CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
CONSOLIDATED STATEMENTS OF OPERATIONS (unaudited) [Abstract]
Total net revenues	$ 485,850	$ 473,411	$ 1,457,421	$ 1,415,734
Costs and expenses:
Operating salaries and benefits	273,223	268,501	818,248	799,603
Self-insurance for workers' compensation and general and professional liability insurance	15,250	14,531	45,779	43,433
Operating administrative expenses	13,157	13,343	39,913	38,932
Other operating costs	100,636	97,333	298,213	289,079
Center rent expense	37,184	18,954	111,110	56,306
General and administrative expenses	14,825	14,146	45,156	44,570
Depreciation and amortization	8,295	12,639	23,636	37,449
Provision for losses on accounts receivable	4,916	5,098	14,960	15,811
Interest, net of interest income of $103, $59, $244 and $222 respectively	4,835	10,527	14,689	34,105
Transaction costs	0	4,747	0	6,995
Loss on sale of assets, net	809	0	809	0
Restructuring costs	2,426	0	2,728	0
Loss on asset impairment	317,091	0	317,091	0
Total costs and expenses	792,647	459,819	1,732,332	1,366,283
(Loss) income before income taxes and discontinued operations	(306,797)	13,592	(274,911)	49,451
Income tax expense	1,569	5,559	14,642	19,990
(Loss) income from continuing operations	(308,366)	8,033	(289,553)	29,461
Discontinued operations:
Loss from discontinued operations, net of related taxes	(359)	(477)	(1,113)	(1,734)
Loss on disposal of discontinued operations, net of related taxes	(681)	0	(681)	0
Loss from discontinued operations, net	(1,040)	(477)	(1,794)	(1,734)
Net (loss) income	$ (309,406)	$ 7,556	$ (291,347)	$ 27,727
Basic earnings per common and common equivalent share:
(Loss) income from continuing operations	$ (11.77)	$ 0.39	$ (11.12)	$ 1.69
Loss from discontinued operations, net	$ (0.04)	$ (0.02)	$ (0.07)	$ (0.1)
Net (loss) income	$ (11.81)	$ 0.37	$ (11.19)	$ 1.59
Diluted earnings per common and common equivalent share:
(Loss) income from continuing operations	$ (11.77)	$ 0.39	$ (11.12)	$ 1.68
Loss from discontinued operations, net	$ (0.04)	$ (0.02)	$ (0.07)	$ (0.09)
Net (loss) income	$ (11.81)	$ 0.37	$ (11.19)	$ 1.59
Weighted average number of common and common equivalent shares outstanding:
Basic	26,203	20,529	26,038	17,418
Diluted	26,203	20,550	26,038	17,485