Real Estate Owned (Details) (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Summary of carrying amounts for real estate owned (at cost)
Land	$ 1,799,780	$ 1,693,775
Depreciable property - held and used:
Building and improvements	5,035,481	4,499,920
Furniture, fixtures and equipment	306,244	297,096
Under development:
Real estate under development	157,301	97,912
Held for sale:
Real estate owned	7,298,806	6,881,347
Accumulated depreciation	(1,726,258)	(1,638,326)
Real estate owned, net	5,572,548	5,243,021
Land [Member]
Under development:
Real estate under development	78,794	62,410
Held for sale:
Real Estate Held for sale	0	89,932
Construction in Progress [Member]
Under development:
Real estate under development	78,507	35,502
Building and improvements [Member]
Held for sale:
Real Estate Held for sale	0	196,494
Furniture, fixtures and equipment [Member]
Held for sale:
Real Estate Held for sale	$ 0	$ 6,218

Depreciable property - held and used.

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The net book value of real estate held for investment and real estate under development.

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Real Estate Owned Gross.

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Real Estate Under Development Abstract.

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Summary Of Carrying Amounts For Real Estate Owned Abstract.

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- Definition

The current amount of expenditures for a real estate project that has not yet been completed.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.10)
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- Definition

Gross amount, at the balance sheet date, of long-lived, depreciable assets commonly used in offices and stores. Examples include desks, chairs, and store fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 12
-Paragraph 5
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Aggregate of the carrying amounts as of the balance sheet date of investments in building and building improvements.

+ References

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-Name Accounting Standards Codification
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Carrying amount as of the balance sheet date of real estate held for productive use. This excludes land held for sale.

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The amount as of the balance sheet date of accumulated depreciation pertaining to real estate properties.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 970
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Carrying amount as of the balance sheet date of investments in land and buildings held for sale, excluding real estate considered to be inventory of the entity.

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