Discontinued Operations (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				0 Months Ended			1 Months Ended		1 Months Ended	3 Months Ended	1 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012	Sep. 30, 2011 SNF property	Apr. 30, 2013 SNF Subsequent event item	Apr. 30, 2013 SNF Michigan	Dec. 31, 2011 SNF Michigan property unit	Aug. 30, 2011 Assisted living communities SNH Pennsylvania	Aug. 31, 2011 Assisted living communities SNH Pennsylvania property unit	Sep. 30, 2012 Pharmacy business item	Sep. 30, 2012 Pharmacy business	Sep. 30, 2012 Pharmacy business South Carolina item
Discontinued Operations
Number of properties offered for sale				2			2
Number of units in real estate property offered for sale							271
Number of real estate properties sold					2
Sale consideration					$ 8,000	$ 8,000
HUD mortgage debt to be prepaid by the buyer	7,510		7,547			7,510
Asset impairment charge											350
Number of properties agreed to be sold by the related party									1
Number of living units in property agreed to be sold by the related party									103
Decrease in annual lease rent payable (as a percent)								9.00%
Proceeds from sale of pharmacy business										34,298
Working capital included in proceeds from sale of business										3,789
Gain on sale										23,347
Number of pharmacies whose real estate was not acquired by Omnicare										1		1
Summary of the operating results of discontinued operations
Revenues	5,775	24,169
Expenses	(6,154)	(25,022)
Net income (loss)	$ (379)	$ (853)