	USD
CY2019	us-gaap	Payments For Construction In Process PaymentsForConstructionInProcess	21706000	USD
CY2018	us-gaap	Payments For Construction In Process PaymentsForConstructionInProcess	34229000	USD
CY2017	us-gaap	Payments For Construction In Process PaymentsForConstructionInProcess	45734000	USD
CY2019	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	0	USD
CY2018	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	426000	USD
CY2017	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	33708000	USD
CY2019	kbsriii	Payments Of Post Closing Acquisition Costs PaymentsOfPostClosingAcquisitionCosts	1014000	USD
CY2018	kbsriii	Payments Of Post Closing Acquisition Costs PaymentsOfPostClosingAcquisitionCosts	0	USD
CY2017	kbsriii	Payments Of Post Closing Acquisition Costs PaymentsOfPostClosingAcquisitionCosts	0	USD
CY2019	us-gaap	Payments To Acquire Interest In Joint Venture PaymentsToAcquireInterestInJointVenture	0	USD
CY2018	us-gaap	Payments To Acquire Interest In Joint Venture PaymentsToAcquireInterestInJointVenture	28268000	USD
CY2017	us-gaap	Payments To Acquire Interest In Joint Venture PaymentsToAcquireInterestInJointVenture	0	USD
CY2019	kbsriii	Escrow Deposits Relatedto Tenant Improvements EscrowDepositsRelatedtoTenantImprovements	-972000	USD
CY2018	kbsriii	Escrow Deposits Relatedto Tenant Improvements EscrowDepositsRelatedtoTenantImprovements	-1111000	USD
CY2017	kbsriii	Escrow Deposits Relatedto Tenant Improvements EscrowDepositsRelatedtoTenantImprovements	2084000	USD
CY2019	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	867000	USD
CY2018	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	4629000	USD
CY2017	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	0	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	846863000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-104255000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-163475000	USD
CY2019	us-gaap	Proceeds From Notes Payable ProceedsFromNotesPayable	377589000	USD
CY2018	us-gaap	Proceeds From Notes Payable ProceedsFromNotesPayable	507909000	USD
CY2017	us-gaap	Proceeds From Notes Payable ProceedsFromNotesPayable	942184000	USD
CY2019	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	1107369000	USD
CY2018	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	335243000	USD
CY2017	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	778670000	USD
CY2019	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	2609000	USD
CY2018	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	3243000	USD
CY2017	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	11206000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	100996000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	96064000	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	61871000	USD
CY2019	kbsriii	Payments Of Prepaid Other Offering Costs PaymentsOfPrepaidOtherOfferingCosts	264000	USD
CY2018	kbsriii	Payments Of Prepaid Other Offering Costs PaymentsOfPrepaidOtherOfferingCosts	0	USD
CY2017	kbsriii	Payments Of Prepaid Other Offering Costs PaymentsOfPrepaidOtherOfferingCosts	0	USD
CY2019	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	16000	USD
CY2018	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	15000	USD
CY2017	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	12000	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	110592000	USD
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	59464000	USD
CY2017	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	57971000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-944257000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	13880000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	32454000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-26766000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	10552000	USD
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-6582000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	76038000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	65486000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	72068000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	49272000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	76038000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	65486000	USD
CY2019	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	1711000	USD
CY2018	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	2832000	USD
CY2017	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	2433000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	75471000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	76107000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	58472000	USD
CY2019	kbsriii	Non Cash Shares Received In Connection With Transaction NonCashSharesReceivedInConnectionWithTransaction	271000000	USD
CY2018	kbsriii	Non Cash Shares Received In Connection With Transaction NonCashSharesReceivedInConnectionWithTransaction	0	USD
CY2017	kbsriii	Non Cash Shares Received In Connection With Transaction NonCashSharesReceivedInConnectionWithTransaction	0	USD
CY2019	kbsriii	Non Cash Increase Decrease In Distributions Payable NonCashIncreaseDecreaseInDistributionsPayable	9392000	USD
CY2018	kbsriii	Non Cash Increase Decrease In Distributions Payable NonCashIncreaseDecreaseInDistributionsPayable	9801000	USD
CY2017	kbsriii	Non Cash Increase Decrease In Distributions Payable NonCashIncreaseDecreaseInDistributionsPayable	9982000	USD
CY2019	kbsriii	Distributions Paid To Common Stockholders Through Common Stock Issuances Pursuant To Dividend Reinvestment Plan DistributionsPaidToCommonStockholdersThroughCommonStockIssuancesPursuantToDividendReinvestmentPlan	51704000	USD
CY2018	kbsriii	Distributions Paid To Common Stockholders Through Common Stock Issuances Pursuant To Dividend Reinvestment Plan DistributionsPaidToCommonStockholdersThroughCommonStockIssuancesPursuantToDividendReinvestmentPlan	56136000	USD
CY2017	kbsriii	Distributions Paid To Common Stockholders Through Common Stock Issuances Pursuant To Dividend Reinvestment Plan DistributionsPaidToCommonStockholdersThroughCommonStockIssuancesPursuantToDividendReinvestmentPlan	59785000	USD
CY2019	kbsriii	Noncash Increaseinredeemablecommonstock NoncashIncreaseinredeemablecommonstock	0	USD
CY2018	kbsriii	Noncash Increaseinredeemablecommonstock NoncashIncreaseinredeemablecommonstock	31647000	USD
CY2017	kbsriii	Noncash Increaseinredeemablecommonstock NoncashIncreaseinredeemablecommonstock	18869000	USD
CY2019	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	26310000	USD
CY2018	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	17426000	USD
CY2017	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	24731000	USD
CY2019	kbsriii	Increasein Construction In Progress Payable IncreaseinConstructionInProgressPayable	2144000	USD
CY2018	kbsriii	Increasein Construction In Progress Payable IncreaseinConstructionInProgressPayable	5148000	USD
CY2017	kbsriii	Increasein Construction In Progress Payable IncreaseinConstructionInProgressPayable	4360000	USD
CY2019	kbsriii	Increaseinconstructioninprogressduetoaffiliate Increaseinconstructioninprogressduetoaffiliate	1133000	USD
CY2018	kbsriii	Increaseinconstructioninprogressduetoaffiliate Increaseinconstructioninprogressduetoaffiliate	916000	USD
CY2017	kbsriii	Increaseinconstructioninprogressduetoaffiliate Increaseinconstructioninprogressduetoaffiliate	566000	USD
CY2019	kbsriii	Increase In Acquisition Fees Due To Affiliate IncreaseInAcquisitionFeesDueToAffiliate	0	USD
CY2018	kbsriii	Increase In Acquisition Fees Due To Affiliate IncreaseInAcquisitionFeesDueToAffiliate	0	USD
CY2017	kbsriii	Increase In Acquisition Fees Due To Affiliate IncreaseInAcquisitionFeesDueToAffiliate	290000	USD
CY2019	kbsriii	Realestateconsolidatedinconnectionwithjointventurepurchase Realestateconsolidatedinconnectionwithjointventurepurchase	0	USD
CY2018	kbsriii	Realestateconsolidatedinconnectionwithjointventurepurchase Realestateconsolidatedinconnectionwithjointventurepurchase	132100000	USD
CY2017	kbsriii	Realestateconsolidatedinconnectionwithjointventurepurchase Realestateconsolidatedinconnectionwithjointventurepurchase	0	USD
CY2019	kbsriii	Notepayableassumedinconnectionwithjointventurepurchase Notepayableassumedinconnectionwithjointventurepurchase	0	USD
CY2018	kbsriii	Notepayableassumedinconnectionwithjointventurepurchase Notepayableassumedinconnectionwithjointventurepurchase	66570000	USD
CY2017	kbsriii	Notepayableassumedinconnectionwithjointventurepurchase Notepayableassumedinconnectionwithjointventurepurchase	0	USD
CY2019	kbsriii	Liabilitiesassumedinconnectionwithjointventurepurchase Liabilitiesassumedinconnectionwithjointventurepurchase	0	USD
CY2018	kbsriii	Liabilitiesassumedinconnectionwithjointventurepurchase Liabilitiesassumedinconnectionwithjointventurepurchase	3173000	USD
CY2017	kbsriii	Liabilitiesassumedinconnectionwithjointventurepurchase Liabilitiesassumedinconnectionwithjointventurepurchase	0	USD
	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	332600000	USD
	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	311400000	USD
CY2014Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	258462	shares
CY2014Q4	us-gaap	Common Stock Value CommonStockValue	2400000	USD
CY2017Q4	kbsriii	Estimated Value Per Share Of Companys Common Stock EstimatedValuePerShareOfCompanysCommonStock	11.73
CY2019	us-gaap	Use Of Estimates UseOfEstimates	The preparation of the consolidated financial statements and accompanying notes thereto in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could materially differ from those estimates.
CY2019	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="text-indent:22.5pt;margin-bottom:6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">Certain amounts in the Company’s prior period consolidated financial statements have been reclassified to conform to the current period presentation. These reclassifications have not changed the results of operations of prior periods. Upon adoption of the lease accounting standards of Topic 842 on January 1, 2019 (described below), the Company accounted for tenant reimbursements for property taxes, insurance and common area maintenance as variable lease payments and recorded these amounts as rental income on the statement of operations. For the years ended December 31, 2018 and 2017, the Company reclassified $72.2 million and $68.0 million, respectively, of tenant reimbursement revenue for property taxes, insurance, and common area maintenance to rental income for comparability purposes.</span></div><div style="text-indent:22.5pt;margin-bottom:6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">In addition, during the year ended December 31, 2019, the Company sold 11 office properties and classified one multifamily apartment complex as held for sale.</span><span style="background-color:rgb(255,255,255, 0.0);color:#ff0000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;"> </span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">As a result, certain assets and liabilities related to these properties were reclassified to held for sale on the consolidated balance sheets for all periods presented.</span></div>
CY2019	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	8700000	USD
CY2019	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	8700000	USD
CY2018	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	0	USD
CY2017	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	0	USD
CY2019Q4	kbsriii	Dividend Reinvestment Plan Purchase Price Per Shareas Percentof Estimated Value DividendReinvestmentPlanPurchasePricePerShareasPercentofEstimatedValue	0.95
CY2018Q1	kbsriii	Dividend Reinvestment Plan Purchase Price Per Share DividendReinvestmentPlanPurchasePricePerShare	11.15
CY2018Q4	kbsriii	Estimated Value Per Share Of Companys Common Stock EstimatedValuePerShareOfCompanysCommonStock	12.02
CY2019Q1	kbsriii	Dividend Reinvestment Plan Purchase Price Per Share DividendReinvestmentPlanPurchasePricePerShare	11.42
CY2019Q4	kbsriii	Estimated Value Per Share Of Companys Common Stock EstimatedValuePerShareOfCompanysCommonStock	11.65
CY2019Q4	kbsriii	Common Stock Special Dividends Per Share Declared CommonStockSpecialDividendsPerShareDeclared	0.80
CY2019	kbsriii	Periodof Termination Notice PeriodofTerminationNotice	P10D
CY2019	kbsriii	Maximum Percentage Of Weighted Average Shares Outstanding Available For Redemption During Any Calendar Year MaximumPercentageOfWeightedAverageSharesOutstandingAvailableForRedemptionDuringAnyCalendarYear	0.05
CY2018Q2	kbsriii	Redemption Price Percentage Of Most Recent Estimated Value Per Share RedemptionPricePercentageOfMostRecentEstimatedValuePerShare	0.95
CY2017Q4	kbsriii	Estimated Value Per Share Of Companys Common Stock EstimatedValuePerShareOfCompanysCommonStock	11.73
CY2018Q4	kbsriii	Estimated Value Per Share Of Companys Common Stock EstimatedValuePerShareOfCompanysCommonStock	12.02
CY2019Q4	kbsriii	Estimated Value Per Share Of Companys Common Stock EstimatedValuePerShareOfCompanysCommonStock	11.65
CY2018	kbsriii	Funds Availablefor Redemptionof Shares FundsAvailableforRedemptionofShares	56100000	USD
CY2019Q4	kbsriii	Additional Fundsfor Share Redemption AdditionalFundsforShareRedemption	40000000.0	USD
CY2019	kbsriii	Funds Availablefor Redemptionof Shares FundsAvailableforRedemptionofShares	51700000	USD
CY2019	kbsriii	Shareredemptionprogramterminationperiod Shareredemptionprogramterminationperiod	P10D
CY2019Q4	kbsriii	Origination Fee Percent OriginationFeePercent	0.010
CY2019Q4	kbsriii	Non Compounded Returnon Net Invested Capital NonCompoundedReturnonNetInvestedCapital	0.080
CY2019Q4	kbsriii	Non Compounded Returnon Net Invested Capital NonCompoundedReturnonNetInvestedCapital	0.08
CY2019Q4	kbsriii	Non Compounded Returnon Net Invested Capital NonCompoundedReturnonNetInvestedCapital	0.08
CY2018	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2017	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2019Q4	kbsriii	Common Stock Special Dividends Per Share Declared CommonStockSpecialDividendsPerShareDeclared	0.80
CY2019Q4	kbsriii	Common Stock Special Dividends Paid CommonStockSpecialDividendsPaid	48500000	USD
CY2019Q4	kbsriii	Common Stock Special Dividends Paid Percent CommonStockSpecialDividendsPaidPercent	0.35
CY2019Q4	kbsriii	Stock Issued During Period Shares Special Dividends StockIssuedDuringPeriodSharesSpecialDividends	90000000.0	shares
CY2019Q4	kbsriii	Stock Issued During Period Shares Special Dividends Percent StockIssuedDuringPeriodSharesSpecialDividendsPercent	0.65
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.450
CY2018	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.650
CY2017	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.650
CY2017	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	12400000	USD
	kbsriii	Common Share Distribution Rate Per Share Per Day Declared CommonShareDistributionRatePerSharePerDayDeclared	0.00178082
CY2019	kbsriii	Common Share Distribution Rate Per Share Per Day Declared CommonShareDistributionRatePerSharePerDayDeclared	0.05416667
CY2019	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2019Q4	us-gaap	Area Of Real Estate Property AreaOfRealEstateProperty	7800000	sqft
CY2019Q4	kbsriii	Percentage Of Real Estate Portfolio Occupied PercentageOfRealEstatePortfolioOccupied	0.86
CY2019Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	2497656000	USD
CY2019Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	444299000	USD
CY2019Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	2053357000	USD
CY2018	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1200000	USD
CY2017	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1900000	USD
CY2018	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	9100000	USD
CY2019	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	6200000	USD
CY2019Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	80000000.0	USD
CY2018Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	62700000	USD
CY2019Q4	us-gaap	Incentive To Lessee IncentiveToLessee	21000000.0	USD
CY2018Q4	us-gaap	Incentive To Lessee IncentiveToLessee	11100000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Next Twelve Months LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths	218688000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Two Years LessorOperatingLeasePaymentsToBeReceivedTwoYears	211002000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Three Years LessorOperatingLeasePaymentsToBeReceivedThreeYears	187343000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Four Years LessorOperatingLeasePaymentsToBeReceivedFourYears	160683000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Five Years LessorOperatingLeasePaymentsToBeReceivedFiveYears	140664000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Thereafter LessorOperatingLeasePaymentsToBeReceivedThereafter	580149000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received LessorOperatingLeasePaymentsToBeReceived	1498529000	USD
CY2019Q4	kbsriii	Number Of Tenants NumberOfTenants	660	tenant
CY2019	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	8700000	USD
CY2019	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	8700000	USD
CY2018Q4	kbsriii	Above Market Leases Accumulated Amortization AboveMarketLeasesAccumulatedAmortization	2963000	USD
CY2019Q4	kbsriii	Off Market Lease Unfavorable Accumulated Amortization OffMarketLeaseUnfavorableAccumulatedAmortization	15781000	USD
CY2018	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	0	USD
CY2017	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	0	USD
CY2019Q4	kbsriii	Tenant Origination And Absorption Costs Gross TenantOriginationAndAbsorptionCostsGross	95808000	USD
CY2018Q4	kbsriii	Tenant Origination And Absorption Costs Gross TenantOriginationAndAbsorptionCostsGross	131969000	USD
CY2019Q4	kbsriii	Above Market Leases Gross AboveMarketLeasesGross	2661000	USD
CY2018Q4	kbsriii	Above Market Leases Gross AboveMarketLeasesGross	3977000	USD
CY2019Q4	kbsriii	Off Market Lease Unfavorable Gross OffMarketLeaseUnfavorableGross	25630000	USD
CY2018Q4	kbsriii	Off Market Lease Unfavorable Gross OffMarketLeaseUnfavorableGross	31046000	USD
CY2019Q4	kbsriii	Tenant Origination And Absorption Costs Accumulated Amortization TenantOriginationAndAbsorptionCostsAccumulatedAmortization	56886000	USD
CY2018Q4	kbsriii	Tenant Origination And Absorption Costs Accumulated Amortization TenantOriginationAndAbsorptionCostsAccumulatedAmortization	77447000	USD
CY2019Q4	kbsriii	Above Market Leases Accumulated Amortization AboveMarketLeasesAccumulatedAmortization	2095000	USD
CY2018Q4	kbsriii	Off Market Lease Unfavorable Accumulated Amortization OffMarketLeaseUnfavorableAccumulatedAmortization	17386000	USD
CY2019Q4	kbsriii	Tenant Origination And Absorption Costs Net TenantOriginationAndAbsorptionCostsNet	38922000	USD
CY2018Q4	kbsriii	Tenant Origination And Absorption Costs Net TenantOriginationAndAbsorptionCostsNet	54522000	USD
CY2019Q4	kbsriii	Above Market Leases Net AboveMarketLeasesNet	566000	USD
CY2018Q4	kbsriii	Above Market Leases Net AboveMarketLeasesNet	1014000	USD
CY2019Q4	us-gaap	Off Market Lease Unfavorable OffMarketLeaseUnfavorable	9849000	USD
CY2018Q4	us-gaap	Off Market Lease Unfavorable OffMarketLeaseUnfavorable	13660000	USD
CY2019	kbsriii	Tenant Origination And Absorption Costs Amortization Expense TenantOriginationAndAbsorptionCostsAmortizationExpense	21072000	USD
CY2018	kbsriii	Tenant Origination And Absorption Costs Amortization Expense TenantOriginationAndAbsorptionCostsAmortizationExpense	31201000	USD
CY2017	kbsriii	Tenant Origination And Absorption Costs Amortization Expense TenantOriginationAndAbsorptionCostsAmortizationExpense	41090000	USD
CY2019	kbsriii	Above Market Leases Amortization Expense AboveMarketLeasesAmortizationExpense	955000	USD
CY2018	kbsriii	Above Market Leases Amortization Expense AboveMarketLeasesAmortizationExpense	1712000	USD
CY2017	kbsriii	Above Market Leases Amortization Expense AboveMarketLeasesAmortizationExpense	2285000	USD
CY2019	kbsriii	Off Market Lease Unfavorable Amortization Expense OffMarketLeaseUnfavorableAmortizationExpense	4470000	USD
CY2018	kbsriii	Off Market Lease Unfavorable Amortization Expense OffMarketLeaseUnfavorableAmortizationExpense	7062000	USD
CY2017	kbsriii	Off Market Lease Unfavorable Amortization Expense OffMarketLeaseUnfavorableAmortizationExpense	8995000	USD
CY2019Q4	us-gaap	Below Market Lease Amortization Income Next Twelve Months BelowMarketLeaseAmortizationIncomeNextTwelveMonths	2924000	USD
CY2019Q4	us-gaap	Below Market Lease Amortization Income Year Two BelowMarketLeaseAmortizationIncomeYearTwo	2681000	USD
CY2019Q4	us-gaap	Below Market Lease Amortization Income Year Three BelowMarketLeaseAmortizationIncomeYearThree	1910000	USD
CY2019Q4	us-gaap	Below Market Lease Amortization Income Year Four BelowMarketLeaseAmortizationIncomeYearFour	1256000	USD
CY2019Q4	us-gaap	Below Market Lease Amortization Income Year Five BelowMarketLeaseAmortizationIncomeYearFive	534000	USD
CY2019Q4	us-gaap	Below Market Lease Amortization Income After Year Five BelowMarketLeaseAmortizationIncomeAfterYearFive	544000	USD
CY2019Q4	us-gaap	Below Market Lease Net BelowMarketLeaseNet	9849000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	2100000	USD
CY2019Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	1466376000	USD
CY2018Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	2196154000	USD
CY2019Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	6497000	USD
CY2018Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	11616000	USD
CY2019Q4	us-gaap	Notes Payable NotesPayable	1459879000	USD
CY2018Q4	us-gaap	Notes Payable NotesPayable	2184538000	USD
CY2019	us-gaap	Interest Expense InterestExpense	114300000	USD
CY2018	us-gaap	Interest Expense InterestExpense	72200000	USD
CY2017	us-gaap	Interest Expense InterestExpense	55000000.0	USD
CY2019	kbsriii	Derivatives Increase Decrease Interest Expense DerivativesIncreaseDecreaseInterestExpense	33100000	USD
CY2018	kbsriii	Derivatives Increase Decrease Interest Expense DerivativesIncreaseDecreaseInterestExpense	11100000	USD
CY2017	kbsriii	Derivatives Increase Decrease Interest Expense DerivativesIncreaseDecreaseInterestExpense	3100000	USD
CY2019	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	1700000	USD
CY2018	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	2800000	USD
CY2017	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	2400000	USD
CY2019Q4	us-gaap	Interest Payable Current InterestPayableCurrent	4500000	USD
CY2018Q4	us-gaap	Interest Payable Current InterestPayableCurrent	6800000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	798018000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	196113000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	93000000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	0	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	379245000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	0	USD
CY2019Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	1466376000	USD
CY2019	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-33103000	USD
CY2018	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	11102000	USD
CY2017	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	3116000	USD
CY2019	us-gaap	Unrealized Gain Loss On Cash Flow Hedging Instruments UnrealizedGainLossOnCashFlowHedgingInstruments	0	USD
CY2019	us-gaap	Unrealized Gain Loss On Cash Flow Hedging Instruments UnrealizedGainLossOnCashFlowHedgingInstruments	0	USD
CY2018	us-gaap	Unrealized Gain Loss On Cash Flow Hedging Instruments UnrealizedGainLossOnCashFlowHedgingInstruments	95000	USD
CY2017	us-gaap	Unrealized Gain Loss On Cash Flow Hedging Instruments UnrealizedGainLossOnCashFlowHedgingInstruments	900000	USD
CY2019Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	1466376000	USD
CY2018Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	2196154000	USD
CY2019	kbsriii	Real Estate Properties Measured At Estimated Fair Value RealEstatePropertiesMeasuredAtEstimatedFairValue	1	property
CY2019	us-gaap	Payment For Administrative Fees PaymentForAdministrativeFees	357000	USD
CY2018	us-gaap	Payment For Administrative Fees PaymentForAdministrativeFees	325000	USD
CY2017	us-gaap	Payment For Administrative Fees PaymentForAdministrativeFees	242000	USD
CY2019Q4	kbsriii	Non Compounded Returnon Net Invested Capital NonCompoundedReturnonNetInvestedCapital	0.08
CY2019Q1	us-gaap	Revenues Revenues	111378000	USD
CY2019Q2	us-gaap	Revenues Revenues	114509000	USD
CY2019Q3	us-gaap	Revenues Revenues	82981000	USD
CY2019Q4	us-gaap	Revenues Revenues	76404000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	-26678000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	-28115000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	316884000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	-880000	USD
CY2019Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.15
CY2019Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.16
CY2019Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	1.82
CY2019Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.02
CY2019Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.163
CY2019Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.163
CY2019Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.163
CY2019Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.961
CY2018Q1	us-gaap	Revenues Revenues	104179000	USD
CY2018Q2	us-gaap	Revenues Revenues	107576000	USD
CY2018Q3	us-gaap	Revenues Revenues	106145000	USD
CY2018Q4	us-gaap	Revenues Revenues	108357000	USD
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	16630000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	17749000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	-4070000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	-26982000	USD
CY2018Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.09
CY2018Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	0.10
CY2018Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.02
CY2018Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.15
CY2018Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.160
CY2018Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.162
CY2018Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.164
CY2018Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.164
CY2019Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Land RealEstateAndAccumulatedDepreciationInitialCostOfLand	325937000	USD
CY2019Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements	2062955000	USD
CY2019Q4	kbsriii	Real Estate And Accumulated Depreciation Initial Cost Of Land And Buildings And Improvements RealEstateAndAccumulatedDepreciationInitialCostOfLandAndBuildingsAndImprovements	2388892000	USD
CY2019Q4	us-gaap	Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Carrying Costs RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts	236110000	USD
CY2019Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Land RealEstateAndAccumulatedDepreciationCarryingAmountOfLand	313103000	USD
CY2019Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements	2311899000	USD
CY2019Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	2625002000	USD
CY2019Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	449381000	USD
CY2019Q4	srt	Real Estate Federal Income Tax Basis RealEstateFederalIncomeTaxBasis	2800000000	USD
CY2018Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	3573511000	USD
CY2017Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	3403500000	USD
CY2016Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	3333649000	USD
CY2019	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	0	USD
CY2018	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	132100000	USD
CY2019	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	1011385000	USD
CY2018	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	33581000	USD
CY2017	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	0	USD
CY2019	us-gaap	Real Estate Improvements RealEstateImprovements	102921000	USD
CY2018	us-gaap	Real Estate Improvements RealEstateImprovements	84362000	USD
CY2017	us-gaap	Real Estate Improvements RealEstateImprovements	92003000	USD
CY2019	kbsriii	Sec Schedule Iii Real Estate Constructionin Progress SECScheduleIIIRealEstateConstructioninProgress	19035000	USD
CY2018	kbsriii	Sec Schedule Iii Real Estate Constructionin Progress SECScheduleIIIRealEstateConstructioninProgress	35518000	USD
CY2017	kbsriii	Sec Schedule Iii Real Estate Constructionin Progress SECScheduleIIIRealEstateConstructioninProgress	45973000	USD
CY2019	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	31427000	USD
CY2018	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	48388000	USD
CY2017	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	59724000	USD
CY2019	kbsriii	Sec Schedule Iii Real Estate Lossdueto Property Damages SECScheduleIIIRealEstateLossduetoPropertyDamages	0	USD
CY2018	kbsriii	Sec Schedule Iii Real Estate Lossdueto Property Damages SECScheduleIIIRealEstateLossduetoPropertyDamages	0	USD
CY2017	kbsriii	Sec Schedule Iii Real Estate Lossdueto Property Damages SECScheduleIIIRealEstateLossduetoPropertyDamages	8401000	USD
CY2019	kbsriii	Sec Schedule Iii Real Estate Impairments SECScheduleIIIRealEstateImpairments	27653000	USD
CY2018	kbsriii	Sec Schedule Iii Real Estate Impairments SECScheduleIIIRealEstateImpairments	0	USD
CY2017	kbsriii	Sec Schedule Iii Real Estate Impairments SECScheduleIIIRealEstateImpairments	0	USD
CY2017	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	0	USD
CY2019Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	2625002000	USD
CY2018Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	3573511000	USD
CY2017Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	3403500000	USD
CY2018Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	536990000	USD
CY2017Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	441366000	USD
CY2016Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	344794000	USD
CY2019	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	136040000	USD
CY2018	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	149569000	USD
CY2017	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	156296000	USD
CY2019	us-gaap	Real Estate Accumulated Depreciation Other Deductions RealEstateAccumulatedDepreciationOtherDeductions	31427000	USD
CY2018	us-gaap	Real Estate Accumulated Depreciation Other Deductions RealEstateAccumulatedDepreciationOtherDeductions	48388000	USD
CY2017	us-gaap	Real Estate Accumulated Depreciation Other Deductions RealEstateAccumulatedDepreciationOtherDeductions	59724000	USD
CY2019	kbsriii	Sec Schedule Iii Real Estate Accumulated Depreciation Impairments SECScheduleIIIRealEstateAccumulatedDepreciationImpairments	19163000	USD
CY2018	kbsriii	Sec Schedule Iii Real Estate Accumulated Depreciation Impairments SECScheduleIIIRealEstateAccumulatedDepreciationImpairments	0	USD
CY2017	kbsriii	Sec Schedule Iii Real Estate Accumulated Depreciation Impairments SECScheduleIIIRealEstateAccumulatedDepreciationImpairments	0	USD
CY2019	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	173059000	USD
CY2018	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	5557000	USD
CY2017	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	0	USD
CY2019Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	449381000	USD
CY2018Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	536990000	USD
CY2017Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	441366000	USD

Files In Submission

Name	View Source	Status
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0001482430-20-000013-index.html	Edgar Link	pending
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kbsriiiq42019exhibit103.htm	Edgar Link	pending
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kbsriiiq42019exhibit105.htm	Edgar Link	pending
kbsriiiq42019exhibit106.htm	Edgar Link	pending
kbsriiiq42019exhibit107.htm	Edgar Link	pending
kbsriiiq42019exhibit108.htm	Edgar Link	pending
kbsriiiq42019exhibit109.htm	Edgar Link	pending
kbsriiiq42019exhibit211.htm	Edgar Link	pending
kbsriiiq42019exhibit231.htm	Edgar Link	pending
kbsriiiq42019exhibit311.htm	Edgar Link	pending
kbsriiiq42019exhibit312.htm	Edgar Link	pending
kbsriiiq42019exhibit321.htm	Edgar Link	pending
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kbsriiiq42019exhibit43.htm	Edgar Link	pending
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$KBSR
KBS Real Estate Investment Trust III, Inc. Stock $kbsr

2019 Form 10-K Financial Statement

#000148243020000013 Filed on March 06, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$KBSR KBS Real Estate Investment Trust III, Inc. Stock $kbsr

2019 Form 10-K Financial Statement

#000148243020000013 Filed on March 06, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$KBSR
KBS Real Estate Investment Trust III, Inc. Stock $kbsr