Acquisitions (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014 Operations acquired in business combinations	Mar. 31, 2013 Operations acquired in business combinations	Mar. 31, 2014 IDAHO Transitional Care Management company [Member]
Allocation of purchase price:
Land			$ 760	$ 340
Building and improvements			7,901	3,925
Equipment, furniture and fixtures			376	188
Assembled occupancy			80	75
Goodwill	23,966	23,935		1,966	31
Other intangible assets			0	4,152
Total			$ 9,148	$ 10,646