Schedule IV - Mortgage Loans on Real Estate (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Mortgage Loans on Real Estate [Line Items]
Carrying Amount	$ 125,547
Medical Office [Member] | Permanent Mortgage Loans [Member] | Iowa [Member]
Mortgage Loans on Real Estate [Line Items]
Interest Rate	7.70%	[1]
Maturity Date	Jan. 10, 2014	[1]
Original Face Amount	40,000
Carrying Amount	39,973
Balloon	39,973
Medical Office [Member] | Permanent Mortgage Loans [Member] | Florida [Member]
Mortgage Loans on Real Estate [Line Items]
Interest Rate	7.50%	[2]
Maturity Date	Apr. 10, 2015	[3]
Original Face Amount	3,750
Carrying Amount	3,750
Balloon	3,750
Medical Office [Member] | Construction Loans [Member] | Oklahoma [Member]
Mortgage Loans on Real Estate [Line Items]
Interest Rate	7.72%	[2]
Maturity Date	Sep. 30, 2014	[3]
Original Face Amount	94,889
Carrying Amount	79,969
Balloon	79,969
Land [Member] | Permanent Mortgage Loans [Member] | Texas [Member]
Mortgage Loans on Real Estate [Line Items]
Maturity Date	Mar. 25, 2015	[2]
Original Face Amount	3,666
Carrying Amount	1,855
Balloon	$ 1,855
Minimum [Member] | Land [Member] | Permanent Mortgage Loans [Member] | Texas [Member]
Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.00%	[2]
Maximum [Member] | Land [Member] | Permanent Mortgage Loans [Member] | Texas [Member]
Mortgage Loans on Real Estate [Line Items]
Interest Rate	6.00%	[2]

[1] Payment was not received upon maturity. The Company has begun default remedies that could result in foreclosure and the Company obtaining ownership of the property that serves as collateral for the mortgage loan. Interest only until maturity. Principal payments may be made during term without penalty with remaining principal balance due at maturity.

[2] Interest only until maturity. Principal payments may be made during term without penalty with remaining principal balance due at maturity.

[3] Interest only until maturity.