Acquisitions (Tables)

12 Months Ended

Dec. 31, 2010

Acquisitions [Abstract]

Fair Values Of Assets Acquired And Liabilities Assumed At The Date Of The Acquisition

	Concentra
	(in thousands)
Cash and cash equivalents	$	21,317
Receivables		108,571
Other current assets		20,589
Property and equipment		131,837
Goodwill		531,372
Other intangible assets		188,000
Other long-term assets		12,935
Total assets acquired		1,014,621
Current liabilities		(100,091	)
Other long-term liabilities		(109,811	)
Total liabilities assumed		(209,902	)
Net assets acquired	$	804,719