Consolidated Real Estate Joint Ventures (Details) (USD $)	3 Months Ended								12 Months Ended											0 Months Ended	12 Months Ended					6 Months Ended		12 Months Ended	0 Months Ended
	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2010 White Plains LLC [Member]	Dec. 31, 2009 White Plains LLC [Member]	Dec. 31, 2011 VinREIT LLC [Member] wineries vineyards	Dec. 31, 2010 VinREIT LLC [Member]	Dec. 31, 2009 VinREIT LLC [Member]	Dec. 31, 2011 VinREIT Global Wine Partners GWP [Member]	Dec. 31, 2010 VinREIT Global Wine Partners GWP [Member]	Dec. 31, 2009 VinREIT Global Wine Partners GWP [Member]	Jun. 18, 2010 New Roc [Member]	Dec. 31, 2010 New Roc [Member]	Dec. 31, 2009 New Roc [Member]	Dec. 31, 2011 Suffolk Retail Llc Member	Dec. 31, 2010 Suffolk Retail Llc Member	Dec. 31, 2009 Suffolk Retail Llc Member	Jun. 17, 2010 New Roc [Member]	Jun. 17, 2010 White Plains LLC [Member]	Dec. 21, 2011 Suffolk Retail Llc Member properties developmentproject	Jun. 18, 2010 City Center [Member]
Consolidated Real Estate Joint Venture [Line Items]
Wholly owned subsidiary percentage in net assets														96.00%						100.00%
Number Of Wineries Owned														8
Number Of Vineyards Owned														5
Origination Fee Percentage On Winery And Vineyard Investments																	1.00%
Percentage Of Annual Cash Flow Of VinREIT After Charge For Debt Service																	4.00%
Net income (loss) attributable to noncontrolling interest									$ 38,000	$ (1,819,000)	$ (19,913,000)	$ 1,900,000	$ 20,100,000	$ 39,900,000	$ 2,200,000	$ 2,100,000	$ 38,000	$ 86,000	$ 231,000
Proceeds from Distributions Received from Real Estate Partnerships														9,700,000	332,000	6,200,000
Distributions Payable to Real Estate Partnerships														90,900,000
Proceeds from Sale of Real Estate									1,700,000	0	0			19,500,000
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage																										71.40%	66.67%	50.00%	0.00%
Real Estate, Number of Completed Development Phases																												3
Number of Properties Adjacent to Development of Real Estate																												1
Construction and Development Costs																												19,800,000
Net Income (Loss) Attributable to Parent	$ 31,940,000	$ 25,749,000	$ (7,549,000)	$ 34,179,000	$ 26,652,000	$ 27,457,000	$ 8,036,000	$ 22,523,000	$ 115,228,000	$ 114,874,000	$ 8,007,000	$ 3,100,000	$ 42,900,000								$ 1,100,000	$ 900,000	$ 645,000	$ 579,000	$ 475,000