Real Estate Held For Investment Net And Other Real Estate Owned -- None. No documentation exists for this element. -- Real Estate Held for Investment, net and Other Real Estate Owned Real Estate Owned [Text Block] Commitments and Contingencies Disclosure [Abstract] Schedule of unfunded commitments Unfunded Financial Commitments [Table Text Block] Tabular disclosure of off-balance sheet unfunded financial commitments which includes performance-based commitments, discretionary funding arrangements and strategic investment commitments. Loans and Other Lending Investments Net -- None. No documentation exists for this element. -- Schedule of Impaired Financing Receivable [Table] Schedule of Impaired Financing Receivable [Table] Non-accrual basis [Axis] Non-accrual basis [Axis] Non-accrual basis [Axis] Non-accrual basis [Domain] Non-accrual basis [Domain] [Domain] for Non-accrual basis [Axis] Non-performing senior mortgages Non-Performing First Mortgage [Member] Represents the non-performing loans secured by real property that have a first (highest) lien on such property in the event of default by the borrower. Accounts, Notes, Loans and Financing Receivable by Receivable Type [Axis] Receivable Type [Axis] Receivable Type [Domain] Receivable Type [Domain] Senior mortgages First Mortgage [Member] Subordinate mortgages Second Mortgage [Member] Corporate/Partnership loans Corporate Debt Securities [Member] Impaired Loans Related Allowance [Axis] Impaired Loans Related Allowance [Axis] Attributes of impaired loans classified as impaired with or without specific allowance related to the loans, by class of financial receivable. Impaired Loans Related Allowance [Domain] Impaired Loans Related Allowance [Domain] Represents a subset of a class of impaired loans that have or do not have the specific allowances related to the impaired receivables. Receivables With Allowance [Member] Receivables With Allowance [Member] Receivables With Allowance [Member] Receivables Without Allowance [Member] Receivables Without Allowance [Member] Receivables Without Allowance [Member] Investment in impaired loans Financing Receivable, Impaired [Line Items] Recorded Investment Impaired Financing Receivable, Recorded Investment Unpaid Principal Balance Impaired Financing Receivable, Unpaid Principal Balance Related Allowance Impaired Financing Receivable, Related Allowance Loans modified through troubled debt restructurings Financing Receivable, Modifications, Recorded Investment Average Recorded Investment Impaired Financing Receivable, Average Recorded Investment Interest Income Recognized Impaired Financing Receivables Interest Income Cash or Accrual Method The interest income recognized on a cash-basis or accrual method of accounting during the time within that period that the financing receivables were impaired. Recorded investment (comprised of a loans carrying value plus accrued interest) in loans and the associated reserve for loan losses Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract] Loans Loans Gross [Abstract] -- None. No documentation exists for this element. -- Individually Evaluated for Impairment Financing Receivable, Individually Evaluated for Impairment Collectively Evaluated for Impairment Financing Receivable, Collectively Evaluated for Impairment Loans Acquired with Deteriorated Credit Quality Financing Receivable, Acquired with Deteriorated Credit Quality Total Financing Receivable, Net Less: Reserve for loan losses Loans Receivable Allowance [Abstract] -- None. No documentation exists for this element. -- Individually Evaluated for Impairment Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment Collectively Evaluated for Impairment Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment Loans Acquired with Deteriorated Credit Quality Financing Receivable, Allowance for Credit Losses, Acquired with Deteriorated Credit Quality Total Loans Receivable Allowance The allowance for loan losses represents the reserve to cover probable credit losses related to specifically identified loans, as well as probable credit losses inherent in the remainder of the loan portfolio as of the balance sheet date. Total Loans Net [Abstract] -- None. No documentation exists for this element. -- Individually Evaluated for Impairment Financing Receivable Individually Evaluated for Impairment, Net of Reserve for Loan Losses The balance of financing receivables that were individually evaluated for impairment net of reserve for loan losses. Collectively Evaluated for Impairment Financing Receivable Collectively Evaluated for Impairment, Net of Reserve for Loan Losses The balance of financing receivables that were collectively evaluated for impairment net of reserve for loan losses. Loans Acquired with Deteriorated Credit Quality Financing Receivable Acquired with Deteriorated Credit Quality, Net of Reserve for Loan Losses The balance of financing receivables that were acquired with deteriorated credit quality net of reserve for loan losses. Total Financing Receivable, Net of Reserve for Loan Losses The amount of the recorded investment in a contractual right to receive money on demand or on fixed or determinable dates that is recognized as an asset in the creditor's statement of financial position, net of reserve for loan losses. Unamortized discounts, premiums, deferred fees and costs, individually evaluated for impairment, net premium (discount) Unamortized Discount Premium Deferred Fees and Costs, Individually Evaluated for Impairment Represents the unamortized discounts, premiums, deferred fees and costs relating to loans individually evaluated for impairment and shown as a net premium (discount). Unamortized discounts, premiums, deferred fees and costs, collectively evaluated for impairment, net premium (discount) Unamortized Discount Premium Deferred Fees and Costs Collectively Evaluated for Impairment Represents the unamortized discounts, premiums, deferred fees and costs relating to loans collectively evaluated for impairment and shown as a net premium (discount). Unamortized discounts, premiums, deferred fees and costs, loans acquired with deteriorated credit quality, net premium (discount) Unamortized Discount Premium Deferred Fees and Costs Loans Acquired with Deteriorated Credit Quality Represents the unamortized discounts, premiums, deferred fees and costs relating to loans acquired with deteriorated credit quality and shown as a net premium (discount). Cumulative principal balances of loans acquired with deteriorated credit quality Financing Receivable Acquired with Deteriorated Credit Quality Cumulative Principal Balance Represents the cumulative principal balance of financing receivables that were acquired with deteriorated credit quality. Fair Value Disclosures [Abstract] Fair Value Inputs, Assets, Quantitative Information [Table] Fair Value Inputs, Assets, Quantitative Information [Table] Fair Value by Asset Class [Axis] Asset Class [Axis] Fair Value Assets, Measured on Nonrecurring Basis, Unobservable Input Reconciliation by Asset Class [Domain] Fair Value Assets, Measured on Nonrecurring Basis, Unobservable Input Reconciliation by Asset Class [Domain] Represents classes of assets measured on non-recurring basis and disclosed at fair value. Impaired net lease assets - income producing properties Impaired Net Lease Assets Related to Income Producing Properties [Member] Represents the impaired net lease assets related to income producing properties held by the entity as of the balance sheet date. Impaired Loans Related to Income Producing Properties Other [Member] Impaired Loans Other Real Estate 2 [Member] Impaired Loans Other Real Estate - Member 2 Impaired Loans Other Real Estate [Member] Impaired Loans Other Real Estate 1 [Member] Impaired Loans Other Real Estate - Member 1 Impaired Loans Other Real Estate 3 [Member] Impaired Loans Other Real Estate 3 [Member] Impaired Loans Other Real Estate 3 Valuation Technique [Axis] Valuation Technique [Axis] Valuation Technique [Domain] Valuation Technique [Domain] Discounted cash flow Discounted Cash Flow Valuation Technique [Member] Discounted cash flow valuation technique used to measure fair value. Various valuation technique Various Valuation Technique [Member] Various Valuation Technique Comparable sales Technique Comparable Sales Technique [Member] Comparable Sales Technique Quantitative information about Level 3 fair value measures Fair Value Inputs, Assets, Quantitative Information [Line Items] Fair value of assets Assets, Fair Value Disclosure Discount rate (as a percent) Fair Value Inputs, Discount Rate Capitalization rate (as a percent) Fair Value Inputs Capitalization Rate Represents the weighted average capitalization rate, used as an unobservable input to measure the fair values. Average annual percentage market rate growth (as a percent) Fair Value Inputs, Average Annual Market Rate Growth Represents the weighted average annual market rate growth, used as an unobservable input to measure fair values. Fair value annual increase in occupancy Fair value annual increase in occupancy Represents the weighted average annual increase in occupancy, used as an unobservable input to measure the fair values. Fair value inputs price per acre FairValueInputsPricePerAcre Fair Value Inputs Price Per Acre Average annual increase in occupancy (as a percent) Fair Value Inputs, Average Annual Increase in Occupancy Represents the weighted average annual increase in occupancy, used as an unobservable input to measure the fair values. Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative [Table] Derivative [Table] Derivative, by Nature [Axis] Derivative, by Nature [Axis] Derivative, Name [Domain] Derivative, Name [Domain] Foreign currency derivatives Forward Contracts [Member] Sells EUR /Buys USD Forward Sells EUR Buys USD Forward [Member] Represents the Sells EUR /Buy USD Forward Foreign currency contract member. Sells GBP/Buys USD Forward Sells GBP Buys USD Forward [Member] Represents the Sells GBP/ Buy USD Forward Foreign currency contract member. Sells CAD/Buys USD Forward Sells CAD Buys USD Forward [Member] Represents the Sells CAD Buy USD Forward Foreign currency contract member. Interest rate swap Interest Rate Swap One [Member] Forward based contracts first in which two parties agree to swap periodic payments that are fixed at the outset of the swap contract with variable payments based on a market interest rate (index rate) over a specified period. Derivatives Derivative [Line Items] Notional Amount Notional Amount of Foreign Currency Derivatives Maturity Maturity of Foreign Currency Derivatives Other expense Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred Expense related to qualifying cash flow hedges expected to be reclassified to earnings over the next 12 months Cash Flow Hedge Expense Expected to be Reclassified to Earnings in Next Twelve Months The amount of expenses on cash flow hedges expected to be reclassified to earnings from accumulated other comprehensive income over the next twelve months. Income related to previously terminated cash flow hedges expected to be reclassified to earnings over the next 12 months Cash Flow Hedge Income Expected to be Reclassified to Earnings in Next Twelve Months The amount of income on previously terminated cash flow hedges expected to be reclassified to earnings from accumulated other comprehensive income over the next twelve months. Foreign currency derivative collateral included in restricted cash Cash Collateral for Borrowed Securities Stockholders' Equity Note [Abstract] Stock Repurchase Program Stock Repurchase Program [Abstract] -- None. No documentation exists for this element. -- Repurchase of common stock, authorized amount Stock Repurchase Program, Authorized Amount Number of common stock shares repurchased (in shares) Treasury Stock, Shares, Acquired Amount of common stock shares repurchased Treasury Stock Value Acquired Including Acquisition Costs Value of treasury stock acquired excluding costs for acquiring the shares. Average cost of shares repurchased (in dollars per share) Treasury Stock Acquired, Average Cost Per Share Available repurchase of common stock, authorized amount Stock Repurchase Program, Remaining Authorized Repurchase Amount Statement of Cash Flows [Abstract] Statement [Table] Statement [Table] Statement, Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Statement Statement [Line Items] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Net income (loss) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Adjustments to reconcile net income (loss) to cash flows from operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Provision for loan losses Provision for Loan Losses Expensed Impairment of assets Asset Impairment Charges, Cash Flow Impact The cash flow impact of charges against earnings resulting from the write down of assets due to the difference between the carrying value and lower fair value. Depreciation and amortization Depreciation, Depletion and Amortization Payments for employee taxes upon vesting of stock-based compensation Stock Based Compensation Shares Withheld For Employee Taxes Upon Vesting Shares withheld for employee taxes upon vesting of stock-based compensation arrangements. Non-cash expense for stock-based compensation Share-based Compensation Amortization of discounts/premiums and deferred financing costs on debt Amortization of Financing Costs and Discounts Amortization of discounts/premiums and deferred interest on lending investments Amortization of Discounts or Premiums Deferred Interest and Costs on Lending Investments The component of interest income representing the noncash interest earned in the period on loans and other lending investments as well as the amortization of deferred costs or fees over the related loan investments. Earnings from equity method investments Income (Loss) from Equity Method Investments Distributions from operations of equity method investments Proceeds from Equity Method Investment, Dividends or Distributions Deferred operating lease income Straight Line Rent Income from sales of residential property Residential Property Profit (Loss) The gain resulting from the sale or other disposition of residential properties or components of those assets during the period. Gain from discontinued operations Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax Gain (loss) on early extinguishment of debt, net Gains (Losses) on Extinguishment of Debt, Cash Flow Impact Amount represents the cash flow impact of the difference between the fair value of the payments made and the carrying amount of the debt at the time of its extinguishment. Repayments and repurchases of debt - debt discount Repayments and repurchases of debt discount The component of debt repayments representing repayment of original issue discounts, classified as operating cash flows. Other operating activities, net Other Operating Activities, Cash Flow Statement Changes in assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Changes in accrued interest and operating lease income receivable, net Increase (Decrease) in Accrued Interest and Operating Lease and Income Receivable This element represents net change during the reporting period in accrued interest income and operating lease income receivable earned but not yet received. Changes in deferred expenses and other assets, net Increase (Decrease) in Prepaid Expense and Other Assets Changes in accounts payable, accrued expenses and other liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Cash flows from operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Fundings under existing loan commitments Payments for Funding under Existing Loan Commitments This element represents cash outflow for funding under existing loan commitments. Repayments of and principal collections on loans Proceeds from Principal Repayments on Loans Held-for-Investment The cash inflow from repayments of the balance excluding interest (principal) on loans receivable held for investment purposes. Net proceeds from sales of loans Proceeds from Sale of Loans Held-for-investment Net proceeds from sales of net lease assets Proceeds from Sale of Real Estate Held-for-investment Net proceeds from sales of other real estate owned Proceeds from Sale of Foreclosed Assets Contributions to unconsolidated entities Payments for Contributions to Unconsolidated Entities This element represents payments for contributions to unconsolidated entities. Distributions from unconsolidated entities Proceeds from Distributions from Unconsolidated Entities This element represents the amount of capital distributions received from unconsolidated subsidiaries. These investments are accounted for under the equity method of accounting. Capital expenditures on net lease assets Payments for Capital Expenditures on Net Lease Assets This element represents cash outflow for capital expenditures on net lease assets. Capital expenditures on REHI and OREO Payments for Capital Expenditures on Real Estate Held-for-Investment and Other Real Estate Owned This element represents cash outflow for capital expenditures on real estate held for investment and other real estate owned assets. Changes in restricted cash held in connection with investing activities Increase (Decrease) in Restricted Cash Other investing activities, net Payments for (Proceeds from) Other Investing Activities Cash flows from investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Borrowings under secured credit facilities Borrowings under Credit Facilities The cash inflow from credit facilities with either short term or long term maturity that is collateralized (backed by pledge, mortgage or other lien in the entity's assets). Repayments under secured credit facilities Repayments under Credit Facilities The cash outflow to pay off obligations under credit facilities with either short term or long term maturity that is collateralized (backed by pledge, mortgage or other lien in the entity's assets). Repayments under unsecured credit facilities Repayments of Lines of Credit Unsecured The cash outflow to pay off an unsecured obligation 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. Borrowings under secured term loans Proceeds from Issuance of Secured Debt Repayments under secured term loans Repayments of Secured Debt Instruments The cash outflow to repay debt that is wholly or partially secured by collateral. Includes both short and long term debt instruments. Borrowings under unsecured notes Borrowings Under Unsecured Debt Instruments The cash inflow from debt that is not secured by collateral. Includes both short and long term debt instruments. Repayments under unsecured notes Repayments of Unsecured Debt Instruments The cash outflow to repay debt that is not secured by collateral. Includes both short and long term debt instruments. Repurchases and redemptions of secured and unsecured notes Repurchase and Redemption of Secured and Unsecured Notes The cash outflow for the repurchase and redemption of secured and unsecured debt obligations prior to their maturity. Payments for deferred financing costs Payments of Financing Costs Preferred dividends paid Payments of Ordinary Dividends, Preferred Stock and Preference Stock Purchase of treasury stock Payments for Repurchase of Equity Changes in restricted cash held in connection with debt obligations Increase (Decrease) in Restricted Cash Held in Connection with Debt This element represents net change during the reporting period in restricted cash held in connection with debt obligations. Other financing activities Proceeds from (Payments for) Other Financing Activities Cash flows from financing activities Net Cash Provided by (Used in) Financing Activities Changes in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents at beginning of period Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents at end of period Statement of Other Comprehensive Income [Abstract] Other comprehensive income (loss): Other Comprehensive Income (Loss), Net of Tax [Abstract] Reclassification of (gains)/losses on cash flow hedges into earnings upon realization Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Net of Tax Unrealized gains/(losses) on available-for-sale securities Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Unrealized gains/(losses) on cash flow hedges Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax Unrealized gains/(losses) on cumulative translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax Comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Net (income) loss attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Comprehensive income (loss) attributable to iStar Financial Inc. Comprehensive Income (Loss), Net of Tax, Attributable to Parent Commitments and Contingencies Commitments Contingencies Concentration of Risk and Legal Matters and Contingencies Disclosure [Text Block] This element describes concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact. The entity should inform financial statement users about the general nature of the risk associated with the concentration, and may indicate the percentage of concentration risk as of the balance sheet date. In addition, this element includes disclosure of commitments and contingencies including legal proceedings, legal contingencies, litigation, regulatory and environmental matters and other contingencies. Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Stock-Based Compensation Plans and Employee Benefits Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table] Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table] Derivative Instrument Risk [Axis] Derivative Instrument Risk [Axis] Derivative Contract Type [Domain] Derivative Contract Type [Domain] Cash flow interest rate swap Interest Rate Swap [Member] Foreign exchange contracts Foreign Exchange Contract [Member] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Designated as hedge Designated as Hedging Instrument [Member] Not designated as hedge Not Designated as Hedging Instrument [Member] Derivative financial instruments on consolidated statements of operations Derivative Instruments, Gain (Loss) [Line Items] Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income (Effective Portion) Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Earnings (Effective Portion) Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net Amount of Gain or (Loss) Recognized in Income on Derivative Derivative Instruments, Gain (Loss) Recognized in Income, Net Unfunded Financial Commitments [Table] Unfunded Financial Commitments [Table] Summarization of information required or determined to be disclosed about arrangements in which the entity has committed to off-balance sheet financial commitments. Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Issuance of debt Issuance of Debt [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Unsecured Notes LIBOR plus 0.50% senior convertible notes Unsecured Notes LIBOR Plus Point 50 Percent Senior Convertible Notes Due October 2012 [Member] Unsecured Notes LIBOR + 0.50% senior convertible notes due October 2012 debt instrument of the entity. New credit facility due October 2017 New credit facility due October 2017 [Member] Represents the New credit facility which is due October 2017. Unsecured debt Unsecured Debt [Member] Secured debt Secured Debt [Member] Unfunded Financial Commitments [Axis] Unfunded Financial Commitments [Axis] Information by arrangements in which the entity has committed to off-balance sheet financial commitments. Unfunded Financial Commitments [Domain] Unfunded Financial Commitments [Domain] This item is intended to be populated, by the entity, with Members identifying each off-balance sheet financial commitment. Loans Loans Receivable [Member] Net Lease Assets Net Lease, Assets [Member] Represents the funding of build-outs of space in net lease assets by the entity. Strategic Investments Strategic Investments [Member] Represents the investment of capital in several real estate funds and other ventures by the entity. Unfunded Commitments Unfunded Financial Commitments [Line Items] Additional number of loans restructured (in loans) Financing Receivable Modifications, Number of Additional Contracts Restructured Financing Receivable Modifications, Number of Additional Contracts Restructured Financing Receivable Modifications Recorded Investment of Contracts Whose Reduced Principal Financing Receivable Modifications Recorded Investment of Contracts Whose Reduced Principal Recorded investment of financing receivable whose principal was reduced at modification. Recorded investment of loans whose maturity was extended Financing Receivable Modifications Recorded Investment of Contracts Whose Maturity Extended Represents the amount of the outstanding recorded investment related to financing receivables for which the maturity was extended and that has been modified by troubled debt restructurings. Total debt obligations Long-term Debt, Gross 2013 Long Term Debt Maturities Repayments Of Principal In First Full Fiscal Year Amount of long-term debt maturing within the first full fiscal year following the date of the most recent balance sheet presented in the financial statements. Cash and cash equivalents and restricted cash available for repayment of indebtedness Cash and Cash Equivalents and Restricted Cash Available for Repayment of Indebtedness Represents the amount of cash and cash equivalents and restricted cash; reserved for repayment of indebtedness. Repayment of principal amount Debt Instrument, Decrease, Repayments Borrowings on debt instrument Debt Instrument, Increase, Additional Borrowings Long Term Debt Maturities of Principal Until December 2013 Long Term Debt Maturities of Principal Until December 2013 Amount of long-term debt maturing by December 2013 following the date of the most recent balance sheet presented in the financial statements. Properties pledged as collateral book value Properties Pledged as Collateral Book Value Represents the book value of properties pledged as collateral. Debt maturities Debt Maturities Represents the amount of debt maturing. Percentage of capital committed to strategic investments that may be drawn down Percentage of Capital Committed that May be Drawn Down Represents the percentage of capital committed to strategic investments by the entity that may be drawn down. Performance-Based Commitments Performance-Based Commitments Represents the off-balance sheet unfunded maximum amount of funds for construction and development loans and build-outs of space in net lease assets over a period of time if and when the borrowers and tenants meet established milestones and other performance criteria. Discretionary Fundings Discretionary Fundings Represents the off-balance sheet maximum amount of potential additional fundings which the entity will make available to a borrower or tenant for an expansion or addition to a project if it approves of the expansion or addition at its sole discretion. Other Other Commitments Represents the off-balance sheet maximum other commitments of the entity. Total Unfunded Commitments Represents certain off-balance sheet unfunded commitments of the entity. Unencumbered assets excluding cash and other assets carrying v Unencumbered assets excluding cash and other assets carrying v Unencumbered assets excluding cash and other assets carrying v Financing Receivable Modification Chargeoffs Financing Receivable Modification Chargeoffs Chargeoffs taken on financing receivables modified during the period Weighted average maturity period of loans (in years) Financing Receivable Modifications Weighted Average Maturity Period of Loans Represents the weighted average maturity period of loans. Number of loans restructured (in loans) Financing Receivable Modifications, Number of Contracts Restructured Number of loans restructured during the period. Financing Receivable Modifications Recorded Investment of Contracts Whose Maturity Extended and Reduced Principal Financing Receivable Modifications Recorded Investment of Contracts Whose Maturity Extended and Reduced Principal Recorded investment of financing Receivable whose maturity was extended and principal was reduced Weighted average maturity rate of loans before reduction Financing Receivable Modifications Weighted Average Rate of Loans before Reduction Represents the weighted average rate of loans before reduction. Financing Receivable Modifications Weighted Average Rate of Loans after Reduction Financing Receivable Modifications Weighted Average Rate of Loans after Reduction Represents the weighted average rate of loans after reduction. Total unencumbered assets Unencumbered Assets Based on Recorded Carrying Value Represents the amount of owned assets based on their recorded carrying value that do not have any legal claim against them. Segment Reporting [Abstract] Segment Profit (Loss) Segment Profit (Loss) Amount of profit or loss during the period recognized by the reportable segment. Provision for Loan Losses Expensed Asset Impairment Charges Asset Impairment Charges Allocated Share-based Compensation Expense Allocated Share-based Compensation Expense Depreciation, Depletion and Amortization, Nonproduction Depreciation, Depletion and Amortization, Nonproduction Income Tax Expense (Benefit) Income Tax Expense (Benefit) Reconciliation of segment profit (loss) to income (loss) from continuing operations Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Abstract] Less: Income from sales of residential property Gains (Losses) on Extinguishment of Debt Gains (Losses) on Extinguishment of Debt Income (loss) from continuing operations Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest Statement of Stockholders' Equity [Abstract] Net income (loss) attributable to redeemable noncontrolling interest Net Income (Loss) Attributable to Redeemable Noncontrolling Interest Land assets from noncontrolling partner contributions Business Acquisition, Cost of Acquired Entity, Noncontrolling Partner Contribution Represents an increase in noncontrolling interest from noncash asset contribution(s) by the noncontrolling interest partner. Business and Organization [Abstract] -- None. No documentation exists for this element. -- Business and Organization [Table] Business and Organization [Table] Represents business and organization information of the entity. Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Business and Organization [Line Items] Business and Organization [Line Items] Investment across a range of real estate sectors over the past two decades Real Estate Investment Represents the amount invested across a range of real estate sectors by the entity over a period of time. Period over which the entity has made the investment across a range of real estate (in decades) Real Estate, Investment Period Represents the period over which the entity has invested across a range of real estate sectors. Number of primary business segments (in segments) Reporting Segments Number The number of reportable segments of the entity. Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Financing Receivable Information by Credit Quality Indicator [Axis] Credit Quality Indicator [Axis] Financing Receivable, by Credit Quality Indicator [Domain] Financing Receivable, by Credit Quality Indicator [Domain] Non-performing Loans Nonperforming Financing Receivable [Member] Loans Accounts, Notes, Loans and Financing Receivable [Line Items] Loans and other lending investments Loans and Other Lending Investments [Abstract] Total gross carrying value of loans Loans Receivable Net of Deferred Income Reflects the aggregate gross carrying amount of all categories of loans held in portfolio, after deducting deferred income, but before deducting the allowance for losses on loans. Reserve for loan losses Total carrying value of loans Loans Receivable, Net Other lending investments-securities Held-to-Maturity and Available-for-sale Securities This item represents investments in debt securities which are categorized as held-to-maturity and securities classified as available for sale. Total loans and other lending investments, net Loans and Other Lending Investments Amount representing an agreement for an unconditional promise by the maker to pay the Entity (holder) a definite sum of money at a future date, net of any write-downs taken for collection uncertainty on the part of the holder. Such amount may include accrued interest receivable in accordance with the terms of the note. The note also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among myriad other features and characteristics. In addition, amount also includes total debt and equity financial instruments including: securities held-to-maturity and securities available-for-sale. Recorded investment in loans Accrued interest Interest Receivable Fundings under existing loan commitments Amount received from principal repayments Carrying value of loans sold Loans, Sold Loans Carrying Value Represents the carrying value of loans sold during the period. Gross gain on sale realized Loans, Sold Income Represents the income recognized for carrying value of loans sold during the period. Charge-offs related to loans sold Loans, Sold Loans Charge Off Amount Represents the recognized charge-offs for carrying value of loans sold during the period. Mortgage loans gross carrying value Mortgage Loans on Real Estate, Carrying Amount of Mortgages Recorded charge-offs on mortgage loans Mortgage Loans on Real Estate, Write-down or Reserve, Amount Changes in the Company's reserve for loan losses Allowance for Loan Losses [Roll Forward] Reserve for loan losses at beginning of period Charge-offs Allowance for Loan Losses Write-Offs Reflects the amount of loans that have been removed, or charged off, from both loan receivables and the reserve for credit losses, typically because they are considered to be not salvageable or have been purchased by unconsolidated collection entities. Reserve for loan losses at end of period Property, Plant and Equipment [Abstract] Schedule of investments in net lease assets, at cost Schedule of Property Subject to or Available for Operating Lease [Table Text Block] Business and Organization Business and Organization [Text Block] This element represents nature of an entity's business, the major products or services it sells or provides and its principal markets. It also discloses background of the entity. Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Award Type [Axis] Award Type [Axis] Award Type [Domain] Award Type [Domain] Restricted stock units Restricted Stock Units (RSUs) [Member] Amended restricted stock units that vested on January 1, 2012 Restricted Stock Units Amended Units Vesting on January 1, 2012 [Member] Represents details pertaining to Restricted stock units amended units that vested on January 1, 2012. Service based restricted stock units that vested on February 17, 2012 Service-based Restricted Stock Units Vesting on February 17, 2012 [Member] Represents details pertaining to service-based restricted stock units that vested on February 17, 2012. Performance-based restricted stock units Performance Based Restricted Stock Units [Member] Represents details pertaining to performance-based restricted stock units. Service-based restricted stock units Service Based Restricted Stock Units [Member] Represents details pertaining to service-based restricted stock units. Market-condition based restricted stock units granted on December 19, 2008 Market Condition-based Restricted Stock Units Granted on December 19, 2008 [Member] Represents details pertaining to market-condition based restricted stock units granted on December 19, 2008. Service based restricted stock units with specified vesting dates Service-based Restricted Stock Units with Specified Vesting Terms [Member] Represents details pertaining to service-based restricted stock units with specified original vesting terms. CSE and restricted stock awards CSE and Restricted Stock Award [Member] CSE and Restricted Stock Award [Member] Maximum Maximum [Member] Schedule of Share-based Compensation Arrangement by Title of Individual [Axis] Schedule of Share-based Compensation Arrangement by Title of Individual [Axis] Reflects the pertinent provisions pertaining to equity-based compensation arrangement, by individual. Schedule of Share-based Compensation Arrangement by Title of Individual with Relationship to Entity [Domain] Schedule of Share-based Compensation Arrangement by Title of Individual with Relationship to Entity [Domain] Title of the individual (or the nature of the entity's relationship with the individual) who is party to the equity-based compensation arrangement. Employees Employees [Member] Represent employees of the entity. Company's chairman and chief executive officer Board of Directors Chairman and Chief Executive Officer [Member] Chairman is the leader of the entity's board of directors who presides over board meetings and other board activities and the chief executive officer is the highest ranking executive officer, who has ultimate managerial responsibility for the entity and who reports to the board of directors. Executives and other officers Executive and Other Officer [Member] Executives of the entity that are appointed to the position by the board of directors. Directors Director [Member] Former director Former Director [Member] Former Director [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Shares oustanding (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Vesting installments Stock-based Compensation, Vesting Installments Description of award terms as to how many shares or portion of an award are no longer contingent on satisfaction of either a service condition, market condition, or performance condition, thereby giving the employee the legal right to convert the award to a share. Vesting term Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Shares Issued for Settlement Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Shares Issued for Settlement The number of shares issued during the period to settle grants made on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Percentage of original units granted equal to amended units Share based Compensation Arrangement by Share based Payment Award Amended Units Equal to Percentage of the Original Units Granted Represents the percentage applied to original units granted to determine the amended units in the situation where the minimum stock price, as defined in the plan, is not achieved by a certain date. Shares awarded (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Shares Awarded The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Grant date fair value (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Grant Date Fair Value Aggregate intrinsic value for directors Share based Compensation Arrangement by Share based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value for Directors The aggregate intrinsic value of outstanding equity awards on equity-based plans excluding option plans for which the Company is contingently obligated to issue equity instruments or transfer assets to an director as calculated by applying the disclosed pricing methodology. Gross contributions made by the Company Defined Contribution Plan, Cost Recognized Earnings Per Share [Abstract] Reconciliation of income (loss) from continuing operations used in the basic and diluted EPS calculations Reconciliation of Income (Loss) from Continuing Operations [Abstract] -- None. No documentation exists for this element. -- Income (loss) from continuing operations Income from sales of residential property Preferred dividends Preferred Stock Dividends, Income Statement Impact Income (loss) from continuing operations attributable to iStar Financial Inc. and allocable to common shareholders, HPU holders and Participating Security Holders Income (Loss) from Continuing Operations Attributable to Parent and Available to Common Shareholders Hpu Holders and Participating Security Holders The income or loss from continuing operations during the period which is attributable to the parent and is available to common shareholders, HPU holders and Participating Security holders. Basic income from continuing operations allocable to Participating Security Holders Undistributed Earnings Allocated to Participating Securities Basic Basic earnings allocated (not distributed) to participating securities under the two-class method to the extent that participating securities may share in earnings as if all of the earnings for the period had been distributed. Diluted income from continuing operations allocable to Participating Security Holders Undistributed Earnings Allocated to Participating Securities Diluted Diluted earnings allocated (not distributed) to participating securities under the two-class method to the extent that participating securities may share in earnings as if all of the earnings for the period had been distributed. Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Common shares Common Stock [Member] HPU HPU [Member] This element represents HPU's (High Performance Units). Earnings per share allocable to common shares and HPU shares Class of Stock [Line Items] Numerator for basic earnings per share or HPU per share: Net Income (Loss) Available to Common Stockholders, Basic [Abstract] Income (loss) from continuing operations attributable to iStar Financial Inc. and allocable to common shareholders Income (Loss) from Continuing Operations, Attributable to Parent and Available to Common Shareholders The income or loss from continuing operations during the period which is attributable to the parent and is available to common shareholders. Income (loss) from continuing operations attributable to iStar Financial Inc. and allocable to HPU holders Income (Loss) from Continuing Operations, Attributable to Parent and Available to HPU Holders The income or loss from continuing operations during the period which is attributable to the parent and is available to HPU holders. Income (loss) from discontinued operations Income (Loss) from Discontinued Operations This element represents the overall income (loss) from a disposal group that is classified as a component 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. Gain from discontinued operations Net income (loss) allocable to common shareholders Net Income (Loss) Available to Common Stockholders, Basic Numerator for diluted earnings per share or HPU share: Net Income (Loss) Available to Common Stockholders, Diluted [Abstract] Income (loss) from continuing operations attributable to iStar Financial Inc. and allocable to equity holders Income (Loss) from Continuing Operations Attributable to Parent and Available to Common Shareholders and Hpu Holders, Diluted The income or loss during the period which is attributable to the parent and is available to common shareholders and HPU holders plus adjustments resulting from the assumption that dilutive convertible securities were converted, options or warrants were exercised or that other shares were issued upon the satisfaction of certain conditions. Income (loss) from discontinued operations Income (Loss) from Discontinued Operations, Diluted The overall income (loss) from a disposal group that is classified as a component of the entity, net of income tax which is used in the calculation of diluted earnings per share. Gain from discontinued operations Gain from discontinued operations diluted Gain (loss) after tax expense or benefit, not previously recognized and resulting from the sale of a business component, which is used in the calculation of diluted earnings per share. Net income (loss) attributable to iStar Financial Inc. and allocable to equity holders Net Income (Loss) Available to Common Stockholders, Diluted Denominator for basic and diluted earnings per share or HPU share: Denominator for Basic and Diluted Earnings Per Share or Hpu Share [Abstract] -- None. No documentation exists for this element. -- Weighted average common shares outstanding for basic earnings per common share (in shares) Weighted Average Number of Shares Outstanding, Basic Weighted average High Performance Units outstanding for basic and diluted earnings per share (in shares) Weighted Average Number of HPU Shares Outstanding Basic and Diluted The average number of shares of High Performance common stock (a separate class of stock) issued and outstanding that are used in calculating basic and diluted EPS. Add: effect of assumed shared issued under treasury stock method for restricted shares Incremental Common Shares Attributable to Share-based Payment Arrangements Add: effect of joint venture shares Incremental Common Shares Attributable to Joint Venture Shares Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of joint venture shares. Weighted average common shares outstanding for diluted earnings per common share Weighted Average Number of Shares Outstanding, Diluted Basic earnings per common share or HPU share: Earnings Per Share, Basic [Abstract] Income (loss) from continuing operations attributable to iStar Financial Inc. and allocable to equity holders (in dollars per share) Income (Loss) from Continuing Operations, Per Basic Share Income (loss) from discontinued operations (in dollars per share) Income (Loss) from Discontinued Operations, Net of Tax, Per Basic Share Gain from discontinued operations (in dollars per share) Discontinued Operation Gain (Loss) on Disposal of Discontinued Operation Net of Tax Per Basic Share The amount of gain or loss derived from the sale of discontinued operations during the period, net of related tax effect, per each share of common stock or unit outstanding during the reporting period. Net income (loss) attributable to iStar Financial Inc. and allocable to equity holders (in dollars per share) Earnings Per Share, Basic Diluted earnings per common share or HPU share: Earnings Per Share, Diluted [Abstract] Income (loss) from continuing operations attributable to iStar Financial Inc. and allocable to equity holders (in dollars per share) Income (Loss) from Continuing Operations, Per Diluted Share Income (loss) from discontinued operations (in dollars per share) Income (Loss) from Discontinued Operations, Net of Tax, Per Diluted Share Gain from discontinued operations (in dollars per share) Discontinued Operation Gain (Loss) on Disposal of Discontinued Operation, Net of Tax Per Diluted Share The amount of gain or loss derived from the sale of discontinued operations during the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Net income (loss) attributable to iStar Financial Inc. and allocable to equity holders (in dollars per share) Earnings Per Share, Diluted Investments, All Other Investments [Abstract] Schedule of Equity Method Investments [Table] Schedule of Equity Method Investments [Table] Schedule of Equity Method Investment, Equity Method Investee, Name [Axis] Equity Method Investee, Name [Axis] Equity Method Investee, Name [Domain] Equity Method Investee, Name [Domain] Oak Hill Advisors Oak Hill Advisors [Member] Represents information pertaining to Oak Hill Advisors, an equity method investment of the entity. LNR and certain commercial mortgage backed securities and collateralized debt obligation trusts that are considered VIEs LNR Property Corporation and Considered Variable Interest Entity [Member] Represents LNR Property Corporation and certain commercial mortgage backed securities and collateralized debt obligation trusts that are considered VIEs. LNR Property LLC ("LNR") LNR Property LLC [Member] Represents LNR Property LLC which is a servicer and a special servicer of commercial mortgage loans and CMBS and a diversified real estate, finance and management company. Madison Funds Madison Funds [Member] Represents information pertaining to Madison Funds. Oak Hill Funds Oak Hill Funds [Member] Represents information pertaining to Oak Hill funds, an equity method investment of the entity. OREO/REHI Investments Real Estate Investment Including OREO and REHI [Member] Represents real estate investment including OREO and REHI. Other Equity Method Investments Other Equity Method Investments [Member] Represents information pertaining to other equity method investments not listed separately. Equity method investments Schedule of Equity Method Investments [Line Items] Carrying value of equity method investments Equity Method Investments Equity in earnings Investments Other Investments Other Represents other investments not otherwise specified in the taxonomy. Total other investments, carrying value Other Investments Included within earnings from equity method investments Included within Earnings from Equity Method Investments Included within Earnings from Equity Method Investments Income Statement Equity Method Investment, Summarized Financial Information, Income Statement [Abstract] Total revenue Equity Method Investment, Summarized Financial Information, Revenue Income tax expense (benefit) Equity Method Investment, Summarized Financial Information, Income Tax Expense Benefit The amount of income tax expense (benefit) reported by an equity method investment of the entity. Net income attributable to LNR Equity Method Investment, Summarized Financial Information, Net Income (Loss) iStar's ownership percentage Equity Method Investment, Ownership Percentage Balance Sheet Equity Method Investment Summarized Financial Information Balance Sheet [Abstract] -- None. No documentation exists for this element. -- Total assets Equity Method Investment, Summarized Financial Information, Assets Total debt Equity Method Investment, Summarized Financial Information, Noncurrent Liabilities Total liabilities Equity Method Investment, Summarized Financial Information, Liabilities Noncontrolling interests Equity Method Investment, Summarized Financial Information, Noncontrolling Interest LNR Property LLC equity Equity Method Investment, Summarized Financial Information, Equity or Capital Total VIE trust assets Variable Interest Entities of Equity Method Investment Summarized Financial Information Assets The amount of assets reported by variable interest entities of an equity method investment of the entity. Total VIE trust liabilities Variable Interest Entities of Equity Method Investment Summarized Financial Information Liabilities The amount of liabilities reported by variable interest entities of an equity method investment of the entity. Servicing fee revenue Equity Method Investment Servicing Fee Revenue The amount of servicing fee revenue reported by an equity method investment of the entity and eliminated upon consolidation. Payments of Distributions to Affiliates Payments of Distributions to Affiliates Income from sales of investment Equity Method Investment Summarized Financial Information, Income (Loss) from Sale of Investment Represents the amount of income (loss) from the sale of an investment reported by an equity method investee of the entity. Income from sales of residential property Equity Method Investment Summarized Financial Information Income (Loss) from Sale of Residential Property Represents the amount of income (loss) from the sale of residential property reported by an equity method investee of the entity. Fair Values Fair Value Disclosures [Text Block] Schedule of Financing Receivable, Troubled Debt Restructurings [Table] Schedule of Financing Receivable, Troubled Debt Restructurings [Table] Financing Receivable, Troubled Debt Restructurings [Axis] Financing Receivable, Troubled Debt Restructuring [Axis] Financing Receivable, Troubled Debt Restructurings [Domain] Financing Receivable, Troubled Debt Restructuring [Domain] Senior mortgages troubled debt restructurings Senior Mortgage Troubled Debt Restructurings Subsequently Defaulted [Member] Represents senior mortgages under troubled debt restructurings that subsequently defaulted during the period. Performing senior mortgages Performing First Mortgage [Member] Represents the performing loans secured by real property that have a first (highest) lien on such property in the event of default by the borrower. Performing First Mortgage - Minimum [Member] Performing First Mortgage - Minimum [Member] Performing First Mortgage - Minimum Performing First Mortgage With Rates Reduced [Member] Performing First Mortgage With Rates Reduced [Member] Performing First Mortgage With Rates Reduced Non-performing senior mortgage with maturity of 0.7 years Non-Performing First Mortgage with Maturity of 0 point 7 Years [Member] Represents the non-performing loan with maturity of 0.7 years, secured by real property that has a first (highest) lien on such property in the event of default by the borrower. Non-performing senior mortgage with maturity of 0.3 years Non-Performing First Mortgage with Maturity of 0 point 3 Year [Member] Represents the non-performing loan with maturity of 0.3 years, secured by real property that has a first (highest) lien on such property in the event of default by the borrower. Non-Performing First Mortgage with Recorded Chargeoffs and Rate Reductions [Member] Non-Performing First Mortgage with Recorded Chargeoffs and Rate Reductions [Member] Non-Performing First Mortgage with Recorded Chargeoffs and Rate Reductions Non-Performing First Mortgage with Recorded Chargeoffs and Rate Reductions - Minimum [Member] Non-Performing First Mortgage with Recorded Chargeoffs and Rate Reductions - Minimum [Member] Non-Performing First Mortgage with Recorded Chargeoffs and Rate Reductions - Minimum Non-Performing First Mortgage with Recorded Chargeoffs and Rate Reductions - Maximum [Member] Non-Performing First Mortgage with Recorded Chargeoffs and Rate Reductions - Maximum [Member] Non-Performing First Mortgage with Recorded Chargeoffs and Rate Reductions - Maximum Minimum [Member] Performing First Mortgage - Maximum [Member] Performing First Mortgage - Maximum Troubled debt restructurings Financing Receivable, Modifications [Line Items] Number of loans Finance Receivable, Troubled Loans The number of financing receivables that have been modified by troubled debt restructurings. Pre-modification recorded investment Financing Receivable, Pre Modification Recorded Investment The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings before the financing receivable has been modified. Post-modification recorded investment Financing Receivable, Post Modification Recorded Investment The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings after the financing receivable has been modified. Outstanding recorded investment Financing Recivable, Outstanding Recorded Investment The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings. Trouble debt restructuring time period Finance Receivable, Trouble Debt Restructuring Time Period Represents the weighted average maturity period of loans. Financing receivable modifications weighted average maturity period of loans whose rate is reduced Financing Receivable Modifications Weighted Average Maturity Period of Loans Whose Rate is Reduced Represents the weighted average maturity period of loans for which the rate was reduced. Financing receivable, charge-offs Financing Receivable, Allowance for Credit Losses, Write-downs Variable rate basis of loans Financing Receivable Modifications Description of Variable Rate Basis of Loans Represents the reference rate for the variable rate of the loans under financing receivable modifications. Basis spread on variable rate of loans after reduction Financing Receivable Modifications Basis Spread on Variable Rate of Loans After Reduction The percentage points added to the reference rate to compute the variable rate on the loans after reduction under financing receivable modifications. Basis spread on variable rate of loans before reduction Financing Receivable Modifications Basis Spread on Variable Rate of Loans Before Reduction The percentage points added to the reference rate to compute the variable rate on the loans before reduction under financing receivable modifications. Unfunded commitments Financing Receivable Modifications Unfunded Commitments Represents the amount of the outstanding unfunded commitment related to financing receivables that has been modified by troubled debt restructurings. Debt Disclosure [Abstract] Debt Obligations, net Debt Disclosure [Text Block] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Debt Instrument [Line Items] Debt Instrument [Line Items] Aggregate amounts of principal maturities of long-term debt Long-term Debt, Fiscal Year Maturity [Abstract] Remainder of 2012 Long Term Debt Maturities Repayments Of Principal In Remainder Of Fiscal Year Amount of long-term debt maturing within the remainder of the fiscal year following the date of the most recent balance sheet presented in the financial statements. 2014 Long Term Debt Maturities Repayments Of Principal In Second Full Fiscal Year 1 Amount of long-term debt maturing within the second full fiscal year following the date of the most recent balance sheet presented in the financial statements. 2015 LongTerm Debt Maturities Repayments Of Principal In Third Full Fiscal Year Amount of long-term debt maturing within the third full fiscal year following the date of the most recent balance sheet presented in the financial statements. 2016 Long Term Debt Maturities Repayments Of Principal In Fourth Full Fiscal Year Amount of long-term debt maturing within the fourth full fiscal year following the date of the most recent balance sheet presented in the financial statements. Thereafter Long Term Debt Maturities Repayments Of Principal After Fourth Full Fiscal Year Amount of long-term debt maturing after the fourth full fiscal year following the date of the most recent balance sheet presented in the financial statements. Total debt obligations Unamortized debt discounts, net Debt Instrument, Unamortized Discount Total long-term debt obligations, net Long-term Debt Schedule of Financing Receivable, Recorded Investment, Credit Quality Indicator [Table] Schedule of Financing Receivable, Recorded Investment, Credit Quality Indicator [Table] Performing Loans Performing Financing Receivable [Member] Recorded Investments in loans, presented by class and by credit quality, as indicated by risk rating Financing Receivable, Recorded Investment [Line Items] Performing Loans Weighted Average Risk Ratings Weighted Average Risk Ratings Represents the weighted average risk rating of the instrument. Schedule of other investments and its proportionate share of results for equity method investments Schedule of Equity Method Investments [Table Text Block] Schedule of summarized Income Statements Schedule of Equity Method Investment, Summarized Income Statements [Table Text Block] Tabular disclosure of latest available summarized Income Statements of equity method investee. Schedule of summarized Balance Sheets Schedule of Equity Method Investment Summarized Balance Sheets [Table Text Block] Tabular disclosure of latest available summarized Balance Sheets of equity method investee. Schedule of Real Estate Properties [Table] Schedule of Real Estate Properties [Table] Asbury Partners Asbury Partners [Member] Asbury Partners [Member] Tanger Outlets Tanger Outlets [Member] Tanger Outlets [Member] Real Estate Properties [Axis] Real Estate Property Ownership [Axis] Real Estate Properties [Domain] Real Estate Properties [Domain] Real Estate Held for Investment (REHI) Real Estate Held for Investment [Member] Represents the Real Estate Investment segment that includes all of the Company's activities related to the operations, repositioning and ultimate disposition of distressed REHI and OREO properties. Other Real Estate Owned (OREO) Other Real Estate Owned [Member] Represents other real estate owned (OREO). Real Estate Properties Real Estate Held for Investment Net and Other Real Estate Owned [Line Items] -- None. No documentation exists for this element. -- Aggregate estimated fair value of properties acquired through foreclosure Real Estate Acquisitions Through Foreclosures or Deed in Lieu of Foreclosure Amount of real estate investments acquired through foreclosure or by deed-in-lieu of foreclosure during the period. Noncash Reclassifcation Noncash Reclassifcation Noncash reclassifcation between OREO and REHI due to management intention to either hold the properties over a longer period or to market them for sale in the near term. New Investment New Investment Number of new investment(s) made during the reporting period Contributed cost of land Business Acquisition, Cost of Acquired Equity, Historical Cost of Land Business Acquisition, Cost of Acquired Equity, Historical Cost of Land Percentage of ownernship acquired Business Acquisition, Percentage of Ownernship Acquired Business Acquisition, Percentage of Ownernship Acquired Real Estate Held for Investment, net Real Estate Held Investment [Abstract] -- None. No documentation exists for this element. -- Land held for investment and development Land Available for Investment and Development Carrying amount of land available for investment and development. Operating property Real Estate Operating Property [Abstract] -- None. No documentation exists for this element. -- Buildings and improvements Buildings and Improvements, Gross Land Land Less: accumulated depreciation and amortization Real Estate Held-for-Investment Accumulated Depreciation The amount of accumulated depreciation and amortization recorded on REHI assets as of the balance sheet date. Real estate held for investment, net Real Estate Held-for-Investment Carrying amount as of the balance sheet date of real estate property obtained through foreclosure proceedings or defeasance in full or partial satisfaction of a debt arrangement which is intended to be held, operated or developed for a period of at least twelve months. REHI operating income and expenses REHI Operating Income and Expenses [Abstract] -- None. No documentation exists for this element. -- REHI operating income Revenue from Real Estate Held for Investment Assets The aggregate revenue from real estate held for investment assets during the reporting period. REHI operating expenses Operating Expenses from Real Estate Held for Investment Assets This element represents the total of the costs related to real estate held for investment assets. Other Real Estate Owned Other Real Estate, Foreclosed Assets, and Repossessed Assets [Abstract] Carrying value of OREO assets sold Other Real Estate Owned Sold Aggregate Carrying Value Represents the carrying value of OREO assets that was sold during the period. Net impairment charges recorded to OREO properties Impairment of Other Real Estate The charge against earnings in the period to reduce the carrying amount of other real property to fair value. Net expenses related to holding costs for OREO properties Other Real Estate Owned Holding Costs Represents net expenses related to holding costs for other real estate owned properties. Noncontrolling Interest, Description Noncontrolling Interest, Description Subsequent Events [Abstract] Subsequent Events Subsequent Events [Text Block] Document and Entity Information [Abstract] -- None. No documentation exists for this element. -- Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Document Type Document Type Document Period End Date Document Period End Date Amendment Flag Amendment Flag Current Fiscal Year End Date Current Fiscal Year End Date Entity Current Reporting Status Entity Current Reporting Status Entity Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Segment Reporting Segment Reporting Disclosure [Text Block] Net Lease Assets, net Property, Plant and Equipment Disclosure [Text Block] Schedule of financial measures for each segment based on which performance is evaluated Schedule of Segment Reporting Information, by Segment [Table Text Block] Reconciliation of segment profit (loss) to income (loss) from continuing operations Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] Other Assets and Other Liabilities [Abstract] -- None. No documentation exists for this element. -- Deferred expenses and other assets, net Deferred Expenses and other Assets Net [Abstract] -- None. No documentation exists for this element. -- Other receivables Other Receivables Leasing costs, net Deferred Costs, Leasing, Net Deferred financing fees, net Deferred Finance Costs, Net Net lease in-place lease intangibles, net Finite-Lived Intangible Asset, Acquired-in-Place Leases Prepaid expense, current and noncurrent Prepaid Expense Corporate furniture, fixtures and equipment, net Furniture Fixtures and Leasehold Improvements, Net Net amount, at the balance sheet date, of long-lived, depreciable assets commonly used in offices that are additions or improvements to assets held under lease arrangement. Other assets Other Assets Deferred expenses and other assets, net Deferred Expenses and Other Assets Net This element represents net amount of other deferred expenses and other assets capitalized at the end of the reporting period. Accumulated amortization of deferred financing fees Accumulated Amortization, Deferred Finance Costs Accumulated amortization on net lease intangibles Finite-Lived Intangible Assets, Accumulated Amortization Amortization expense related to net lease intangibles Amortization of Intangible Assets Accumulated amortization on leasing costs Deferred Costs, Leasing, Accumulated Amortization Accumulated depreciation on corporate furniture, fixtures and equipment Accumulated Depreciation Furniture Fixtures and Leasehold Improvements The cumulative amount of depreciation, related to leasehold improvements, corporate furniture, fixtures and equipment that has been recognized in the income statement. Accounts payable, accrued expenses and other liabilities Accounts Payable and Accrued Liabilities [Abstract] Accrued interest payable Interest Payable Accrued expenses Accrued Liabilities Other than Interest Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include property accounts payable, legal liabilities, loan costs, general and administrative liabilities, but exclude interest. Property taxes payable Accrual for Taxes Other than Income Taxes Security deposits and other investment deposits Security Deposits and Other Investment Deposits Represents security deposits and other investment deposits as of the balance sheet date. Unearned operating lease income Deferred Revenue, Leases, Net Derivative liabilities Derivative Liabilities Other liabilities Other Liabilities Accounts payable, accrued expenses and other liabilities Accounts Payable and Accrued Liabilities Schedule of Deferred Tax Assets [Table] Schedule of Deferred Tax Assets [Table] Tabular disclosure of the components of net deferred tax asset recognized in the entity's statement of financial position, including the total of all deferred tax assets and the total valuation allowance recognized for deferred tax assets. Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Taxable REIT Subsidiaries (TRSs) Taxable REIT Subsidiaries [Member] Represents the taxable REIT subsidiaries ("TRSs") through which the entity is engaged in various real estate related opportunities, including but not limited to managing various investments in equity affiliates and managing activities related to certain foreclosed assets. Deferred Tax Asset Schedule of Deferred Tax Assets [Line Items] -- None. No documentation exists for this element. -- Deferred tax assets Deferred Tax Assets, Gross Valuation allowance Deferred Tax Assets, Valuation Allowance Deferred tax assets, net Deferred Tax Assets, Net of Valuation Allowance Real estate asset basis differences Real Estate Asset Basis Differences The difference in the tax basis and carrying amounts of real estate assets of owned assets, before tax effects. Net operating loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards Investment basis differences Investment Basis Differences The difference in the tax basis and carrying amounts of real estate assets of investments, before tax effects. Schedule of debt obligations Schedule of Debt [Table Text Block] Schedule of future scheduled maturities of outstanding long-term debt obligations, net Schedule of Maturities of Long-term Debt [Table Text Block] Schedule of carrying value of encumbered assets by asset type Schedule of Encumbered Assets [Table Text Block] Tabular disclosure of assets which were encumbered with mortgages or pledged as collateral for borrowings at the end of the reporting period(s). Long-term Incentive Plan 2006 and 2009 [Member] Long-term Incentive Plan 2006 and 2009 [Member] Represents information pertaining to 2006 and 2009 Long-term Incentive Plan of the entity. Stock-based compensation expense Unrecognized compensation cost Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized Weighted-average period to recognize the unrecognized compensation cost (in years) Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition Shares available for issuance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Other Assets and Other Liabilities Other Assets and Other Liabilities Disclosure [Text Block] This element may be used as a single block of text to encapsulate the entire disclosure for other assets and other liabilities including data and tables. Summary of Significant Accounting Policies [Abstract] -- None. No documentation exists for this element. -- Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Schedule of the Company's loans and other lending investments by class Schedule of Loans and Other Lending Investments [Table Text Block] Tabular disclosure of loans and other lending investments by class. Includes the gross carrying value of a loan by class, reserve for loan losses, and the net carrying value as of the Balance Sheet date. Schedule of changes in the Company's reserve for loan losses Allowance for Credit Losses on Financing Receivables [Table Text Block] Schedule of recorded investment in loans and associated reserve for loan losses Schedule of Investment in Loans and Associated Reserve for Loan Losses [Table Text Block] Tabular disclosure of the Company's recorded investment in loans and the associated reserve for loan losses. Schedule of investment in performing loans, presented by class and by credit quality, as indicated by risk rating Financing Receivable Credit Quality Indicators [Table Text Block] Schedule of recorded investment in loans, aged by payment status and presented by class Past Due Financing Receivables [Table Text Block] Schedule of recorded investment in impaired loans, presented by class Impaired Financing Receivables [Table Text Block] Schedule of average recorded investment in impaired loans and interest income recognized, presented by class Impaired Financing Receivables Average Recorded Investment and Interest Income Recognized [Table Text Block] Tabular disclosure by class of the average recorded investment in impaired loans and the related interest income recognized. Schedule of troubled debt restructurings, presented by class Troubled Debt Restructurings on Financing Receivables [Table Text Block] Schedule of troubled debt restructurings that subsequently defaulted Schedule of Loans Modified as TDR Within Previous Twelve Months Subsequently Defaulted During Current Period [Table Text Block] Tabular disclosure of loans modified as a troubled debt restructuring within the previous twelve months that subsequently defaulted. Income Statement [Abstract] Revenues: Revenues [Abstract] Interest income Interest and Fee Income, Loans, Commercial Operating lease income Operating Leases, Income Statement, Lease Revenue Other income Other Income Total revenues Revenues Costs and expenses: Costs and Expenses [Abstract] Interest expense Interest Expense Operating costs-net lease assets Owned Property Management Costs Operating costs-REHI and OREO Cost of Real Estate Held-for-Sale and Other Real Estate Owned This element represents the aggregate of the holding and operating costs related to real estate held for investment and the net costs related to other real estate owned. Depreciation and amortization General and administrative General and Administrative Expense Impairment of assets Other expense Other Expenses Total costs and expenses Costs and Expenses Income (loss) before earnings from equity method investments and other items Income (Loss) from Continuing Operations before Income (Loss) from Equity Method Investments and Other Items This element represents the income (loss) from continuing operations before income (loss) from equity method investments, gains (losses) on early extinguishment of debt, and other items. Gain (loss) on early extinguishment of debt, net Earnings from equity method investments Income (loss) from continuing operations before income taxes Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Income tax (expense) benefit Income (loss) from discontinued operations Net income (loss) Net income (loss) attributable to iStar Financial Inc. Net Income (Loss) Attributable to Parent Net (income) loss allocable to HPU holders and Participating Security holders Net Income (Loss) Available to HPU Holders and Participating Security Holders, Basic Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period) available to HPU holders and Participating Security holders. Per common share data: Per Common Share Data [Abstract] Income (loss) attributable to iStar Financial Inc. from continuing operations: Income (Loss) from Continuing Operations Attributable to Parent [Abstract] Basic (in dollars per share) Diluted (in dollars per share) Net income (loss) attributable to iStar Financial Inc.: Basic (in dollars per share) Diluted (in dollars per share) Weighted average number of common shares-basic (in shares) Weighted average number of common shares-diluted (in shares) Per HPU share data: Per HPU Share Data [Abstract] Income (loss) attributable to iStar Financial Inc. from continuing operations: Income (Loss) from Continuing Operations Attributable to Parent (HPU) Abstract -- None. No documentation exists for this element. -- Basic (in dollars per share) Income (Loss) from Continuing Operations, Per Basic HPU Share The amount of income (loss) from continuing operations per each outstanding share of High Performance common stock (a separate class of stock) during the reporting period. Diluted (in dollars per share) Income (Loss) from Continuing Operations, Per Diluted HPU Share The amount of income (loss) from continuing operations available to each outstanding share of High Performance common stock (a separate class of stock) and dilutive equivalents outstanding during the reporting period. Net income (loss) attributable to iStar Financial Inc.: Net Income (Loss) Attributable to Parent [Abstract] Basic (in dollars per share) Earnings Per HPU Share, Basic The amount of net income or loss for the period per each outstanding share of High Performance common stock (a separate class of stock) during the reporting period. Diluted (in dollars per share) Earnings Per HPU Share, Diluted The amount of net income or loss for the period per each outstanding share of High Performance common stock (a separate class of stock) and dilutive equivalents outstanding during the reporting period. Weighted average number of HPU shares-basic and diluted (in shares) Series D Series D Preferred Stock [Member] Series E Series E Preferred Stock [Member] Series F Series F Preferred Stock [Member] Series G Series G Preferred Stock [Member] Series I Series I Preferred Stock [Member] Outstanding nonredeemable series I preferred stock or outstanding series I preferred stock. Classified within stockholders' equity if nonredeemable or redeemable solely at the option of the issuer. Classified within temporary equity if redemption is outside the control of the issuer. Cumulative Redeemable Preferred Stock Preferred Stock Series D, E, F, G and I, liquidation preference per share (in dollars per share) Preferred Stock, Liquidation Preference Per Share Shares Issued and Outstanding (in shares) Preferred Stock Shares Issued and Outstanding Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury) and held by stockholders. May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt and preferred shares that have been repurchased. Par Value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Rate per Annum of the $25.00 Liquidation Preference (as a percent) Preferred Stock, Dividend Rate, Percentage Equivalent to Fixed Annual Rate (in dollars per share) Preferred Stock, Dividend Rate, Per-Dollar-Amount Number of days in year used in the computation of preferred stock dividends for any partial dividend period Preferred Stock, Dividends Computation of Dividends Payable for Any Partial Dividend Period, Number of Days in Year Represents the number of days in year used in the computation of preferred stock dividends for any partial dividend period. Number of months used in the computation of preferred stock dividends for any partial dividend period Preferred Stock, Dividends Computation of Dividends Payable for Any Partial Dividend Period, Number of Months Represents the number of months used in the computation of preferred stock dividends for any partial dividend period. Number of days in month, dividends computation of dividends payable for any partial dividend period Preferred Stock, Dividends Computation of Dividends Payable for Any Partial Dividend Period, Number of Days in Month Represents the number of days in month used in the computation of preferred stock dividends for any partial dividend period. Number of days prior to dividend payment date that Board of Directors may elect to designate as the payment date Preferred Stock Dividends, Number of Days Prior to Dividend Payment Date That Board of Directors May Elect to Designate as Payment Date Represents the number of days prior to dividend payment date that Board of Directors may elect to designate as the payment date. Dividends declared and paid Dividends declared and paid Aggregate dividends declared and paid during the period for each share of common stock outstanding. Amount of preferred dividends in arrears Preferred Stock, Amount of Preferred Dividends in Arrears Schedule of Financing Receivables Past Due [Table] Schedule of Financing Receivables Past Due [Table] Recorded investment in loans, aged by payment status and presented by class Financing Receivable, Recorded Investment, Past Due [Line Items] Current Financing Receivable, Recorded Investment, Current Less Than and Equal to 90 Days Financing Receivable Recorded Investment Equal to Less than 90 Days Past Due Financing receivables that are equal to or less than 90 days past due. Greater Than 90 Days Financing Receivable Recorded Investment Greater than 90 Days Past Due Financing receivables that are greater than 90 days past due. Total Past Due Financing Receivable, Recorded Investment, Past Due Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Securities Excluded from Computation of Earnings Per Share, by Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Joint venture shares Joint Venture Shares [Member] Incremental common shares attributable to joint venture shares that were not included in diluted earnings per share (EPS) because to do so would increase EPS amounts or decrease loss per share amounts during the period presented. Stock options Stock Options [Member] Anti-dilutive shares Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Anti-dilutive shares Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Schedule of deferred expenses and other assets, net Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block] Schedule of accounts payable, accrued expenses and other liabilities Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] Schedule of deferred tax assets Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Property Subject to or Available for Operating Lease, by Major Property Class [Table] Property Subject to or Available for Operating Lease, by Major Property Class [Table] Secured Term Loan LIBOR plus 4.50% due 2014 Secured Term Loan LIBOR Plus 4 point 50 Percent Due 2014 [Member] Represents the secured term loan bearing interest at LIBOR plus 4.50 percent which matures in 2014. Major Property Class [Axis] Major Property Class [Axis] Major Property Class [Domain] Major Property Class [Domain] Facilities and improvements Facilities and Improvements [Member] Represents facilities and improvements, a lease asset of the entity. Land and land improvements Land and Land Improvements [Member] Net Lease Assets Property Subject to or Available for Operating Lease [Line Items] Net lease assets, gross Property Subject to or Available for Operating Lease, Gross Less: accumulated depreciation Property Subject to or Available for Operating Lease, Accumulated Depreciation Net lease assets, net Property Subject to or Available for Operating Lease, Net Sale of portfolio leased assets (in lease assets) Property Subject to or Available for Operating Lease Number of Units Sold The number of units (items of property) sold under operating lease arrangements. Property subject to or available for operating lease sold, aggregate, carrying value Property Subject to or Available for Operating Lease Sold, Aggregate, Carrying Value Represents the carrying value of the property subject to or available for lease that was sold during the period. Net gain on sale of net lease assets Gain (Loss) on Sale of Leased Assets, Net, Operating Leases Impairment charges on net lease assets Property Subject to or Available for Operating Lease Net Impairment Charges The amount of impairment on net lease assets recognized during the period. Impairment charges on net lease assets recorded in income (loss) from discontinued operations Property Subject to or Available for Operating Lease, Net Impairment Charges Recorded in Income (Loss) from Discontinued Operation The amount of impairment on net lease assets recognized during the period recorded in income (loss) from discontinued operations. Customer expense reimbursements Tenant Reimbursements Allowance for doubtful accounts related to tenant receivables including deferred operating lease income receivable Allowance for Doubtful Accounts Related to Tenant Receivables Represents the allowance for doubtful accounts related to tenant receivables, including deferred operating lease income receivable. Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Statement, Business Segments [Axis] Business Segments [Axis] Segment [Domain] Segment [Domain] Real Estate Lending Real Estate Lending [Member] Represents the Real Estate Lending segment that includes all of the Company's activities related to senior and mezzanine real estate debt and corporate capital investments. Net Leasing Net Leasing [Member] Represents the Net Leasing segment that includes all of the company's activities related to the ownership and leasing of corporate facilities. Real Estate Investment Corporate/Other Corporate and Other [Member] Segment Reporting Segment Reporting Information [Line Items] Total revenue Operating costs Operating Costs and Expenses Direct segment profit Direct Segment Profit (Loss) Represents the amount of direct profit or loss during the period recognized by the reportable segment. Allocated interest expense Allocated general and administrative(3) General and Administrative Expense Excluding Stock-based Compensation Expense The aggregate total of expenses of managing and administering the affairs of the entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line, excluding stock-based compensation expense. Segment profit (loss) Other significant non-cash items: Segment Reporting Other Significant Noncash Items [Abstract] -- None. No documentation exists for this element. -- Capitalized expenditures Real Estate and Accumulated Depreciation Costs, Capitalized Subsequent to Acquisition Carrying amount as of the balance sheet date of costs that were capitalized after acquisition, including property improvements and carrying costs (for example, real estate taxes and insurance), but excluding the initial purchase price. Total assets Assets Debt Instrument Minimum Aggregate Cumulative Amortization Payments by Date [Axis] Debt Instrument Minimum Aggregate Cumulative Amortization Payments by Date [Axis] Information about the minimum aggregate cumulative amortization payments by date under the terms of the debt instrument. Debt Instrument Minimum Aggregate Cumulative Amortization Payments by Date [Domain] Debt Instrument Minimum Aggregate Cumulative Amortization Payments by Date [Domain] Date in which the minimum amount of aggregate cumulative amortization payments must be made under the terms of the debt instrument. Maturing on or before June 2012 Debt Instrument Minimum Aggregate Cumulative Amortization Payment on or before June 2012 [Member] Represents the minimum aggregate cumulative amortization payment on or before June 30, 2012. Maturing on or before December 31, 2012 Debt Instrument Minimum Aggregate Cumulative Amortization Payment on or before December 2012 [Member] Represents the minimum aggregate cumulative amortization payment on or before December 31, 2012. Maturing on or before June 2013 Debt Instrument Minimum Aggregate Cumulative Amortization Payment on or before June 2013 [Member] Represents the minimum aggregate cumulative amortization payment on or before June 28, 2013. 2012 Secured Credit Facilities Secured Credit Facilities, 2012 [Member] Represents the secured credit facility of the entity entered into in 2012. Secured 2012 Tranche A-1 Facility Due 2016 Secured Credit Facilities Tranche A-1 Facility Due March, 2016 [Member] Represents the Secured Tranche A-1 Facility of the entity maturing in March 2016. Secured 2012 Tranche A-2 Facility Due 2017 Secured Credit Facilities Tranche A-2 Facility Due March, 2017 [Member] Represents the Secured Tranche A-2 Facility of the entity maturing in March 2017. Unsecured Line of credit due June 2012 Unsecured Credit Facility Line of Credit June 2012 [Member] Unsecured Line of credit due June 2012 debt instrument of the entity. Secured 2011 Tranche A-2 Facility Due 2014 Secured Credit facilities Tranche A2 Facility Due June 2014 [Member] Secured Tranche A-2 Facility debt instrument of the entity, which is due in 2014. 2011 Secured Credit Facilities Secured Credit Facilities, 2011 [Member] Represents the secured credit facility of the entity entered into in 2011. Secured 2011 Tranche A-1 Facility Due 2013 Secured Credit Facilities Tranche A1 Facility Due June 2013 [Member] Represents the Secured Tranche A-1 Facility debt instrument of the entity, which is due in 2013. Secured term loans collateralized by net lease assets due through 2026 Secured Term Loans Collateralized by Net Lease Assets Due Through 2026 [Member] Secured Term Loans Collateralized by net lease assets due through 2026 debt instrument of the entity. Refinanced Secured Term Loan Rate One Refinanced Secured Term Loan Rate One [Member] Refinanced Secured Term Loan Rate One [Member] Refinanced Secured Term Loan Rate Two Refinanced Secured Term Loan Rate Two [Member] Refinanced Secured Term Loan Rate Two [Member] Unsecured Credit Facilities Unsecured Credit Facilities [Member] Represents the unsecured credit facility of the entity. Secured Notes 10.0% senior notes due 2014 Secured Notes 10 point 0 Percent Senior Notes Due June 2014 [Member] Secured Notes 10.0% senior notes due 2014 debt instrument of the entity. Unsecured Notes 9.0% senior notes Unsecured Notes Nine Percent Senior Notes Due June 2017 [Member] Unsecured Notes Nine Percent Senior Notes Due June 2017 [Member] Senior unsecured notes with various maturities ranging from March 2012 to October 2014 Senior Unsecured Notes Due, March 2012 to October 2014 [Member] Represents the senior unsecured notes with various maturities ranging from March 2012 to October 2014. Unsecured Notes 5.50% senior notes Unsecured Notes 5 point 50 Percent Senior Notes Due June 2012 [Member] Unsecured Notes 5.50% due June 2012 senior notes debt instrument of the entity. Unsecured Notes 5.15% senior notes Unsecured Notes 5 Point 15 Percent Senior Notes Due March 2012 [Member] Unsecured Notes 5.15% due March 2012 senior notes debt instrument of the entity. Secured Credit Facility Secured Credit Facilities [Member] Represents the secured credit facility of the entity. Debt Instrument [Line Items] Variable interest rate, basis Debt Instrument, Description of Variable Rate Basis Variable interest rate, spread (as a percent) Debt Instrument, Basis Spread on Variable Rate Number of tranches Number of Tranches under Term Loans Represents the number of tranches under term loans. Percentage of par credit facilities were issued at Line of Credit Facility Issue Price as Percentage of Principal Amount Represents the percentage of principal amount used in the computation of issue price for the line of credit facility. Minimum aggregate cumulative amortization payment Debt Instrument, Minimum Aggregate Cumulative Amortization Payment Represents the minimum aggregate cumulative amortization payment. Periods following the initial payment of amortization that additional amortization payments are due Debt Instrument, Amortization Payment Periods after Initial Payment Represents the periods that amortization payments are due following the initial payment. Maximum commencement period of amortization after repayment of the Tranche A-1 Facility Debt Instrument Commencement Period of Amortization Maximum after Repayment of First Term Loan Facility Represents the maximum commencement period of amortization after repayment of the first term loan facility. Amortization payment due on or before each six month anniversary after the repayment of the Tranche A-1 facility Debt Instrument, Amortization Payment after Initial Payment Represents the amount of the amortization payment due on or before each period following the initial payment. Short-term Debt, Refinanced, Description Short-term Debt, Refinanced, Description Long-Term Debt, Refinanced Long-Term Debt, Refinanced Principal amount of long-term obligation(s) that have been refinanced. Number of net lease assets sold (in lease assets) Amount of debt extinguished Exchange of Debt Amount Gross amount of debt exchanged for other debt instruments. Stated interest rate (as a percent) Debt Instrument, Interest Rate, Stated Percentage Effective interest rate (as a percent) Debt Instrument, Interest Rate at Period End Percentage of issue price to principal amount Debt Instrument, Issue Price as Percentage of Principal Amount Represents the issuance amount, as a percent of principal amount of notes issued. Loans and other lending investments encumbered assets Loans and Other Lending Encumbered Investments Represents the amount of loans and other lending investments which are owned by one party but subject to legal claims by another party. Loans and other lending investments unencumbered assets Loans and Other Lending Investments Unencumbered Assets Represents the amount of loans and other lending investments that do not have any legal claim against it. Encumbered property subject to or available for operating lease, net Encumbered Property Subject to or Available for Operating Lease, Net Represents the property subject to or available for operating leases which is owned by one party but subject to legal claims by another party. Unencumbered property subject to or available for operating lease net Unencumbered property subject to or available for operating lease net Represents the property subject to or available for operating leases that do not have any legal claim against it. Rehi and oreo assets pledged as collateral REHI and OREO Assets Pledged as Collateral Represents the REHI or OREO assets which is owned by one party but subject to legal claims by another party. Rehi and oreo assets not pledged as collateral REHI and OREO assets not pledged as collateral Represents the amount of REHI or OREO assets that do not have any legal claim against it. Other encumbered investments Encumbered other investments Represents the amount of other investments owned by one party but subject to legal claims by another party. Other unencumbered investments Unencumbered other investments Represents the amount of other investments owned that do not have any legal claim against it. Cash and other assets pledged as collateral Cash and other assets pledged as collateral Represents the amount of cash and other assets owned by one party but subject to legal claims by another party. Cash and other assets not pledged as collateral Cash and other assets not pledged as collateral Cash and other assets not pledged as collateral Total encumbered assets Encumbered Assets Carrying Value Represents the carrying amount of assets owned by one party but subject to legal claims by another party. Reserve for loan losses Minimum ratio of unencumbered assets to unsecured indebtedness Debt Instrument Covenant Ratio of Unencumbered Assets to Unsecured Indebtedness Represents the minimum ratio of encumbered assets to unsecured indebtedness required under the terms of the debt covenant. Multiple of the minimum collateral coverage on outstanding borrowings Debt Instrument Covenant Multiple of Minimum Collateral Coverage on Outstanding Borrowings Represents the multiple of the minimum collateral coverage on outstanding borrowings required under the terms of the debt covenant. Percentage of REIT taxable income permitted for distribution under debt covenants Debt Instrument Covenant Percentage of Taxable Income Permitted for Distribution if Reit classification is Maintained Represents the percentage of taxable income that is permitted for distribution, under the terms of the debt covenant, if the entity maintains its REIT qualification. Accumulated other comprehensive income (loss) reflected in the Company's shareholders' equity Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Unrealized gains on available-for-sale securities Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax Unrealized gains on cash flow hedges Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax Unrealized losses on cumulative translation adjustment Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Schedule of Cumulative Redeemable Preferred Stock outstanding by series Schedule of Stock by Class [Table Text Block] Accumulated other comprehensive income (loss) reflected in the Company's shareholders' equity Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule of fair value of derivative financial instruments as well as their classification on Consolidated Balance Sheets Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Schedule of derivative financial instruments on Consolidated Statements of Operations Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Table Text Block] Schedule of foreign currency derivatives outstanding Schedule of Notional Amounts of Outstanding Foreign Currency Derivative Positions [Table Text Block] Tabular disclosure of the notional amount of foreign currency derivatives outstanding and maturity dates. Subsequent Events Pro Forma Scheduled Debt Maturities [Abstract] Subsequent Events Pro Forma Scheduled Debt Maturities [Abstract] Schedule of Subsequent Events [Table Text Block] Schedule of Subsequent Events [Table Text Block] Common Stock Dividends Declared by Type [Table] Common Stock Dividends Declared by Type [Table] A table or schedule providing information pertaining to common stock dividends declared by dividend type. Common Stock Dividends Declared by Type [Line Items] Common Stock Dividends Declared by Type [Line Items] Dividends [Abstract] Dividends [Abstract] Minimum percentage of taxable income (excluding net capital gains) to be distributed in order to qualify as REIT Minimum Percentage of Taxable Income Excluding Capital Gains to be Distributed to Qualify as REIT Represents the minimum percentage of taxable income (excluding capital gains) to be distributed in order to qualify as REIT. Percentage of taxable income (including net capital gains) to be distributed in order to qualify as REIT Percentage of Taxable Income Including Capital Gains to be Distributed to Qualify as REIT Represents the percentage of taxable income (including capital gains) to be distributed in order to qualify as REIT. Operating Loss Carryforwards Operating Loss Carryforwards Statement of Financial Position [Abstract] ASSETS Assets [Abstract] Loans and other lending investments, net Net lease assets, net Real estate held for investment, net Other real estate owned Other Real Estate Owned Carrying amount as of the balance sheet date of real estate property obtained through foreclosure proceedings or defeasance in full or partial satisfaction of a debt arrangement which is intended to be marketed for sale in the near term. Other investments Assets held for sale Real Estate Held-for-sale Cash and cash equivalents Restricted cash (see Note 10) Restricted Cash and Cash Equivalents Accrued interest and operating lease income receivable, net Accrued Interest and Operating Lease Income Receivable Net This element represents interest, rents, ancillary and operating lease income earned but not yet received by the entity on its loans and other lending investments and net lease assets. Deferred operating lease income receivable Deferred Rent Receivables, Net Deferred expenses and other assets, net Total assets LIABILITIES AND EQUITY Liabilities and Equity [Abstract] Liabilities: Liabilities [Abstract] Accounts payable, accrued expenses and other liabilities Debt obligations, net Total liabilities Liabilities Commitments and contingencies Commitments and Contingencies Redeemable noncontrolling interests Redeemable Noncontrolling Interest, Equity, Carrying Amount Equity: Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] iStar Financial Inc. shareholders' equity: Stockholders' Equity Attributable to Parent [Abstract] Preferred Stock Series D, E, F, G and I, liquidation preference $25.00 per share (see Note 12) Preferred Stock, Value, Issued High Performance Units High Performance Units This element represents equity based compensation which qualifies as a second class of stock. Common Stock, $0.001 par value, 200,000 shares authorized, 142,527 issued and 83,610 outstanding at June 30, 2012 and 140,028 issued and 81,920 outstanding at December 31, 2011 Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital Retained earnings (deficit) Retained Earnings (Accumulated Deficit) Accumulated other comprehensive income (loss) (see Note 12) Treasury stock, at cost, $0.001 par value, 58,917 shares at June 30, 2012 and 58,108 shares at December 31, 2011 Treasury Stock, Value Total iStar Financial Inc. shareholders' equity Stockholders' Equity Attributable to Parent Noncontrolling interests Stockholders' Equity Attributable to Noncontrolling Interest Total equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Total liabilities and equity Liabilities and Equity Other Investments Other Investments [Text Block] This element represents the disclosures for equity method investments, cost method investments, and marketable securities. Subsequent Event [Table] Subsequent Event [Table] Unsecured Notes 7.125% senior notes due 2018 unsecured notes seven point one twenty five percent senior notes due 2018 [Member] Unsecured Notes Seven Point IOne Twenty Five Percent Senior Notes Due 2018 Unsecured Notes 3% Senior Convertible Notes Due October 2016 Unsecured Notes 3 Percent Senior Convertible Notes Due October 2016 [Member] Unsecured Notes 3 Percent Senior Convertible Notes Due October 2016 Unsecured Notes 8.625% senior notes Unsecured Notes 8 point 625 Percent Senior Notes Due June 2013 [Member] Unsecured Notes 8.625% due June 2013 senior notes debt instrument of the entity. Unsecured Notes 6.5% senior notes Unsecured Notes 6 point 5 Percent Senior Notes Due December 2013 [Member] Unsecured Notes 6.5% due December 2013 senior notes debt instrument of the entity. Subsequent Events Subsequent Event [Line Items] Number of debt issuances Number of Debt Issuances Number of Debt Issuances during the period Principal amount used for debt instrument conversion ratio Debt Instrument Principal Amount Denominator for Conversion into Common Stock The principal amount of notes used as denominator for purposes of computing the conversion ratio of convertible debt. Debt Instrument, Convertible, Conversion Price Debt Instrument, Convertible, Conversion Price Underwriter's option to purchase additional notes Underwriter's option to purchase additional notes Underwriter's option to purchase additional notes All proceeds for repayment of credit facility All proceeds for repayment of credit facility Requirement that all proceeds from principal repayments and sales of collateral applied to the repayment of credit facilities. Half proceeds to repayment of credit facility Half proceeds to repayment of credit facility Requirement that half of proceeds from principal repayments and sales of collateral applied to the repayment of credit facilities. Convertible debt conversion ratio Debt Instrument, Convertible, Conversion Ratio Distribution to Shareholders Distribution to Shareholders Real estate assets or interests therein that the Company may distribute that is not collateral securing the borrowings under credit facitlies. Income (loss) from continuing operations attributable to iStar Financial Inc. Income (Loss) from Continuing Operations Attributable to Parent Organization, Consolidation and Presentation of Financial Statements [Abstract] Basis of Presentation and Principles of Consolidation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Schedule of Variable Interest Entities [Table] Schedule of Variable Interest Entities [Table] Variable Interest Entities by Classification of Entity [Axis] Variable Interest Entities [Axis] Variable Interest Entity, Classification [Domain] Variable Interest Entity, Classification [Domain] Variable interest entity, primary beneficiary Variable Interest Entity, Primary Beneficiary, Aggregated Disclosure [Member] Variable interest entity, not primary beneficiary Variable Interest Entity, Not Primary Beneficiary [Member] Variable interest entities Variable Interest Entity [Line Items] Total revenues and total expenses related to consolidated VIEs Variable Interest Entity, Measure of Activity [Abstract] Variable interest entity unfunded commitment Variable Interest Entity Unfunded Commitment The amount of unfunded commitments that the entity has to the Variable Interest Entity. Number of variable interest entities (in investments) Variable Interest Entity Number Represents the number of variable interest entities of the entity. Variable Interest Entity Consolidated Carrying Amount Debt Variable Interest Entity Consolidated Carrying Amount Debt The carrying amount of the consolidated Variable Interest Entity's liabilities included in the reporting entity's statement of financial position. Carrying value of the investments Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping, Disclosure Item Amounts [Axis] Fair Value, by Balance Sheet Grouping, Disclosure Item Amounts [Axis] Fair Value, Disclosure Item Amounts [Domain] Fair Value, Disclosure Item Amounts [Domain] Book Value Carrying (Reported) Amount, Fair Value Disclosure [Member] Fair Value Estimate of Fair Value, Fair Value Disclosure [Member] Book and estimated fair values of financial instruments Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Financial assets: Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] Financial liabilities: Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Equity Equity Related Disclosure [Text Block] This element includes disclosures of Equity related items, including common stock, preferred stock, dividend requirements, treasury stock and accumulated other comprehensive income. Commitment and Contingencies [Table] Commitment and Contingencies [Table] Unsecured debt maturing October 2012 Unsecured Debt Maturing October 2012 [Member] Represents unsecured debt maturing in October 2012. Business Risks and Uncertainties Commitment and Contingencies [Line Items] -- None. No documentation exists for this element. -- Carrying Value Long-term debt maturing in remainder of fiscal year Long-term Debt Maturing in Next Twelve Months Carrying amount of long-term debt, net of unamortized discount or premium, scheduled to be repaid within the next twelve months. Restricted cash company's intent Restricted Cash Company's Intent Remaining restricted cash from the Company's 2012 Secured Credit Facilities and its $275 million unsecured notes. This cash has been restricted based on the Company's intention to repay remaining indebtedness. Current debt Debt, Current Total unencumbered assets Legal settlement payment Payments for Legal Settlements Derivatives Derivative Instruments and Hedging Activities Disclosure [Text Block] Statement, Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] iStar Financial Inc. Shareholders' Equity Parent [Member] Preferred Stock Preferred Stock [Member] HPU's Common Stock at Par Additional Paid-In Capital Additional Paid-in Capital [Member] Retained Earnings (Deficit) Retained Earnings [Member] Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss) [Member] Treasury Stock at cost Treasury Stock [Member] Noncontrolling Interests Noncontrolling Interest [Member] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Balance Dividends declared-preferred Dividends, Preferred Stock, Cash Repurchase of stock Treasury Stock, Value, Acquired, Cost Method Issuance of stock/restricted stock unit amortization, net Issuance of Stock and Restricted Stock Unit Amortization Net Value of stock related to restricted stocks awards issued during the period and the amortization of restricted stock units and other restricted stock activity. Net income (loss) for the period Profit (Loss) Adjusted for Income (Loss) Attributable to Redeemable Noncontrolling Interest The consolidated profit or loss for the period including the portion attributable to the noncontrolling interest, net of income taxes and income (loss) attributable to redeemable noncontrolling interest. Change in accumulated other comprehensive income (loss) Repurchase of convertible notes Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt, Subsequent Adjustments Additional paid in capital attributable to redeemable noncontrolling interest Adjustments to Additional Paid in Capital, Reallocation of Noncontrolling Interest Contributions from noncontrolling interests Noncontrolling Interest, Increase from Equity Issuance or Sale of Parent Equity Interest Distributions to noncontrolling interests Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Balance Reconciliation of income (loss) from continuing operations used in the basic and diluted EPS calculations Schedule of Income (Loss) from Continuing Operations Used in Basic and Diluted Earnings Per Share Calculations [Table Text Block] Tabular disclosure of the reconciliation of income (loss) from continuing operations used in the basic and diluted EPS calculations. Schedule of earnings per share allocable to common shares and HPU shares Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of anti-dilutive shares Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value by Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Recurring basis Fair Value, Measurements, Recurring [Member] Non-recurring basis Fair Value, Measurements, Nonrecurring [Member] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value, Measurements, Fair Value Hierarchy [Domain] Total Quoted market prices in active markets (Level 1) Fair Value, Inputs, Level 1 [Member] Significant other observable inputs (Level 2) Fair Value, Inputs, Level 2 [Member] Significant unobservable inputs (Level 3) Fair Value, Inputs, Level 3 [Member] Assets and liabilities recorded at fair value Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Derivative liabilities Derivative Financial Instruments, Liabilities, Fair Value Disclosure Impaired loans Impaired Loans Receivable Fair Value Disclosure This element represents impaired loans as of the end of the reporting period that are valued by the entity at fair value on the balance sheet date. Impaired net lease assets Impaired Net Lease Assets Fair Value Disclosure Represents the impaired net lease assets as of the end of the reporting period that are valued by the entity at fair value as of the balance sheet date. Impaired OREO Impaired Other Real Estate Owned Fair Value Disclosure This element represents impaired OREOs held by the Company as of the end of the reporting period that are valued by the entity at fair value on the balance sheet date. Schedule of assets and liabilities recorded at fair value on a recurring and non-recurring basis by levels Fair Value Measurements, Recurring and Nonrecurring [Table Text Block] Schedule of quantitative information about Level 3 fair value measures of the entity's non-recurring financial and non-financial assets Fair Value Inputs, Assets, Quantitative Information [Table Text Block] Schedule of book and estimated fair values of financial instruments Fair Value, by Balance Sheet Grouping [Table Text Block] Earnings Per Share Earnings Per Share [Text Block] Investment [Table] Investment [Table] Concentration Risk by Type [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Geographic Region Geographic Concentration Risk [Member] West West [Member] Details pertaining to west geographical region of the entity. Northeast Northeast [Member] Details pertaining to northeast geographical region of the entity. Southeast Southeast [Member] Details pertaining to southeast geographical region of the entity. Southwest Southwest [Member] Details pertaining to southwest geographical region of the entity. Mid-Atlantic Mid-Atlantic [Member] Details pertaining to mid-atlantic geographical region of the entity. Various Various [Member] Details pertaining to various other geographical region of the entity not specified otherwise. Central Central [Member] Details pertaining to central geographical region of the entity. International International [Member] Details pertaining to international geographical region of the entity. Northwest Northwest [Member] Details pertaining to northwest geographical region of the entity. Investment Geographic Region [Axis] Investment Geographic Region [Axis] All States and Provinces [Domain] All States and Provinces [Domain] California CALIFORNIA Florida FLORIDA Concentration Risk by Benchmark [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Customer Concentration Risk Customer Concentration Risk [Member] Apartment/Residential Residential Real Estate [Member] Land Land [Member] Retail Retail Site [Member] Office Commercial Office Real Estate [Member] Represents property that is used for offices. Investment portfolio Investment [Line Items] Carrying Value Investments Gross Carrying value of assets held gross of any adjustments for loan loss reserves. Disclosure threshold (as a percent) Threshold for Disclosure, Percentage Threshold percentage which the entity uses for disclosure. % of Total Concentration Risk, Percentage Number of large borrowers or tenants Concentration Risk Number of Large Borrowers or Tenants Represents the number of large borrowers considered for evaluating concentration risk. Percentage of aggregate annualized interest and operating lease revenue accounted by large borrowers or tenants Concentration Risk Percentage of Aggregate Annualized Interest and Operating Lease Revenue Accounted by Large Borrowers or Tenants Represents the percentage of aggregate annualized interest and operating lease revenue accounted by large borrowers or tenants. Common Stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common Stock, shares authorized (in shares) Common Stock, Shares Authorized Common Stock, shares issued (in shares) Common Stock, Shares, Issued Common Stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Treasury stock, par value (in dollars per share) Treasury Stock Par Value Per Share Face amount or stated value of common shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. Treasury stock, shares (in shares) Treasury Stock, Shares Loans and Other Lending Investments, net Loans and Other Lending Investments Net [Text Block] This element represents a summarization of loans and other lending investments held by the company. Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Derivative financial instruments on consolidated balance sheets Derivatives, Fair Value [Line Items] Derivative Assets Derivative Asset, Fair Value, Gross Asset Derivative Liabilities Derivative Liability, Fair Value, Gross Liability Schedule of real estate held for investment, net Schedule of Real Estate Held-for-Investment [Table Text Block] Tabular disclosure of real estate held for investment by asset type including the gross carrying amount and related accumulated depreciation and amortization. Schedule of REHI operating income and expenses recorded on the Company's consolidated statements of operations Schedule of Real Estate Held-for-Investment Operating Income and Expenses [Table Text Block] Tabular disclosure of operating income and operating expenses of real estate held for investment, recorded on the entity's consolidated statements of operations. Number of components of economic risk Number of Components of Economic Risk Represents the number of components of economic risk. Real Estate Investment Secondary Categorization [Axis] Real Estate Investment Secondary Categorization [Axis] Investment in real estate properties categorized by a second categorization. Real Estate Investments by Secondary Categorization [Domain] Real Estate Investments by Secondary Categorization [Domain] Information about real estate properties by a second categorization. Net Lease Assets Net Lease Asset [Member] Represents details pertaining to net lease assets. REHI Real Estate Acquired through Foreclosure and Held-for-Investment [Member] Land and buildings held for investment which were obtained through foreclosure proceedings or defeasance in full or partial satisfaction of a debt arrangement. OREO Real Estate Acquired through Foreclosure and Held-for-Sale [Member] Land and buildings held for sale which were obtained through foreclosure proceedings or defeasance in full or partial satisfaction of a debt arrangement. Industrial/R&D Commercial Industrial Research and Development Real Estate [Member] Represents commercial property that is used for industrial or research and development activities. Entertainment/Leisure Commercial Entertainment and Leisure Real Estate [Member] Represents commercial property that is used for entertainment and leisure activities. Hotel Hotel [Member] Mixed Use/Mixed Collateral Mixed Use Collateral [Member] Represents real estate properties that have mixed use. Other property types Property, Plant and Equipment, Other Types [Member] Other Investments Other Long-term Investments [Member] Total Net lease asset included in other investments Net Lease Assets Included in Other Investment Represents net lease assets included in other investments. Unsecured Notes 5.95% senior notes Unsecured Notes 5 point 95 Percent Senior Notes Due October 2013 [Member] Unsecured Notes 5.95% due October 2013 senior notes debt instrument of the entity. Unsecured Notes 5.70% senior notes Unsecured Notes 5 Point 70 Percent Senior Notes Due March 2014 [Member] Unsecured Notes 5.70% due March 2014 senior notes debt instrument of the entity. Unsecured Notes 6.05% senior notes Unsecured Notes 6 point 05 Percent Senior Notes Due April 2015 [Member] Unsecured Notes 6.05% due April 2015 senior notes debt instrument of the entity. Unsecured Notes 5.875% senior notes Unsecured Notes 5 point 875 Percent Senior Notes Due March 2016 [Member] Unsecured Notes 5.875% due March 2016 senior notes debt instrument of the entity. Unsecured Notes 5.85% senior notes Unsecured Notes 5 point 85 Percent Senior Notes Due March 2017 [Member] Unsecured Notes 5.85% due March 2017 senior notes debt instrument of the entity. Unsecured Notes Unsecured Senior Notes [Member] Represents the unsecured senior notes of the entity. Other debt obligations due in October, 2035 Other Debt Securities, Due October 2035 [Member] Represents other debt obligations due in October, 2035. Stated interest rate, minimum (as a percent) Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum Stated interest rate, maximum (as a percent) Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum Debt discounts, net Total debt obligations, net Carrying value of the additional paid-in-capital, or equity component of the convertible notes Debt Instrument, Convertible, Carrying Amount of Equity Component Interest expense on the convertible notes recognized Debt Instrument, Convertible, Interest Expense Amortization of the debt discount Amortization of Debt Discount (Premium) Unencumbered assets, accumulated depreciation and loan loss reserves Unencumbered Assets, Accumulated Depreciation and Loan Loss Reserves Represents the amount of accumulated depreciation and loan loss reserves on owned assets that do not have any legal claim against it.