Discontinued Operations (Details) (USD $)	3 Months Ended				6 Months Ended
	Jun. 30, 2012 HealthcareCenters		Jun. 30, 2011		Jun. 30, 2012 HealthcareCenters		Jun. 30, 2011
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of healthcare centers	190				190
Assets of disposal group, held for sale	$ 4,500,000				$ 4,500,000
Property and equipment of disposal group, held for sale	3,200,000				3,200,000
Other noncurrent assets of disposal group, held for sale	800,000				800,000
Prepaid and other assets of disposal group, held for sale	500,000				500,000
Net operating revenues	13,555,000		19,533,000		30,301,000		39,678,000
Loss from discontinued operations, net (1)	(3,953,000)	[1]	(1,499,000)	[1]	(5,599,000)	[2]	(3,005,000)	[2]
Tax benefit	1,598,000		982,000		2,650,000		1,963,000
Inpatient Services [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of healthcare centers	8				8
Net operating revenues	13,555,000		19,533,000		30,301,000		39,678,000
Loss from discontinued operations, net (1)	(3,949,000)	[1]	(1,490,000)	[1]	(5,593,000)	[2]	(2,987,000)	[2]
Other Services [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net operating revenues	0		0		0		0
Loss from discontinued operations, net (1)	$ (4,000)	[1]	$ (9,000)	[1]	$ (6,000)	[2]	$ (18,000)	[2]

[1] Net of related tax benefit of $1,598 and $982, respectively

[2] Net of related tax benefit of $2,650 and $1,963, respectively