Mortgage Notes Receivable (Details) (USD $) In Thousands, unless otherwise specified									9 Months Ended	12 Months Ended		12 Months Ended				12 Months Ended		12 Months Ended				12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2013 Construction Loans [Member]	Dec. 31, 2012 Construction Loans [Member]	Sep. 30, 2013 Construction Loans [Member] Oklahoma [Member] Medical Office Building [Member]	Dec. 31, 2013 Construction Loans [Member] Oklahoma [Member] Medical Office Building [Member]	Dec. 31, 2012 Construction Loans [Member] Oklahoma [Member] Medical Office Building [Member]	Dec. 31, 2013 Construction Loans [Member] Missouri [Member] Inpatient [Member]	Dec. 31, 2012 Construction Loans [Member] Missouri [Member] Inpatient [Member]	Dec. 31, 2013 Other Mortgage Loans [Member]	Dec. 31, 2012 Other Mortgage Loans [Member]	Dec. 31, 2013 Other Mortgage Loans [Member] Iowa [Member] Other Property [Member]	Dec. 31, 2012 Other Mortgage Loans [Member] Iowa [Member] Other Property [Member]	Dec. 31, 2013 Other Mortgage Loans [Member] Florida [Member] Medical Office Building [Member]	Dec. 31, 2012 Other Mortgage Loans [Member] Florida [Member] Medical Office Building [Member]	Dec. 31, 2013 Other Mortgage Loans [Member] Texas [Member] Land [Member]	Dec. 31, 2012 Other Mortgage Loans [Member] Texas [Member] Land [Member]	Dec. 31, 2013 Other Mortgage Loans [Member] Texas [Member] Land [Member] Minimum [Member]	Dec. 31, 2013 Other Mortgage Loans [Member] Texas [Member] Land [Member] Maximum [Member]
Mortgage Loans on Real Estate [Line Items]
Face Amount										$ 94,889		$ 111,400				$ 40,000		$ 3,750		$ 3,666
Interest Rate									6.75%	7.72%		8.17%				7.70%		7.50%				5.00%	6.00%
Mortgage notes receivable	$ 125,547	[1]	$ 162,191	[1]	$ 97,381	$ 36,599	$ 79,969	$ 118,441		$ 79,969	$ 56,842	$ 0	$ 61,599	$ 45,578	$ 43,750	$ 39,973	$ 40,000	$ 3,750	$ 3,750	$ 1,855	$ 0

[1] Level 2 - Fair value based on quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-driven valuations in which significant inputs and significant value drivers are observable in active markets.