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

$kbsr Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-K Financial Statement

#000148243022000016 Filed on March 31, 2022

Income Statement

Concept	2021 Q4	2021	2020 Q4
Revenue	$75.11M	$296.8M	$77.74M
YoY Change	-3.38%	-3.31%	1.75%
Cost Of Revenue	$38.72M	$146.3M
YoY Change		-2.25%
Gross Profit	$36.39M	$150.4M
YoY Change		-4.32%
Gross Profit Margin	48.45%	50.69%
Selling, General & Admin	$893.0K	$6.116M
YoY Change		-7.33%
% of Gross Profit	2.45%	4.07%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$27.37M	$111.0M
YoY Change		0.16%
% of Gross Profit	75.2%	73.77%
Operating Expenses	$28.26M	$117.1M
YoY Change		-0.26%
Operating Profit	$8.133M	$33.34M
YoY Change		-16.28%
Interest Expense	$16.60M	$29.30M
YoY Change		-63.87%
% of Operating Profit	204.11%	87.89%
Other Income/Expense, Net		$139.6M
YoY Change		185.73%
Pretax Income	$118.4M	$143.7M
YoY Change		-1263.03%
Income Tax
% Of Pretax Income
Net Earnings	$118.4M	$143.7M	-$221.0K
YoY Change	-53666.06%	-1263.03%	-74.89%
Net Earnings / Revenue	157.61%	48.41%	-0.28%
Basic Earnings Per Share		$0.83
Diluted Earnings Per Share	$758.9K	$0.83
COMMON SHARES
Basic Shares Outstanding	156.0M shares	172.3M shares	184.1M shares
Diluted Shares Outstanding		172.3M shares

Balance Sheet

Concept	2021 Q4	2021	2020 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$44.40M	$44.40M
YoY Change		-38.77%
Cash & Equivalents	$44.40M	$44.40M	$72.52M
Short-Term Investments
Other Short-Term Assets	$70.01M	$70.01M
YoY Change		-4.43%
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets	$203.3M	$203.3M
YoY Change		-12.3%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.868B	$1.868B
YoY Change		-7.92%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$0.00	$180.2M	$233.6M
YoY Change	-100.0%	-22.84%	-7.81%
Other Assets	$2.032M	$2.032M
YoY Change		-78.67%
Total Long-Term Assets	$2.051B	$2.051B
YoY Change		-9.75%
TOTAL ASSETS
Total Short-Term Assets	$203.3M	$203.3M
Total Long-Term Assets	$2.051B	$2.051B
Total Assets	$2.254B	$2.254B	$2.504B
YoY Change	-9.99%	-9.99%	-5.1%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$58.32M	$58.32M
YoY Change		4.5%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$74.18M	$74.18M
YoY Change		0.76%
LONG-TERM LIABILITIES
Long-Term Debt	$1.465B	$1.465B
YoY Change		5.55%
Other Long-Term Liabilities	$52.06M	$52.06M
YoY Change		-46.65%
Total Long-Term Liabilities	$1.517B	$1.517B
YoY Change		2.12%
TOTAL LIABILITIES
Total Short-Term Liabilities	$74.18M	$74.18M
Total Long-Term Liabilities	$1.517B	$1.517B
Total Liabilities	$1.592B	$1.592B	$1.560B
YoY Change	2.06%	2.06%	-2.64%
SHAREHOLDERS EQUITY
Retained Earnings
YoY Change
Common Stock	$1.532M		$1.842M
YoY Change	-16.83%		1.77%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$620.2M	$662.6M	$898.0M
YoY Change
Total Liabilities & Shareholders Equity	$2.254B	$2.254B	$2.504B
YoY Change	-9.99%	-9.99%	-5.1%

Cashflow Statement

Concept	2021 Q4	2021	2020 Q4
OPERATING ACTIVITIES
Net Income	$118.4M	$143.7M	-$221.0K
YoY Change	-53666.06%	-1263.03%	-74.89%
Depreciation, Depletion And Amortization	$27.37M	$111.0M
YoY Change		0.16%
Cash From Operating Activities	$24.56M	$100.8M
YoY Change		-0.92%
INVESTING ACTIVITIES
Capital Expenditures	$0.00	$0.00
YoY Change		-100.0%
Acquisitions
YoY Change
Other Investing Activities	$179.4M	$226.5M
YoY Change		158.68%
Cash From Investing Activities	$179.4M	$226.5M
YoY Change		168.74%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$365.6M
YoY Change		3261.1%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-196.5M	-$358.7M
YoY Change		127.77%
NET CHANGE
Cash From Operating Activities	24.56M	$100.8M
Cash From Investing Activities	179.4M	$226.5M
Cash From Financing Activities	-196.5M	-$358.7M
Net Change In Cash	7.460M	-$31.38M
YoY Change		-209.94%
FREE CASH FLOW
Cash From Operating Activities	$24.56M	$100.8M
Capital Expenditures	$0.00	$0.00
Free Cash Flow	$24.56M	$100.8M
YoY Change		-4.01%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021	dei	Amendment Flag AmendmentFlag	false
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0001482430
CY2021Q2	dei	Entity Public Float EntityPublicFloat	0	USD
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	kbsriii	Periodof Increaseor Decreaseof Funding Availablefor Redemption PeriodofIncreaseorDecreaseofFundingAvailableforRedemption	P10D
CY2021	kbsriii	Shareredemptionprogramterminationperiod Shareredemptionprogramterminationperiod	P10D
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-12-31
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	000-54687
CY2021	dei	Entity Registrant Name EntityRegistrantName	KBS REAL ESTATE INVESTMENT TRUST III, INC.
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MD
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	27-1627696
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	800 Newport Center Drive
CY2021	dei	Entity Address Address Line2 EntityAddressAddressLine2	Suite 700
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	Newport Beach
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	CA
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	92660
CY2021	dei	City Area Code CityAreaCode	949
CY2021	dei	Local Phone Number LocalPhoneNumber	417-6500
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2021	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
CY2021	dei	Entity Small Business EntitySmallBusiness	false
CY2021	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2021	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	false
CY2021	dei	Entity Shell Company EntityShellCompany	false
CY2022Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	151359227	shares
CY2021	dei	Auditor Firm AuditorFirmId	42
CY2021	dei	Auditor Name AuditorName	Ernst & Young LLP
CY2021	dei	Auditor Location AuditorLocation	Irvine, California
CY2021Q4	us-gaap	Land Land	290121000	USD
CY2020Q4	us-gaap	Land Land	290121000	USD
CY2021Q4	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	2090983000	USD
CY2020Q4	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	2021380000	USD
CY2021Q4	kbsriii	Tenant Origination And Absorption Costs Gross TenantOriginationAndAbsorptionCostsGross	60162000	USD
CY2020Q4	kbsriii	Tenant Origination And Absorption Costs Gross TenantOriginationAndAbsorptionCostsGross	75664000	USD
CY2021Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	2441266000	USD
CY2020Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	2387165000	USD
CY2021Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	572968000	USD
CY2020Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	490365000	USD
CY2021Q4	kbsriii	Real Estate Investment Property Excluding Held For Sale RealEstateInvestmentPropertyExcludingHeldForSale	1868298000	USD
CY2020Q4	kbsriii	Real Estate Investment Property Excluding Held For Sale RealEstateInvestmentPropertyExcludingHeldForSale	1896800000	USD
CY2021Q4	us-gaap	Real Estate Heldforsale RealEstateHeldforsale	0	USD
CY2020Q4	us-gaap	Real Estate Heldforsale RealEstateHeldforsale	132143000	USD
CY2021Q4	kbsriii	Real Estate And Real Estate Related Investments Net RealEstateAndRealEstateRelatedInvestmentsNet	2048526000	USD
CY2021Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	1868298000	USD
CY2020Q4	kbsriii	Real Estate Investment Property Net1 RealEstateInvestmentPropertyNet1	2028943000	USD
CY2021Q4	us-gaap	Equity Securities Fv Ni Current And Noncurrent EquitySecuritiesFvNiCurrentAndNoncurrent	180228000	USD
CY2020Q4	us-gaap	Equity Securities Fv Ni Current And Noncurrent EquitySecuritiesFvNiCurrentAndNoncurrent	0	USD
CY2020Q4	kbsriii	Real Estate And Real Estate Related Investments Net RealEstateAndRealEstateRelatedInvestmentsNet	2028943000	USD
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	44404000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	72523000	USD
CY2021Q4	us-gaap	Restricted Cash RestrictedCash	2032000	USD
CY2020Q4	us-gaap	Restricted Cash RestrictedCash	5288000	USD
CY2021Q4	us-gaap	Equity Method Investments EquityMethodInvestments	0	USD
CY2020Q4	us-gaap	Equity Method Investments EquityMethodInvestments	233592000	USD
CY2021Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	88534000	USD
CY2020Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	85539000	USD
CY2021Q4	kbsriii	Above Market Leases Net AboveMarketLeasesNet	348000	USD
CY2020Q4	kbsriii	Above Market Leases Net AboveMarketLeasesNet	449000	USD
CY2021Q4	us-gaap	Due From Related Parties DueFromRelatedParties	343000	USD
CY2020Q4	us-gaap	Due From Related Parties DueFromRelatedParties	0	USD
CY2021Q4	us-gaap	Assets Held For Sale Not Part Of Disposal Group AssetsHeldForSaleNotPartOfDisposalGroup	0	USD
CY2020Q4	us-gaap	Assets Held For Sale Not Part Of Disposal Group AssetsHeldForSaleNotPartOfDisposalGroup	13091000	USD
CY2021Q4	us-gaap	Prepaid Expense And Other Assets PrepaidExpenseAndOtherAssets	70014000	USD
CY2020Q4	us-gaap	Prepaid Expense And Other Assets PrepaidExpenseAndOtherAssets	64900000	USD
CY2021Q4	us-gaap	Assets Assets	2254201000	USD
CY2020Q4	us-gaap	Assets Assets	2504325000	USD
CY2021Q4	kbsriii	Notes Payable Excluding Notes Payable For Real Estate Held For Sale NotesPayableExcludingNotesPayableForRealEstateHeldForSale	1465398000	USD
CY2020Q4	kbsriii	Notes Payable Excluding Notes Payable For Real Estate Held For Sale NotesPayableExcludingNotesPayableForRealEstateHeldForSale	1358468000	USD
CY2021Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation	0	USD
CY2020Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation	29897000	USD
CY2021Q4	us-gaap	Notes Payable NotesPayable	1465398000	USD
CY2020Q4	us-gaap	Notes Payable NotesPayable	1388365000	USD
CY2021Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	58323000	USD
CY2020Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	55814000	USD
CY2021Q4	us-gaap	Due To Related Parties Current And Noncurrent DueToRelatedPartiesCurrentAndNoncurrent	8126000	USD
CY2020Q4	us-gaap	Due To Related Parties Current And Noncurrent DueToRelatedPartiesCurrentAndNoncurrent	8626000	USD
CY2021Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	7735000	USD
CY2020Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	9187000	USD
CY2021Q4	us-gaap	Below Market Lease Net BelowMarketLeaseNet	3277000	USD
CY2020Q4	us-gaap	Below Market Lease Net BelowMarketLeaseNet	6116000	USD
CY2021Q4	us-gaap	Disposal Group Including Discontinued Operation Other Liabilities DisposalGroupIncludingDiscontinuedOperationOtherLiabilities	0	USD
CY2020Q4	us-gaap	Disposal Group Including Discontinued Operation Other Liabilities DisposalGroupIncludingDiscontinuedOperationOtherLiabilities	21001000	USD
CY2021Q4	us-gaap	Other Liabilities OtherLiabilities	48780000	USD
CY2020Q4	us-gaap	Other Liabilities OtherLiabilities	70457000	USD
CY2021Q4	us-gaap	Liabilities Liabilities	1591639000	USD
CY2020Q4	us-gaap	Liabilities Liabilities	1559566000	USD
CY2021Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2021Q4	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	42369000	USD
CY2020Q4	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	46723000	USD
CY2021Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2020Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2021Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2020Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2021Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2020Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2021Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2021Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2020Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2021Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1000000000	shares
CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1000000000	shares
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	153150766	shares
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	153150766	shares
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	184249076	shares
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	184249076	shares
CY2021Q4	us-gaap	Common Stock Value CommonStockValue	1532000	USD
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	1842000	USD
CY2021Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1322613000	USD
CY2020Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1641184000	USD
CY2021Q4	us-gaap	Accumulated Distributions In Excess Of Net Income AccumulatedDistributionsInExcessOfNetIncome	703952000	USD
CY2020Q4	us-gaap	Accumulated Distributions In Excess Of Net Income AccumulatedDistributionsInExcessOfNetIncome	744990000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	620193000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	898036000	USD
CY2021Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2254201000	USD
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2504325000	USD
CY2021	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	280144000	USD
CY2020	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	282527000	USD
CY2019	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	355438000	USD
CY2021	us-gaap	Interest And Fee Income Loans Commercial And Residential Real Estate InterestAndFeeIncomeLoansCommercialAndResidentialRealEstate	0	USD
CY2020	us-gaap	Interest And Fee Income Loans Commercial And Residential Real Estate InterestAndFeeIncomeLoansCommercialAndResidentialRealEstate	5666000	USD
CY2019	us-gaap	Interest And Fee Income Loans Commercial And Residential Real Estate InterestAndFeeIncomeLoansCommercialAndResidentialRealEstate	0	USD
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	16617000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	18725000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	29834000	USD
CY2021	us-gaap	Revenues Revenues	296761000	USD
CY2020	us-gaap	Revenues Revenues	306918000	USD
CY2019	us-gaap	Revenues Revenues	385272000	USD
CY2021	us-gaap	Cost Of Other Property Operating Expense CostOfOtherPropertyOperatingExpense	68806000	USD
CY2020	us-gaap	Cost Of Other Property Operating Expense CostOfOtherPropertyOperatingExpense	71470000	USD
CY2019	us-gaap	Cost Of Other Property Operating Expense CostOfOtherPropertyOperatingExpense	92271000	USD
CY2021	us-gaap	Real Estate Taxes And Insurance RealEstateTaxesAndInsurance	57687000	USD
CY2020	us-gaap	Real Estate Taxes And Insurance RealEstateTaxesAndInsurance	57234000	USD
CY2019	us-gaap	Real Estate Taxes And Insurance RealEstateTaxesAndInsurance	62989000	USD
CY2021	us-gaap	Affiliate Costs AffiliateCosts	19832000	USD
CY2020	us-gaap	Affiliate Costs AffiliateCosts	20990000	USD
CY2019	us-gaap	Affiliate Costs AffiliateCosts	24614000	USD
CY2021	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	6116000	USD
CY2020	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	6600000	USD
CY2019	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	8418000	USD
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	110984000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	110806000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	141102000	USD
CY2021	us-gaap	Interest Expense InterestExpense	29301000	USD
CY2020	us-gaap	Interest Expense InterestExpense	81139000	USD
CY2019	us-gaap	Interest Expense InterestExpense	114272000	USD
CY2021	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	0	USD
CY2020	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	19896000	USD
CY2019	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	8706000	USD
CY2021	us-gaap	Costs And Expenses CostsAndExpenses	292726000	USD
CY2020	us-gaap	Costs And Expenses CostsAndExpenses	368135000	USD
CY2019	us-gaap	Costs And Expenses CostsAndExpenses	452372000	USD
CY2021	kbsriii	Otherincome Other OtherincomeOther	0	USD
CY2020	kbsriii	Otherincome Other OtherincomeOther	0	USD
CY2019	kbsriii	Otherincome Other OtherincomeOther	4089000	USD
CY2021	us-gaap	Investment Income Interest InvestmentIncomeInterest	52000	USD
CY2020	us-gaap	Investment Income Interest InvestmentIncomeInterest	72000	USD
CY2019	us-gaap	Investment Income Interest InvestmentIncomeInterest	655000	USD
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	8698000	USD
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-465000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-1443000	USD
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-214000	USD
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-199000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-2229000	USD
CY2021	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	16765000	USD
CY2020	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	0	USD
CY2019	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	0	USD
CY2021	kbsriii	Gain Loss On Sale Of Real Estate GainLossOnSaleOfRealEstate	114321000	USD
CY2020	kbsriii	Gain Loss On Sale Of Real Estate GainLossOnSaleOfRealEstate	49457000	USD
CY2019	kbsriii	Gain Loss On Sale Of Real Estate GainLossOnSaleOfRealEstate	327211000	USD
CY2021	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	139622000	USD
CY2020	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	48865000	USD
CY2019	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	328283000	USD
CY2021	us-gaap	Profit Loss ProfitLoss	143657000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	-12352000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	261183000	USD
CY2021	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	6145000	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-28000	USD
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	143657000	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-18497000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	261211000	USD
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.83
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.83
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.10
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.10
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.49
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.49
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	172330821	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	172330821	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	182806753	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	182806753	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	174874422	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	174874422	shares
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	Dividends Common Stock DividendsCommonStock	161887000	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
CY2020	us-gaap	Profit Loss ProfitLoss	-12352000	USD
CY2020	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	46722000	USD
CY2020	kbsriii	Adjustments To Additional Paid In Capital Transfers From Redeemable Common Stock AdjustmentsToAdditionalPaidInCapitalTransfersFromRedeemableCommonStock	4981000	USD
CY2020	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	10877000	USD
CY2020	us-gaap	Dividends Common Stock DividendsCommonStock	109322000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Stock Issued Issuance Costs AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts	26000	USD
CY2020	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	6400000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	898036000	USD
CY2021	us-gaap	Profit Loss ProfitLoss	143657000	USD
CY2021	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	42369000	USD
CY2021	kbsriii	Adjustments To Additional Paid In Capital Transfers From Redeemable Common Stock AdjustmentsToAdditionalPaidInCapitalTransfersFromRedeemableCommonStock	4354000	USD
CY2021	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	365587000	USD
CY2021	us-gaap	Dividends Common Stock DividendsCommonStock	102619000	USD
CY2021	us-gaap	Adjustments To Additional Paid In Capital Stock Issued Issuance Costs AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts	17000	USD
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	620193000	USD
CY2021	us-gaap	Profit Loss ProfitLoss	143657000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	-12352000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	261183000	USD
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	110984000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	110806000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	141102000	USD
CY2021	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	0	USD
CY2020	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	19896000	USD
CY2019	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	8706000	USD
CY2021	kbsriii	Noncash Interest Income On Real Estate Related Investment NoncashInterestIncomeOnRealEstateRelatedInvestment	0	USD
CY2020	kbsriii	Noncash Interest Income On Real Estate Related Investment NoncashInterestIncomeOnRealEstateRelatedInvestment	2415000	USD
CY2019	kbsriii	Noncash Interest Income On Real Estate Related Investment NoncashInterestIncomeOnRealEstateRelatedInvestment	0	USD
CY2021	us-gaap	Equity Securities Fv Ni Unrealized Gain EquitySecuritiesFvNiUnrealizedGain	16765000	USD
CY2020	us-gaap	Equity Securities Fv Ni Unrealized Gain EquitySecuritiesFvNiUnrealizedGain	0	USD
CY2019	us-gaap	Equity Securities Fv Ni Unrealized Gain EquitySecuritiesFvNiUnrealizedGain	0	USD
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	8698000	USD
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-465000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-1443000	USD
CY2021	kbsriii	Distribution Of Operating Cash Flow From An Unconsolidated Entity DistributionOfOperatingCashFlowFromAnUnconsolidatedEntity	19861000	USD
CY2020	kbsriii	Distribution Of Operating Cash Flow From An Unconsolidated Entity DistributionOfOperatingCashFlowFromAnUnconsolidatedEntity	19314000	USD
CY2019	kbsriii	Distribution Of Operating Cash Flow From An Unconsolidated Entity DistributionOfOperatingCashFlowFromAnUnconsolidatedEntity	0	USD
CY2021	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	2550000	USD
CY2020	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	4564000	USD
CY2019	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	6224000	USD
CY2021	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-2754000	USD
CY2020	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-2807000	USD
CY2019	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-3515000	USD
CY2021	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	3978000	USD
CY2020	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	4293000	USD
CY2019	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	5385000	USD
CY2021	us-gaap	Unrealized Gain Loss On Derivatives And Commodity Contracts UnrealizedGainLossOnDerivativesAndCommodityContracts	23283000	USD
CY2020	us-gaap	Unrealized Gain Loss On Derivatives And Commodity Contracts UnrealizedGainLossOnDerivativesAndCommodityContracts	-25165000	USD
CY2019	us-gaap	Unrealized Gain Loss On Derivatives And Commodity Contracts UnrealizedGainLossOnDerivativesAndCommodityContracts	-35664000	USD
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-214000	USD
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-199000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-2229000	USD
CY2021	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	114321000	USD
CY2020	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	49457000	USD
CY2019	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	327211000	USD
CY2021	kbsriii	Interest Rate Swap Settlements For Off Market Swap Instruments InterestRateSwapSettlementsForOffMarketSwapInstruments	3031000	USD
CY2020	kbsriii	Interest Rate Swap Settlements For Off Market Swap Instruments InterestRateSwapSettlementsForOffMarketSwapInstruments	476000	USD
CY2019	kbsriii	Interest Rate Swap Settlements For Off Market Swap Instruments InterestRateSwapSettlementsForOffMarketSwapInstruments	0	USD
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	5005000	USD
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	2698000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	10600000	USD
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	14361000	USD
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	9015000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	32947000	USD
CY2021	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	4141000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-6696000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-933000	USD
CY2021	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	3513000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	9247000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-7114000	USD
CY2021	us-gaap	Increase Decrease In Due From Related Parties IncreaseDecreaseInDueFromRelatedParties	343000	USD
CY2020	us-gaap	Increase Decrease In Due From Related Parties IncreaseDecreaseInDueFromRelatedParties	0	USD
CY2019	us-gaap	Increase Decrease In Due From Related Parties IncreaseDecreaseInDueFromRelatedParties	0	USD
CY2021	us-gaap	Increase Decrease In Due To Related Parties IncreaseDecreaseInDueToRelatedParties	-500000	USD
CY2020	us-gaap	Increase Decrease In Due To Related Parties IncreaseDecreaseInDueToRelatedParties	1873000	USD
CY2019	us-gaap	Increase Decrease In Due To Related Parties IncreaseDecreaseInDueToRelatedParties	3460000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	100799000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	101730000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	70628000	USD
CY2021	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	70131000	USD
CY2020	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	87630000	USD
CY2019	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	79931000	USD
CY2021	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	237683000	USD
CY2020	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	25091000	USD
CY2019	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	931489000	USD
CY2021	us-gaap	Payments For Proceeds From Loans Receivable PaymentsForProceedsFromLoansReceivable	0	USD
CY2020	us-gaap	Payments For Proceeds From Loans Receivable PaymentsForProceedsFromLoansReceivable	-150213000	USD
CY2019	us-gaap	Payments For Proceeds From Loans Receivable PaymentsForProceedsFromLoansReceivable	0	USD
CY2021	us-gaap	Proceeds From Sale Of Equity Securities Fv Ni ProceedsFromSaleOfEquitySecuritiesFvNi	58936000	USD
CY2020	us-gaap	Proceeds From Sale Of Equity Securities Fv Ni ProceedsFromSaleOfEquitySecuritiesFvNi	0	USD
CY2019	us-gaap	Proceeds From Sale Of Equity Securities Fv Ni ProceedsFromSaleOfEquitySecuritiesFvNi	16186000	USD
CY2021	us-gaap	Payments For Construction In Process PaymentsForConstructionInProcess	0	USD
CY2020	us-gaap	Payments For Construction In Process PaymentsForConstructionInProcess	3277000	USD
CY2019	us-gaap	Payments For Construction In Process PaymentsForConstructionInProcess	21706000	USD
CY2021	kbsriii	Origination Costs On Real Estate Loan Receivable OriginationCostsOnRealEstateLoanReceivable	0	USD
CY2020	kbsriii	Origination Costs On Real Estate Loan Receivable OriginationCostsOnRealEstateLoanReceivable	120000	USD
CY2019	kbsriii	Origination Costs On Real Estate Loan Receivable OriginationCostsOnRealEstateLoanReceivable	0	USD
CY2021	kbsriii	Payments Of Post Closing Acquisition Costs PaymentsOfPostClosingAcquisitionCosts	0	USD
CY2020	kbsriii	Payments Of Post Closing Acquisition Costs PaymentsOfPostClosingAcquisitionCosts	0	USD
CY2019	kbsriii	Payments Of Post Closing Acquisition Costs PaymentsOfPostClosingAcquisitionCosts	1014000	USD
CY2021	kbsriii	Escrow Deposits Relatedto Tenant Improvements EscrowDepositsRelatedtoTenantImprovements	0	USD
CY2020	kbsriii	Escrow Deposits Relatedto Tenant Improvements EscrowDepositsRelatedtoTenantImprovements	0	USD
CY2019	kbsriii	Escrow Deposits Relatedto Tenant Improvements EscrowDepositsRelatedtoTenantImprovements	972000	USD
CY2021	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	0	USD
CY2020	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	0	USD
CY2019	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	867000	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	226488000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	84277000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	846863000	USD
CY2021	us-gaap	Proceeds From Notes Payable ProceedsFromNotesPayable	806090000	USD
CY2020	us-gaap	Proceeds From Notes Payable ProceedsFromNotesPayable	421760000	USD
CY2019	us-gaap	Proceeds From Notes Payable ProceedsFromNotesPayable	377589000	USD
CY2021	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	730545000	USD
CY2020	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	491391000	USD
CY2019	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	1107369000	USD
CY2021	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	2704000	USD
CY2020	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	6339000	USD
CY2019	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	2609000	USD
CY2021	kbsriii	Interest Rate Swap Settlements For Off Market Swap Instruments Financing Activities InterestRateSwapSettlementsForOffMarketSwapInstrumentsFinancingActivities	3017000	USD
CY2020	kbsriii	Interest Rate Swap Settlements For Off Market Swap Instruments Financing Activities InterestRateSwapSettlementsForOffMarketSwapInstrumentsFinancingActivities	231000	USD
CY2019	kbsriii	Interest Rate Swap Settlements For Off Market Swap Instruments Financing Activities InterestRateSwapSettlementsForOffMarketSwapInstrumentsFinancingActivities	0	USD
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	365587000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	10877000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	100996000	USD
CY2021	kbsriii	Payments Of Prepaid Other Offering Costs PaymentsOfPrepaidOtherOfferingCosts	1180000	USD
CY2020	kbsriii	Payments Of Prepaid Other Offering Costs PaymentsOfPrepaidOtherOfferingCosts	1159000	USD
CY2019	kbsriii	Payments Of Prepaid Other Offering Costs PaymentsOfPrepaidOtherOfferingCosts	264000	USD
CY2021	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	17000	USD
CY2020	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	26000	USD
CY2019	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	16000	USD
CY2021	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	0	USD
CY2020	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	6400000	USD
CY2019	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	0	USD
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	61702000	USD
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	62805000	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	110592000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-358662000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-157468000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-944257000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-31375000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	28539000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-26766000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	77811000	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
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	46436000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	77811000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	49272000	USD
CY2021	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	0	USD
CY2020	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	0	USD
CY2019	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	1711000	USD
CY2021	us-gaap	Interest Paid Net InterestPaidNet	45586000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	51576000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	75471000	USD
CY2021	kbsriii	Non Cash Shares Received In Connection With Transaction NonCashSharesReceivedInConnectionWithTransaction	0	USD
CY2020	kbsriii	Non Cash Shares Received In Connection With Transaction NonCashSharesReceivedInConnectionWithTransaction	0	USD
CY2019	kbsriii	Non Cash Shares Received In Connection With Transaction NonCashSharesReceivedInConnectionWithTransaction	271000000	USD
CY2021	kbsriii	Non Cash Increase Decrease In Distributions Payable NonCashIncreaseDecreaseInDistributionsPayable	7735000	USD
CY2020	kbsriii	Non Cash Increase Decrease In Distributions Payable NonCashIncreaseDecreaseInDistributionsPayable	9187000	USD
CY2019	kbsriii	Non Cash Increase Decrease In Distributions Payable NonCashIncreaseDecreaseInDistributionsPayable	9392000	USD
CY2021	kbsriii	Distributions Paid To Common Stockholders Through Common Stock Issuances Pursuant To Dividend Reinvestment Plan DistributionsPaidToCommonStockholdersThroughCommonStockIssuancesPursuantToDividendReinvestmentPlan	42369000	USD
CY2020	kbsriii	Distributions Paid To Common Stockholders Through Common Stock Issuances Pursuant To Dividend Reinvestment Plan DistributionsPaidToCommonStockholdersThroughCommonStockIssuancesPursuantToDividendReinvestmentPlan	46722000	USD
CY2019	kbsriii	Distributions Paid To Common Stockholders Through Common Stock Issuances Pursuant To Dividend Reinvestment Plan DistributionsPaidToCommonStockholdersThroughCommonStockIssuancesPursuantToDividendReinvestmentPlan	51704000	USD
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	17985000	USD
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	18589000	USD
CY2019	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	26310000	USD
CY2021	kbsriii	Payments For Capital Improvements By Tenants PaymentsForCapitalImprovementsByTenants	0	USD
CY2020	kbsriii	Payments For Capital Improvements By Tenants PaymentsForCapitalImprovementsByTenants	16283000	USD
CY2019	kbsriii	Payments For Capital Improvements By Tenants PaymentsForCapitalImprovementsByTenants	0	USD
CY2021	kbsriii	Increasein Construction In Progress Payable IncreaseinConstructionInProgressPayable	0	USD
CY2020	kbsriii	Increasein Construction In Progress Payable IncreaseinConstructionInProgressPayable	0	USD
CY2019	kbsriii	Increasein Construction In Progress Payable IncreaseinConstructionInProgressPayable	2144000	USD
CY2021	kbsriii	Increaseinconstructioninprogressduetoaffiliate Increaseinconstructioninprogressduetoaffiliate	0	USD
CY2020	kbsriii	Increaseinconstructioninprogressduetoaffiliate Increaseinconstructioninprogressduetoaffiliate	0	USD
CY2019	kbsriii	Increaseinconstructioninprogressduetoaffiliate Increaseinconstructioninprogressduetoaffiliate	1133000	USD
CY2021	kbsriii	Accrued Prepaid Other Offering Costs AccruedPrepaidOtherOfferingCosts	19000	USD
CY2020	kbsriii	Accrued Prepaid Other Offering Costs AccruedPrepaidOtherOfferingCosts	782000	USD
CY2019	kbsriii	Accrued Prepaid Other Offering Costs AccruedPrepaidOtherOfferingCosts	33000	USD
CY2021	kbsriii	Financing Of Interest Rate Swap Liability Through Off Market Swap Instruments FinancingOfInterestRateSwapLiabilityThroughOffMarketSwapInstruments	0	USD
CY2020	kbsriii	Financing Of Interest Rate Swap Liability Through Off Market Swap Instruments FinancingOfInterestRateSwapLiabilityThroughOffMarketSwapInstruments	8156000	USD
CY2019	kbsriii	Financing Of Interest Rate Swap Liability Through Off Market Swap Instruments FinancingOfInterestRateSwapLiabilityThroughOffMarketSwapInstruments	0	USD
CY2021	kbsriii	Accrued Interest Rate Swap Settlements Related To Off Market Swap Instruments AccruedInterestRateSwapSettlementsRelatedToOffMarketSwapInstruments	259000	USD
CY2020	kbsriii	Accrued Interest Rate Swap Settlements Related To Off Market Swap Instruments AccruedInterestRateSwapSettlementsRelatedToOffMarketSwapInstruments	245000	USD
CY2019	kbsriii	Accrued Interest Rate Swap Settlements Related To Off Market Swap Instruments AccruedInterestRateSwapSettlementsRelatedToOffMarketSwapInstruments	0	USD
CY2021	kbsriii	Real Estate Equity Securities Due To Conversion From Equity Method RealEstateEquitySecuritiesDueToConversionFromEquityMethod	163463000	USD
CY2020	kbsriii	Real Estate Equity Securities Due To Conversion From Equity Method RealEstateEquitySecuritiesDueToConversionFromEquityMethod	0	USD
CY2019	kbsriii	Real Estate Equity Securities Due To Conversion From Equity Method RealEstateEquitySecuritiesDueToConversionFromEquityMethod	0	USD
CY2014Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	258462	shares
CY2014Q4	us-gaap	Common Stock Value CommonStockValue	2400000	USD
CY2021	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.
CY2021	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	Certain amounts in the Company’s prior period consolidated financial statements have been reclassified to conform to the current period presentation. These reclassifications have not changed the results of operations of prior periods. During the year ended December 31, 2020, the Company sold a multifamily apartment complex held through a consolidated joint venture. During the year ended December 31, 2021, the Company sold two office properties. 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.
CY2021	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	0	USD
CY2020	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	19900000	USD
CY2019	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	8700000	USD
CY2021Q4	kbsriii	Dividend Reinvestment Plan Purchase Price For Share As Percent Of Estimated Value DividendReinvestmentPlanPurchasePriceForShareAsPercentOfEstimatedValue	0.95
CY2019Q1	kbsriii	Dividend Reinvestment Plan Purchase Price Per Share DividendReinvestmentPlanPurchasePricePerShare	11.42
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
CY2019Q4	kbsriii	Common Stock Special Dividends Per Share Declared CommonStockSpecialDividendsPerShareDeclared	0.80
CY2020Q1	kbsriii	Dividend Reinvestment Plan Purchase Price Per Share DividendReinvestmentPlanPurchasePricePerShare	11.07
CY2020Q4	kbsriii	Estimated Value Per Share Of Companys Common Stock EstimatedValuePerShareOfCompanysCommonStock	10.74
CY2021Q1	kbsriii	Dividend Reinvestment Plan Purchase Price Per Share DividendReinvestmentPlanPurchasePricePerShare	10.21
CY2021Q2	kbsriii	Estimated Value Per Share Of Companys Common Stock EstimatedValuePerShareOfCompanysCommonStock	10.77
CY2021Q2	kbsriii	Dividend Reinvestment Plan Purchase Price Per Share DividendReinvestmentPlanPurchasePricePerShare	10.23
CY2021Q4	kbsriii	Estimated Value Per Share Of Companys Common Stock EstimatedValuePerShareOfCompanysCommonStock	10.78
CY2021Q4	kbsriii	Dividend Reinvestment Plan Purchase Price Per Share DividendReinvestmentPlanPurchasePricePerShare	10.24
CY2021	kbsriii	Periodof Termination Notice PeriodofTerminationNotice	P10D
CY2021Q2	kbsriii	Stock Repurchased During Period Price Per Share StockRepurchasedDuringPeriodPricePerShare	10.34
CY2021Q3	us-gaap	Stock Redeemed Or Called During Period Shares StockRedeemedOrCalledDuringPeriodShares	26375383	shares
CY2021Q3	kbsriii	Stock Repurchased During Period Price Per Share StockRepurchasedDuringPeriodPricePerShare	10.34
CY2021Q3	us-gaap	Stock Redeemed Or Called During Period Value StockRedeemedOrCalledDuringPeriodValue	272700000	USD
CY2021	kbsriii	Maximum Percentage Of Weighted Average Shares Outstanding Available For Redemption During Current Calendar Year MaximumPercentageOfWeightedAverageSharesOutstandingAvailableForRedemptionDuringCurrentCalendarYear	0.05
CY2021Q4	kbsriii	Maximum Number Of Weighted Average Shares Outstanding Available For Redemption During Current Calendar Year MaximumNumberOfWeightedAverageSharesOutstandingAvailableForRedemptionDuringCurrentCalendarYear	500000	shares
CY2021Q4	kbsriii	Share Redemption Program Share Limitation For Special Redemptions ShareRedemptionProgramShareLimitationForSpecialRedemptions	500000	shares
CY2021	kbsriii	Maximum Percentage Of Weighted Average Shares Outstanding Available For Redemption During Any Calendar Year MaximumPercentageOfWeightedAverageSharesOutstandingAvailableForRedemptionDuringAnyCalendarYear	0.05
	kbsriii	Redemption Price Percentage Of Most Recent Estimated Value For Share RedemptionPricePercentageOfMostRecentEstimatedValueForShare	0.95
	kbsriii	Redemption Price Percentage Of Most Recent Estimated Value For Share RedemptionPricePercentageOfMostRecentEstimatedValueForShare	0.96
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
CY2020Q4	kbsriii	Estimated Value Per Share Of Companys Common Stock EstimatedValuePerShareOfCompanysCommonStock	10.74
CY2021Q2	kbsriii	Estimated Value Per Share Of Companys Common Stock EstimatedValuePerShareOfCompanysCommonStock	10.77
CY2021Q4	kbsriii	Estimated Value Per Share Of Companys Common Stock EstimatedValuePerShareOfCompanysCommonStock	10.78
CY2021Q4	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	42400000	USD
CY2021Q4	kbsriii	Origination Fee Percent OriginationFeePercent	0.010
CY2021Q4	kbsriii	Non Compounded Returnon Net Invested Capital NonCompoundedReturnonNetInvestedCapital	0.080
CY2021Q4	kbsriii	Non Compounded Returnon Net Invested Capital NonCompoundedReturnonNetInvestedCapital	0.08
CY2021Q4	kbsriii	Non Compounded Returnon Net Invested Capital NonCompoundedReturnonNetInvestedCapital	0.08
CY2021	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
CY2020	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	shares
CY2019Q4	kbsriii	Stock Issued During Period Shares Special Dividends Percent StockIssuedDuringPeriodSharesSpecialDividendsPercent	0.65
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.598
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.598
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.450
CY2019	kbsriii	Common Share Distribution Rate For Share Per Month Declared CommonShareDistributionRateForSharePerMonthDeclared	0.05416667
CY2021	kbsriii	Common Share Distribution Rate For Share Per Month Declared CommonShareDistributionRateForSharePerMonthDeclared	0.04983333
CY2020	kbsriii	Common Share Distribution Rate For Share Per Month Declared CommonShareDistributionRateForSharePerMonthDeclared	0.04983333
CY2021	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	numberOfSegments
	kbsriii	Grants Of Rent Deferrals Covid19 GrantsOfRentDeferralsCOVID19	4200000	USD
CY2021Q4	kbsriii	Grants Of Rental Abatements Covid19 GrantsOfRentalAbatementsCOVID19	2900000	USD
CY2021Q4	kbsriii	Deferred Lease Concessions Covid19 DeferredLeaseConcessionsCOVID19	1400000	USD
CY2021Q4	kbsriii	Reserve For Payments Not Probable To Collect Covid19 ReserveForPaymentsNotProbableToCollectCOVID19	1100000	USD
CY2021	kbsriii	Reversal Of Rental Income For Abatements Granted To Tenants Covid19 ReversalOfRentalIncomeForAbatementsGrantedToTenantsCOVID19	1200000	USD
CY2020	kbsriii	Reversal Of Rental Income For Abatements Granted To Tenants Covid19 ReversalOfRentalIncomeForAbatementsGrantedToTenantsCOVID19	1500000	USD
CY2021Q4	us-gaap	Area Of Real Estate Property AreaOfRealEstateProperty	7300000	sqft
CY2021Q4	kbsriii	Percentage Of Real Estate Portfolio Occupied PercentageOfRealEstatePortfolioOccupied	0.85
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Five Years LessorOperatingLeasePaymentsToBeReceivedFiveYears	131097000	USD
CY2021Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	2441266000	USD
CY2021Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	572968000	USD
CY2021Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	1868298000	USD
CY2021	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	2600000	USD
CY2020	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	4600000	USD
CY2019	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	6200000	USD
CY2021Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	85200000	USD
CY2020Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	80700000	USD
CY2021Q4	us-gaap	Incentive To Lessee IncentiveToLessee	22800000	USD
CY2020Q4	us-gaap	Incentive To Lessee IncentiveToLessee	19100000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Next Twelve Months LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths	199591000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Two Years LessorOperatingLeasePaymentsToBeReceivedTwoYears	177283000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Three Years LessorOperatingLeasePaymentsToBeReceivedThreeYears	166774000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Four Years LessorOperatingLeasePaymentsToBeReceivedFourYears	149594000	USD
CY2021Q4	kbsriii	Annualized Base Rent AnnualizedBaseRent	69104000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Thereafter LessorOperatingLeasePaymentsToBeReceivedThereafter	493972000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received LessorOperatingLeasePaymentsToBeReceived	1318311000	USD
CY2021	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	0	USD
CY2020	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	19900000	USD
CY2019	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	8700000	USD
CY2020	kbsriii	Off Market Lease Unfavorable Amortization Expense OffMarketLeaseUnfavorableAmortizationExpense	2924000	USD
CY2021Q4	us-gaap	Below Market Lease Gross BelowMarketLeaseGross	15395000	USD
CY2020Q4	us-gaap	Below Market Lease Gross BelowMarketLeaseGross	20239000	USD
CY2021Q4	us-gaap	Below Market Lease Accumulated Amortization BelowMarketLeaseAccumulatedAmortization	12118000	USD
CY2020Q4	us-gaap	Below Market Lease Accumulated Amortization BelowMarketLeaseAccumulatedAmortization	14123000	USD
CY2021Q4	us-gaap	Below Market Lease Net BelowMarketLeaseNet	3277000	USD
CY2020Q4	us-gaap	Below Market Lease Net BelowMarketLeaseNet	6116000	USD
CY2021	kbsriii	Tenant Origination And Absorption Costs Amortization Expense TenantOriginationAndAbsorptionCostsAmortizationExpense	8175000	USD
CY2020	kbsriii	Tenant Origination And Absorption Costs Amortization Expense TenantOriginationAndAbsorptionCostsAmortizationExpense	9971000	USD
CY2019	kbsriii	Tenant Origination And Absorption Costs Amortization Expense TenantOriginationAndAbsorptionCostsAmortizationExpense	21072000	USD
CY2021	kbsriii	Above Market Leases Amortization Expense AboveMarketLeasesAmortizationExpense	101000	USD
CY2020	kbsriii	Above Market Leases Amortization Expense AboveMarketLeasesAmortizationExpense	117000	USD
CY2019	kbsriii	Above Market Leases Amortization Expense AboveMarketLeasesAmortizationExpense	955000	USD
CY2021	kbsriii	Off Market Lease Unfavorable Amortization Expense OffMarketLeaseUnfavorableAmortizationExpense	2855000	USD
CY2019	kbsriii	Off Market Lease Unfavorable Amortization Expense OffMarketLeaseUnfavorableAmortizationExpense	4470000	USD
CY2021Q4	us-gaap	Below Market Lease Amortization Income Next Twelve Months BelowMarketLeaseAmortizationIncomeNextTwelveMonths	1365000	USD
CY2021Q4	us-gaap	Below Market Lease Amortization Income Year Two BelowMarketLeaseAmortizationIncomeYearTwo	833000	USD
CY2021Q4	us-gaap	Below Market Lease Amortization Income Year Three BelowMarketLeaseAmortizationIncomeYearThree	534000	USD
CY2021Q4	us-gaap	Below Market Lease Amortization Income Year Four BelowMarketLeaseAmortizationIncomeYearFour	314000	USD
CY2021Q4	us-gaap	Below Market Lease Amortization Income Year Five BelowMarketLeaseAmortizationIncomeYearFive	198000	USD
CY2021Q4	us-gaap	Below Market Lease Amortization Income After Year Five BelowMarketLeaseAmortizationIncomeAfterYearFive	33000	USD
CY2021Q4	us-gaap	Below Market Lease Net BelowMarketLeaseNet	3277000	USD
CY2021	us-gaap	Equity Securities Fv Ni Unrealized Gain EquitySecuritiesFvNiUnrealizedGain	16800000	USD
CY2021Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	1472290000	USD
CY2020Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	1396745000	USD
CY2021Q4	us-gaap	Notes Payable NotesPayable	1465398000	USD
CY2021Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	6892000	USD
CY2020Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	8380000	USD
CY2020Q4	us-gaap	Notes Payable NotesPayable	1388365000	USD
CY2021	us-gaap	Interest Expense InterestExpense	29300000	USD
CY2020	us-gaap	Interest Expense InterestExpense	81100000	USD
CY2019	us-gaap	Interest Expense InterestExpense	114300000	USD
CY2021	kbsriii	Derivatives Increase Decrease Interest Expense DerivativesIncreaseDecreaseInterestExpense	-5300000	USD
CY2020	kbsriii	Derivatives Increase Decrease Interest Expense DerivativesIncreaseDecreaseInterestExpense	39100000	USD
CY2019	kbsriii	Derivatives Increase Decrease Interest Expense DerivativesIncreaseDecreaseInterestExpense	33100000	USD
CY2019	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	1700000	USD
CY2021Q4	us-gaap	Interest Payable Current InterestPayableCurrent	4000000	USD
CY2020Q4	us-gaap	Interest Payable Current InterestPayableCurrent	4000000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	1013000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	1100067000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	371210000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	0	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	0	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	0	USD
CY2021Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	1472290000	USD
CY2021Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	1472290000	USD
CY2020Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	1396745000	USD
CY2021	us-gaap	Payment For Administrative Fees PaymentForAdministrativeFees	428000	USD
CY2020	us-gaap	Payment For Administrative Fees PaymentForAdministrativeFees	338000	USD
CY2019	us-gaap	Payment For Administrative Fees PaymentForAdministrativeFees	357000	USD
CY2021Q4	kbsriii	Non Compounded Returnon Net Invested Capital NonCompoundedReturnonNetInvestedCapital	0.080
CY2021Q4	kbsriii	Non Compounded Returnon Net Invested Capital NonCompoundedReturnonNetInvestedCapital	0.08
CY2021Q4	kbsriii	Non Compounded Returnon Net Invested Capital NonCompoundedReturnonNetInvestedCapital	0.08
CY2021Q4	us-gaap	Nonfinancial Liabilities Fair Value Disclosure NonfinancialLiabilitiesFairValueDisclosure	0	USD
CY2021Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Land RealEstateAndAccumulatedDepreciationInitialCostOfLand	293029000	USD
CY2021Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements	1889862000	USD
CY2021Q4	kbsriii	Real Estate And Accumulated Depreciation Initial Cost Of Land And Buildings And Improvements RealEstateAndAccumulatedDepreciationInitialCostOfLandAndBuildingsAndImprovements	2182891000	USD
CY2021Q4	us-gaap	Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Carrying Costs RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts	258375000	USD
CY2021Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Land RealEstateAndAccumulatedDepreciationCarryingAmountOfLand	290121000	USD
CY2021Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements	2151145000	USD
CY2021Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	2441266000	USD
CY2021Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	572968000	USD
CY2021Q4	srt	Real Estate Federal Income Tax Basis RealEstateFederalIncomeTaxBasis	2700000000	USD
CY2020Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	2554572000	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
CY2021	us-gaap	Real Estate Improvements RealEstateImprovements	69527000	USD
CY2020	us-gaap	Real Estate Improvements RealEstateImprovements	96191000	USD
CY2019	us-gaap	Real Estate Improvements RealEstateImprovements	102921000	USD
CY2021	kbsriii	Sec Schedule Iii Real Estate Constructionin Progress SECScheduleIIIRealEstateConstructioninProgress	0	USD
CY2020	kbsriii	Sec Schedule Iii Real Estate Constructionin Progress SECScheduleIIIRealEstateConstructioninProgress	0	USD
CY2021	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	100036000	USD
CY2019	kbsriii	Sec Schedule Iii Real Estate Constructionin Progress SECScheduleIIIRealEstateConstructioninProgress	19035000	USD
CY2021	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	15502000	USD
CY2020	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	18832000	USD
CY2019	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	50590000	USD
CY2021	kbsriii	Sec Schedule Iii Real Estate Impairments SECScheduleIIIRealEstateImpairments	0	USD
CY2020	kbsriii	Sec Schedule Iii Real Estate Impairments SECScheduleIIIRealEstateImpairments	19395000	USD
CY2019	kbsriii	Sec Schedule Iii Real Estate Impairments SECScheduleIIIRealEstateImpairments	8490000	USD
CY2021	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	167331000	USD
CY2020	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	128394000	USD
CY2019	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	1011385000	USD
CY2021Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	2441266000	USD
CY2020Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	2554572000	USD
CY2019Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	2625002000	USD
CY2020Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	525629000	USD
CY2019Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	449381000	USD
CY2018Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	536990000	USD
CY2020	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	100162000	USD
CY2019	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	136040000	USD
CY2021	us-gaap	Real Estate Accumulated Depreciation Other Deductions RealEstateAccumulatedDepreciationOtherDeductions	15502000	USD
CY2020	us-gaap	Real Estate Accumulated Depreciation Other Deductions RealEstateAccumulatedDepreciationOtherDeductions	18832000	USD
CY2019	us-gaap	Real Estate Accumulated Depreciation Other Deductions RealEstateAccumulatedDepreciationOtherDeductions	50590000	USD
CY2021	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	37195000	USD
CY2020	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	5082000	USD
CY2019	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	173059000	USD
CY2021Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	572968000	USD
CY2020Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	525629000	USD
CY2019Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	449381000	USD

Files In Submission

Name	View Source	Status
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$KBSR
KBS Real Estate Investment Trust III, Inc. Stock $kbsr

2021 Q4 Form 10-K Financial Statement

#000148243022000016 Filed on March 31, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

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

2021 Q4 Form 10-K Financial Statement

#000148243022000016 Filed on March 31, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

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