SCHEDULE IV (Details) (USD $)	12 Months Ended					12 Months Ended
	Dec. 31, 2012		Aug. 08, 2016	Aug. 01, 2013	Aug. 08, 2008	Dec. 31, 2012 First Mortgage [Member]	Dec. 31, 2011 First Mortgage [Member]	Dec. 31, 2010 First Mortgage [Member]	Dec. 31, 2012 Sabal Park Building - Tampa, Florida [Member] First Mortgage [Member] Buildings [Member]		Dec. 31, 2012 JCB Limited - California - A [Member] First Mortgage [Member] Buildings [Member]		Dec. 31, 2012 JCB Limited - California - B [Member] First Mortgage [Member] Buildings [Member]
Mortgage Loans on Real Estate [Line Items]
Number of Loans	3	[1]							1		1		1
Stated interest rate (in hundredths)									6.00%	[2]	5.25%		5.25%
Effective interest rate (in hundredths)									6.40%
Non-recourse first mortgage Loan Maturity Date									08/2016		10/2017		10/2017
Periodic Payment Terms									Interest accrued and due monthly (01/01/09 through 07/31/13); principal paydown of $550,000 due on 08/01/13; principal and interest due monthly (beginning 08/01/13); balloon payment of $3,460,000 due at maturity (08/08/16)		Principal and interest due monthly		Principal and interest due monthly
Non-recourse first mortgage loan Face Amount, Total mortgage	$ 9,357,000								$ 4,150,000		$ 2,112,000		$ 3,095,000
Carrying Amount of Mortgages	9,323,000	[3],[4]							4,116,000		2,112,000		3,095,000
Principal Amount of Loans Subject to Delinquent Principal or Interest	0	[5]							0	[5]	0	[5]	0	[5]
Mortgage Loans on Real Estate, Periodic Payment Terms, Balloon Payment Amount			3,460,000
Mortgage Loan on Real Estate, First principal payment due				550,000
Changes in the mortgage loans [Roll Forward]
Balance at beginning of year						4,110,000	4,131,000	4,155,000
Advances on mortgage loans receivable						5,223,000	0	0
Payments on mortgage loans receivable						(20,000)	(33,000)	(37,000)
Amortization of discount on mortgage loan receivable						10,000	12,000	13,000
Balance at end of year						9,323,000	4,110,000	4,131,000
Discount on mortgage loan receivable recognized at inception of loan					198,000
Income Tax Basis of Mortgage Loans on Real Estate	$ 9,360,000

[1] Reference is made to allowance for possible losses on mortgage loans receivable in the Notes to Consolidated Financial Statements.

[2] This mortgage loan has a stated interest rate of 6.0% and an effective interest rate of 6.4%. A discount on mortgage loan receivable of $198,000 was recognized at the inception of the loan and is shown in the table in footnote (d) below.

[3] The aggregate cost for federal income tax purposes is approximately $9.36 million. The federal income tax return for the year ended December 31, 2012, has not been filed and, accordingly, the income tax basis of mortgage loans as of December 31, 2012, is based on preliminary data.

[4] Changes in mortgage loans follow: Years Ended December 31,2012 2011 2010(In thousands)Balance at beginning of year$4,110 4,131 4,155Advances on mortgage loans receivable5,223 — —Payments on mortgage loans receivable(20) (33) (37)Amortization of discount on mortgage loan receivable10 12 13Balance at end of year$9,323 4,110 4,131

[5] Interest in arrears for three months or less is disregarded in computing principal amount of loans subject to delinquent interest.