Notes Receivable And Allowance For Losses Summary of activity related to allowance for losses (Details) (USD $)	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012
Movement in Valuation Allowances and Reserves [Roll Forward]
Ending balance	$ 11,546,000		$ 10,550,000
Forgivable Notes Receivable [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning balance	1,623,000		795,000
Provisions	699,000		1,144,000
Recoveries	(9,000)		(33,000)
Write-offs	(115,000)		(213,000)
Other	(548,000)	[1]	(70,000)	[1]
Ending balance	1,650,000		1,623,000
Mezzanine & Other Notes Receivable [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning balance	8,927,000		8,433,000
Provisions	969,000		591,000
Recoveries	0		(97,000)
Write-offs	0		0
Other	0	[1]	0	[1]
Ending balance	$ 9,896,000		$ 8,927,000

[1] Consists of default rate assumption changes