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Significant Accounting Policies (Policy)
12 Months Ended
Dec. 31, 2011
Significant Accounting Policies [Abstract]  
Basis of Presentation

    Basis of Presentation The consolidated financial statements include our accounts and our subsidiaries, all of which are wholly-owned.  Significant intercompany balances and transactions have been eliminated.  Certain amounts in prior years have been reclassified to conform to the current year presentation.

Use of Estimates
Fair Value Of Financial Instruments
Real Estate Properties

    Real Estate Properties We record properties at cost, including capitalized interest during construction periods.  We use the straight-line method of depreciation for buildings over their estimated useful lives of 40 years and improvements over their estimated useful lives from 3 to 25 years.

Discontinued Operations And Assets Held For Sale
Property, Plant and Equipment, Impairment
Mortgage Notes Receivable

    Mortgage Notes Receivable – We evaluate the carrying values of our mortgage notes receivable on an instrument-by-instrument basis.  On a quarterly basis, we review our notes receivable for recoverability when events or circumstances, including the non-receipt of contractual principal and interest payments, significant deteriorations of the financial condition of the borrower and significant adverse changes in general economic conditions, indicate that the carrying amount of the note receivable may not be recoverable.  If necessary, an impairment is measured as the amount by which the carrying amount exceeds the discounted cash flows expected to be received under the note receivable or, if foreclosure is probable, the fair value of the collateral securing the note receivable.

Cash and Cash Equivalents

    Cash Equivalents – Cash equivalents consist of all highly liquid investments with an original maturity of three months or less.

Federal Income Taxes
Marketable Securities

    Marketable Securities Our investments in marketable securities are classified as available-for-sale securities.  Unrealized gains and losses on available-for-sale securities are recorded in stockholders' equity.  We evaluate our marketable securities for other-than-temporary impairments on a quarterly basis.  Realized gains and losses from the sale of available-for-sale securities are determined on a specific-identification basis.

 

    A decline in the market value of any available-for-sale or held-to-maturity security below cost that is deemed to be other-than-temporary results in an impairment to reduce the carrying amount to fair value.  The impairment is charged to earnings and a new cost basis for the security is established.  To determine whether an impairment is other-than-temporary, we consider whether we have the ability and intent to hold the investment until a market price recovery and consider whether evidence indicating the cost of the investment is recoverable outweighs evidence to the contrary.  Evidence considered in this assessment includes the reasons for the impairment, the severity and duration of the impairment, changes in value subsequent to year-end and forecasted performance of the investment.

Deferred Costs

    Deferred Costs Costs incurred to acquire financings are amortized by the effective interest method over the term of the related debt.

Deferred Income

    Deferred Income Deferred income primarily includes non-refundable loan commitment fees received by us, which are amortized into income by the effective interest method over the expected period of the related loans.  In the event that a potential borrower chooses not to borrow funds from us, the related commitment fees are recognized into income when the commitment expires.  In management's opinion, these loan commitment fees approximate the loan commitment fees that we would currently charge to enter into similar agreements based on the terms of the agreements and the creditworthiness of the parties, and the committed interest rates are approximately the same as current levels of interest rates.

Rental Income
Mortgage Interest Income
Investment And Other Income

    Investment and Other Income Investment interest and other income includes dividends when declared and interest when earned from investments in preferred stock and marketable securities, realized gains and losses on sales of marketable securities using the specific-identification method, interest on cash and cash equivalents when earned, and amortization of deferred income.

Derivatives
Segment Disclosures
Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]