Accounts and notes receivable, net Accounts payable and accrued expenses The charge against earnings in the period to increase loss contingency reserves, net of any adjustments to reduce previously estimated charges. Accrual Carrying Value, Loss Contingency Provision Litigation provision Debt issuance costs, accumulated amortization Accumulated Depreciation And Amortization, Consolidated Variable Interest Entities. Accumulated depreciation and amortization, consolidated variable interest entities Accumulated Distributions in Excess of Net Income Accumulated dividends in excess of net income Accumulated Dividends in Excess of Net Income Additional Paid in Capital, Common Stock Additional paid-in capital Additional Paid-in Capital The cashflow addback for the non-cash expense of depreciation and amortization including depreciation and amortization related to discontinued operations. Depreciation and amortization, including discontinued operations Other, net Adjustments to reconcile net income to net cash provided by operating activities Amendment Flag TOTAL ASSETS TOTAL ASSETS ASSETS 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 ac tivities 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. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES 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 and redevelopment Capital expenditures-development and redevelopment Capital lease obligations Cash and cash equivalents Cash and cash equivalents at end of period Cash and cash equivalents at beginning of year (Decrease) increase in cash and cash equivalents (Decrease) increase in cash and cash equivalents Commitments and contingencies (Note 7) COMMITMENTS AND CONTINGENCIES Common Shares Common shares of beneficial interest, par Common shares of beneficial interest, shares authorized Common shares of beneficial interest, shares issued Common shares of beneficial interest, shares outstanding Common shares of beneficial interest, $.01 par, 100,000,000 shares authorized, 61,451,155 and 61,242,050 shares issued and outstanding, respectively Construction-in-progress Decrease in noncontrolling interest as a result of redeeming, purchasing and/or converting to common stock the interests of Operating Partnership Units. Conversion and redemption of OP units Current Fiscal Year End Date DEBT Debt issuance costs, net of accumulated amortization of $8,545 and $8,291, respectively Depreciation and amortization Rental expenses SHARE-BASED COMPENSATION PLANS Discontinued operations-gain on sale of real estate Discontinued operations-income Dividends declared to common shareholders Dividends declared to common shareholders 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 Dividends payable Dividends declared to preferred shareholders Dividends declared to preferred shareholders Document - Document and Entity Information [Abstract] Document - Document and Entity Information [Abstract] Document Fiscal Period Focus Document Fiscal Year Focus Document Period End Date Document Type Earnings Per Share, Basic Earnings Per Share, Basic, Total EARNINGS PER COMMON SHARE, BASIC Earnings Per Share, Diluted Earnings Per Share, Diluted, Total EARNINGS PER COMMON SHARE, DILUTED EARNINGS PER SHARE Entity Central Index Key Entity Common Stock, Shares Outstanding Entity [Domain] Entity Filer Category Entity Registrant Name Equity Component [Domain] REAL ESTATE PARTNERSHIPS FAIR VALUE OF FINANCIAL INSTRUMENTS Gain (Loss) on Sale of Properties Gain on sale of real estate Gain (Loss) on Sale of Properties, Net of Applicable Income Taxes Gain on sale of real estate Gain On Sale Of Real Estate Per Basic Share. Gain On Sale Of Real Estate Per Basic Share Gain on sale of real estate Gain On Sale Of Real Estate Per Diluted Share. Gain On Sale Of Real Estate Per Diluted Share Gain on sale of real estate Early extinguishment of debt Early extinguishment of debt General and administrative INCOME BEFORE GAIN ON SALE OF REAL ESTATE INCOME BEFORE GAIN ON SALE OF REAL ESTATE INCOME FROM CONTINUING OPERATIONS INCOME FROM CONTINUING OPERATIONS Income (Loss) from Continuing Operations, Per Basic Share Continuing operations Income (Loss) from Continuing Operations, Per Diluted Share Continuing operations Results from discontinued operations Results from discontinued operations Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract] DISCONTINUED OPERATIONS Income (Loss) from Discontinued Operations, Net of Tax, Per Basic Share Discontinued operations Income (Loss) from Discontinued Operations, Net of Tax, Per Diluted Share Discontinued operations Income from real estate partnerships Income from real estate partnerships Income Statement [Abstract] Decrease in accounts receivable Decrease in accounts receivable (Decrease) increase in accounts payable and accrued expenses Leasing costs Leasing costs Changes in assets and liabilities, net of effects of acquisitions and dispositions: Increase in prepaid expenses and other assets Increase in prepaid expenses and other assets 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. (Decrease) increase in security deposits and other liabilities Interest Expense Interest expense Other interest income Investment in real estate partnerships 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 of mortgage and other notes receivable, net Legal Entity [Axis] Total liabilities Total liabilities Liabilities TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY LIABILITIES AND SHAREHOLDERS' EQUITY Litigation provision includes changes in loss contingency reserves related to the litigation and appeal process over a parcel of land located adjacent to Santana Row and legal and other costs related to the lawsuit and appeal process. Litigation provision MORTGAGE NOTES RECEIVABLE Stockholders' Equity Attributable to Noncontrolling Interest Noncontrolling interests Distributions declared to noncontrolling interests Distributions declared to noncontrolling interests Mortgage notes receivable, net Mortgages payable balances from variable interest entities, or VIEs, for the periods presented. Mortgages payable, consolidated variable interest entities Net cash (used in) provided by financing activities Net cash (used in) provided by financing activities FINANCING ACTIVITIES Net cash used in investing activities Net cash used in investing activities INVESTING ACTIVITIES Net cash provided by operating activities Net cash provided by operating activities OPERATING ACTIVITIES NET INCOME ATTRIBUTABLE TO THE TRUST NET INCOME ATTRIBUTABLE TO THE TRUST Net income attributable to noncontrolling interests Net income attributable to noncontrolling interests NET INCOME AVAILABLE FOR COMMON SHAREHOLDERS NET INCOME AVAILABLE FOR COMMON SHAREHOLDERS Noncontrolling Interests Notes payable Notes to Financial Statements [Abstract] Notes to Financial Statements [Abstract] Total operating expenses Total operating expenses EXPENSES OPERATING INCOME OPERATING INCOME COMPONENTS OF RENTAL INCOME Operating real estate balances from variable interest entities, or VIEs, for the periods presented. Operating, consolidated variable interest entities 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 Other property income Capital expenditures-other Capital expenditures-other Distributions to noncontrolling interests Distributions to noncontrolling interests Payments to Acquire Interest in Subsidiaries and Affiliates Investment in real estate partnerships Acquisition of real estate Acquisition of real estate Dividends on preferred shares Dividends on preferred shares Preferred shares, liquidation preference Preferred Shares Preferred shares, par Preferred shares, authorized Preferred shares, shares issued Preferred shares, shares outstanding 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 Prepaid expenses and other assets Distribution from real estate partnership in excess of earnings Issuance of common shares Issuance of mortgages, capital leases and notes payable, net of costs Issuance of senior notes, net of costs 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. Net borrowings (repayments) under revolving credit facility, net of costs Proceeds from sale of real estate Net income Net income/Comprehensive income NET INCOME Disclosure of real estate acquisitions, dispositions and discontinued operations. REAL ESTATE Less accumulated depreciation and amortization (including $3,803 and $3,053 of consolidated variable interest entities, respectively) Less accumulated depreciation and amortization (including $3,803 and $3,053 of consolidated variable interest entities, respectively) Real Estate Investment Property, at Cost Real Estate Investment Property, at Cost, Total Real estate, at cost Net real estate Net real estate Real estate taxes 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 Operating (including $97,265 and $68,643 of consolidated variable interest entities, respectively) Repayment of mortgages, capital leases and notes payable Repayment of mortgages, capital leases and notes payable Purchase and retirement of senior notes Purchase and retirement of senior notes Interest income earned from mortgage notes receivable. Mortgage interest income Total revenue Total revenue REVENUE SUBSEQUENT EVENT Mortgages payable (including $22,946 and $23,417 of consolidated variable interest entities, respectively) Security deposits payable Senior notes and debentures 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 (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 Shares, Issued Ending balance (in shares) Beginning balance (in shares) Statement, Equity Components [Axis] Statement [Line Items] Statement of Cash Flows [Abstract] Statement of Financial Position [Abstract] Statement of Stockholders' Equity [Abstract] Statement [Table] Total shareholders' equity of the Trust Total shareholders' equity of the Trust Total shareholders' equity Ending balance Beginning balance Total shareholders' equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Shareholders' equity Stockholders' Equity Note Disclosure [Text Block] SHAREHOLDERS' EQUITY Shares issued under dividend reinvestment plan (in shares) Common shares issued (in shares) Exercise of stock options (in shares) Shares issued under dividend reinvestment plan Common shares issued Exercise of stock options Trading Symbol