Assets Held for Sale (Details) (USD $)	9 Months Ended
Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Assets Held for Sale [Abstract]
Intended selling price of Remington Village	$ 16,000,000
Impairment to adjust the carrying value of the multifamily project to the approximate appraised value	2,000,000
Liabilities held for sale	10,335,000		10,241,000
Depreciation of assets held for sale not recorded	560,000	473,000
Assets held for sale pledged as collateral	10,000,000
Impairment of assets	1,800,000
Long Lived Assets Held-for-sale [Line Items]
Assets held for sale	18,713,000		22,600,000
Remington Village [Member]
Long Lived Assets Held-for-sale [Line Items]
Assets held for sale	16,236,000		18,132,000
Corporate Aircraft and Facilities [Member]
Long Lived Assets Held-for-sale [Line Items]
Assets held for sale	$ 2,477,000		$ 4,468,000

Represents the depreciation of assets held for sale not recorded.

No definition available.

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- Definition

The intended selling price of asset held for sale.

+ References

No definition available.

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- Definition

Current assets (normally turning over within one year or one business cycle if longer) that are held for sale apart from normal operations and anticipated to be sold within one year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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- Definition

The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount.

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- Definition

The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.

+ References

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- Definition

Liability (such as a mortgage) related to a disposal group that is held for sale and anticipated to be sold in less than one year. The liability is expected to be discharged as part of the plan of sale for the asset.

+ References

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- Definition

The loss recognized for any initial write-down from carrying value to fair value less cost to sell for a classified as held for sale.

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