Assets Held for Sale (Details) (USD $)	3 Months Ended		9 Months Ended			0 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012	Sep. 11, 2013 Remington Village Multifamily [Member]	Dec. 31, 2012 Remington Village Multifamily [Member]	Sep. 30, 2013 Corporate Aircraft [Member]	Dec. 31, 2012 Corporate Aircraft [Member]	Sep. 30, 2013 Facilities [Member]
Long Lived Assets Held-for-sale [Line Items]
Assets held for sale	$ 0		$ 0		$ 17,051,000	$ 0	$ 15,200,000		$ 1,900,000
Selling price of asset						15,000,000
Commercial note due						9,500,000
Net proceeds on transaction						5,000,000
Liabilities held for sale	0		0		10,022,000	0
(Loss) on sale of discontinued of operations	(120,000)	0	(120,000)	0		(120,000)
Depreciation of assets held for sale not recorded			660,000	560,000
Proceeds from sale of assets held for sale								$ 1,900,000		$ 767,000