Major Operators (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012 operator	Dec. 31, 2011
Major Operators
Number of major operators	3
Total assets	$ 789,592	$ 647,097
Operators | Extendicare Inc. and ALC | Assisted Living
Major Operators
Number of properties leased	37
Operators | Extendicare Inc. and ALC | Assisted Living | ALF Units
Major Operators
Number of beds/units	1,430
Operators | Brookdale | Assisted Living
Major Operators
Number of properties leased	35
Operators | Brookdale | Assisted Living | ALF Units
Major Operators
Number of beds/units	1,414
Operators | Preferred Care | Assisted Living | ALF Units
Major Operators
Number of beds/units	49
Operators | Preferred Care | Skilled Nursing
Major Operators
Number of properties leased	27
Number of properties sub-leased	1
Operators | Preferred Care | Skilled Nursing | SNF Beds
Major Operators
Number of beds/units	3,354
Operators | Preferred Care | Range of Care
Major Operators
Number of properties leased	2
Total assets | Operators | Extendicare Inc. and ALC
Major Operators
Concentration risk (as a percent)	6.80%
Total assets	53,403
Total assets | Operators | Brookdale
Major Operators
Concentration risk (as a percent)	6.80%
Total assets	53,525
Total assets | Operators | Preferred Care
Major Operators
Concentration risk (as a percent)	6.70%
Total assets	$ 52,550
Rent and Interest Revenue | Operators | Extendicare Inc. and ALC
Major Operators
Concentration risk (as a percent)	11.80%
Rent and Interest Revenue | Operators | Brookdale
Major Operators
Concentration risk (as a percent)	11.50%
Rent and Interest Revenue | Operators | Preferred Care
Major Operators
Concentration risk (as a percent)	11.60%