Land Buildings and improvements Total Land, Building and improvements, at cost Total real estate, at cost Represents a total which may include the following: (1) land; (2) investments in building and building improvements; (3) tenant allowances; (4) developments in-process; (5) rental properties; and (6) other real estate investments. Less accumulated depreciation and amortization Less accumulated depreciation and amortization Net real estate held for investment Net real estate held for investment Real estate held for sale, net Carrying amount as of the balance sheet date of investments in land and buildings held for sale. Net real estate Total of (1) improvements, (2) held-for-sale, (3) land and buildings, (4) construction-in-process, and (5) other real estate investments which are considered inventory due to being held for sale or disposition. Net real estate Cash and cash equivalents Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Accounts receivable Accounts receivable, net Goodwill Other assets, net Total assets Total assets Distributions payable Accounts payable and accrued expenses Other liabilities Line of credit payable Notes payable Total liabilities Total liabilities Preferred Stock And Paid In Capital Preferred stock and paid in capital, par value $1.00 per share, 20,000,000 shares authorized, 13,900,000 shares issued and outstanding Dollar value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) whether issued at par value, no par or stated value. This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity. Also, reflects value received from shareholders in nonredeemable preferred stock related transactions that are in excess of par value, value contributed to an entity and value received from other stock related transactions. Examples of other stock related transactions include, amongst other, certain costs incurred in issuing equity securities, certain dividends and certain tax-based consequences of share-based payments compensation awards. Includes only nonredeemable preferred stock transactions or transactions related to preferred stock that are redeemable solely at the option of the issuer. May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital. Common stock and paid in capital, par value $1.00 per share, 200,000,000 shares authorized, 104,497,838 and 104,286,705 shares issued and outstanding as of June 30, 2010 and December 31, 2009, respectively Common Stock And Paid In Capital Distributions in excess of net income Distributions in excess of net income Total stockholders' equity Total stockholders' equity Total liabilities and stockholders' equity Total liabilities and stockholders' equity Statement of Financial Position [Abstract] Assets [Abstract] ASSETS Real Estate Investment Property, at Cost [Abstract] Real estate, at cost: Liabilities and Stockholders' Equity [Abstract] LIABILITIES AND STOCKHOLDERS' EQUITY Commitments and contingencies Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Stockholders' equity: Preferred stock and paid in capital, par value Preferred stock and paid in capital, shares authorized Preferred stock and paid in capital, shares issued Preferred stock and paid in capital, shares outstanding Common stock and paid in capital, par value Common stock and paid in capital, shares authorized Common stock and paid in capital, shares issued Common stock and paid in capital, shares outstanding Income Statement [Abstract] Revenues [Abstract] REVENUE Rental Other Total Revenue Total revenue Depreciation and amortization Interest General and administrative Property Income taxes Total Expenses Total expenses Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. Additionally, includes amount of general expenses not normally included in Other Operating Costs and Expenses. Income Loss From Continuing Operations Income from continuing operations Real estate acquired for resale by Crest This element represents the overall income (loss) from discontinued operations related to real estate acquired for resale by a subsidiary of the entity, net of income tax, reported as a separate component of income before extraordinary items and the cumulative effect of accounting changes before deduction or consideration of the amount which may be allocable to noncontrolling interests, if any. Includes the following (net of tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal. Real estate acquired for resale Total Income (loss) from discontinued operations Total income from discontinued operations Real estate held for investment This element represents the overall income (loss) from discontinued operations related to real estate held for investment, net of income tax, reported as a separate component of income before extraordinary items and the cumulative effect of accounting changes before deduction or consideration of the amount which may be allocable to noncontrolling interests, if any. Includes the following (net of tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal. Real estate held for investment Net income Net income Preferred stock cash dividends Preferred stock cash dividends Net income available to common stockholders Net income available to common stockholders Operating Expenses [Abstract] EXPENSES Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract] Income from discontinued operations: Income from continuing operations, Basic Basic Earnings Per Share, Basic [Abstract] Amounts available to common stockholders per common share: Income from continuing operations, Diluted Diluted Net Income Per Common Share [Abstract] Net income: Basic The amount of net income or loss for the period per each share of common stock outstanding during the reporting period. Diluted The amount of net income or loss for the period per each share of common stock and dilutive common stock equivalents outstanding during the reporting period. Weighted average common shares outstanding: Basic Weighted Average Number Of Shares Outstanding Basic Diluted Weighted Average Number Of Diluted SharesO utstanding Amortization of share-based compensation Gain on sale of land Provisions for impairment on real estate held for investment Real estate acquired for resale This element represents cash provided by (used in) discontinued operations for real estate acquired for resale by the REIT taxable subsidiary, Crest, during the period. This element should only be used by those entities that separately report cash flows attributable to discontinued operations. If using this element, it is an indication that the cash flows of the entity which are detailed in reconciling to cash provided by or used in operating activities reflect only cash flows attributable to continuing operations. Discontinued operations, Real estate held for investment Real estate held for investment This element represents cash provided by (used in) discontinued operations for real estate held for investment during the period. This element should only be used by those entities that separately report cash flows attributable to discontinued operations. If using this element, it is an indication that the cash flows of the entity which are detailed in reconciling to cash provided by or used in operating activities reflect only cash flows attributable to continuing operations. Investment in real estate acquired for resale This element represents cash used in discontinued operations for the investment in real estate acquired for resale by the REIT taxable subsidiary, Crest, during the period. This element should only be used by those entities that separately report cash flows attributable to discontinued operations. If using this element, it is an indication that the cash flows of the entity which are detailed in reconciling to cash provided by or used in operating activities reflect only cash flows attributable to continuing operations. Proceeds from sales of real estate acquired for resale Cash received for the sale of real estate held-for-sale in discontinued operations that is not part of an investing activity during the current period Collection of notes receivable by Crest This element represents cash provided by discontinued operations for the collection of principal on notes receivable by the REIT taxable subsidiary, Crest, during the period. This element should only be used by those entities that separately report cash flows attributable to discontinued operations. If using this element, it is an indication that the cash flows of the entity which are detailed in reconciling to cash provided by or used in operating activities reflect only cash flows attributable to continuing operations. Accounts receivable and other assets The net change during the reporting period in the total amount due within one year (or one operating cycle) from all parties, associated with underlying transactions that are classified as operating activities and the net change during the reporting period in the value of this group of assets within the working capital section. Accounts payable, accrued expenses and other liabilities Net cash provided by operating activities Net cash provided by operating activities Continuing operations The net cash from (used in) the entity's investing activities specifically EXCLUDING the cash flows derived by the entity from its discontinued operations, if any, and the cash received from the sale of real estate that is held for investment, that is, it is part of an investing activity during the period. This element is only to be used when the entity reports its cash flows attributable to discontinued operations separately from the cash flow provided by or used in investing activities. Such reporting would necessitate the entity to use the Net Cash Provided by (Used in) Discontinued Operations, Total element provided in the taxonomy. Proceeds from the sales of investment properties: Continuing operations Discontinued operations This element represents cash provided by (used in) the investing activities of the entity's discontinued operations during the period and the cash received from the sale of real estate that is held for investment, that is, it is part of an investing activity during the period. This element should only be used by those entities that separately report cash flows attributable to discontinued operations. If using this element, it is an indication that the cash flows of the entity which are detailed in reconciling to cash provided by or used in investing activities reflect only cash flows attributable to continuing operations. Proceeds from the sales of investment properties, discontinued operations Acquisition of and improvements to investment properties Acquisition of and improvements to investment properties Intangibles acquired in connection with acquisitions of investment properties Intangibles acquired in connection with acquisitions of investment properties Restricted escrow deposit for Section 1031 tax-deferred exchange Net cash used in investing activities Net cash provided by (used in) investing activities Cash distributions to common stockholders Cash distributions to common stockholders Cash dividends to preferred stockholders Cash dividends to preferred stockholders Principal payment on notes payable Principal payment on notes payable Debt issuance costs Debt issuance costs Proceeds from common stock offering, net costs of $3,952 Proceeds from preferred stock offerings, net Proceeds from notes issued, net of financing costs of $3,740 Payments under line of credit Borrowings from line of credit Other items The cash inflow associated with the amount received from holders exercising their stock options and the net cash inflow (outflow) from other financing activities, including amounts withheld for taxes on vested common shares. This element is used when there is not a more specific and appropriate element in the taxonomy. Net cash used in financing activities Net cash provided by (used in) financing activities Net decrease in cash and cash equivalents Net decrease in cash and cash equivalents Statement of Cash Flows [Abstract] CASH FLOWS FROM OPERATING ACTIVITIES Adjustments to net income: Income from discontinued operations [Abstract] Income from discontinued operations: Cash provided by (used in) discontinued operations: Change in assets and liabilities [Abstract] Change in assets and liabilities: CASH FLOWS FROM INVESTING ACTIVITIES Proceeds from the sales of investment properties: CASH FLOWS FROM FINANCING ACTIVITIES Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Management Statement Notes Payable Fair Value of Financial Assets and Liabilities Gain on Sales of Real Estate Acquired for Resale by Crest This element represents certain disclosures of real estate investment financial statements, real estate investment trust operating support agreements, real estate owned, retail land sales, time share transactions, as well as other real estate related disclosures, including gains on sales of real estate acquired for resale by the REIT taxable subsidiary, Crest. This element may be used as a single block of text to encapsulate the entire real estate disclosure including data and tables. Gain on Sales of Investment Properties by Realty Income This element represents certain disclosures of real estate investment financial statements, real estate investment trust operating support agreements, real estate owned, retail land sales, time share transactions, as well as other real estate related disclosures, including gains on sales of investment properties. This element may be used as a single block of text to encapsulate the entire real estate disclosure including data and tables. Net Income Per Common Share Supplemental Disclosures of Cash Flow Information Segment Information Common Stock Incentive Plan Commitments and Contingencies [Text Block] Commitments and Contingencies Summary of Significant Accounting Policies and Procedures and Recent Accounting Pronouncements [Text Block] Summary of Significant Accounting Policies and Procedures Properties Acquired Credit Facility Common Stock Offerings Preferred Stock [Text Block] Preferred Stock This element is used to capture the complete disclosure pertaining to an entity's preferred stock, including par or stated value per share, number and dollar amount of share subscriptions, shares authorized, shares issued, shares outstanding, number and dollar amount of shares held in an employee trust, dividend per share, total dividends, share conversion features, par value plus additional paid in capital, the value of treasury stock and other information necessary to a fair presentation. If more than one issue is outstanding, state the title of each issue and the corresponding dollar amount; dollar amount of any shares subscribed but unissued and the deduction of subscriptions receivable there from; number of shares authorized, issued and outstanding. Discontinued Operations Distributions Paid and Payable [Text Block] Distributions Paid and Payable This element may be used to capture the complete disclosure pertaining to an entity's capital units or capital shares, including the value of capital units or capital shares, units authorized, units outstanding and other information necessary to a fair presentation. Additionally, this text block may be used to disclose all or some of the information related to dividends declared, but not paid, as of the financial reporting date. Operating Leases Employee Benefit Plan Schedule of Subsequent Events [Text Block] Subsequent Events Document Type Amendment Flag Amendment Description Document Period End Date Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Filer Category Entity Public Float Entity Common Stock, Shares Outstanding Document Fiscal Year Focus Document Fiscal Period Focus Document Information [Text Block] Entity [Text Block] Notes To Financial Statements [Abstract] Income from continuing operations Payments under line of credit Restricted escrow deposit for Section 1031 tax-deferred exchange