Document and Entity Information Abstract Document and Entity Information Statement [Table] Statement [Line Items] Document Type Amendment Flag Document Period End Date Document Fiscal Year Focus Document Fiscal Period Focus Trading Symbol Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Entity Filer Category Entity Common Stock, Shares Outstanding Consolidated Balance Sheets ASSETS Assets Operating (including $97,265 and $68,643 of consolidated variable interest entities, respectively) Operating (including $157,443 and $97,157 of consolidated variable interest entities, respectively) Construction-in-progress Real Estate Held-for-sale Assets held for sale (discontinued operations) Real Estate Investment Property, at Cost Real Estate Investment Property, At Cost, Total Less accumulated depreciation and amortization (including $3,803 and $3,053 of consolidated variable interest entities, respectively) Less accumulated depreciation and amortization (including $4,978 and $4,431 of consolidated variable interest entities, respectively) Net real estate Real estate, net Net real estate Cash and cash equivalents Cash and cash equivalents at end of period Cash and cash equivalents at beginning of year Cash and Cash Equivalents, at Carrying Value, Total Accounts and notes receivable, net Accounts and Notes Receivable, Net, Total Mortgage notes receivable, net Mortgage Loans on Real Estate, Commercial and Consumer, Net, Total Investment in real estate partnerships Our investment in real estate partnership Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures, Total Prepaid expenses and other assets Prepaid Expense and Other Assets, Total Debt issuance costs, net of accumulated amortization of $8,545 and $8,291, respectively Debt issuance costs, net of accumulated amortization of $9,396 and $9,075, respectively Deferred Finance Costs, Net, Total Total assets TOTAL ASSETS Liabilities Mortgages payable (including $22,946 and $23,417 of consolidated variable interest entities, respectively) Mortgages payable (including $22,621 and $22,785 of consolidated variable interest entities, respectively) Secured Debt, Total Capital lease obligations Capital Lease Obligations, Total Notes payable Notes Payable, Total Senior notes and debentures Senior notes and debentures, carrying value Senior Notes, Total Fixed senior notes Accounts payable and accrued expenses Accounts Payable and Accrued Liabilities, Total Dividends payable Security deposits payable Other liabilities & deferred credits which includes deferred revenue, prepaid rent and below market leases. Also includes liabilities not individually reported in the financial statements, or not separately disclosed in notes. Other liabilities and deferred credits Total liabilities Total liabilities Commitments and contingencies (Note 7) Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Shareholders' equity Preferred shares, authorized 15,000,000 shares, $.01 par: 5.417% Series 1 Cumulative Convertible Preferred Shares, (stated at liquidation preference $25 per share), 399,896 shares issued and outstanding Preferred Stock, Value, Issued, Ending Balance Preferred Stock, Value, Issued, Beginning Balance Preferred shares, authorized 15,000,000 shares, $.01 par: 5.417% Series 1 Cumulative Convertible Preferred Shares, (stated at liquidation preference $25 per share), 399,896 shares issued and outstanding Preferred Stock, Value, Issued, Total Common shares of beneficial interest, $.01 par, 100,000,000 shares authorized, 61,451,155 and 61,242,050 shares issued and outstanding, respectively Common Stock, Value, Issued, Ending Balance Common Stock, Value, Issued, Beginning Balance Common shares of beneficial interest, $.01 par, 100,000,000 shares authorized, 62,231,702 and 61,526,418 shares issued and outstanding, respectively Common Stock, Value, Issued, Total Additional Paid in Capital, Common Stock Additional Paid in Capital, Common Stock, Ending Balance Additional Paid in Capital, Common Stock, Beginning Balance Additional paid-in capital Accumulated Distributions in Excess of Net Income Accumulated dividends in excess of net income Total shareholders' equity of the Trust Stockholders' Equity Attributable to Parent, Ending Balance Stockholders' Equity Attributable to Parent, Beginning Balance Total shareholders' equity of the Trust Stockholders' Equity Attributable to Noncontrolling Interest Stockholders' Equity Attributable to Noncontrolling Interest, Ending Balance Stockholders' Equity Attributable to Noncontrolling Interest, Beginning Balance Stockholders' Equity Attributable to Noncontrolling Interest, Total Noncontrolling interests Total shareholders' equity Ending balance Beginning balance Total shareholders' equity TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY Operating real estate balances from variable interest entities, or VIEs, for the periods presented. Operating Real Estate From Consolidated Variable Interest Entities Operating, consolidated variable interest entities Accumulated Depreciation And Amortization, Consolidated Variable Interest Entities. Accumulated depreciation and amortization, consolidated variable interest entities Debt issuance costs, accumulated amortization Mortgages payable balances from variable interest entities, or VIEs, for the periods presented. Mortgage Payable From Consolidated Variable Interest Entities Mortgages payable, consolidated variable interest entities Preferred shares, authorized Preferred shares, par Preferred shares, 5.417% Series 1 Cumulative Convertible liquidation preference Preferred shares, shares issued Preferred Stock, Shares Issued, Total Preferred shares, shares outstanding Preferred Stock, Shares Outstanding, Ending Balance Preferred Stock, Shares Outstanding, Beginning Balance Common shares of beneficial interest, par Common shares of beneficial interest, shares authorized Common shares of beneficial interest, shares issued Common Stock, Shares, Issued, Total Common shares of beneficial interest, shares outstanding Common Stock, Shares, Outstanding, Ending Balance Common Stock, Shares, Outstanding, Beginning Balance Consolidated Statements of Operations REVENUE The total amount of rental revenue recognized for the period from real estate operations, including minimum rent, straight-line rent, percentage rent and tenant reimbursements. Rental income Total rental income Total rental income Other property income Interest income earned from mortgage notes receivable. Revenue Mortgage Interest Mortgage interest income Total revenue Total revenue Revenue EXPENSES Rental expenses Real estate taxes General and administrative General and Administrative Expense, Total Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction, Total Total operating expenses Total expenses Total operating expenses OPERATING INCOME OPERATING INCOME Other interest income Interest expense Interest expense Interest expense Interest expense Interest expense Interest Expense, Total Early extinguishment of debt Early extinguishment of debt Gains (Losses) on Extinguishment of Debt, Total Income from real estate partnerships Income from real estate partnerships Our share of net income from real estate partnership Income (Loss) from Equity Method Investments, Total INCOME FROM CONTINUING OPERATIONS Income from continuing operations INCOME FROM CONTINUING OPERATIONS Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract] DISCONTINUED OPERATIONS Discontinued operations-income Income (loss) from discontinued operations Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax, Total Net income Net income/Comprehensive income NET INCOME Less: Net income attributable to noncontrolling interests Net income attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest, Total NET INCOME ATTRIBUTABLE TO THE TRUST NET INCOME ATTRIBUTABLE TO THE TRUST Income from continuing operations attributable to the Trust Less: Preferred share dividends Dividends on preferred shares Preferred Stock Dividends, Total NET INCOME AVAILABLE FOR COMMON SHAREHOLDERS NET INCOME AVAILABLE FOR COMMON SHAREHOLDERS EARNINGS PER COMMON SHARE, BASIC Income (Loss) from Continuing Operations, Per Basic Share Income (Loss) from Continuing Operations, Per Outstanding Share, Total Continuing operations Income (Loss) from Discontinued Operations, Net of Tax, Per Basic Share Income (Loss) from Discontinued Operations, Net of Tax, Per Outstanding Share, Total Discontinued operations Earnings Per Share, Basic Total earnings per share, basic EARNINGS PER COMMON SHARE, DILUTED Income (Loss) from Continuing Operations, Per Diluted Share Continuing operations Income (Loss) from Discontinued Operations, Net of Tax, Per Diluted Share Income (Loss) from Discontinued Operations, Net of Tax, Per Diluted Share, Total Discontinued operations Earnings Per Share, Diluted Total earnings per share, diluted Consolidated Statement of Shareholders' Equity Statement, Equity Components [Axis] Equity Component [Domain] Preferred Shares [Member] Common Shares [Member] Additional Paid-in Capital [Member] Accumulated Dividends in Excess of Net Income [Member] Noncontrolling Interests [Member] Shares, Issued Ending balance (in shares) Beginning balance (in shares) Dividends declared to common shareholders Dividends declared to common shareholders Dividends declared to preferred shareholders Dividends declared to preferred shareholders Distributions declared to noncontrolling interests Distributions declared to noncontrolling interests Common shares issued (in shares) Common shares issued Exercise of stock options (in shares) Stock options Exercise of stock options Shares issued under dividend reinvestment plan (in shares) Shares issued under dividend reinvestment plan Number of shares issued during the period as a result of our long term incentive, bonus or other share based compensation plans, net of restricted share award forfeitures. Share Based Compensation Expense Net Shares Share-based compensation expense, net (in shares) Value of shares issued during the period as a result of our long term incentive, bonus or other share based compensation plans, and the amount of share-based compensation recognized during the period, net of restricted share award forfeitures. Share Based Compensation Expense Net Value Share-based compensation expense, net Consolidated Statements of Cash Flows OPERATING ACTIVITIES Adjustments to reconcile net income to net cash provided by operating activities The cash flow addback for the non-cash expense of depreciation and amortization including depreciation and amortization related to discontinued operations. Adjustment Depreciation And Amortization Depreciation and amortization, including discontinued operations Other, net Changes in assets and liabilities, net of effects of acquisitions and dispositions: Changes in assets and liabilities, net of effects of acquisitions and dispositions Decrease in accounts receivable (Increase) decrease in accounts receivable Increase in prepaid expenses and other assets Decrease in prepaid expenses and other assets Decrease in prepaid expenses and other assets Increase (Decrease) in Prepaid, Deferred Expense and Other Assets, Total (Decrease) increase in accounts payable and accrued expenses Decrease in accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities, Total The net change in Security Deposits And Other Liabilities which includes security deposits, deferred revenue and prepaid rent. Also includes liabilities not individually reported in the financial statements, or not separately disclosed in notes. Increase Decrease In Security Deposits And Other Liabilities (Decrease) increase in security deposits and other liabilities Decrease in security deposits and other liabilities Net cash provided by operating activities Net cash provided by operating activities INVESTING ACTIVITIES Acquisition of real estate Acquisition of real estate Payments to Acquire Real Estate, Total Payments to develop or redevelop real estate assets is the process of adding improvements on or to a parcel of land. Such improvements may include drainage, utilities, subdividing, access, buildings, and any combination of these elements. In addition, the cash outflow from construction costs to date on capital projects that have not been completed and assets being constructed that are not ready to be placed into service. Capital Expenditures Development Redevelopment Capital expenditures - development and redevelopment Capital expenditures-development and redevelopment Capital expenditures-other Capital expenditures - other Payments to Acquire Interest in Subsidiaries and Affiliates Investment in real estate partnerships Payments to Acquire Interest in Subsidiaries and Affiliates, Total Distribution from real estate partnership in excess of earnings Leasing costs Leasing costs The cash outflow from the issuance and purchase of receivables arising from the mortgage note on real estate and other notes receivable, net of repayments. Issuance And Repayments Of Mortgage And Other Notes Receivable Net Repayment (issuance) of mortgage and other notes receivable, net Issuance of mortgage and other notes receivable, net Repayment (issuance) of mortgage and other notes receivable, net Net cash used in investing activities Net cash used in investing activities FINANCING ACTIVITIES The net cash inflow (outflow) from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with either short term or long term maturity net of costs incurred. Proceeds From Repayments Of Lines Of Credit Net borrowings (repayments) under revolving credit facility, net of costs Net borrowings under revolving credit facility, net of costs Issuance of senior notes, net of costs Purchase and retirement of senior notes Purchase and retirement of senior notes/debentures Repayments of Senior Debt, Total Repayment of mortgages, capital leases and notes payable Repayment of mortgages, capital leases and notes payable Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities, Total Issuance of common shares The cash outflow from distribution of an entity's earnings to common and preferred stockholders. Dividends Paid To Common And Preferred Shareholders Dividends paid to common and preferred shareholders Distributions to noncontrolling interests Distributions to noncontrolling interests Net cash (used in) provided by financing activities Net cash provided by (used in) financing activities (Decrease) increase in cash and cash equivalents Decrease in cash and cash equivalents Summary Of Significant Policies Disclosure [Abstract] Summary of Significant Accounting Policies Summary of Significant Accounting Policies Describes the following: 1) The nature of the entity's business, the major service it provides and its principal markets, including the locations of those markets; 2) All significant accounting policies including the entity's accounting policy regarding principles of consolidation, its treatments of interests in other entities, for example consolidation or use of equity or cost methods of accounting, its accounting treatment for intercompany accounts & transactions; 3) An entity's explanation that the preparation of financial statements in conformity with generally accepted accounting principles requires the use of management estimates; 4) Information on the supplemental cash flow activities, including cash and noncash transactions, for the period. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period; 5) Disclosure of any changes in an accounting principle including the method of applying an accounting principle; 6) Disclosure of new accounting pronouncements that have been issued but not yet adopted. Business Description And Significant Accounting Policies Text Block SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Summary of Significant Accounting Policies Real Estate Disclosure [Abstract] Real Estate Disclosure of real estate acquisitions, dispositions and discontinued operations and at year end, a summary of our real estate investments and related encumbrances. Real Estate Acquisitions Dispositions Discontinued Operations Text Block REAL ESTATE Real Estate Mortgage Notes Receivable Disclosure [Abstract] Mortgage Notes Receivable Loans Notes Trade And Other Receivables Disclosure Text Block Mortgage Notes Receivable MORTGAGE NOTES RECEIVABLE Real estate partnerships disclosure [Abstract] Real Estate Partnerships Equity Method Investments Disclosure Text Block Real Estate Partnerships REAL ESTATE PARTNERSHIPS Debt Debt Disclosure Text Block Debt Fair Value Of Financial Instruments Disclosure [Abstract] Fair Value of Financial Instruments Fair Value Disclosures Text Block Fair Value of Financial Instruments Commitments And Contingencies Disclosure [Abstract] Commitments and Contingencies Commitments And Contingencies Disclosure Text Block Commitments and Contingencies Shareholders' Equity Stockholders' Equity Note Disclosure [Text Block] Shareholders' Equity SHAREHOLDERS' EQUITY Components Of Rental Income And Expense [Abstract] Components of Rental Income The principal components of rental income and/or rental expense recognized for the period. Operating Leases Revenue And Expense Text Block COMPONENTS OF RENTAL INCOME AND EXPENSE Components of Rental Income Share Based Compensation Plans Disclosure [Abstract] Share Based Compensation Plans Disclosure Of Compensation RelatedCosts Share Based Payments Text Block Share-Based Compensation Plans SHARE-BASED COMPENSATION PLANS Earnings Per Share Earnings Per Share Earnings Per Share Text Block Earnings Per Share EARNINGS PER SHARE Subsequent Events Disclosure [Abstract] Subsequent Events Schedule of SUBSEQUENT EVENT SUBSEQUENT EVENT Subsequent Events