$BXP
BXP Inc Stock $bxp

$bxp Overview Financials Valuation SEC Filings Company Website

2021 Q1 Form 10-Q Financial Statement

#000165642321000013 Filed on May 07, 2021

Income Statement

Concept	2021 Q1	2020 Q1
Revenue	$713.7M	$752.6M
YoY Change	-5.16%	3.69%
Cost Of Revenue	$262.9M	$273.0M
YoY Change	-3.7%	3371.96%
Gross Profit	$443.9M	$471.7M
YoY Change	-5.87%	5.35%
Gross Profit Margin	62.2%	62.67%
Selling, General & Admin	$45.00M	$36.50M
YoY Change	23.29%	-12.68%
% of Gross Profit	10.14%	7.74%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$176.6M	$171.1M
YoY Change	3.2%	3.95%
% of Gross Profit	39.77%	36.28%
Operating Expenses	$221.6M	$207.6M
YoY Change	6.74%	0.63%
Operating Profit	$222.3M	$264.1M
YoY Change	-15.79%	9.38%
Interest Expense	$107.9M	$101.6M
YoY Change	6.21%	0.58%
% of Operating Profit	48.53%	38.47%
Other Income/Expense, Net
YoY Change
Pretax Income	$128.1M	$577.1M
YoY Change	-77.8%	339.86%
Income Tax
% Of Pretax Income
Net Earnings	$100.6M	$500.1M
YoY Change	-79.89%	396.5%
Net Earnings / Revenue	14.1%	66.46%
Basic Earnings Per Share	$0.59	$3.21
Diluted Earnings Per Share	$0.59	$3.20
COMMON SHARES
Basic Shares Outstanding	155.9M shares	155.0M shares
Diluted Shares Outstanding	156.1M shares	155.3M shares

Balance Sheet

Concept	2021 Q1	2020 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments	$736.4M	$688.8M
YoY Change	6.9%	75.66%
Cash & Equivalents	$697.4M	$660.7M
Short-Term Investments	$39.00M	$28.10M
Other Short-Term Assets	$129.0M	$137.0M
YoY Change	-5.84%	4.58%
Inventory
Prepaid Expenses
Receivables	$51.00M	$89.00M
Other Receivables	$1.145B	$1.060B
Total Short-Term Assets	$2.022B	$1.947B
YoY Change	3.85%	26.59%
LONG-TERM ASSETS
Property, Plant & Equipment	$17.87B	$17.52B
YoY Change	2.03%	2.34%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$1.347B	$1.405B
YoY Change	-4.13%	39.25%
Other Assets	$874.0M	$865.0M
YoY Change	1.04%	17.05%
Total Long-Term Assets	$20.19B	$19.88B
YoY Change	1.55%	4.85%
TOTAL ASSETS
Total Short-Term Assets	$2.022B	$1.947B
Total Long-Term Assets	$20.19B	$19.88B
Total Assets	$22.21B	$21.83B
YoY Change	1.76%	6.48%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$261.0M	$294.0M
YoY Change	-11.22%	-10.64%
Accrued Expenses	$277.0M	$283.0M
YoY Change	-2.12%	-2.08%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$709.0M	$748.0M
YoY Change	-5.21%	-4.47%
LONG-TERM LIABILITIES
Long-Term Debt	$12.78B	$12.29B
YoY Change	3.97%	9.92%
Other Long-Term Liabilities	$608.0M	$373.0M
YoY Change	63.0%	0.81%
Total Long-Term Liabilities	$13.38B	$12.66B
YoY Change	5.71%	9.63%
TOTAL LIABILITIES
Total Short-Term Liabilities	$709.0M	$748.0M
Total Long-Term Liabilities	$13.38B	$12.66B
Total Liabilities	$14.08B	$13.40B
YoY Change	5.09%	8.69%
SHAREHOLDERS EQUITY
Retained Earnings	-$571.0M	-$416.7M
YoY Change	37.01%	-42.76%
Common Stock	$1.561M	$1.553M
YoY Change	0.52%	0.52%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$2.722M	$2.722M
YoY Change	0.0%	0.0%
Treasury Stock Shares	78.90K shares	78.90K shares
Shareholders Equity	$5.776B	$6.048B
YoY Change
Total Liabilities & Shareholders Equity	$22.21B	$21.83B
YoY Change	1.76%	6.48%

Cashflow Statement

Concept	2021 Q1	2020 Q1
OPERATING ACTIVITIES
Net Income	$100.6M	$500.1M
YoY Change	-79.89%	396.5%
Depreciation, Depletion And Amortization	$176.6M	$171.1M
YoY Change	3.2%	3.95%
Cash From Operating Activities	$152.1M	$175.2M
YoY Change	-13.2%	-15.46%
INVESTING ACTIVITIES
Capital Expenditures	-$245.4M	-$246.5M
YoY Change	-0.45%	14.28%
Acquisitions
YoY Change
Other Investing Activities	$3.100M	$172.7M
YoY Change	-98.2%	-2286.08%
Cash From Investing Activities	-$242.3M	-$73.79M
YoY Change	228.31%	-66.99%
FINANCING ACTIVITIES
Cash Dividend Paid	$171.6M	$172.0M
YoY Change	-0.23%	3.37%
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$679.9M	$65.29M
YoY Change	-1141.44%	-134.25%
NET CHANGE
Cash From Operating Activities	$152.1M	$175.2M
Cash From Investing Activities	-$242.3M	-$73.79M
Cash From Financing Activities	-$679.9M	$65.29M
Net Change In Cash	-$770.1M	$166.7M
YoY Change	-562.02%	-180.57%
FREE CASH FLOW
Cash From Operating Activities	$152.1M	$175.2M
Capital Expenditures	-$245.4M	-$246.5M
Free Cash Flow	$397.5M	$421.7M
YoY Change	-5.75%	-0.29%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2021Q1	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2021Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021Q1	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q1
CY2021Q1	dei	Amendment Flag AmendmentFlag	false
CY2021Q2	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	156074252	shares
CY2021Q1	dei	Document Type DocumentType	10-Q
CY2021Q1	dei	Document Quarterly Report DocumentQuarterlyReport	true
CY2021Q1	dei	Document Period End Date DocumentPeriodEndDate	2021-03-31
CY2021Q1	dei	Document Transition Report DocumentTransitionReport	false
CY2021Q1	dei	Entity File Number EntityFileNumber	1-13087
CY2021Q1	dei	Entity Registrant Name EntityRegistrantName	BOSTON PROPERTIES, INC.
CY2021Q1	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2021Q1	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	04-2473675
CY2021Q1	dei	Entity Address Address Line1 EntityAddressAddressLine1	Prudential Center, 800 Boylston Street, Suite 1900
CY2021Q1	dei	Entity Address City Or Town EntityAddressCityOrTown	Boston
CY2021Q1	dei	Entity Address State Or Province EntityAddressStateOrProvince	MA
CY2021Q1	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	02199-8103
CY2021Q1	dei	City Area Code CityAreaCode	617
CY2021Q1	dei	Local Phone Number LocalPhoneNumber	236-3300
CY2021Q1	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2021Q1	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021Q1	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2021Q1	dei	Entity Small Business EntitySmallBusiness	false
CY2021Q1	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2021Q1	dei	Entity Shell Company EntityShellCompany	false
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CY2020Q1	us-gaap	Profit Loss ProfitLoss	577146000	USD
CY2021Q1	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	3740000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-9720000	USD
CY2021Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-1676000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-1666000	USD
CY2021Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	5416000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-8054000	USD
CY2021Q1	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	133563000	USD
CY2020Q1	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	569092000	USD
CY2021Q1	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	27551000	USD
CY2020Q1	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	77025000	USD
CY2021Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	665000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	-689000	USD
CY2021Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	105347000	USD
CY2020Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	492756000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	8339612000	USD
CY2021Q1	us-gaap	Stock Issued During Period Value Conversion Of Units StockIssuedDuringPeriodValueConversionOfUnits	0	USD
CY2021Q1	bxp	Equity Profit Loss EquityProfitLoss	-128147000	USD
CY2021Q1	us-gaap	Dividends Dividends	172800000	USD
CY2021Q1	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	484000	USD
CY2021Q1	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	38467000	USD
CY2021Q1	us-gaap	Preferred Stock Redemption Amount PreferredStockRedemptionAmount	193623000	USD
CY2021Q1	us-gaap	Preferred Stock Redemption Premium PreferredStockRedemptionPremium	6412000	USD
CY2021Q1	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	281000	USD
CY2021Q1	us-gaap	Noncontrolling Interest In Net Income Loss Joint Venture Partners Nonredeemable NoncontrollingInterestInNetIncomeLossJointVenturePartnersNonredeemable	18225000	USD
CY2021Q1	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	3740000	USD
CY2021Q1	us-gaap	Other Comprehensive Income Other Net Of Tax OtherComprehensiveIncomeOtherNetOfTax	1676000	USD
CY2021Q1	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	0	USD
CY2021Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	8121347000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	8014236000	USD
CY2020Q1	us-gaap	Stock Issued During Period Value Conversion Of Units StockIssuedDuringPeriodValueConversionOfUnits	0	USD
CY2020Q1	bxp	Equity Profit Loss EquityProfitLoss	-577146000	USD
CY2020Q1	us-gaap	Dividends Dividends	172277000	USD
CY2020Q1	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	325000	USD
CY2020Q1	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	23060000	USD
CY2020Q1	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	3876000	USD
CY2020Q1	us-gaap	Noncontrolling Interest In Net Income Loss Joint Venture Partners Nonredeemable NoncontrollingInterestInNetIncomeLossJointVenturePartnersNonredeemable	15750000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-9720000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Other Net Of Tax OtherComprehensiveIncomeOtherNetOfTax	1666000	USD
CY2020Q1	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	0	USD
CY2020Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	8420883000	USD
CY2021Q1	us-gaap	Profit Loss ProfitLoss	128147000	USD
CY2020Q1	us-gaap	Profit Loss ProfitLoss	577146000	USD
CY2021Q1	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	176565000	USD
CY2020Q1	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	171094000	USD
CY2021Q1	bxp	Amortizationofrightofuseassetoperatingleases Amortizationofrightofuseassetoperatingleases	2263000	USD
CY2020Q1	bxp	Amortizationofrightofuseassetoperatingleases Amortizationofrightofuseassetoperatingleases	583000	USD
CY2021Q1	us-gaap	Share Based Compensation ShareBasedCompensation	20090000	USD
CY2020Q1	us-gaap	Share Based Compensation ShareBasedCompensation	17525000	USD
CY2021Q1	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	5225000	USD
CY2020Q1	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-369000	USD
CY2021Q1	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	3972000	USD
CY2020Q1	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	5917000	USD
CY2021Q1	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	1659000	USD
CY2020Q1	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	-5445000	USD
CY2021Q1	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-128000	USD
CY2020Q1	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	0	USD
CY2021Q1	us-gaap	Paid In Kind Interest PaidInKindInterest	5984000	USD
CY2020Q1	us-gaap	Paid In Kind Interest PaidInKindInterest	5646000	USD
CY2021Q1	us-gaap	Accretion Expense AccretionExpense	-6290000	USD
CY2020Q1	us-gaap	Accretion Expense AccretionExpense	0	USD
CY2021Q1	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-898000	USD
CY2020Q1	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2021Q1	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	0	USD
CY2020Q1	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	410165000	USD
CY2021Q1	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-26020000	USD
CY2020Q1	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-17784000	USD
CY2021Q1	us-gaap	Increase Decrease In Finance Receivables IncreaseDecreaseInFinanceReceivables	140000	USD
CY2020Q1	us-gaap	Increase Decrease In Finance Receivables IncreaseDecreaseInFinanceReceivables	128000	USD
CY2021Q1	us-gaap	Straight Line Rent StraightLineRent	9413000	USD
CY2020Q1	us-gaap	Straight Line Rent StraightLineRent	27285000	USD
CY2021Q1	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	96351000	USD
CY2020Q1	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	93819000	USD
CY2021Q1	us-gaap	Operating Lease Payments OperatingLeasePayments	1330000	USD
CY2020Q1	us-gaap	Operating Lease Payments OperatingLeasePayments	-393000	USD
CY2021Q1	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-21578000	USD
CY2020Q1	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-48591000	USD
CY2021Q1	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-28970000	USD
CY2020Q1	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-7644000	USD
CY2021Q1	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-24177000	USD
CY2020Q1	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-21296000	USD
CY2021Q1	us-gaap	Lease Cost LeaseCost	-16615000	USD
CY2020Q1	us-gaap	Lease Cost LeaseCost	-17777000	USD
CY2021Q1	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	23916000	USD
CY2020Q1	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	-401949000	USD
CY2021Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	152063000	USD
CY2020Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	175197000	USD
CY2021Q1	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	119496000	USD
CY2020Q1	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	143160000	USD
CY2021Q1	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	32717000	USD
CY2020Q1	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	39154000	USD
CY2021Q1	us-gaap	Payments For Tenant Improvements PaymentsForTenantImprovements	93201000	USD
CY2020Q1	us-gaap	Payments For Tenant Improvements PaymentsForTenantImprovements	64172000	USD
CY2021Q1	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	0	USD
CY2020Q1	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	259489000	USD
CY2021Q1	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	16684000	USD
CY2020Q1	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	89997000	USD
CY2021Q1	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	122000	USD
CY2020Q1	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	0	USD
CY2021Q1	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	17589000	USD
CY2020Q1	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	0	USD
CY2021Q1	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	-2114000	USD
CY2020Q1	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	-3201000	USD
CY2021Q1	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-242273000	USD
CY2020Q1	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-73793000	USD
CY2021Q1	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	5374000	USD
CY2020Q1	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	4212000	USD
CY2021Q1	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	846345000	USD
CY2020Q1	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	0	USD
CY2021Q1	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	843710000	USD
CY2020Q1	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	0	USD
CY2021Q1	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	0	USD
CY2020Q1	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	265000000	USD
CY2021Q1	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	0	USD
CY2020Q1	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	15000000	USD
CY2021Q1	us-gaap	Proceeds From Other Debt ProceedsFromOtherDebt	500000000	USD
CY2020Q1	us-gaap	Proceeds From Other Debt ProceedsFromOtherDebt	0	USD
CY2021Q1	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	7145000	USD
CY2020Q1	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	11000	USD
CY2021Q1	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	185000	USD
CY2020Q1	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	0	USD
CY2021Q1	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	19643000	USD
CY2020Q1	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	3349000	USD
CY2021Q1	us-gaap	Payments Of Dividends PaymentsOfDividends	171566000	USD
CY2020Q1	us-gaap	Payments Of Dividends PaymentsOfDividends	171964000	USD
CY2021Q1	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	281000	USD
CY2020Q1	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	3876000	USD
CY2021Q1	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	18225000	USD
CY2020Q1	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	15750000	USD
CY2021Q1	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-679936000	USD
CY2020Q1	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	65288000	USD
CY2021Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-770146000	USD
CY2020Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	166692000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1719329000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	691886000	USD
CY2021Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	949183000	USD
CY2020Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	858578000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1668742000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	644950000	USD
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	50587000	USD
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	46936000	USD
CY2021Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	697369000	USD
CY2020Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	660733000	USD
CY2021Q1	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	251814000	USD
CY2020Q1	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	197845000	USD
CY2021Q1	us-gaap	Interest Paid InterestPaid	146781000	USD
CY2020Q1	us-gaap	Interest Paid InterestPaid	114696000	USD
CY2021Q1	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	12032000	USD
CY2020Q1	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	14149000	USD
CY2021Q1	bxp	Writeoffoffullydepreciatedrealestate Writeoffoffullydepreciatedrealestate	25161000	USD
CY2020Q1	bxp	Writeoffoffullydepreciatedrealestate Writeoffoffullydepreciatedrealestate	38782000	USD
CY2021Q1	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	42778000	USD
CY2020Q1	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	27415000	USD
CY2021Q1	bxp	Preferred Stock Redemption Liability PreferredStockRedemptionLiability	200000000	USD
CY2020Q1	bxp	Preferred Stock Redemption Liability PreferredStockRedemptionLiability	0	USD
CY2021Q1	bxp	Accruedrentalincomenetdeconsolidated Accruedrentalincomenetdeconsolidated	0	USD
CY2020Q1	bxp	Accruedrentalincomenetdeconsolidated Accruedrentalincomenetdeconsolidated	4558000	USD
CY2021Q1	bxp	Transfer Of Tenant Lease Costs Real Estate TransferOfTenantLeaseCostsRealEstate	0	USD
CY2020Q1	bxp	Transfer Of Tenant Lease Costs Real Estate TransferOfTenantLeaseCostsRealEstate	-3462000	USD
CY2021Q1	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	0	USD
CY2020Q1	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	111889000	USD
CY2021Q1	bxp	Transfer Of Tenant Improvements Real Estate TransferOfTenantImprovementsRealEstate	0	USD
CY2020Q1	bxp	Transfer Of Tenant Improvements Real Estate TransferOfTenantImprovementsRealEstate	12331000	USD
CY2021Q1	us-gaap	Transfer To Investments TransferToInvestments	0	USD
CY2020Q1	us-gaap	Transfer To Investments TransferToInvestments	347898000	USD
CY2021Q1	bxp	Deferred Distributions From Sale Of Investment In Unconsolidated Joint Venture DeferredDistributionsFromSaleOfInvestmentInUnconsolidatedJointVenture	5808000	USD
CY2020Q1	bxp	Deferred Distributions From Sale Of Investment In Unconsolidated Joint Venture DeferredDistributionsFromSaleOfInvestmentInUnconsolidatedJointVenture	0	USD
CY2021Q1	bxp	Deferred Proceeds From Sale Of Investment In Unconsolidated Joint Venture DeferredProceedsFromSaleOfInvestmentInUnconsolidatedJointVenture	200000	USD
CY2020Q1	bxp	Deferred Proceeds From Sale Of Investment In Unconsolidated Joint Venture DeferredProceedsFromSaleOfInvestmentInUnconsolidatedJointVenture	0	USD
CY2021Q1	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	171003000	USD
CY2020Q1	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	171026000	USD
CY2021Q1	bxp	Conversions Of Noncontrolling Interests To Stockholders Equity ConversionsOfNoncontrollingInterestsToStockholdersEquity	4198000	USD
CY2020Q1	bxp	Conversions Of Noncontrolling Interests To Stockholders Equity ConversionsOfNoncontrollingInterestsToStockholdersEquity	15495000	USD
CY2021Q1	bxp	Issuance Of Restricted Securities To Employees And Directors IssuanceOfRestrictedSecuritiesToEmployeesAndDirectors	41255000	USD
CY2020Q1	bxp	Issuance Of Restricted Securities To Employees And Directors IssuanceOfRestrictedSecuritiesToEmployeesAndDirectors	43104000	USD
CY2021Q1	us-gaap	Limited Liability Company Llc Or Limited Partnership Lp Managing Member Or General Partner Ownership Interest LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest	0.899
CY2020	us-gaap	Limited Liability Company Llc Or Limited Partnership Lp Managing Member Or General Partner Ownership Interest LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest	0.900
CY2021Q1	bxp	Restriction On Redemption Of Op Units From Date Of Issuance In Years RestrictionOnRedemptionOfOpUnitsFromDateOfIssuanceInYears	1	Y
CY2021Q1	bxp	Op Unit Conversion Rate OpUnitConversionRate	1	shares
CY2021Q1	bxp	Common Stock Conversion Rate CommonStockConversionRate	1	shares
CY2021Q1	bxp	Op Unit Conversion Rate OpUnitConversionRate	1	shares
CY2020Q4	bxp	Number Of Series Of Preferred Units Outstanding NumberOfSeriesOfPreferredUnitsOutstanding	1
CY2021Q1	us-gaap	Use Of Estimates UseOfEstimates	The Company bases its estimates on historical experience and on various other assumptions that it considers to be reasonable under the circumstances, including the impact of extraordinary events such as the novel coronavirus (“COVID-19”) pandemic, the results of which form the basis for making significant judgments about the carrying values of assets and liabilities, assessments of future collectability, and other areas of the financial statements that are impacted by the use of estimates. Actual results may differ from these estimates under different assumptions or conditions.
CY2021Q1	bxp	Numberof Vi Es NumberofVIEs	6
CY2021Q1	bxp	Numberof Vi Es Total NumberofVIEsTotal	7
CY2021Q1	bxp	Numberof Vi Es NumberofVIEs	6
CY2021Q1	us-gaap	Land Land	5068843000	USD
CY2020Q4	us-gaap	Land Land	5069206000	USD
CY2021Q1	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	237017000	USD
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	237393000	USD
CY2021Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	144143000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	146406000	USD
CY2021Q1	us-gaap	Land Available For Development LandAvailableForDevelopment	421349000	USD
CY2020Q4	us-gaap	Land Available For Development LandAvailableForDevelopment	450954000	USD
CY2021Q1	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	14004418000	USD
CY2020Q4	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	13777691000	USD
CY2021Q1	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	2816726000	USD
CY2020Q4	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	2752880000	USD
CY2021Q1	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	51549000	USD
CY2020Q4	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	49606000	USD
CY2021Q1	us-gaap	Construction In Progress Gross ConstructionInProgressGross	794039000	USD
CY2020Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	868773000	USD
CY2021Q1	bxp	Real Estate Investment Property At Cost Including Rightof Use Assets RealEstateInvestmentPropertyAtCostIncludingRightofUseAssets	23538084000	USD
CY2020Q4	bxp	Real Estate Investment Property At Cost Including Rightof Use Assets RealEstateInvestmentPropertyAtCostIncludingRightofUseAssets	23352909000	USD
CY2021Q1	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	5665061000	USD
CY2020Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	5534102000	USD
CY2021Q1	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	17873023000	USD
CY2020Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	17818807000	USD
CY2021Q1	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	600000	USD
CY2020Q1	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	1200000	USD
CY2021Q1	us-gaap	Allowance For Doubtful Accounts Receivable Recoveries AllowanceForDoubtfulAccountsReceivableRecoveries	200000	USD
CY2020Q1	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	300000	USD
CY2021Q1	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	575353000	USD
CY2020Q1	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	586957000	USD
CY2021Q1	us-gaap	Operating Lease Variable Lease Income OperatingLeaseVariableLeaseIncome	110464000	USD
CY2020Q1	us-gaap	Operating Lease Variable Lease Income OperatingLeaseVariableLeaseIncome	123154000	USD
CY2021Q1	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	685817000	USD
CY2020Q1	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	710111000	USD
CY2021Q1	bxp	Investments In Affiliates Subsidiaries Associates And Joint Venturesnet InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVenturesnet	1272076000	USD
CY2020Q4	bxp	Investments In Affiliates Subsidiaries Associates And Joint Venturesnet InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVenturesnet	1273919000	USD
CY2021Q1	bxp	Schedule Of Statements Of Operations Of Unconsolidated Joint Ventures Text Bock ScheduleOfStatementsOfOperationsOfUnconsolidatedJointVenturesTextBock	<div style="margin-top:14pt;text-indent:24.75pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The combined summarized statements of operations of the Company’s unconsolidated joint ventures are as follows:</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%"> </span></div><div style="margin-bottom:5pt;margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"/><td style="width:68.929%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:13.081%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:1.408%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:13.082%"/><td style="width:0.1%"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%"> </span></td><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:700;line-height:100%">Three months ended March 31,</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%"> </span></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-bottom:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:700;line-height:100%">2020</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%"> </span></td><td colspan="9" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:700;line-height:100%">(in thousands)</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total revenue (1)</span></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">87,266 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">93,203 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Expenses</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 19pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Operating</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">37,134 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">35,401 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 19pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Transaction costs</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">7 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">— </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 19pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Depreciation and amortization</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">34,103 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">32,035 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total expenses</span></td><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">71,244 </span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">67,436 </span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Other income (expense)</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 19pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Interest expense</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(25,556)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(22,583)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 37pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net income (loss)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(9,534)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">3,184 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr style="height:15pt"><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000000;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:3pt double #000000;padding:0 1pt"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Company’s share of net income (loss)</span></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(3,640)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,252 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Gain on sale of investment (2)</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">10,257 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">— </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Basis differential (3)</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(1,392)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(1,621)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Income (loss) from unconsolidated joint ventures</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">5,225 </span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(369)</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr></table></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">_______________ </span></div><div style="padding-left:27pt;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">(1)</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%;padding-left:7.02pt">Includes straight-line rent adjustments of approximately $1.1 million and $9.7 million for the three months ended March 31, 2021 and 2020, respectively. For the three months ended March 31, 2021, write-offs of accounts receivable and accrued rent balances totaled approximately $0.3 million.</span></div><div style="padding-left:27pt;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">(2)</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%;padding-left:7.02pt">During the three months ended March 31, 2021, the Company completed the sale of its 50% ownership interest in Annapolis Junction NFM LLC. The Company recognized a gain on sale of investment of approximately $10.3 million.</span></div>(3)Includes straight-line rent adjustments of approximately $0.5 million and $0.5 million for the three months ended March 31, 2021 and 2020, respectively. Also includes net above-/below-market rent adjustments of approximately $0.1 million and $0.3 million for the three months ended March 31, 2021 and 2020, respectively.
CY2021Q1	us-gaap	Line Of Credit Facility Covenant Terms LineOfCreditFacilityCovenantTerms	Among other covenants, the 2017 Credit Facility requires that Boston Properties Limited Partnership maintain on an ongoing basis: (1) a leverage ratio not to exceed 60%, however, the leverage ratio may increase to no greater than 65% provided that it is reduced back to 60% within one year, (2) a secured debt leverage ratio not to exceed 55%, (3) a fixed charge coverage ratio of at least 1.40, (4) an unsecured debt leverage ratio not to exceed 60%, however, the unsecured debt leverage ratio may increase to no greater than 65% provided that it is reduced to 60% within one year, (5) an unsecured debt interest coverage ratio of at least 1.75 and (6) limitations on permitted investments.
CY2021Q1	bxp	Letter Of Credit And Performance Obligation LetterOfCreditAndPerformanceObligation	20200000	USD
CY2021Q1	bxp	Insurance Policy Limit InsurancePolicyLimit	1000000000.0	USD
CY2021Q1	bxp	Insurance Policy Limit InsurancePolicyLimit	1000000000.0	USD
CY2021Q1	bxp	Per Occurrence Limit For Nbcr Coverage PerOccurrenceLimitForNbcrCoverage	1000000000.0	USD
CY2021Q1	bxp	Program Trigger Value ProgramTriggerValue	200000000	USD
CY2021Q1	bxp	Program Trigger Coinsurance ProgramTriggerCoinsurance	0.20
CY2021Q1	bxp	Programtriggerdeductible Programtriggerdeductible	0.20
CY2021Q1	bxp	Earthquake Deductible Insurance Percentage Of Value Of The Affected Property San Franciscoand Los Angeles EarthquakeDeductibleInsurancePercentageOfValueOfTheAffectedPropertySanFranciscoandLosAngeles	0.03
CY2021Q1	bxp	Per Occurrence Limit Of Earth Quake Insurance San Franciscoand Los Angeles PerOccurrenceLimitOfEarthQuakeInsuranceSanFranciscoandLosAngeles	240000000	USD
CY2021Q1	bxp	Annual Aggregate Limit Of Earth Quake Insurance San Franciscoand Los Angeles AnnualAggregateLimitOfEarthQuakeInsuranceSanFranciscoandLosAngeles	240000000	USD
CY2021Q1	bxp	Amount Of Earthquake Insurance Provided By Ixpllc As Direct Insurer San Franciscoand Los Angeles AmountOfEarthquakeInsuranceProvidedByIXPLLCAsDirectInsurerSanFranciscoandLosAngeles	20000000	USD
CY2020Q4	us-gaap	Minority Interest In Limited Partnerships MinorityInterestInLimitedPartnerships	1700000000	USD
CY2021Q1	us-gaap	Minority Interest In Limited Partnerships MinorityInterestInLimitedPartnerships	1700000000	USD
CY2020Q1	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	300000	USD
CY2021Q1	bxp	Rental Revenue Class Office RentalRevenueClassOffice	693580000	USD
CY2021Q1	bxp	Rental Revenue Residential RentalRevenueResidential	9175000	USD
CY2021Q1	bxp	Rental Revenue Total RentalRevenueTotal	703387000	USD
CY2021Q1	bxp	Percentage Of Total Revenue PercentageOfTotalRevenue	1.0000
CY2021Q1	bxp	Rental Expenses Class Office RentalExpensesClassOffice	251262000	USD
CY2021Q1	bxp	Rental Expenses Residential RentalExpensesResidential	6127000	USD
CY2021Q1	bxp	Rental Expenses Operating Expenses Total RentalExpensesOperatingExpensesTotal	259440000	USD
CY2021Q1	bxp	Percentage Of Total Rental Expenses PercentageOfTotalRentalExpenses	1.0000
CY2021Q1	us-gaap	Gross Profit GrossProfit	443947000	USD
CY2021Q1	bxp	Percentage Of Total Net Operating Income PercentageOfTotalNetOperatingIncome	1.0000
CY2021Q1	bxp	Percentageof Companys Shareof Net Operating Income PercentageofCompanysShareofNetOperatingIncome	1.0000
CY2021Q1	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	156074200	shares
CY2021Q1	us-gaap	General Partners Capital Account Units Outstanding GeneralPartnersCapitalAccountUnitsOutstanding	1736531	shares
CY2021Q1	us-gaap	Limited Partners Capital Account Units Outstanding LimitedPartnersCapitalAccountUnitsOutstanding	154337669	shares
CY2021Q1	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	206377	shares
CY2021Q1	us-gaap	Conversion Of Stock Shares Issued1 ConversionOfStockSharesIssued1	118290	shares
CY2021Q1	us-gaap	Dividends Payable Amount Per Share DividendsPayableAmountPerShare	0.98
CY2021Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.98
CY2020Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.98
CY2020Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.98
CY2021Q1	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	600000	USD
CY2021Q1	us-gaap	Allowance For Doubtful Accounts Receivable Recoveries AllowanceForDoubtfulAccountsReceivableRecoveries	200000	USD
CY2020Q1	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	1200000	USD
CY2020Q1	bxp	Rental Revenue Residential RentalRevenueResidential	9956000	USD
CY2020Q1	bxp	Rental Revenue Total RentalRevenueTotal	741440000	USD
CY2020Q1	bxp	Percentage Of Total Revenue PercentageOfTotalRevenue	1.0000
CY2020Q1	bxp	Rental Revenue Class Office RentalRevenueClassOffice	724659000	USD
CY2020Q1	us-gaap	Dilutive Securities DilutiveSecurities	0	USD
CY2021Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	156099000	shares
CY2021Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.59
CY2020Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	497496000	USD
CY2020Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	155011000	shares
CY2020Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.21
CY2020Q1	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	1011000	USD
CY2020Q1	bxp	Allocationofundistributedearningstoparticipatingsecuritiesinshares Allocationofundistributedearningstoparticipatingsecuritiesinshares	0	shares
CY2020Q1	bxp	Allocationofundistributedearningstoparticipatingsecuritiespershares Allocationofundistributedearningstoparticipatingsecuritiespershares	-0.01
CY2020Q1	bxp	Net Income Loss Available To Common Stockholders After Allocationof Undistributed Earningsto Participating Securities Basic NetIncomeLossAvailableToCommonStockholdersAfterAllocationofUndistributedEarningstoParticipatingSecuritiesBasic	496485000	USD
CY2020Q1	bxp	Weighted Average Number Of Shares Outstanding After Allocationof Undistributed Earningsto Participating Securities Basicinshares WeightedAverageNumberOfSharesOutstandingAfterAllocationofUndistributedEarningstoParticipatingSecuritiesBasicinshares	155011000	shares
CY2020Q1	bxp	Earnings Per Share After Allccationof Undistributed Earningsto Particiapting Securities Basicdollarspershare EarningsPerShareAfterAllccationofUndistributedEarningstoParticiaptingSecuritiesBasicdollarspershare	3.20
CY2020Q1	bxp	Rental Expenses Class Office RentalExpensesClassOffice	258902000	USD
CY2020Q1	bxp	Rental Expenses Residential RentalExpensesResidential	4064000	USD
CY2020Q1	bxp	Rental Expenses Operating Expenses Total RentalExpensesOperatingExpensesTotal	269787000	USD
CY2020Q1	bxp	Percentage Of Total Rental Expenses PercentageOfTotalRentalExpenses	1.0000
CY2020Q1	us-gaap	Gross Profit GrossProfit	471653000	USD
CY2020Q1	bxp	Percentage Of Total Net Operating Income PercentageOfTotalNetOperatingIncome	1.0000
CY2020Q1	bxp	Percentageof Companys Shareof Net Operating Income PercentageofCompanysShareofNetOperatingIncome	1.0000
CY2021Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	91624000	USD
CY2021Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	155928000	shares
CY2021Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.59
CY2021Q1	us-gaap	Dilutive Securities DilutiveSecurities	0	USD
CY2021Q1	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	171000	shares
CY2021Q1	bxp	Weighted Average Number Diluted Shares Outstanding Adjustmentpershare WeightedAverageNumberDilutedSharesOutstandingAdjustmentpershare	0
CY2021Q1	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	91624000	USD
CY2020Q1	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	247000	shares
CY2020Q1	bxp	Weighted Average Number Diluted Shares Outstanding Adjustmentpershare WeightedAverageNumberDilutedSharesOutstandingAdjustmentpershare	0
CY2020Q1	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	496485000	USD
CY2020Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	155258000	shares
CY2020Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.20
CY2021Q1	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	19800000	USD
CY2020Q1	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	17200000	USD

Files In Submission

Name	View Source	Status
0001656423-21-000013-index-headers.html	Edgar Link	pending
0001656423-21-000013-index.html	Edgar Link	pending
0001656423-21-000013.txt	Edgar Link	pending
0001656423-21-000013-xbrl.zip	Edgar Link	pending
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bxp-20210331_pre.xml	Edgar Link	unprocessable
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$BXP
BXP Inc Stock $bxp

2021 Q1 Form 10-Q Financial Statement

#000165642321000013 Filed on May 07, 2021

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$BXP BXP Inc Stock $bxp

2021 Q1 Form 10-Q Financial Statement

#000165642321000013 Filed on May 07, 2021

Income Statement

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Files In Submission

$BXP
BXP Inc Stock $bxp