Major Operators (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013 operator	Dec. 31, 2012
Major Operators
Number of major operators	3
Total assets	$ 792,664	$ 789,592
Minimum
Major Operators
Percentage of rental and interest income derived from each of the major operators	10.00%
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)	6.70%
Total assets	52,877
Total assets | Operators | Brookdale
Major Operators
Concentration risk (as a percent)	6.70%
Total assets	53,038
Total assets | Operators | Preferred Care
Major Operators
Concentration risk (as a percent)	6.60%
Total assets	$ 51,945
Rent and Interest Revenue | Operators | Extendicare Inc. and ALC
Major Operators
Concentration risk (as a percent)	10.70%
Rent and Interest Revenue | Operators | Brookdale
Major Operators
Concentration risk (as a percent)	10.70%
Rent and Interest Revenue | Operators | Preferred Care
Major Operators
Concentration risk (as a percent)	10.50%