Schedule IV - Mortgage Notes Receivable on Real Estate (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Mortgage Loans on Real Estate [Line Items]
Interest rate	6.47%	7.33%
Minimum interest rate in range	2.67%
Maximum interest rate in range	10.00%
Monthly payment amount	$ 106
Balloon payment at maturity	14,940
Face amount of mortgages	20,609
Federal income tax basis	19,120
Principal amount of mortgage subject to delinquent principal or interest	0
Debt instrument interest rate stated percentage increase after year two	4.75%
Movement in Mortgage Loans on Real Estate [Roll Forward]
Beginning balance	19,383	34,239	30,519
Additions	0	0	15,334
Receipt of land in lieu of payment	0	0	(2,235)
Non-cash transfer	0	(12,741)	0
Write-off of uncollectable amounts	0	0	(1,900)
Payments	(263)	(2,115)	(7,479)
Ending balance	19,120	19,383	34,239
Other Mortgage, Type [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate description	2.67% - 9.50%
Minimum interest rate in range	2.67%
Maximum interest rate in range	9.50%
Monthly payment amount	17
Balloon payment at maturity	3,340
Face amount of mortgages	5,782
Federal income tax basis	5,782
Principal amount of mortgage subject to delinquent principal or interest	0
Basis spread on variable rate	2.00%
Interest rate, current variable rate	5.25%
Coastal Grand - MyrtleBeach [Member] | First Mortgage [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate	7.75%
Monthly payment amount	58
Balloon payment at maturity	9,000
Face amount of mortgages	9,000
Federal income tax basis	9,000
Principal amount of mortgage subject to delinquent principal or interest	0
One Park Place [Member] | First Mortgage [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate	5.00%
Monthly payment amount	21
Balloon payment at maturity	0
Face amount of mortgages	3,200
Federal income tax basis	1,738
Principal amount of mortgage subject to delinquent principal or interest	0
Village Square, Houghton Lake and Cadillac [Member] | First Mortgage [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate	4.50%
Monthly payment amount	10
Balloon payment at maturity	2,600
Face amount of mortgages	2,627
Federal income tax basis	2,600
Principal amount of mortgage subject to delinquent principal or interest	$ 0
New Garden Crossing [Member] | First Mortgage [Member]
Mortgage Loans on Real Estate [Line Items]
Basis spread on variable rate	2.50%
Woodstock GA Investments LLC [Member]
Mortgage Loans on Real Estate [Line Items]
Interest rate	10.00%