$JBGS
JBG SMITH Properties Stock $jbgs

$jbgs Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-Q Financial Statement

#000155837021014112 Filed on November 02, 2021

Income Statement

Concept	2021 Q4	2021 Q3	2020 Q3
Revenue	$157.4M	$157.0M	$151.0M
YoY Change	5.91%	3.96%	-9.6%
Cost Of Revenue	$83.53M	$84.00M	$83.10M
YoY Change	-2.76%	1.08%	0.97%
Gross Profit	$73.88M	$73.02M	$67.90M
YoY Change	17.64%	7.54%	-19.83%
Gross Profit Margin	46.93%	46.5%	44.96%
Selling, General & Admin	$18.80M	$15.59M	$18.20M
YoY Change	22.1%	-14.37%	-11.65%
% of Gross Profit	25.45%	21.34%	26.8%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$59.24M	$57.77M	$57.50M
YoY Change	-9.15%	0.47%	20.29%
% of Gross Profit	80.18%	79.12%	84.68%
Operating Expenses	$76.98M	$72.31M	$74.70M
YoY Change	-3.17%	-3.2%	-50.8%
Operating Profit	-$3.098M	$712.0K	-$6.800M
YoY Change	-81.45%	-110.47%	-89.87%
Interest Expense	-$8.977M	$17.24M	$16.89M
YoY Change	-53.49%	2.12%	59.55%
% of Operating Profit		2421.77%
Other Income/Expense, Net		$3.452M	-$17.85M
YoY Change		-119.34%	317.15%
Pretax Income	-$64.32M	$1.213M	-$25.49M
YoY Change	26.86%	-104.76%	-332.52%
Income Tax	-$986.0K	$217.0K	-$488.0K
% Of Pretax Income		17.89%
Net Earnings	-$56.45M	$893.0K	-$22.79M
YoY Change	23.64%	-103.92%	-343.51%
Net Earnings / Revenue	-35.86%	0.57%	-15.09%
Basic Earnings Per Share		$0.00	-$0.18
Diluted Earnings Per Share	-$437.6K	$0.00	-$0.18
COMMON SHARES
Basic Shares Outstanding	129.7M	131.4M	133.6M
Diluted Shares Outstanding		131.4M	133.6M

Balance Sheet

Concept	2021 Q4	2021 Q3	2020 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$264.4M	$194.3M	$455.1M
YoY Change	17.18%	-57.31%	97.78%
Cash & Equivalents	$264.4M	$194.3M	$455.1M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables	$236.8M	$239.0M	$231.9M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$501.1M	$433.3M	$687.0M
YoY Change	10.84%	-36.93%	50.49%
LONG-TERM ASSETS
Property, Plant & Equipment	$5.051B	$4.725B	$4.762B
YoY Change	4.94%	-0.78%	-0.64%
Goodwill
YoY Change
Intangibles	$202.0M
YoY Change	386.79%
Long-Term Investments	$462.9M	$486.1M	$463.0M
YoY Change	0.32%	4.98%	44.28%
Other Assets	$247.8M	$235.0M	$238.4M
YoY Change	5.26%	-1.44%	-27.63%
Total Long-Term Assets	$5.885B	$5.576B	$5.590B
YoY Change	4.58%	-0.26%	0.44%
TOTAL ASSETS
Total Short-Term Assets	$501.1M	$433.3M	$687.0M
Total Long-Term Assets	$5.885B	$5.576B	$5.590B
Total Assets	$6.386B	$6.009B	$6.277B
YoY Change	5.04%	-4.27%	4.24%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$106.1M	$105.3M	$111.4M
YoY Change	2.94%	-5.47%	-30.38%
Accrued Expenses	$6.910M	$8.914M	$11.20M
YoY Change	-36.02%	-20.41%	-67.54%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$163.8M	$132.2M	$137.0M
YoY Change	1.38%	-3.52%	-35.1%
LONG-TERM LIABILITIES
Long-Term Debt	$2.639B	$2.114B	$2.129B
YoY Change	29.87%	-0.71%	27.36%
Other Long-Term Liabilities	$117.0M	$126.3M	$147.6M
YoY Change	-20.18%	-14.42%	11.14%
Total Long-Term Liabilities	$2.756B	$2.240B	$2.276B
YoY Change	26.5%	-1.6%	26.17%
TOTAL LIABILITIES
Total Short-Term Liabilities	$163.8M	$132.2M	$137.0M
Total Long-Term Liabilities	$2.756B	$2.240B	$2.276B
Total Liabilities	$2.925B	$2.378B	$2.416B
YoY Change	24.86%	-1.58%	19.54%
SHAREHOLDERS EQUITY
Retained Earnings	-$609.3M	-$495.0M	-$308.0M
YoY Change	47.56%	60.74%	50.09%
Common Stock	$1.275M	$1.298M	$1.325M
YoY Change	-3.34%	-2.04%	-1.27%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$2.916B	$3.087B	$3.370B
YoY Change
Total Liabilities & Shareholders Equity	$6.386B	$6.009B	$6.277B
YoY Change	5.04%	-4.27%	4.24%

Cashflow Statement

Concept	2021 Q4	2021 Q3	2020 Q3
OPERATING ACTIVITIES
Net Income	-$56.45M	$893.0K	-$22.79M
YoY Change	23.64%	-103.92%	-343.51%
Depreciation, Depletion And Amortization	$59.24M	$57.77M	$57.50M
YoY Change	-9.15%	0.47%	20.29%
Cash From Operating Activities	$63.21M	$30.86M	$42.40M
YoY Change	53.8%	-27.23%	-29.1%
INVESTING ACTIVITIES
Capital Expenditures	-$262.9M	-$51.22M	-$89.50M
YoY Change	218.66%	-42.78%	-21.49%
Acquisitions
YoY Change
Other Investing Activities	-$9.095M	$24.91M	-$1.600M
YoY Change	-66.93%	-1656.88%	-104.3%
Cash From Investing Activities	-$272.0M	-$26.31M	-$91.00M
YoY Change	147.26%	-71.09%	18.64%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	281.7M	-14.07M	-189.7M
YoY Change	-275.51%	-92.59%	424.03%
NET CHANGE
Cash From Operating Activities	63.21M	30.86M	42.40M
Cash From Investing Activities	-272.0M	-26.31M	-91.00M
Cash From Financing Activities	281.7M	-14.07M	-189.7M
Net Change In Cash	72.92M	-9.516M	-238.3M
YoY Change	-131.79%	-96.01%	348.78%
FREE CASH FLOW
Cash From Operating Activities	$63.21M	$30.86M	$42.40M
Capital Expenditures	-$262.9M	-$51.22M	-$89.50M
Free Cash Flow	$326.1M	$82.07M	$131.9M
YoY Change	163.84%	-37.78%	-24.11%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	131456000
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	131351000
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	133620000
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	131456000
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	133924000
CY2021Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2020Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2020Q4	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	us-gaap:OtherLiabilities
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	131351000
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	133620000
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	131456000
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	133924000
	dei	Entity Central Index Key EntityCentralIndexKey	0001689796
CY2021Q3	us-gaap	Finance Lease Liability Statement Of Financial Position Extensible List FinanceLeaseLiabilityStatementOfFinancialPositionExtensibleList	us-gaap:OtherLiabilities
CY2020Q4	us-gaap	Finance Lease Liability Statement Of Financial Position Extensible List FinanceLeaseLiabilityStatementOfFinancialPositionExtensibleList	us-gaap:OtherLiabilities
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	131778000
CY2021Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	129704000
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.00
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.18
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.18
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.14
CY2021Q3	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	us-gaap:OtherLiabilities
CY2021Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	130000
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-23615000
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-24308000
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-18377000
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.00
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.18
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.18
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.14
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2021-09-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	001-37994
	dei	Entity Registrant Name EntityRegistrantName	JBG SMITH PROPERTIES
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MD
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	81-4307010
	dei	Entity Address Address Line1 EntityAddressAddressLine1	4747 Bethesda Avenue
	dei	Entity Address Address Line2 EntityAddressAddressLine2	Suite 200
	dei	Entity Address City Or Town EntityAddressCityOrTown	Bethesda
	dei	Entity Address State Or Province EntityAddressStateOrProvince	MD
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	20814
	dei	City Area Code CityAreaCode	240
	dei	Local Phone Number LocalPhoneNumber	333-3600
	dei	Security12b Title Security12bTitle	Common Shares, par value $0.01 per share
	dei	Trading Symbol TradingSymbol	JBGS
	dei	Security Exchange Name SecurityExchangeName	NYSE
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	jbgs	Allocated Sharebased Compensation Expense Formation Transaction AllocatedSharebasedCompensationExpenseFormationTransaction	25432000
CY2021Q3	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	4680028000
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
CY2021Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	129725289
CY2021Q3	us-gaap	Land And Land Improvements LandAndLandImprovements	1358299000
CY2020Q4	us-gaap	Land And Land Improvements LandAndLandImprovements	1391472000
CY2021Q3	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	4368477000
CY2020Q4	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	4341103000
CY2021Q3	us-gaap	Development In Process DevelopmentInProcess	299359000
CY2020Q4	us-gaap	Development In Process DevelopmentInProcess	268056000
CY2021Q3	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	6026135000
CY2020Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	6000631000
CY2021Q3	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	1346107000
CY2020Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	1232690000
CY2021Q3	jbgs	Transactionandothercosts Transactionandothercosts	2951000
CY2020Q3	jbgs	Transactionandothercosts Transactionandothercosts	845000
CY2020Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	4767941000
CY2021Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	194277000
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	225600000
CY2021Q3	us-gaap	Restricted Cash RestrictedCash	34900000
CY2020Q4	us-gaap	Restricted Cash RestrictedCash	37736000
CY2021Q3	us-gaap	Accounts And Notes Receivable Net AccountsAndNotesReceivableNet	51128000
CY2020Q4	us-gaap	Accounts And Notes Receivable Net AccountsAndNotesReceivableNet	55903000
CY2021Q3	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	187882000
CY2020Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	170547000
CY2021Q3	us-gaap	Real Estate Investments Unconsolidated Real Estate And Other Joint Ventures RealEstateInvestmentsUnconsolidatedRealEstateAndOtherJointVentures	486052000
CY2020Q4	us-gaap	Real Estate Investments Unconsolidated Real Estate And Other Joint Ventures RealEstateInvestmentsUnconsolidatedRealEstateAndOtherJointVentures	461369000
CY2021Q3	us-gaap	Other Assets OtherAssets	300537000
CY2020Q4	us-gaap	Other Assets OtherAssets	286575000
CY2021Q3	us-gaap	Assets Held For Sale Not Part Of Disposal Group AssetsHeldForSaleNotPartOfDisposalGroup	74174000
CY2020Q4	us-gaap	Assets Held For Sale Not Part Of Disposal Group AssetsHeldForSaleNotPartOfDisposalGroup	73876000
CY2021Q3	us-gaap	Assets Assets	6008978000
CY2020Q4	us-gaap	Assets Assets	6079547000
CY2021Q3	us-gaap	Secured Debt SecuredDebt	1674285000
CY2020Q4	us-gaap	Secured Debt SecuredDebt	1593738000
CY2021Q3	us-gaap	Unsecured Debt UnsecuredDebt	398493000
CY2020Q4	us-gaap	Unsecured Debt UnsecuredDebt	397979000
CY2021Q3	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	105307000
CY2020Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	103102000
CY2021Q3	us-gaap	Other Liabilities OtherLiabilities	200204000
CY2020Q4	us-gaap	Other Liabilities OtherLiabilities	247774000
CY2021Q3	us-gaap	Liabilities Liabilities	2378289000
CY2020Q4	us-gaap	Liabilities Liabilities	2342593000
CY2021Q3	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	526913000
CY2020Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	530748000
CY2021Q3	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
CY2021Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	200000000
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	200000000
CY2021Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0
CY2020Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0
CY2021Q3	us-gaap	Preferred Stock Value PreferredStockValue	0
CY2020Q4	us-gaap	Preferred Stock Value PreferredStockValue	0
CY2021Q3	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
CY2021Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	500000000
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	500000000
CY2021Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	129704000
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	131778000
CY2021Q3	us-gaap	Common Stock Value CommonStockValue	1298000
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	1319000
CY2021Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	3606462000
CY2020Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	3657643000
	jbgs	Transactionandothercosts Transactionandothercosts	8911000
CY2021Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-495033000
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-412944000
CY2021Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-25446000
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-39979000
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	3087281000
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	3206039000
CY2021Q3	us-gaap	Minority Interest MinorityInterest	16495000
CY2020Q4	us-gaap	Minority Interest MinorityInterest	167000
CY2021Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3103776000
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3206206000
CY2021Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	6008978000
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	6079547000
CY2021Q3	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	125900000
CY2020Q3	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	118680000
	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	370960000
	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	354519000
CY2021Q3	jbgs	Revenuefrom Contractwith Customer Including Reimbursements RevenuefromContractwithCustomerIncludingReimbursements	25842000
CY2020Q3	jbgs	Revenuefrom Contractwith Customer Including Reimbursements RevenuefromContractwithCustomerIncludingReimbursements	26987000
	jbgs	Revenuefrom Contractwith Customer Including Reimbursements RevenuefromContractwithCustomerIncludingReimbursements	90694000
	jbgs	Revenuefrom Contractwith Customer Including Reimbursements RevenuefromContractwithCustomerIncludingReimbursements	83870000
CY2021Q3	us-gaap	Other Income OtherIncome	5280000
CY2020Q3	us-gaap	Other Income OtherIncome	5368000
	us-gaap	Other Income OtherIncome	15301000
	us-gaap	Other Income OtherIncome	15705000
CY2021Q3	us-gaap	Revenues Revenues	157022000
CY2020Q3	us-gaap	Revenues Revenues	151035000
	us-gaap	Revenues Revenues	476955000
	us-gaap	Revenues Revenues	454094000
CY2021Q3	us-gaap	Depreciation And Amortization DepreciationAndAmortization	56726000
CY2020Q3	us-gaap	Depreciation And Amortization DepreciationAndAmortization	56481000
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	178130000
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	157586000
CY2021Q3	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	40198000
CY2020Q3	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	37572000
	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	109929000
	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	105867000
CY2021Q3	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	18259000
CY2020Q3	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	17354000
	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	55127000
	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	53422000
CY2021Q3	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	12105000
CY2020Q3	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	11086000
	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	38475000
	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	37478000
CY2021Q3	jbgs	Third Party Real Estate Services ThirdPartyRealEstateServices	25542000
CY2020Q3	jbgs	Third Party Real Estate Services ThirdPartyRealEstateServices	28207000
	jbgs	Third Party Real Estate Services ThirdPartyRealEstateServices	80035000
	jbgs	Third Party Real Estate Services ThirdPartyRealEstateServices	86260000
CY2021Q3	jbgs	Allocated Sharebased Compensation Expense Formation Transaction AllocatedSharebasedCompensationExpenseFormationTransaction	3480000
CY2020Q3	jbgs	Allocated Sharebased Compensation Expense Formation Transaction AllocatedSharebasedCompensationExpenseFormationTransaction	7133000
	jbgs	Allocated Sharebased Compensation Expense Formation Transaction AllocatedSharebasedCompensationExpenseFormationTransaction	12866000
	jbgs	Transactionandothercosts Transactionandothercosts	7526000
CY2021Q3	us-gaap	Costs And Expenses CostsAndExpenses	159261000
CY2020Q3	us-gaap	Costs And Expenses CostsAndExpenses	158678000
	us-gaap	Costs And Expenses CostsAndExpenses	483473000
	us-gaap	Costs And Expenses CostsAndExpenses	473571000
CY2021Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	20503000
CY2020Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-965000
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	23513000
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-17142000
CY2021Q3	us-gaap	Investment Income Net InvestmentIncomeNet	192000
	us-gaap	Investment Income Net InvestmentIncomeNet	163000
	us-gaap	Investment Income Net InvestmentIncomeNet	1021000
CY2021Q3	us-gaap	Interest Expense InterestExpense	17243000
CY2020Q3	us-gaap	Interest Expense InterestExpense	16885000
	us-gaap	Interest Expense InterestExpense	50312000
	us-gaap	Interest Expense InterestExpense	44660000
	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	11290000
	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	59477000
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-33000
CY2021Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	3452000
CY2020Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-17850000
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-15346000
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-1337000
CY2021Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1213000
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-25493000
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-21864000
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-20814000
CY2021Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	217000
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-488000
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4527000
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-3721000
CY2021Q3	us-gaap	Profit Loss ProfitLoss	996000
CY2020Q3	us-gaap	Profit Loss ProfitLoss	-25005000
	us-gaap	Profit Loss ProfitLoss	-26391000
	us-gaap	Profit Loss ProfitLoss	-17093000
CY2021Q3	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	103000
CY2020Q3	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-2212000
	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-2472000
	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-445000
	us-gaap	Net Income Loss Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossAttributableToNonredeemableNoncontrollingInterest	-1108000
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	893000
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	-22793000
	us-gaap	Net Income Loss NetIncomeLoss	-22811000
	us-gaap	Net Income Loss NetIncomeLoss	-16648000
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.00
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.18
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.18
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.14
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	131351000
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	133620000
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	133924000
CY2021Q3	us-gaap	Profit Loss ProfitLoss	996000
CY2020Q3	us-gaap	Profit Loss ProfitLoss	-25005000
	us-gaap	Profit Loss ProfitLoss	-26391000
	us-gaap	Profit Loss ProfitLoss	-17093000
CY2021Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-329000
CY2020Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-278000
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	4678000
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-39489000
CY2021Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-3901000
CY2020Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-3823000
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-11476000
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-8137000
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	3572000
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	3545000
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	16154000
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-31352000
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	4568000
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-21460000
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-10237000
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-48445000
CY2021Q3	jbgs	Comprehensive Net Loss Attributable To Redeemable Noncontrolling Interest ComprehensiveNetLossAttributableToRedeemableNoncontrollingInterest	103000
CY2020Q3	jbgs	Comprehensive Net Loss Attributable To Redeemable Noncontrolling Interest ComprehensiveNetLossAttributableToRedeemableNoncontrollingInterest	-2212000
	jbgs	Comprehensive Net Loss Attributable To Redeemable Noncontrolling Interest ComprehensiveNetLossAttributableToRedeemableNoncontrollingInterest	-2472000
	jbgs	Comprehensive Net Loss Attributable To Redeemable Noncontrolling Interest ComprehensiveNetLossAttributableToRedeemableNoncontrollingInterest	-445000
	us-gaap	Net Income Loss Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossAttributableToNonredeemableNoncontrollingInterest	-1108000
CY2021Q3	jbgs	Comprehensive Income Loss Net Of Tax Attributable To Redeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxAttributableToRedeemableNoncontrollingInterest	413000
CY2020Q3	jbgs	Comprehensive Income Loss Net Of Tax Attributable To Redeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxAttributableToRedeemableNoncontrollingInterest	309000
	jbgs	Comprehensive Income Loss Net Of Tax Attributable To Redeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxAttributableToRedeemableNoncontrollingInterest	1621000
	jbgs	Comprehensive Income Loss Net Of Tax Attributable To Redeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxAttributableToRedeemableNoncontrollingInterest	-3446000
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	4052000
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-19557000
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-8278000
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-44554000
CY2021Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3173241000
CY2021Q3	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	893000
CY2021Q3	us-gaap	Stock Issued During Period Value Conversion Of Units StockIssuedDuringPeriodValueConversionOfUnits	5670000
CY2021Q3	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	68930000
CY2021Q3	jbgs	Stock Issued During Period Value Employee Incentive Compensation And Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeIncentiveCompensationAndEmployeeStockPurchasePlan	210000
CY2021Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.225
CY2021Q3	us-gaap	Dividends Dividends	29696000
CY2021Q3	jbgs	Minority Interest Increase Decrease From Contributions Distributions To Noncontrolling Interest Holders MinorityInterestIncreaseDecreaseFromContributionsDistributionsToNoncontrollingInterestHolders	-45000
CY2021Q3	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	18861000
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	3572000
CY2021Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3103776000
CY2020Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3440686000
CY2020Q3	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	-22793000
CY2020Q3	us-gaap	Stock Issued During Period Value Conversion Of Units StockIssuedDuringPeriodValueConversionOfUnits	4796000
CY2020Q3	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	38377000
CY2020Q3	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	186000
CY2020Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.225
CY2020Q3	us-gaap	Dividends Dividends	30020000
CY2020Q3	jbgs	Minority Interest Increase Decrease From Contributions Distributions To Noncontrolling Interest Holders MinorityInterestIncreaseDecreaseFromContributionsDistributionsToNoncontrollingInterestHolders	-12000
CY2020Q3	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	11927000
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	3545000
CY2020Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3369938000
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3206206000
	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	-23919000
	us-gaap	Stock Issued During Period Value Conversion Of Units StockIssuedDuringPeriodValueConversionOfUnits	27350000
	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	88133000
	jbgs	Stock Issued During Period Value Employee Incentive Compensation And Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeIncentiveCompensationAndEmployeeStockPurchasePlan	1549000
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.45
	us-gaap	Dividends Dividends	59278000
	jbgs	Minority Interest Increase Decrease From Contributions Distributions To Noncontrolling Interest Holders MinorityInterestIncreaseDecreaseFromContributionsDistributionsToNoncontrollingInterestHolders	17436000
	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	6411000
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	16154000
CY2021Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3103776000
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3386677000
	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	-16648000
	us-gaap	Stock Issued During Period Value Conversion Of Units StockIssuedDuringPeriodValueConversionOfUnits	40674000
	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	79569000
	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	1320000
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.45
	us-gaap	Dividends Dividends	60163000
	jbgs	Minority Interest Increase Decrease From Contributions Distributions To Noncontrolling Interest Holders MinorityInterestIncreaseDecreaseFromContributionsDistributionsToNoncontrollingInterestHolders	-22000
	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	129021000
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-31352000
CY2020Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3369938000
	us-gaap	Profit Loss ProfitLoss	-26391000
	us-gaap	Profit Loss ProfitLoss	-17093000
	us-gaap	Share Based Compensation ShareBasedCompensation	38320000
	us-gaap	Share Based Compensation ShareBasedCompensation	53183000
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	181217000
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	160395000
	us-gaap	Straight Line Rent StraightLineRent	17463000
	us-gaap	Straight Line Rent StraightLineRent	19124000
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	23513000
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-17142000
	jbgs	Amortization Of Acquired Below Market Lease Net Of Acquired Above Market Lease AmortizationOfAcquiredBelowMarketLeaseNetOfAcquiredAboveMarketLease	896000
	jbgs	Amortization Of Acquired Below Market Lease Net Of Acquired Above Market Lease AmortizationOfAcquiredBelowMarketLeaseNetOfAcquiredAboveMarketLease	356000
	us-gaap	Amortization Of Lease Incentives AmortizationOfLeaseIncentives	6083000
	us-gaap	Amortization Of Lease Incentives AmortizationOfLeaseIncentives	5144000
	jbgs	Gain Loss On Debt Extinguishment Including Prepayment Penalty GainLossOnDebtExtinguishmentIncludingPrepaymentPenalty	-33000
	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	11290000
	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	59477000
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1071000
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	14750000
	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	13212000
	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	3697000
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-583000
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-265000
	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	-3704000
	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	4757000
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	12059000
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	11566000
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	5954000
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	1366000
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-4120000
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-15747000
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	154412000
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	127855000
	jbgs	Payments To Develop Real Estate Assets Construction In Progress And Real Estate Additions PaymentsToDevelopRealEstateAssetsConstructionInProgressAndRealEstateAdditions	108361000
	jbgs	Payments To Develop Real Estate Assets Construction In Progress And Real Estate Additions PaymentsToDevelopRealEstateAssetsConstructionInProgressAndRealEstateAdditions	245456000
	jbgs	Payments For Deposits On Real Estate And Other Acquisitions PaymentsForDepositsOnRealEstateAndOtherAcquisitions	10263000
	jbgs	Payments For Deposits On Real Estate And Other Acquisitions PaymentsForDepositsOnRealEstateAndOtherAcquisitions	25274000
	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	14370000
	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	154493000
	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	40188000
	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	70818000
	us-gaap	Payments To Acquire Real Estate And Real Estate Joint Ventures PaymentsToAcquireRealEstateAndRealEstateJointVentures	32685000
	us-gaap	Payments To Acquire Real Estate And Real Estate Joint Ventures PaymentsToAcquireRealEstateAndRealEstateJointVentures	12277000
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-96751000
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-57696000
	us-gaap	Proceeds From Notes Payable ProceedsFromNotesPayable	85000000
	us-gaap	Proceeds From Notes Payable ProceedsFromNotesPayable	580105000
	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	500000000
	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	100000000
	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	4462000
	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	6680000
	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	700000000
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	5747000
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	14856000
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	3281000
	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	880000
	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	887000
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	82300000
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	74434000
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	88928000
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	90347000
	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	13705000
	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	11333000
	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	22000
	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	23000
	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	17464000
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-91820000
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	280038000
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-34159000
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	350197000
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	263336000
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	142516000
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	229177000
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	492713000
CY2021Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	194277000
CY2020Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	455111000
CY2021Q3	us-gaap	Restricted Cash RestrictedCash	34900000
CY2020Q3	us-gaap	Restricted Cash RestrictedCash	37602000
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	229177000
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	492713000
	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	4854000
	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	11545000
	us-gaap	Interest Paid Net InterestPaidNet	46010000
	us-gaap	Interest Paid Net InterestPaidNet	40744000
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	41660000
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	51092000
	jbgs	Write Off Of Fully Depreciated Assets Including Asset Impairment WriteOffOfFullyDepreciatedAssetsIncludingAssetImpairment	46278000
	jbgs	Write Off Of Fully Depreciated Assets Including Asset Impairment WriteOffOfFullyDepreciatedAssetsIncludingAssetImpairment	29393000
	jbgs	Deconsolidation Of Properties DeconsolidationOfProperties	26476000
	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	27350000
	us-gaap	Conversion Of Stock Amount Converted1 ConversionOfStockAmountConverted1	40674000
	jbgs	Recognition Derecognition Of Operating Lease Right Of Use Assets RecognitionDerecognitionOfOperatingLeaseRightOfUseAssets	-13151000
	jbgs	Recognition Derecognition Of Liabilities Related To Operating Lease Right Of Use Assets RecognitionDerecognitionOfLiabilitiesRelatedToOperatingLeaseRightOfUseAssets	-13151000
	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	42354000
	jbgs	Finance Lease Liability Obtained In Exchange For Right Of Use Asset FinanceLeaseLiabilityObtainedInExchangeForRightOfUseAsset	40684000
	us-gaap	Operating Lease Payments OperatingLeasePayments	1761000
	us-gaap	Operating Lease Payments OperatingLeasePayments	4603000
CY2021Q3	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	63
	us-gaap	Use Of Estimates UseOfEstimates	<p style="font-family:'Times New Roman','Times','serif';font-size:10pt;font-weight:bold;text-align:justify;margin:0pt 0pt 6pt 0pt;"><i style="font-style:italic;font-weight:normal;">Use of Estimates</i></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt 0pt 12pt 0pt;">The preparation of the financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenue and expenses during the reporting periods. The most significant of these estimates include: (i) the underlying cash flows and holding periods used in assessing impairment of long-lived assets; (ii) the determination of useful lives for tangible and intangible assets; and (iii) the assessment of the collectability of receivables, including deferred rent receivables. Longer estimated holding periods for real estate assets directly reduce the likelihood of recording an impairment loss. If there is a change in the strategy for an asset or if market conditions dictate an earlier sale date, an impairment loss may be recognized, and such loss could be material.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt 0pt 12pt 0pt;">In March 2020, the World Health Organization declared a global pandemic related to the novel coronavirus ("COVID-19"). The significance, extent and duration of the impact of COVID-19 on us and our tenants remains largely uncertain and dependent on near-term and future developments that cannot be accurately predicted at this time, such as the continued severity, duration, transmission rate and geographic spread of COVID-19, the distribution, effectiveness and willingness of people to take COVID-19 vaccines, the extent and effectiveness of the containment measures taken, and the response of the overall economy, the financial markets and the population, particularly in the area in which we operate. The ultimate adverse impact of COVID-19 is highly uncertain; however, the effects of COVID-19 on us and our tenants have affected estimates used in the preparation of the underlying cash flows used in assessing our long-lived assets for impairment and the assessment of the collectability of receivables from tenants, including deferred rent receivables. We have made what we believe to be appropriate accounting estimates based on the facts and circumstances available as of the reporting date. To the extent these estimates differ from actual results, our consolidated financial statements may be materially affected. </p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt;">Due to the business disruptions and challenges caused by COVID-19, we have provided rent deferrals and other lease concessions to certain tenants. We have entered into agreements with certain tenants, many of which have been placed on the cash basis of accounting, resulting in the deferral to future periods or abatement of $492,000 of rent that had been contractually due in the third quarter of 2021. We are negotiating additional rent deferrals and other lease concessions with </p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt 0pt 12pt 0pt;">some of our tenants, which have been considered when establishing credit losses against billed and deferred rent receivables. During 2020, we began recognizing revenue from substantially all co-working tenants and retailers except for grocers, pharmacies, essential businesses and certain national credit tenants on the cash basis of accounting.</p>
CY2021Q3	jbgs	Lease Deferral Requests Due To Unusual Event LeaseDeferralRequestsDueToUnusualEvent	492000
CY2021Q3	us-gaap	Real Estate Investments Unconsolidated Real Estate And Other Joint Ventures RealEstateInvestmentsUnconsolidatedRealEstateAndOtherJointVentures	486052000
CY2020Q4	us-gaap	Real Estate Investments Unconsolidated Real Estate And Other Joint Ventures RealEstateInvestmentsUnconsolidatedRealEstateAndOtherJointVentures	461369000
CY2021Q3	us-gaap	Equity Method Investment Difference Between Carrying Amount And Underlying Equity EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity	20200000
CY2020Q4	us-gaap	Equity Method Investment Difference Between Carrying Amount And Underlying Equity EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity	18900000
CY2021Q3	us-gaap	Deferred Costs Leasing Net DeferredCostsLeasingNet	116544000
CY2020Q4	us-gaap	Deferred Costs Leasing Net DeferredCostsLeasingNet	117141000
CY2021Q3	jbgs	Management And Leasing Contracts Net ManagementAndLeasingContractsNet	21084000
CY2020Q4	jbgs	Management And Leasing Contracts Net ManagementAndLeasingContractsNet	25512000
CY2021Q3	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	17360000
CY2020Q4	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	17500000
CY2021Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	3326000
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	3542000
CY2021Q3	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	41675000
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	41996000
CY2021Q3	us-gaap	Prepaid Expense Current And Noncurrent PrepaidExpenseCurrentAndNoncurrent	20171000
CY2020Q4	us-gaap	Prepaid Expense Current And Noncurrent PrepaidExpenseCurrentAndNoncurrent	14000000
CY2021Q3	us-gaap	Debt Issuance Costs Line Of Credit Arrangements Net DebtIssuanceCostsLineOfCreditArrangementsNet	9352000
CY2020Q4	us-gaap	Debt Issuance Costs Line Of Credit Arrangements Net DebtIssuanceCostsLineOfCreditArrangementsNet	6656000
CY2021Q3	us-gaap	Deposit Assets DepositAssets	12026000
CY2020Q4	us-gaap	Deposit Assets DepositAssets	28560000
CY2021Q3	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	22214000
CY2020Q4	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	16103000
CY2021Q3	us-gaap	Other Assets OtherAssets	300537000
CY2020Q4	us-gaap	Other Assets OtherAssets	286575000
CY2021Q3	us-gaap	Below Market Lease Net BelowMarketLeaseNet	8567000
CY2020Q4	us-gaap	Below Market Lease Net BelowMarketLeaseNet	10300000
CY2020Q4	jbgs	Lease Assumptions Liabilities LeaseAssumptionsLiabilities	10126000
CY2021Q3	us-gaap	Incentive From Lessor IncentiveFromLessor	14125000
CY2020Q4	us-gaap	Incentive From Lessor IncentiveFromLessor	13913000
CY2020Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	2509000
CY2020Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	34075000
CY2021Q3	us-gaap	Derivative Instruments In Hedges Liabilities At Fair Value DerivativeInstrumentsInHedgesLiabilitiesAtFairValue	28406000
CY2020Q4	us-gaap	Derivative Instruments In Hedges Liabilities At Fair Value DerivativeInstrumentsInHedgesLiabilitiesAtFairValue	44222000
CY2021Q3	jbgs	Lease Assumptions Liabilities LeaseAssumptionsLiabilities	6257000
CY2021Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	8914000
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	10752000
CY2021Q3	us-gaap	Finance Lease Liability FinanceLeaseLiability	40733000
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	40221000
CY2021Q3	us-gaap	Advance Rent AdvanceRent	20343000
CY2020Q4	us-gaap	Advance Rent AdvanceRent	19809000
CY2021Q3	us-gaap	Security Deposit Liability SecurityDepositLiability	17953000
CY2020Q4	us-gaap	Security Deposit Liability SecurityDepositLiability	13654000
CY2021Q3	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	18168000
CY2020Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	18242000
CY2021Q3	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	6290000
CY2021Q3	jbgs	Deferred Purchase Price DeferredPurchasePrice	19639000
CY2020Q4	jbgs	Deferred Purchase Price DeferredPurchasePrice	19479000
CY2021Q3	us-gaap	Other Sundry Liabilities OtherSundryLiabilities	10809000
CY2020Q4	us-gaap	Other Sundry Liabilities OtherSundryLiabilities	10472000
CY2021Q3	us-gaap	Other Liabilities OtherLiabilities	200204000
CY2020Q4	us-gaap	Other Liabilities OtherLiabilities	247774000
CY2021Q2	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	544639000
CY2020Q2	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	499083000
CY2021Q3	jbgs	Temporary Equity Redemptionsof Op Units TemporaryEquityRedemptionsofOPUnits	5670000
CY2020Q3	jbgs	Temporary Equity Redemptionsof Op Units TemporaryEquityRedemptionsofOPUnits	4796000
CY2021Q3	us-gaap	Temporary Equity Net Income TemporaryEquityNetIncome	103000
CY2020Q3	us-gaap	Temporary Equity Net Income TemporaryEquityNetIncome	-2212000
CY2021Q3	jbgs	Temporary Equity Other Comprehensive Income Loss TemporaryEquityOtherComprehensiveIncomeLoss	413000
CY2020Q3	jbgs	Temporary Equity Other Comprehensive Income Loss TemporaryEquityOtherComprehensiveIncomeLoss	309000
CY2021Q3	jbgs	Temporary Equity Contributions Distributions TemporaryEquityContributionsDistributions	-3993000
CY2020Q3	jbgs	Temporary Equity Contributions Distributions TemporaryEquityContributionsDistributions	-3723000
CY2021Q3	jbgs	Temporary Equity Sharebased Compensation TemporaryEquitySharebasedCompensation	10695000
CY2020Q3	jbgs	Temporary Equity Sharebased Compensation TemporaryEquitySharebasedCompensation	14496000
CY2021Q3	jbgs	Temporary Equity Increase Decrease To Redemption Value TemporaryEquityIncreaseDecreaseToRedemptionValue	-19274000
CY2020Q3	jbgs	Temporary Equity Increase Decrease To Redemption Value TemporaryEquityIncreaseDecreaseToRedemptionValue	-12236000
CY2021Q3	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	526913000
CY2020Q3	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	490921000
CY2020Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	530748000
CY2019Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	612758000
	jbgs	Temporary Equity Redemptionsof Op Units TemporaryEquityRedemptionsofOPUnits	27350000
	jbgs	Temporary Equity Redemptionsof Op Units TemporaryEquityRedemptionsofOPUnits	40674000
	us-gaap	Stock Issued During Period Value Issued For Services StockIssuedDuringPeriodValueIssuedForServices	5614000
	us-gaap	Stock Issued During Period Value Issued For Services StockIssuedDuringPeriodValueIssuedForServices	4066000
	us-gaap	Temporary Equity Net Income TemporaryEquityNetIncome	-2472000
	us-gaap	Temporary Equity Net Income TemporaryEquityNetIncome	-445000
	jbgs	Temporary Equity Other Comprehensive Income Loss TemporaryEquityOtherComprehensiveIncomeLoss	1621000
	jbgs	Temporary Equity Other Comprehensive Income Loss TemporaryEquityOtherComprehensiveIncomeLoss	-3446000
	jbgs	Temporary Equity Contributions Distributions TemporaryEquityContributionsDistributions	-9282000
	jbgs	Temporary Equity Contributions Distributions TemporaryEquityContributionsDistributions	-7505000
	jbgs	Temporary Equity Sharebased Compensation TemporaryEquitySharebasedCompensation	36066000
	jbgs	Temporary Equity Sharebased Compensation TemporaryEquitySharebasedCompensation	51742000
	jbgs	Temporary Equity Increase Decrease To Redemption Value TemporaryEquityIncreaseDecreaseToRedemptionValue	-8032000
	jbgs	Temporary Equity Increase Decrease To Redemption Value TemporaryEquityIncreaseDecreaseToRedemptionValue	-125575000
CY2021Q3	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	526913000
CY2020Q3	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	490921000
CY2021Q3	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	114100000
CY2020Q3	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	109321000
	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	339321000
	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	326866000
CY2021Q3	us-gaap	Operating Lease Variable Lease Income OperatingLeaseVariableLeaseIncome	11800000
CY2020Q3	us-gaap	Operating Lease Variable Lease Income OperatingLeaseVariableLeaseIncome	9359000
	us-gaap	Operating Lease Variable Lease Income OperatingLeaseVariableLeaseIncome	31639000
	us-gaap	Operating Lease Variable Lease Income OperatingLeaseVariableLeaseIncome	27653000
CY2021Q3	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	125900000
CY2020Q3	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	118680000
	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	370960000
	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	354519000
CY2021Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Compensation Cost1 SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1	12168000
CY2020Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Compensation Cost1 SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1	16186000
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Compensation Cost1 SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1	40461000
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Compensation Cost1 SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1	56571000
CY2021Q3	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	740000
CY2020Q3	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	1177000
	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	2141000
	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	3388000
CY2021Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	11428000
CY2020Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	15009000
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	38320000
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	53183000
CY2021Q3	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions	73700000
	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P3Y6M
CY2021Q3	jbgs	Demolition Costs DemolitionCosts	1422000
CY2020Q3	jbgs	Demolition Costs DemolitionCosts	179000
	jbgs	Demolition Costs DemolitionCosts	2869000
	jbgs	Demolition Costs DemolitionCosts	179000
CY2021Q3	us-gaap	Restructuring Charges RestructuringCharges	154000
CY2020Q3	us-gaap	Restructuring Charges RestructuringCharges	406000
	us-gaap	Restructuring Charges RestructuringCharges	616000
	us-gaap	Restructuring Charges RestructuringCharges	3066000
CY2021Q3	jbgs	Completed Potential Integrated Transaction Costs CompletedPotentialIntegratedTransactionCosts	1375000
CY2020Q3	jbgs	Completed Potential Integrated Transaction Costs CompletedPotentialIntegratedTransactionCosts	260000
	jbgs	Completed Potential Integrated Transaction Costs CompletedPotentialIntegratedTransactionCosts	5426000
	jbgs	Completed Potential Integrated Transaction Costs CompletedPotentialIntegratedTransactionCosts	281000
	us-gaap	Other Expenses OtherExpenses	4000000
CY2021Q3	jbgs	Transactionandothercosts Transactionandothercosts	2951000
CY2020Q3	jbgs	Transactionandothercosts Transactionandothercosts	845000
	jbgs	Transactionandothercosts Transactionandothercosts	8911000
	jbgs	Transactionandothercosts Transactionandothercosts	7526000
CY2021Q3	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	17278000
CY2020Q3	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	18274000
	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	50744000
	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	52751000
CY2021Q3	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	1096000
CY2020Q3	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	857000
	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	4854000
	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	11545000
CY2021Q3	us-gaap	Interest Expense InterestExpense	17243000
CY2020Q3	us-gaap	Interest Expense InterestExpense	16885000
	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	3188000
	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	2255000
CY2021Q3	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	430000
CY2020Q3	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	464000
	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	1284000
	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	1026000
CY2021Q3	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-37000
CY2020Q3	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-202000
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	50000
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-173000
CY2021Q3	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	1598000
CY2020Q3	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	2912000
	us-gaap	Interest Expense InterestExpense	50312000
	us-gaap	Interest Expense InterestExpense	44660000
CY2020Q1	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	500000000
CY2021Q3	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	2300000
	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	2900000
CY2021Q3	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	68900000
	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	88100000
CY2021Q3	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	29.73
	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	29.99
CY2020Q3	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	1400000
	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	2900000
CY2020Q3	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	38400000
	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	79600000
CY2020Q3	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	26.64
	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	27.82
	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	6700000
	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	192900000
	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	28.71
CY2021Q3	us-gaap	Profit Loss ProfitLoss	996000
CY2020Q3	us-gaap	Profit Loss ProfitLoss	-25005000
	us-gaap	Profit Loss ProfitLoss	-26391000
	us-gaap	Profit Loss ProfitLoss	-17093000
CY2021Q3	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	103000
CY2020Q3	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-2212000
	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-2472000
	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-445000
	us-gaap	Net Income Loss Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossAttributableToNonredeemableNoncontrollingInterest	-1108000
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	893000
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	-22793000
	us-gaap	Net Income Loss NetIncomeLoss	-22811000
	us-gaap	Net Income Loss NetIncomeLoss	-16648000
CY2021Q3	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	763000
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.00
CY2020Q3	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	822000
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	1497000
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	1729000
CY2021Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	130000
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-23615000
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-24308000
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-18377000
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	131351000
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	133620000
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	131456000
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	133924000
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.18
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.18
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.14
CY2021Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	5200000
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	4900000
CY2020Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	4400000
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	4900000
CY2021Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.225
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-27800000
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-43900000
	us-gaap	Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths	-14600000
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3
CY2021Q3	jbgs	Revenuefrom Contractwith Customer Excluding Reimbursements RevenuefromContractwithCustomerExcludingReimbursements	14125000
CY2020Q3	jbgs	Revenuefrom Contractwith Customer Excluding Reimbursements RevenuefromContractwithCustomerExcludingReimbursements	13279000
	jbgs	Revenuefrom Contractwith Customer Excluding Reimbursements RevenuefromContractwithCustomerExcludingReimbursements	53120000
	jbgs	Revenuefrom Contractwith Customer Excluding Reimbursements RevenuefromContractwithCustomerExcludingReimbursements	42463000
CY2021Q3	jbgs	Reimbursement Revenuefrom Third Parties ReimbursementRevenuefromThirdParties	11717000
CY2020Q3	jbgs	Reimbursement Revenuefrom Third Parties ReimbursementRevenuefromThirdParties	13708000
	jbgs	Reimbursement Revenuefrom Third Parties ReimbursementRevenuefromThirdParties	37574000
	jbgs	Reimbursement Revenuefrom Third Parties ReimbursementRevenuefromThirdParties	41407000
CY2021Q3	jbgs	Revenuefrom Contractwith Customer Including Reimbursements RevenuefromContractwithCustomerIncludingReimbursements	25842000
CY2020Q3	jbgs	Revenuefrom Contractwith Customer Including Reimbursements RevenuefromContractwithCustomerIncludingReimbursements	26987000
	jbgs	Revenuefrom Contractwith Customer Including Reimbursements RevenuefromContractwithCustomerIncludingReimbursements	90694000
	jbgs	Revenuefrom Contractwith Customer Including Reimbursements RevenuefromContractwithCustomerIncludingReimbursements	83870000
	us-gaap	Net Income Loss NetIncomeLoss	-22811000
	us-gaap	Net Income Loss NetIncomeLoss	-16648000
CY2021Q3	jbgs	Third Party Real Estate Services Expenses ThirdPartyRealEstateServicesExpenses	25542000
CY2020Q3	jbgs	Third Party Real Estate Services Expenses ThirdPartyRealEstateServicesExpenses	28207000
	jbgs	Third Party Real Estate Services Expenses ThirdPartyRealEstateServicesExpenses	80035000
	jbgs	Third Party Real Estate Services Expenses ThirdPartyRealEstateServicesExpenses	86260000
CY2021Q3	jbgs	Third Party Real Estate Services Revenue Less Expenses ThirdPartyRealEstateServicesRevenueLessExpenses	300000
CY2020Q3	jbgs	Third Party Real Estate Services Revenue Less Expenses ThirdPartyRealEstateServicesRevenueLessExpenses	-1220000
	jbgs	Third Party Real Estate Services Revenue Less Expenses ThirdPartyRealEstateServicesRevenueLessExpenses	10659000
	jbgs	Third Party Real Estate Services Revenue Less Expenses ThirdPartyRealEstateServicesRevenueLessExpenses	-2390000
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	893000
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	-22793000
CY2021Q3	us-gaap	Depreciation And Amortization DepreciationAndAmortization	56726000
CY2020Q3	us-gaap	Depreciation And Amortization DepreciationAndAmortization	56481000
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	178130000
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	157586000
CY2021Q3	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	12105000
CY2020Q3	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	11086000
	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	38475000
	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	37478000
CY2021Q3	jbgs	Third Party Real Estate Services ThirdPartyRealEstateServices	25542000
CY2020Q3	jbgs	Third Party Real Estate Services ThirdPartyRealEstateServices	28207000
	jbgs	Third Party Real Estate Services ThirdPartyRealEstateServices	80035000
	jbgs	Third Party Real Estate Services ThirdPartyRealEstateServices	86260000
CY2021Q3	jbgs	Allocated Sharebased Compensation Expense Formation Transaction AllocatedSharebasedCompensationExpenseFormationTransaction	3480000
CY2020Q3	jbgs	Allocated Sharebased Compensation Expense Formation Transaction AllocatedSharebasedCompensationExpenseFormationTransaction	7133000
	jbgs	Allocated Sharebased Compensation Expense Formation Transaction AllocatedSharebasedCompensationExpenseFormationTransaction	12866000
	jbgs	Allocated Sharebased Compensation Expense Formation Transaction AllocatedSharebasedCompensationExpenseFormationTransaction	25432000
CY2021Q3	jbgs	Transactionandothercosts Transactionandothercosts	2951000
CY2020Q3	jbgs	Transactionandothercosts Transactionandothercosts	845000
	jbgs	Transactionandothercosts Transactionandothercosts	8911000
	jbgs	Transactionandothercosts Transactionandothercosts	7526000
CY2021Q3	us-gaap	Interest Expense InterestExpense	17243000
CY2020Q3	us-gaap	Interest Expense InterestExpense	16885000
	us-gaap	Interest Expense InterestExpense	50312000
	us-gaap	Interest Expense InterestExpense	44660000
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-33000
CY2021Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	217000
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-488000
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4527000
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-3721000
CY2021Q3	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	103000
CY2020Q3	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-2212000
	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-2472000
	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	-445000
	us-gaap	Net Income Loss Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossAttributableToNonredeemableNoncontrollingInterest	-1108000
CY2021Q3	jbgs	Revenuefrom Contractwith Customer Including Reimbursements RevenuefromContractwithCustomerIncludingReimbursements	25842000
CY2020Q3	jbgs	Revenuefrom Contractwith Customer Including Reimbursements RevenuefromContractwithCustomerIncludingReimbursements	26987000
	jbgs	Revenuefrom Contractwith Customer Including Reimbursements RevenuefromContractwithCustomerIncludingReimbursements	90694000
	jbgs	Revenuefrom Contractwith Customer Including Reimbursements RevenuefromContractwithCustomerIncludingReimbursements	83870000
CY2021Q3	jbgs	Other Income Excluding Parking Income OtherIncomeExcludingParkingIncome	1568000
CY2020Q3	jbgs	Other Income Excluding Parking Income OtherIncomeExcludingParkingIncome	2292000
CY2020Q3	jbgs	Consolidated Noi ConsolidatedNOI	66830000
	jbgs	Consolidated Noi ConsolidatedNOI	215547000
	jbgs	Consolidated Noi ConsolidatedNOI	205497000
	jbgs	Other Income Excluding Parking Income OtherIncomeExcludingParkingIncome	5658000
	jbgs	Other Income Excluding Parking Income OtherIncomeExcludingParkingIncome	5438000
CY2021Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	20503000
CY2020Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-965000
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	23513000
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-17142000
CY2021Q3	us-gaap	Investment Income Net InvestmentIncomeNet	192000
	us-gaap	Investment Income Net InvestmentIncomeNet	163000
	us-gaap	Investment Income Net InvestmentIncomeNet	1021000
	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	11290000
	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	59477000
CY2021Q3	jbgs	Consolidated Noi ConsolidatedNOI	71155000
CY2021Q3	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	125900000
CY2021Q3	jbgs	Rental Revenue RentalRevenue	129612000
CY2021Q3	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	40198000
CY2021Q3	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	18259000
CY2021Q3	us-gaap	Operating Lease Expense OperatingLeaseExpense	58457000
CY2021Q3	jbgs	Consolidated Noi ConsolidatedNOI	71155000
CY2020Q3	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	118680000
CY2020Q3	jbgs	Rental Revenue RentalRevenue	121756000
CY2020Q3	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	37572000
CY2020Q3	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	17354000
CY2020Q3	us-gaap	Operating Lease Expense OperatingLeaseExpense	54926000
CY2020Q3	jbgs	Consolidated Noi ConsolidatedNOI	66830000
	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	370960000
	jbgs	Rental Revenue RentalRevenue	380603000
	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	109929000
	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	55127000
	us-gaap	Operating Lease Expense OperatingLeaseExpense	165056000
	jbgs	Consolidated Noi ConsolidatedNOI	215547000
	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	354519000
	jbgs	Rental Revenue RentalRevenue	364786000
	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	105867000
	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	53422000
	us-gaap	Operating Lease Expense OperatingLeaseExpense	159289000
	jbgs	Consolidated Noi ConsolidatedNOI	205497000
CY2021Q3	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	6026135000
CY2021Q3	us-gaap	Real Estate Investments Unconsolidated Real Estate And Other Joint Ventures RealEstateInvestmentsUnconsolidatedRealEstateAndOtherJointVentures	486052000
CY2021Q3	us-gaap	Assets Assets	6008978000
CY2020Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	6000631000
CY2020Q4	us-gaap	Real Estate Investments Unconsolidated Real Estate And Other Joint Ventures RealEstateInvestmentsUnconsolidatedRealEstateAndOtherJointVentures	461369000
CY2020Q4	us-gaap	Assets Assets	6079547000
	jbgs	General Liability Insurance Coverage Limit Per Occurrence GeneralLiabilityInsuranceCoverageLimitPerOccurrence	150000000.0
	jbgs	Propertyand Rental Value Insurance Coverage Limit PropertyandRentalValueInsuranceCoverageLimit	1500000000
	jbgs	Terrorist Acts Insurance Coverage Limit Per Occurrence TerroristActsInsuranceCoverageLimitPerOccurrence	2000000000.0
CY2021Q3	us-gaap	Purchase Obligation PurchaseObligation	320300000
	jbgs	Construction Commitment Period ConstructionCommitmentPeriod	P3Y
CY2021Q3	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	18200000
CY2020Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	18200000
	jbgs	Tenant Related Obligations TenantRelatedObligations	76900000

Files In Submission

Name	View Source	Status
0001558370-21-014112-index-headers.html	Edgar Link	pending
0001558370-21-014112-index.html	Edgar Link	pending
0001558370-21-014112.txt	Edgar Link	pending
0001558370-21-014112-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
jbgs-20210930.xsd	Edgar Link	pending
jbgs-20210930x10q.htm	Edgar Link	pending
jbgs-20210930x10q001.jpg	Edgar Link	pending
jbgs-20210930x10q_htm.xml	Edgar Link	completed
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jbgs-20210930xex31d1.htm	Edgar Link	pending
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jbgs-20210930_cal.xml	Edgar Link	unprocessable
jbgs-20210930_def.xml	Edgar Link	unprocessable
jbgs-20210930_lab.xml	Edgar Link	unprocessable
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$JBGS
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2021 Q4 Form 10-Q Financial Statement

#000155837021014112 Filed on November 02, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$JBGS JBG SMITH Properties Stock $jbgs

2021 Q4 Form 10-Q Financial Statement

#000155837021014112 Filed on November 02, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$JBGS
JBG SMITH Properties Stock $jbgs