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Document and Entity Information
Financial Statements
Consolidated Balance Sheets (Unaudited)
Consolidated Balance Sheets (Unaudited) (Parentheticals)
Consolidated Statements of Income (Unaudited)
Consolidated Statements of Comprehensive Income (Unaudited)
Consolidated Statements of Changes in Equity (Unaudited)
Consolidated Statements of Changes in Equity (Unaudited) - Parenthetical (Unaudited)
Consolidated Statements of Cash Flows (Unaudited)
Consolidated Statements of Cash Flows (Unaudited) (Parentheticals)
Notes to Financial Statements
Organization
COVID-19 Pandemic
Basis of Presentation
Recently Issued Accounting Literature
Revenue Recognition
Real Estate Fund Investments
Marketable Securities
Investments in Partially Owned Entities
220 Central Park South 220 CPS
Identified Intangible Assets and Liabilities
Debt
Redeemable Noncontrolling Interests/Redeemable Partnership Units
Shareholders' Equity/Partners' Capital
Variable Interest Entities
Fair Value Measurements
Stock-based Compensation
Interest and Other Investment (Loss) Income, Net
Interest and Debt Expense
Income Per Share/Income Per Class A Unit
Commitments and Contingencies
Segment Information
Accounting Policies
Recently Issued Accounting Literature (Policies)
Notes Tables
Revenue Recognition (Tables)
Real Estate Fund Investments (Tables)
Marketable Securities (Tables)
Investments in Partially Owned Entities (Tables)
Identified Intangible Assets and Liabilities (Tables)
Debt (Tables)
Redeemable Noncontrolling Interests/Redeemable Partnership Units (Tables)
Shareholders' Equity/Partners' Capital (Tables)
Fair Value Measurements (Tables)
Interest and Other Investment (Loss) Income, Net (Tables)
Interest and Debt Expense (Tables)
Income Per Share/Income Per Class A Unit (Tables)
Segment Information (Tables)
Notes Details
Organization (Narrative) (Details)
COVID-19 Pandemic - Narrative (Details)
Recently Issued Accounting Literature (Narrative) (Details)
Revenue Recognition - Narrative (Details)
Revenue Recognition - Revenues by Segment (Details)
Revenue Recognition - Components of Lease Revenue (Details)
Real Estate Fund Investments (Narrative) (Details)
Real Estate Fund Investments (Income from the Fund and the Co-Investment) (Details)
Marketable Securities (Narrative) (Details)
Marketable Securities (Marketable securities portfolio) (Details)
Investments in Partially Owned Entities - Fifth Avenue and Times Square JV (Details)
Investments in Partially Owned Entities - Latest Financial Information of Fifth Avenue and Times Square JV (Details)
Investments in Partially Owned Entities (Alexander's Inc.) (Details)
Investments in Partially Owned Entities (Summary of Investments) (Details)
Investments in Partially Owned Entities (Summary of Income (Loss)) (Details)
220 Central Park South 220 CPS - Narrative (Details)
Identified Intangible Assets and Liabilities - Narrative (Details)
Identified Intangible Assets and Liabilities - Schedule of Identified Intangible Assets and Intangible Liabilities (Details)
Identified Intangible Assets and Liabilities - Schedule of Future Amortization Expense of Intangible Assets (Details)
Debt (Narrative) (Details)
Debt (Summary of Debt) (Details)
Redeemable Noncontrolling Interests/Redeemable Partnership Units (Narrative) (Details)
Redeemable Noncontrolling Interests/Redeemable Partnership Units (Activity of Redeemable Noncontrolling Interests) (Details)
Shareholders' Equity/Partners' Capital - Narrative (Details)
Shareholders' Equity/Partners' Capital - Schedule of Dividends (Details)
Shareholders' Equity/Partners' Capital - AOCI by Component (Details)
Variable Interest Entities - Narrative (Details)
Fair Value Measurements (Narrative) (Details)
Fair Value Measurements (Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details)
Fair Value Measurements (Unobervable Quantitative Input Ratios) (Details)
Fair Value Measurements (Changes in the Fair Value of Real Estate Fund Investments and Deferred Compensation Plan Assets) (Details)
Fair Value Measurements (Changes in the Fair Value of Loans Receivable) (Details)
Fair Value Measurements (Carrying amounts and fair value of financial instruments) (Details)
Fair Value Measurements (Summary of Derivative Instruments) (Details)
Stock-based Compensation (Narrative) (Details)
Interest and Other Investment (Loss) Income, Net (Details)
Interest and Debt Expense (Details)
Interest and Debt Expense - Footnote (Details)
Income Per Share/Income Per Class A Unit (Narrative) (Details)
Income Per Share/Income Per Class A Unit (Details)
Commitments and Contingencies (Narrative) (Details)
Segment Information (Narrative) (Details)
Segment Information (Summary of net income and EBITDA reconciliation by segment) (Details)
Segment Information - Summary of NOI by Segment (Details)
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