$SLG
SL Green Realty Corp Stock $slg

$slg Overview Financials Valuation SEC Filings Company Website

2024 Q2 Form 10-Q Financial Statement

#000104097124000018 Filed on May 06, 2024

Income Statement

Concept	2024 Q2	2024 Q1
Revenue	$222.8M	$187.9M
YoY Change	0.79%	-15.96%
Cost Of Revenue	$109.8M	$102.2M
YoY Change	17.44%	2.44%
Gross Profit	$113.0M	$85.70M
YoY Change	-11.41%	-30.79%
Gross Profit Margin	50.72%	45.61%
Selling, General & Admin	$20.00M	$21.30M
YoY Change	-13.07%	-8.58%
% of Gross Profit	17.7%	24.85%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$53.92M	$50.12M
YoY Change	-24.3%	-37.79%
% of Gross Profit	47.71%	58.49%
Operating Expenses	$20.00M	$21.30M
YoY Change	-78.28%	-8.58%
Operating Profit	$93.02M	$64.40M
YoY Change	162.16%	-35.94%
Interest Expense	$49.50M	$48.87M
YoY Change	-160.28%	-24.63%
% of Operating Profit	53.22%	75.88%
Other Income/Expense, Net	-$13.72M	-$52.12M
YoY Change	-95.51%
Pretax Income	$1.959M	$18.39M
YoY Change	-100.52%	-147.94%
Income Tax	$900.0K	$700.0K
% Of Pretax Income	45.94%	3.81%
Net Earnings	$1.577M	$16.88M
YoY Change	-100.44%	-146.9%
Net Earnings / Revenue	0.71%	8.98%
Basic Earnings Per Share	-$0.04	$0.20
Diluted Earnings Per Share	-$0.04	$0.20
COMMON SHARES
Basic Shares Outstanding	64.81M shares	64.80M shares
Diluted Shares Outstanding	68.74M shares	70.10M shares

Balance Sheet

Concept	2024 Q2	2024 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments	$216.1M	$206.7M
YoY Change	12.56%	22.16%
Cash & Equivalents	$199.5M	$196.0M
Short-Term Investments	$16.59M	$10.67M
Other Short-Term Assets
YoY Change
Inventory	$21.62M	$21.59M
Prepaid Expenses
Receivables	$315.9M	$318.9M
Other Receivables	$0.00	$0.00
Total Short-Term Assets	$537.0M	$536.5M
YoY Change	3.63%	9.8%
LONG-TERM ASSETS
Property, Plant & Equipment	$5.078B	$5.114B
YoY Change	2.23%	-28.4%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$2.895B	$2.985B
YoY Change	-25.28%	-5.69%
Other Assets	$223.5M	$231.8M
YoY Change	-3.44%	-26.64%
Total Long-Term Assets	$9.012B	$9.228B
YoY Change	-5.37%	-22.15%
TOTAL ASSETS
Total Short-Term Assets	$537.0M	$536.5M
Total Long-Term Assets	$9.012B	$9.228B
Total Assets	$9.549B	$9.764B
YoY Change	-4.91%	-20.89%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$121.1M	$101.5M
YoY Change	3.73%	-32.73%
Accrued Expenses	$839.5M	$846.8M
YoY Change	-7.34%	-6.84%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$1.039B	$1.025B
YoY Change	-5.09%	-9.49%
LONG-TERM LIABILITIES
Long-Term Debt	$3.732B	$3.891B
YoY Change	-4.55%	-31.51%
Other Long-Term Liabilities	$587.9M	$605.7M
YoY Change	28.82%	10.57%
Total Long-Term Liabilities	$4.320B	$4.497B
YoY Change	-1.07%	-27.81%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.039B	$1.025B
Total Long-Term Liabilities	$4.320B	$4.497B
Total Liabilities	$5.358B	$5.522B
YoY Change	-7.33%	-24.99%
SHAREHOLDERS EQUITY
Retained Earnings	-$279.8M	-$229.6M
YoY Change	-306.44%	-141.82%
Common Stock	$660.0K	$660.0K
YoY Change	0.61%	0.61%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$3.691B	$3.736B
YoY Change
Total Liabilities & Shareholders Equity	$9.549B	$9.764B
YoY Change	-4.91%	-20.89%

Cashflow Statement

Concept	2024 Q2	2024 Q1
OPERATING ACTIVITIES
Net Income	$1.577M	$16.88M
YoY Change	-100.44%	-146.9%
Depreciation, Depletion And Amortization	$53.92M	$50.12M
YoY Change	-24.3%	-37.79%
Cash From Operating Activities	$79.37M	-$24.68M
YoY Change	28.76%	-158.27%
INVESTING ACTIVITIES
Capital Expenditures	$52.75M	$55.32M
YoY Change	-27.02%	-10.66%
Acquisitions
YoY Change
Other Investing Activities	$178.3M	$51.60M
YoY Change	78.67%	-1259.36%
Cash From Investing Activities	$125.5M	-$3.713M
YoY Change	356.4%	-94.41%
FINANCING ACTIVITIES
Cash Dividend Paid		$54.14M
YoY Change		-5.63%
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-207.6M	$11.37M
YoY Change	53.36%	-510.06%
NET CHANGE
Cash From Operating Activities	79.37M	-$24.68M
Cash From Investing Activities	125.5M	-$3.713M
Cash From Financing Activities	-207.6M	$11.37M
Net Change In Cash	-2.685M	-$17.02M
YoY Change	-94.19%	-36.46%
FREE CASH FLOW
Cash From Operating Activities	$79.37M	-$24.68M
Capital Expenditures	$52.75M	$55.32M
Free Cash Flow	$26.63M	-$79.99M
YoY Change	-350.51%	308.77%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2024Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	953236000	usd
CY2023Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	2035311000	usd
CY2023Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	5020789000	usd
CY2024Q1	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	5114449000	usd
CY2024Q1	us-gaap	Other Income OtherIncome	13371000	usd
CY2023Q1	us-gaap	Other Income OtherIncome	21894000	usd
CY2024Q1	us-gaap	Revenues Revenues	187882000	usd
CY2023Q1	us-gaap	Revenues Revenues	245764000	usd
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	953236000	usd
CY2024Q1	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	7192652000	usd
CY2023Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	7056100000	usd
CY2024Q1	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	2078203000	usd
CY2024Q1	us-gaap	Assets Of Disposal Group Including Discontinued Operation AssetsOfDisposalGroupIncludingDiscontinuedOperation	21586000	usd
CY2024Q1	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	122461000	usd
CY2024Q1	us-gaap	Marketable Securities MarketableSecurities	10673000	usd
CY2023Q4	us-gaap	Marketable Securities MarketableSecurities	9591000	usd
CY2024Q1	us-gaap	Accounts And Notes Receivable Net AccountsAndNotesReceivableNet	38659000	usd
CY2023Q4	us-gaap	Other Receivables OtherReceivables	12168000	usd
CY2024Q1	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	267969000	usd
CY2024Q1	slg	Discount Of Structured Finance Investments DiscountOfStructuredFinanceInvestments	1623000	usd
CY2023Q4	slg	Discount Of Structured Finance Investments DiscountOfStructuredFinanceInvestments	1630000	usd
CY2024Q1	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	13520000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	13520000	usd
CY2024Q1	us-gaap	Mortgage Loans On Real Estate Commercial And Consumer Net MortgageLoansOnRealEstateCommercialAndConsumerNet	352347000	usd
CY2023Q4	us-gaap	Mortgage Loans On Real Estate Commercial And Consumer Net MortgageLoansOnRealEstateCommercialAndConsumerNet	346745000	usd
CY2023Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation AssetsOfDisposalGroupIncludingDiscontinuedOperation	0	usd
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	221823000	usd
CY2023Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	113696000	usd
CY2024Q1	us-gaap	Equity Method Investments EquityMethodInvestments	2984786000	usd
CY2023Q4	us-gaap	Equity Method Investments EquityMethodInvestments	2983313000	usd
CY2024Q1	us-gaap	Deferred Costs Current And Noncurrent DeferredCostsCurrentAndNoncurrent	109296000	usd
CY2023Q4	us-gaap	Deferred Costs Current And Noncurrent DeferredCostsCurrentAndNoncurrent	111463000	usd
CY2024Q1	us-gaap	Other Assets OtherAssets	533802000	usd
CY2023Q4	us-gaap	Other Assets OtherAssets	413670000	usd
CY2024Q1	us-gaap	Assets Assets	9764292000	usd
CY2023Q4	us-gaap	Assets Assets	9531181000	usd
CY2024Q1	us-gaap	Secured Debt SecuredDebt	1695163000	usd
CY2023Q4	us-gaap	Secured Debt SecuredDebt	1491319000	usd
CY2024Q1	us-gaap	Line Of Credit LineOfCredit	645138000	usd
CY2023Q4	us-gaap	Line Of Credit LineOfCredit	554752000	usd
CY2024Q1	us-gaap	Senior Notes SeniorNotes	1245382000	usd
CY2023Q4	us-gaap	Senior Notes SeniorNotes	1244881000	usd
CY2024Q1	us-gaap	Unsecured Debt UnsecuredDebt	99820000	usd
CY2023Q4	us-gaap	Unsecured Debt UnsecuredDebt	99795000	usd
CY2024Q1	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	23217000	usd
CY2023Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	17930000	usd
CY2024Q1	us-gaap	Other Liabilities OtherLiabilities	437302000	usd
CY2023Q4	us-gaap	Other Liabilities OtherLiabilities	471401000	usd
CY2024Q1	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	101495000	usd
CY2023Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	153164000	usd
CY2024Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	157756000	usd
CY2023Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	134053000	usd
CY2024Q1	us-gaap	Finance Lease Liability FinanceLeaseLiability	105859000	usd
CY2023Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	105531000	usd
CY2024Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	823594000	usd
CY2023Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	827692000	usd
CY2024Q1	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	20135000	usd
CY2023Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	20280000	usd
CY2024Q1	us-gaap	Security Deposit Liability SecurityDepositLiability	56398000	usd
CY2023Q4	us-gaap	Security Deposit Liability SecurityDepositLiability	49906000	usd
CY2024Q1	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation	10649000	usd
CY2023Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation	0	usd
CY2024Q1	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	100000000	usd
CY2023Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	100000000	usd
CY2024Q1	us-gaap	Liabilities Liabilities	5521908000	usd
CY2023Q4	us-gaap	Liabilities Liabilities	5270704000	usd
CY2024Q1	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2023Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2024Q1	us-gaap	Redeemable Noncontrolling Interest Equity Common Carrying Amount RedeemableNoncontrollingInterestEquityCommonCarryingAmount	272235000	usd
CY2023Q4	us-gaap	Redeemable Noncontrolling Interest Equity Common Carrying Amount RedeemableNoncontrollingInterestEquityCommonCarryingAmount	238051000	usd
CY2024Q1	us-gaap	Redeemable Noncontrolling Interest Equity Preferred Carrying Amount RedeemableNoncontrollingInterestEquityPreferredCarryingAmount	166501000	usd
CY2023Q4	us-gaap	Redeemable Noncontrolling Interest Equity Preferred Carrying Amount RedeemableNoncontrollingInterestEquityPreferredCarryingAmount	166501000	usd
CY2024Q1	us-gaap	Preferred Stock Value PreferredStockValue	221932000	usd
CY2023Q4	us-gaap	Preferred Stock Value PreferredStockValue	221932000	usd
CY2023Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2024Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2023Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	160000000	shares
CY2024Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	160000000	shares
CY2024Q1	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	65866000	shares
CY2024Q1	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	65866000	shares
CY2023Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	65786000	shares
CY2023Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	65786000	shares
CY2024Q1	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	1060000	shares
CY2023Q4	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	1060000	shares
CY2024Q1	us-gaap	Common Stock Value CommonStockValue	660000	usd
CY2023Q4	us-gaap	Common Stock Value CommonStockValue	660000	usd
CY2024Q1	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	3831130000	usd
CY2023Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	3826452000	usd
CY2024Q1	us-gaap	Treasury Stock Common Value TreasuryStockCommonValue	128655000	usd
CY2023Q4	us-gaap	Treasury Stock Common Value TreasuryStockCommonValue	128655000	usd
CY2024Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	40151000	usd
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	17477000	usd
CY2024Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-229607000	usd
CY2023Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-151551000	usd
CY2024Q1	us-gaap	Stockholders Equity StockholdersEquity	3735611000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	3786315000	usd
CY2024Q1	us-gaap	Nonredeemable Noncontrolling Interest NonredeemableNoncontrollingInterest	68037000	usd
CY2023Q4	us-gaap	Nonredeemable Noncontrolling Interest NonredeemableNoncontrollingInterest	69610000	usd
CY2024Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3803648000	usd
CY2023Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3855925000	usd
CY2024Q1	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	9764292000	usd
CY2023Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	9531181000	usd
CY2024Q1	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	141504000	usd
CY2023Q1	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	195042000	usd
CY2024Q1	slg	Segment Operator Revenue SegmentOperatorRevenue	25604000	usd
CY2023Q1	slg	Segment Operator Revenue SegmentOperatorRevenue	19771000	usd
CY2024Q1	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	7403000	usd
CY2023Q1	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	9057000	usd
CY2024Q1	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	43608000	usd
CY2023Q1	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	52064000	usd
CY2024Q1	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	31606000	usd
CY2023Q1	us-gaap	Real Estate Tax Expense RealEstateTaxExpense	41383000	usd
CY2024Q1	us-gaap	Operating Lease Cost OperatingLeaseCost	6405000	usd
CY2023Q1	us-gaap	Operating Lease Cost OperatingLeaseCost	6301000	usd
CY2024Q1	slg	Segment Operator Expense SegmentOperatorExpense	21858000	usd
CY2023Q1	slg	Segment Operator Expense SegmentOperatorExpense	20688000	usd
CY2024Q1	us-gaap	Interest Expense Other InterestExpenseOther	31173000	usd
CY2023Q1	us-gaap	Interest Expense Other InterestExpenseOther	41653000	usd
CY2024Q1	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1539000	usd
CY2023Q1	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	2021000	usd
CY2024Q1	slg	Segment Operator Tax Expenses SegmentOperatorTaxExpenses	-1295000	usd
CY2023Q1	slg	Segment Operator Tax Expenses SegmentOperatorTaxExpenses	1267000	usd
CY2024Q1	us-gaap	Depreciation And Amortization DepreciationAndAmortization	48584000	usd
CY2023Q1	us-gaap	Depreciation And Amortization DepreciationAndAmortization	78782000	usd
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	0	usd
CY2023Q1	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	6890000	usd
CY2024Q1	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	16000	usd
CY2023Q1	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	884000	usd
CY2024Q1	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	21313000	usd
CY2023Q1	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	23285000	usd
CY2024Q1	slg	Total Costs And Expenses Including Nonoperating Income Expense TotalCostsAndExpensesIncludingNonoperatingIncomeExpense	204807000	usd
CY2023Q1	slg	Total Costs And Expenses Including Nonoperating Income Expense TotalCostsAndExpensesIncludingNonoperatingIncomeExpense	275218000	usd
CY2024Q1	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	111160000	usd
CY2023Q1	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-7412000	usd
CY2024Q1	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	26764000	usd
CY2023Q1	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	-79000	usd
CY2024Q1	slg	Gain Loss On Purchase Price Fair Value Adjustment Gross GainLossOnPurchasePriceFairValueAdjustmentGross	-50492000	usd
CY2023Q1	slg	Gain Loss On Purchase Price Fair Value Adjustment Gross GainLossOnPurchasePriceFairValueAdjustmentGross	239000	usd
CY2024Q1	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	0	usd
CY2023Q1	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	-1651000	usd
CY2024Q1	slg	Depreciable Real Estate Reserves Effecton Earnings DepreciableRealEstateReservesEffectonEarnings	-52118000	usd
CY2023Q1	slg	Depreciable Real Estate Reserves Effecton Earnings DepreciableRealEstateReservesEffectonEarnings	0	usd
CY2024Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	18389000	usd
CY2023Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-38357000	usd
CY2024Q1	us-gaap	Profit Loss ProfitLoss	18389000	usd
CY2023Q1	us-gaap	Profit Loss ProfitLoss	-38357000	usd
CY2024Q1	us-gaap	Noncontrolling Interest In Net Income Loss Operating Partnerships Redeemable NoncontrollingInterestInNetIncomeLossOperatingPartnershipsRedeemable	901000	usd
CY2023Q1	us-gaap	Noncontrolling Interest In Net Income Loss Operating Partnerships Redeemable NoncontrollingInterestInNetIncomeLossOperatingPartnershipsRedeemable	-2337000	usd
CY2024Q1	us-gaap	Noncontrolling Interest In Net Income Loss Other Noncontrolling Interests Redeemable NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable	-1294000	usd
CY2023Q1	us-gaap	Noncontrolling Interest In Net Income Loss Other Noncontrolling Interests Redeemable NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable	-1625000	usd
CY2024Q1	us-gaap	Noncontrolling Interest In Net Income Loss Preferred Unit Holders Redeemable NoncontrollingInterestInNetIncomeLossPreferredUnitHoldersRedeemable	1903000	usd
CY2023Q1	us-gaap	Noncontrolling Interest In Net Income Loss Preferred Unit Holders Redeemable NoncontrollingInterestInNetIncomeLossPreferredUnitHoldersRedeemable	1598000	usd
CY2024Q1	us-gaap	Net Income Loss NetIncomeLoss	16879000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	-35993000	usd
CY2024Q1	us-gaap	Dividends Preferred Stock DividendsPreferredStock	3738000	usd
CY2023Q1	us-gaap	Dividends Preferred Stock DividendsPreferredStock	3738000	usd
CY2024Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	13141000	usd
CY2023Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-39731000	usd
CY2024Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.20
CY2023Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.63
CY2024Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.20
CY2023Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.63
CY2024Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	64328000	shares
CY2023Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	64079000	shares
CY2024Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	70095000	shares
CY2023Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	68182000	shares
CY2024Q1	us-gaap	Profit Loss ProfitLoss	18389000	usd
CY2023Q1	us-gaap	Profit Loss ProfitLoss	-38357000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	23214000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-31059000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	1082000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-968000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	24296000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-32027000	usd
CY2024Q1	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	42685000	usd
CY2023Q1	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-70384000	usd
CY2024Q1	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1510000	usd
CY2023Q1	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-2364000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	1622000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	-1851000	usd
CY2024Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	39553000	usd
CY2023Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-66169000	usd
CY2023Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3855925000	usd
CY2024Q1	slg	Profit Loss Less Minority Interest In Net Income Loss Operating Partnerships ProfitLossLessMinorityInterestInNetIncomeLossOperatingPartnerships	15585000	usd
CY2024Q1	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	5674000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	22674000	usd
CY2024Q1	us-gaap	Dividends Preferred Stock DividendsPreferredStock	3738000	usd
CY2024Q1	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	77000	usd
CY2024Q1	slg	Reallocationof Noncontrolling Interest In Operating Partnership Increase Decrease ReallocationofNoncontrollingInterestInOperatingPartnershipIncreaseDecrease	-42841000	usd
CY2024Q1	slg	Deferred Compensation Plan And Stock Award Net DeferredCompensationPlanAndStockAwardNet	4601000	usd
CY2024Q1	slg	Consolidation Of Joint Venture Interest ConsolidationOfJointVentureInterest	6678000	usd
CY2024Q1	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	1283000	usd
CY2024Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.750
CY2024Q1	us-gaap	Dividends Common Stock DividendsCommonStock	48356000	usd
CY2024Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3803648000	usd
CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4646922000	usd
CY2023Q1	slg	Profit Loss Less Minority Interest In Net Income Loss Operating Partnerships ProfitLossLessMinorityInterestInNetIncomeLossOperatingPartnerships	-37618000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-30176000	usd
CY2023Q1	us-gaap	Dividends Preferred Stock DividendsPreferredStock	3738000	usd
CY2023Q1	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	184000	usd
CY2023Q1	slg	Reallocationof Noncontrolling Interest In Operating Partnership Increase Decrease ReallocationofNoncontrollingInterestInOperatingPartnershipIncreaseDecrease	-10147000	usd
CY2023Q1	slg	Deferred Compensation Plan And Stock Award Net DeferredCompensationPlanAndStockAwardNet	7559000	usd
CY2023Q1	slg	Consolidation Of Joint Venture Interest ConsolidationOfJointVentureInterest	8560000	usd
CY2023Q1	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	136000	usd
CY2023Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.812
CY2023Q1	us-gaap	Dividends Common Stock DividendsCommonStock	52236000	usd
CY2023Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4529174000	usd
CY2024Q1	us-gaap	Profit Loss ProfitLoss	18389000	usd
CY2023Q1	us-gaap	Profit Loss ProfitLoss	-38357000	usd
CY2024Q1	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	50123000	usd
CY2023Q1	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	80803000	usd
CY2024Q1	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	111160000	usd
CY2023Q1	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-7412000	usd
CY2024Q1	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	68000	usd
CY2023Q1	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	258000	usd
CY2024Q1	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	26764000	usd
CY2023Q1	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	-79000	usd
CY2024Q1	slg	Purchase Price Fair Value Adjustment Gain Loss PurchasePriceFairValueAdjustmentGainLoss	-50492000	usd
CY2023Q1	slg	Purchase Price Fair Value Adjustment Gain Loss PurchasePriceFairValueAdjustmentGainLoss	239000	usd
CY2024Q1	slg	Depreciable Real Estate Reserves Cash Flow Effect DepreciableRealEstateReservesCashFlowEffect	-52118000	usd
CY2023Q1	slg	Depreciable Real Estate Reserves Cash Flow Effect DepreciableRealEstateReservesCashFlowEffect	0	usd
CY2024Q1	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	0	usd
CY2023Q1	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	-1651000	usd
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	0	usd
CY2023Q1	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	6890000	usd
CY2024Q1	us-gaap	Straight Line Rent StraightLineRent	3721000	usd
CY2023Q1	us-gaap	Straight Line Rent StraightLineRent	7431000	usd
CY2024Q1	slg	Non Cash Lease Expense NonCashLeaseExpense	5003000	usd
CY2023Q1	slg	Non Cash Lease Expense NonCashLeaseExpense	5261000	usd
CY2024Q1	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-11166000	usd
CY2023Q1	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	3271000	usd
CY2024Q1	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	3174000	usd
CY2023Q1	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	969000	usd
CY2024Q1	us-gaap	Increase Decrease In Due From Related Parties Current IncreaseDecreaseInDueFromRelatedPartiesCurrent	-245000	usd
CY2023Q1	us-gaap	Increase Decrease In Due From Related Parties Current IncreaseDecreaseInDueFromRelatedPartiesCurrent	-577000	usd
CY2024Q1	us-gaap	Increase Decrease In Deferred Leasing Fees IncreaseDecreaseInDeferredLeasingFees	3735000	usd
CY2023Q1	us-gaap	Increase Decrease In Deferred Leasing Fees IncreaseDecreaseInDeferredLeasingFees	3911000	usd
CY2024Q1	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	12644000	usd
CY2023Q1	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	11394000	usd
CY2024Q1	slg	Increase Decrease In Accrued Liabilities And Other IncreaseDecreaseInAccruedLiabilitiesAndOther	-50003000	usd
CY2023Q1	slg	Increase Decrease In Accrued Liabilities And Other IncreaseDecreaseInAccruedLiabilitiesAndOther	4656000	usd
CY2024Q1	us-gaap	Increase Decrease In Deferred Liabilities IncreaseDecreaseInDeferredLiabilities	3017000	usd
CY2023Q1	us-gaap	Increase Decrease In Deferred Liabilities IncreaseDecreaseInDeferredLiabilities	2450000	usd
CY2024Q1	us-gaap	Increase Decrease In Operating Lease Liability IncreaseDecreaseInOperatingLeaseLiability	-4097000	usd
CY2023Q1	us-gaap	Increase Decrease In Operating Lease Liability IncreaseDecreaseInOperatingLeaseLiability	-2116000	usd
CY2024Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-24677000	usd
CY2023Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	42349000	usd
CY2024Q1	slg	Payments To Acquire Land Buildings And Improvements PaymentsToAcquireLandBuildingsAndImprovements	55316000	usd
CY2023Q1	slg	Payments To Acquire Land Buildings And Improvements PaymentsToAcquireLandBuildingsAndImprovements	61918000	usd
CY2024Q1	slg	Payments For Proceeds From Acquisition Deposits And Deferred Purchase Price PaymentsForProceedsFromAcquisitionDepositsAndDeferredPurchasePrice	12817000	usd
CY2023Q1	slg	Payments For Proceeds From Acquisition Deposits And Deferred Purchase Price PaymentsForProceedsFromAcquisitionDepositsAndDeferredPurchasePrice	0	usd
CY2024Q1	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	23830000	usd
CY2023Q1	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	22985000	usd
CY2024Q1	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	71545000	usd
CY2023Q1	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	41812000	usd
CY2024Q1	us-gaap	Proceeds From Real Estate And Real Estate Joint Ventures ProceedsFromRealEstateAndRealEstateJointVentures	26420000	usd
CY2023Q1	us-gaap	Proceeds From Real Estate And Real Estate Joint Ventures ProceedsFromRealEstateAndRealEstateJointVentures	0	usd
CY2024Q1	slg	Payments For Proceeds From Other Investments PaymentsForProceedsFromOtherInvestments	2770000	usd
CY2023Q1	slg	Payments For Proceeds From Other Investments PaymentsForProceedsFromOtherInvestments	17700000	usd
CY2024Q1	slg	Origination Of Debt And Preferred Equity Investments OriginationOfDebtAndPreferredEquityInvestments	6945000	usd
CY2023Q1	slg	Origination Of Debt And Preferred Equity Investments OriginationOfDebtAndPreferredEquityInvestments	5578000	usd
CY2024Q1	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-3713000	usd
CY2023Q1	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-66369000	usd
CY2024Q1	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	493000	usd
CY2023Q1	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	0	usd
CY2024Q1	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	1501000	usd
CY2023Q1	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	1473000	usd
CY2024Q1	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	130000000	usd
CY2023Q1	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	143000000	usd
CY2024Q1	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	40000000	usd
CY2023Q1	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	78000000	usd
CY2024Q1	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	77000	usd
CY2023Q1	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	184000	usd
CY2024Q1	us-gaap	Payments For Repurchase Of Other Equity PaymentsForRepurchaseOfOtherEquity	18608000	usd
CY2023Q1	us-gaap	Payments For Repurchase Of Other Equity PaymentsForRepurchaseOfOtherEquity	5220000	usd
CY2024Q1	slg	Distributions To Noncontrolling Interests Other Partnerships DistributionsToNoncontrollingInterestsOtherPartnerships	1283000	usd
CY2023Q1	slg	Distributions To Noncontrolling Interests Other Partnerships DistributionsToNoncontrollingInterestsOtherPartnerships	136000	usd
CY2024Q1	slg	Proceeds From Noncontrolling Interests In Other Partnerships ProceedsFromNoncontrollingInterestsInOtherPartnerships	0	usd
CY2023Q1	slg	Proceeds From Noncontrolling Interests In Other Partnerships ProceedsFromNoncontrollingInterestsInOtherPartnerships	426000	usd
CY2024Q1	slg	Distribution To Noncontrolling Interest Operating Partnership DistributionToNoncontrollingInterestOperatingPartnership	3609000	usd
CY2023Q1	slg	Distribution To Noncontrolling Interest Operating Partnership DistributionToNoncontrollingInterestOperatingPartnership	3822000	usd
CY2024Q1	us-gaap	Payments Of Dividends PaymentsOfDividends	54142000	usd
CY2023Q1	us-gaap	Payments Of Dividends PaymentsOfDividends	57373000	usd
CY2024Q1	slg	Proceeds From Payments Of Financing Costs ProceedsFromPaymentsOfFinancingCosts	60000	usd
CY2023Q1	slg	Proceeds From Payments Of Financing Costs ProceedsFromPaymentsOfFinancingCosts	358000	usd
CY2024Q1	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	11367000	usd
CY2023Q1	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-2772000	usd
CY2024Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-17023000	usd
CY2023Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-26792000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	335519000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	384054000	usd
CY2024Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	318496000	usd
CY2023Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	357262000	usd
CY2024Q1	slg	Operating Partnership Noncontrolling Interest Fair Value Adjustment OperatingPartnershipNoncontrollingInterestFairValueAdjustment	42841000	usd
CY2023Q1	slg	Operating Partnership Noncontrolling Interest Fair Value Adjustment OperatingPartnershipNoncontrollingInterestFairValueAdjustment	10147000	usd
CY2024Q1	slg	Consolidation Of A Subsidiary ConsolidationOfASubsidiary	6678000	usd
CY2023Q1	slg	Consolidation Of A Subsidiary ConsolidationOfASubsidiary	0	usd
CY2024Q1	slg	Consolidation Of Mortgage Loan Payable ConsolidationOfMortgageLoanPayable	205000000	usd
CY2023Q1	slg	Consolidation Of Mortgage Loan Payable ConsolidationOfMortgageLoanPayable	0	usd
CY2024Q1	slg	Acquisition Of Subsidiary Interest From Noncontrolling Interest AcquisitionOfSubsidiaryInterestFromNoncontrollingInterest	5674000	usd
CY2023Q1	slg	Acquisition Of Subsidiary Interest From Noncontrolling Interest AcquisitionOfSubsidiaryInterestFromNoncontrollingInterest	0	usd
CY2024Q1	slg	Contribution To Consolidated Joint Venture Interest ContributionToConsolidatedJointVentureInterest	0	usd
CY2023Q1	slg	Contribution To Consolidated Joint Venture Interest ContributionToConsolidatedJointVentureInterest	8134000	usd
CY2024Q1	slg	Removalof Fully Depreciated Real Estate Assets RemovalofFullyDepreciatedRealEstateAssets	3354000	usd
CY2023Q1	slg	Removalof Fully Depreciated Real Estate Assets RemovalofFullyDepreciatedRealEstateAssets	4247000	usd
CY2024Q1	slg	Share Repurchases Payable ShareRepurchasesPayable	5012000	usd
CY2023Q1	slg	Share Repurchases Payable ShareRepurchasesPayable	0	usd
CY2024Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	196035000	usd
CY2023Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	158937000	usd
CY2024Q1	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	122461000	usd
CY2023Q1	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	198325000	usd
CY2024Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	318496000	usd
CY2023Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	357262000	usd
CY2024Q1	slg	Consolidation Of Joint Venture Interest ConsolidationOfJointVentureInterest	6678000	usd
CY2024Q1	slg	Consolidation Of Mortgage Loan Payable ConsolidationOfMortgageLoanPayable	205000000	usd
CY2023Q1	slg	Consolidation Of Mortgage Loan Payable ConsolidationOfMortgageLoanPayable	0	usd
CY2024Q1	slg	Mortgage Loanson Real Estate Commercialand Consumer Net Including Debt Investments Other MortgageLoansonRealEstateCommercialandConsumerNetIncludingDebtInvestmentsOther	352300000	usd
CY2024Q1	slg	Debt Investments Other DebtInvestmentsOther	4800000	usd
CY2024Q1	slg	Number Of Shares On Redemption Of One Unit Of Partnership Interest NumberOfSharesOnRedemptionOfOneUnitOfPartnershipInterest	1	shares
CY2024Q1	slg	Rental Revenue Increase Decrease Acquired Lease Amortization RentalRevenueIncreaseDecreaseAcquiredLeaseAmortization	100000	usd
CY2023Q1	slg	Rental Revenue Increase Decrease Acquired Lease Amortization RentalRevenueIncreaseDecreaseAcquiredLeaseAmortization	8200000	usd
CY2024Q1	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	273010000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	189680000	usd
CY2024Q1	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	185470000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	184902000	usd
CY2024Q1	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	87540000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	4778000	usd
CY2024Q1	slg	Finite Lived Intangible Liabilities Gross FiniteLivedIntangibleLiabilitiesGross	226034000	usd
CY2023Q4	slg	Finite Lived Intangible Liabilities Gross FiniteLivedIntangibleLiabilitiesGross	205394000	usd
CY2024Q1	slg	Finite Lived Intangible Liabilities Accumulated Amortization FiniteLivedIntangibleLiabilitiesAccumulatedAmortization	202178000	usd
CY2023Q4	slg	Finite Lived Intangible Liabilities Accumulated Amortization FiniteLivedIntangibleLiabilitiesAccumulatedAmortization	202089000	usd
CY2024Q1	slg	Finite Lived Intangible Liabilities Net FiniteLivedIntangibleLiabilitiesNet	23856000	usd
CY2023Q4	slg	Finite Lived Intangible Liabilities Net FiniteLivedIntangibleLiabilitiesNet	3305000	usd
CY2024Q1	us-gaap	Marketable Securities MarketableSecurities	10673000	usd
CY2023Q4	us-gaap	Marketable Securities MarketableSecurities	9591000	usd
CY2024Q1	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	usd
CY2023Q1	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	usd
CY2023Q4	us-gaap	Equity Securities Fv Ni Current And Noncurrent EquitySecuritiesFvNiCurrentAndNoncurrent	0	usd
CY2024Q1	us-gaap	Equity Securities Fv Ni Current And Noncurrent EquitySecuritiesFvNiCurrentAndNoncurrent	0	usd
CY2024Q1	slg	Financing Receivable Number Of Days Past Due For Suspending Income Recognition FinancingReceivableNumberOfDaysPastDueForSuspendingIncomeRecognition	P90D
CY2024Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	700000	usd
CY2023Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	800000	usd
CY2024Q1	slg	Segment Operator Tax Expenses SegmentOperatorTaxExpenses	-1300000	usd
CY2023Q1	slg	Segment Operator Tax Expenses SegmentOperatorTaxExpenses	1300000	usd
CY2024Q1	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Use of Estimates</span></div><div style="margin-bottom:6pt;text-align:justify;text-indent:24.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates.</span></div>
CY2024Q1	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Concentrations of Credit Risk</span></div><div style="margin-bottom:6pt;text-align:justify;text-indent:24.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Financial instruments that potentially subject us to concentrations of credit risk consist primarily of cash investments, debt and preferred equity investments and accounts receivable. We place our cash investments with high quality financial institutions. The collateral securing our debt and preferred equity investments is located in New York City. See Note 5, "Debt and Preferred Equity Investments." </span></div>We perform initial and ongoing evaluations of the credit quality of our tenants and require most tenants to provide security deposits or letters of credit. Though these security deposits and letters of credit are insufficient to meet the total value of a tenant's lease obligation, they are a measure of good faith and a potential source of funds to offset the economic costs associated with lost revenue from that tenant and the costs associated with re-tenanting a space.
CY2024Q1	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Reclassification</span></div><div style="margin-bottom:6pt;text-align:justify;text-indent:24.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Certain prior year balances have been reclassified to conform to our current year presentation.</span></div>As of December 31, 2023, SUMMIT met the criteria of a reportable operating segment pursuant to the guidance in ASC 280. Accordingly, we reclassified SUMMIT Operator revenue, SUMMIT Operator expenses, and SUMMIT Operator tax expense to separate financial statement line items in our consolidated statements of operations. These items were previously presented on a net basis in Other income. Additionally, the depreciation and amortization of SUMMIT assets are included in Depreciation and amortization in our consolidated statements of operations. Prior period balances have been reclassified to conform to the current period presentation.
CY2024Q1	slg	Number Of Real Estate Properties Acquired From Third Party NumberOfRealEstatePropertiesAcquiredFromThirdParty	0	property
CY2024Q1	slg	Number Of Investments Nonperforming NumberOfInvestmentsNonperforming	2	investment
CY2024Q1	slg	Financing Receivable Portfolio Segments Number FinancingReceivablePortfolioSegmentsNumber	1	segment
CY2023	slg	Financing Receivable Portfolio Segments Number FinancingReceivablePortfolioSegmentsNumber	1	segment
CY2024Q1	srt	Mortgage Loans On Real Estate Interest Rate MortgageLoansOnRealEstateInterestRate	0.0872
CY2024Q1	slg	Secured Debt Bearing Variable Interest Amount SecuredDebtBearingVariableInterestAmount	110493000	usd
CY2023Q4	slg	Secured Debt Bearing Variable Interest Amount SecuredDebtBearingVariableInterestAmount	110000000	usd
CY2024Q1	slg	Secured Debt Gross SecuredDebtGross	1701378000	usd
CY2023Q4	slg	Secured Debt Gross SecuredDebtGross	1497386000	usd
CY2024Q1	slg	Secured Debt Deferred Finance Costs Net SecuredDebtDeferredFinanceCostsNet	6215000	usd
CY2023Q4	us-gaap	Deferred Costs Current And Noncurrent DeferredCostsCurrentAndNoncurrent	111463000	usd
CY2024Q1	slg	Secured Debt Bearing Fixed Interest Amount SecuredDebtBearingFixedInterestAmount	1590885000	usd
CY2023Q4	slg	Secured Debt Bearing Fixed Interest Amount SecuredDebtBearingFixedInterestAmount	1387386000	usd
CY2023Q4	us-gaap	Mortgage Loans On Real Estate MortgageLoansOnRealEstate	346745000	usd
CY2022Q4	us-gaap	Mortgage Loans On Real Estate MortgageLoansOnRealEstate	623280000	usd
CY2024Q1	us-gaap	Mortgage Loans On Real Estate Amortization Of Premium MortgageLoansOnRealEstateAmortizationOfPremium	0	usd
CY2023	us-gaap	Mortgage Loans On Real Estate Amortization Of Premium MortgageLoansOnRealEstateAmortizationOfPremium	349947000	usd
CY2024Q1	slg	Sec Schedule1229 Real Estate Companies Investment In Mortgage Loans On Real Estate Loan Loss Reserve Period Increase Decrease SECSchedule1229RealEstateCompaniesInvestmentInMortgageLoansOnRealEstateLoanLossReservePeriodIncreaseDecrease	0	usd
CY2023	slg	Sec Schedule1229 Real Estate Companies Investment In Mortgage Loans On Real Estate Loan Loss Reserve Period Increase Decrease SECSchedule1229RealEstateCompaniesInvestmentInMortgageLoansOnRealEstateLoanLossReservePeriodIncreaseDecrease	-6890000	usd
CY2024Q1	us-gaap	Mortgage Loans On Real Estate MortgageLoansOnRealEstate	352347000	usd
CY2023Q4	us-gaap	Mortgage Loans On Real Estate MortgageLoansOnRealEstate	346745000	usd
CY2024Q1	slg	Number Of Investments Nonperforming NumberOfInvestmentsNonperforming	2	investment
CY2024Q1	us-gaap	Mortgage Loans On Real Estate Commercial And Consumer Net MortgageLoansOnRealEstateCommercialAndConsumerNet	352347000	usd
CY2024Q1	slg	Mortgage Loanson Real Estate Senior Financing MortgageLoansonRealEstateSeniorFinancing	1334257000	usd
CY2024Q1	slg	Number Of Investments Nonperforming NumberOfInvestmentsNonperforming	2	investment
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	13520000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	6630000	usd
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	0	usd
CY2023	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	6890000	usd
CY2024Q1	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	13520000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	13520000	usd
CY2024Q1	slg	Financing Receivable Nonaccrual No Allowance Number FinancingReceivableNonaccrualNoAllowanceNumber	1	loan
CY2024Q1	slg	Number Of Investments Nonperforming NumberOfInvestmentsNonperforming	2	investment
CY2023Q4	slg	Number Of Investments Nonperforming NumberOfInvestmentsNonperforming	2	investment
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	352347000	usd
CY2023Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	346745000	usd
CY2024Q1	slg	Number Of Investments Nonperforming NumberOfInvestmentsNonperforming	2	investment
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear	0	usd
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear	0	usd
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear	0	usd
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear	352347000	usd
CY2024Q1	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	352347000	usd
CY2024Q1	slg	Variable Interest Entity Not Primary Beneficiary Investment VariableInterestEntityNotPrimaryBeneficiaryInvestment	407500000	usd
CY2023Q4	slg	Variable Interest Entity Not Primary Beneficiary Investment VariableInterestEntityNotPrimaryBeneficiaryInvestment	437900000	usd
CY2023Q2	slg	Equity Method Investment Ownership Percentage Deconsolidated EquityMethodInvestmentOwnershipPercentageDeconsolidated	0.501
CY2023	us-gaap	Assets Fair Value Adjustment AssetsFairValueAdjustment	17000000	usd
CY2023Q4	us-gaap	Equity Method Investments EquityMethodInvestments	2983313000	usd
CY2024Q1	us-gaap	Equity Method Investment Difference Between Carrying Amount And Underlying Equity EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity	548200000	usd
CY2024Q1	us-gaap	Deferred Costs Leasing Gross DeferredCostsLeasingGross	402025000	usd
CY2023Q4	us-gaap	Deferred Costs Leasing Gross DeferredCostsLeasingGross	399224000	usd
CY2024Q1	slg	Accumulated Amortization Of Deferred Costs AccumulatedAmortizationOfDeferredCosts	292729000	usd
CY2023Q4	slg	Accumulated Amortization Of Deferred Costs AccumulatedAmortizationOfDeferredCosts	287761000	usd
CY2024Q1	us-gaap	Deferred Costs Current And Noncurrent DeferredCostsCurrentAndNoncurrent	109296000	usd
CY2023Q4	slg	Secured Debt Deferred Finance Costs Net SecuredDebtDeferredFinanceCostsNet	6067000	usd
CY2024Q1	us-gaap	Secured Debt SecuredDebt	1695163000	usd
CY2023Q4	us-gaap	Secured Debt SecuredDebt	1491319000	usd
CY2024Q1	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	2000000000	usd
CY2023Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	1900000000	usd
CY2024Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal Remainder Of Fiscal Year LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear	586230000	usd
CY2024Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	470000000	usd
CY2024Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	190148000	usd
CY2024Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	2250000000	usd
CY2024Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	205000000	usd
CY2024Q1	slg	Long Term Debt Maturity After Year Four LongTermDebtMaturityAfterYearFour	100000000	usd
CY2024Q1	slg	Long Term Debt Maturities Repayments Of Principal LongTermDebtMaturitiesRepaymentsOfPrincipal	3801378000	usd
CY2024Q1	us-gaap	Interest Expense InterestExpense	48869000	usd
CY2023Q1	us-gaap	Interest Expense InterestExpense	64843000	usd
CY2024Q1	slg	Finance Lease Interest Expense Before Capitalized Interest FinanceLeaseInterestExpenseBeforeCapitalizedInterest	1120000	usd
CY2023Q1	slg	Finance Lease Interest Expense Before Capitalized Interest FinanceLeaseInterestExpenseBeforeCapitalizedInterest	1106000	usd
CY2024Q1	us-gaap	Interest Costs Incurred Capitalized InterestCostsIncurredCapitalized	17949000	usd
CY2023Q1	us-gaap	Interest Costs Incurred Capitalized InterestCostsIncurredCapitalized	25464000	usd
CY2024Q1	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	0	usd
CY2023Q1	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	1487000	usd
CY2024Q1	us-gaap	Interest Income Operating InterestIncomeOperating	867000	usd
CY2023Q1	us-gaap	Interest Income Operating InterestIncomeOperating	319000	usd
CY2024Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-31173000	usd
CY2023Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-41653000	usd
CY2024Q1	slg	Total Shares Authorized TotalSharesAuthorized	260000000	shares
CY2024Q1	slg	Total Par Or Stated Value Per Share TotalParOrStatedValuePerShare	0.01
CY2024Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	160000000	shares
CY2024Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2024Q1	us-gaap	Excess Stock Shares Authorized ExcessStockSharesAuthorized	75000000	shares
CY2024Q1	slg	Excess Stock Par Or Stated Value Per Share ExcessStockParOrStatedValuePerShare	0.01
CY2024Q1	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	25000000	shares
CY2024Q1	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2024Q1	us-gaap	Excess Stock Shares Outstanding ExcessStockSharesOutstanding	0	shares
CY2024Q1	us-gaap	Excess Stock Shares Issued ExcessStockSharesIssued	0	shares
CY2023	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	0	shares
CY2023	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	0
CY2024Q1	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	0	shares
CY2024Q1	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	0
CY2024Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	13141000	usd
CY2023Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-39731000	usd
CY2024Q1	us-gaap	Distributed Earnings DistributedEarnings	434000	usd
CY2023Q1	us-gaap	Distributed Earnings DistributedEarnings	406000	usd
CY2024Q1	slg	Net Income Loss Available To Common Stockholders After Distributed And Undistributed Earnings Allocation Basic NetIncomeLossAvailableToCommonStockholdersAfterDistributedAndUndistributedEarningsAllocationBasic	12707000	usd
CY2023Q1	slg	Net Income Loss Available To Common Stockholders After Distributed And Undistributed Earnings Allocation Basic NetIncomeLossAvailableToCommonStockholdersAfterDistributedAndUndistributedEarningsAllocationBasic	-40137000	usd
CY2024Q1	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Diluted UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted	-434000	usd
CY2023Q1	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Diluted UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted	0	usd
CY2024Q1	us-gaap	Dilutive Securities Effect On Basic Earnings Per Share Other DilutiveSecuritiesEffectOnBasicEarningsPerShareOther	901000	usd
CY2023Q1	us-gaap	Dilutive Securities Effect On Basic Earnings Per Share Other DilutiveSecuritiesEffectOnBasicEarningsPerShareOther	-2837000	usd
CY2024Q1	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	14042000	usd
CY2023Q1	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-42974000	usd
CY2024Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	64328000	shares
CY2023Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	64079000	shares
CY2024Q1	slg	Incremental Common Shares Attributable To Redemption Of Units To Common Shares IncrementalCommonSharesAttributableToRedemptionOfUnitsToCommonShares	4439000	shares
CY2023Q1	slg	Incremental Common Shares Attributable To Redemption Of Units To Common Shares IncrementalCommonSharesAttributableToRedemptionOfUnitsToCommonShares	4103000	shares
CY2024Q1	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1328000	shares
CY2023Q1	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2024Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	70095000	shares
CY2023Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	68182000	shares
CY2024Q1	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	135000	shares
CY2023Q1	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1275225	shares
CY2024Q1	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	300000	usd
CY2023Q1	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	400000	usd
CY2024Q1	slg	Other Comprehensive Income Loss Deferred Net Lossfrom Terminated Hedges OtherComprehensiveIncomeLossDeferredNetLossfromTerminatedHedges	-300000	usd
CY2023Q4	slg	Other Comprehensive Income Loss Deferred Net Lossfrom Terminated Hedges OtherComprehensiveIncomeLossDeferredNetLossfromTerminatedHedges	-400000	usd
CY2024Q1	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	10673000	usd
CY2023Q1	us-gaap	Operating Lease Variable Lease Income OperatingLeaseVariableLeaseIncome	20450000	usd
CY2024Q1	slg	Operating Lease Lease Income Fixed And Variable Lease Payments OperatingLeaseLeaseIncomeFixedAndVariableLeasePayments	141553000	usd
CY2023Q1	slg	Operating Lease Lease Income Fixed And Variable Lease Payments OperatingLeaseLeaseIncomeFixedAndVariableLeasePayments	186803000	usd
CY2024Q1	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-49000	usd
CY2023Q1	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	8239000	usd
CY2024Q1	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	141504000	usd
CY2023Q1	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	195042000	usd
CY2024Q1	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	51388000	usd
CY2024Q1	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	7754000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	9591000	usd
CY2023Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	33456000	usd
CY2023Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	17108000	usd
CY2024Q1	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	-8100000	usd
CY2024Q1	us-gaap	Assets Needed For Immediate Settlement Aggregate Fair Value AssetsNeededForImmediateSettlementAggregateFairValue	8500000	usd
CY2024Q1	us-gaap	Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths	-32800000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	36861000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	-19408000	usd
CY2024Q1	us-gaap	Interest Rate Cash Flow Hedge Gain Loss Reclassified To Earnings Net InterestRateCashFlowHedgeGainLossReclassifiedToEarningsNet	-13647000	usd
CY2023Q1	us-gaap	Interest Rate Cash Flow Hedge Gain Loss Reclassified To Earnings Net InterestRateCashFlowHedgeGainLossReclassifiedToEarningsNet	-11651000	usd
CY2024Q1	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	128252000	usd
CY2023Q1	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	166353000	usd
CY2024Q1	us-gaap	Operating Lease Variable Lease Income OperatingLeaseVariableLeaseIncome	13301000	usd
CY2024Q1	us-gaap	Sublease Income SubleaseIncome	48400000	usd
CY2023Q1	us-gaap	Sublease Income SubleaseIncome	48900000	usd
CY2024Q1	us-gaap	Sales Type Lease Interest Income SalesTypeLeaseInterestIncome	1120000	usd
CY2023Q1	us-gaap	Sales Type Lease Interest Income SalesTypeLeaseInterestIncome	1106000	usd
CY2024Q1	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	segment
CY2024Q1	us-gaap	Revenues Revenues	187882000	usd
CY2023Q1	us-gaap	Revenues Revenues	245764000	usd
CY2024Q1	slg	Income Loss From Continuing Operations Before Realized Gain Loss On Disposal Of Equity Method Investment IncomeLossFromContinuingOperationsBeforeRealizedGainLossOnDisposalOfEquityMethodInvestment	18389000	usd
CY2023Q1	slg	Income Loss From Continuing Operations Before Realized Gain Loss On Disposal Of Equity Method Investment IncomeLossFromContinuingOperationsBeforeRealizedGainLossOnDisposalOfEquityMethodInvestment	-38357000	usd
CY2024Q1	us-gaap	Assets Assets	9764292000	usd
CY2023Q4	us-gaap	Assets Assets	9531181000	usd
CY2024Q1	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	segment
CY2024Q1	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	21300000	usd
CY2023Q1	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	23300000	usd
CY2024Q1	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	segment
CY2024Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	196035000	usd

Files In Submission

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$SLG
SL Green Realty Corp Stock $slg

2024 Q2 Form 10-Q Financial Statement

#000104097124000018 Filed on May 06, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SLG SL Green Realty Corp Stock $slg

2024 Q2 Form 10-Q Financial Statement

#000104097124000018 Filed on May 06, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SLG
SL Green Realty Corp Stock $slg