Financial Information for Subsidiary Guarantors and Non-Guarantor Subsidiaries under Select's 7 5/8% Senior Subordinated Notes (Details 4) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended				3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012 Select Medical Corporation	Jun. 30, 2011 Select Medical Corporation	Jun. 30, 2012 Select Medical Corporation	Jun. 30, 2011 Select Medical Corporation	Jun. 30, 2012 Select Medical Corporation 7 5/8% senior subordinated notes	Dec. 31, 2011 Select Medical Corporation 7 5/8% senior subordinated notes	Jun. 30, 2012 Select Medical Corporation Select Medical Corporation (Parent Company Only)	Jun. 30, 2011 Select Medical Corporation Select Medical Corporation (Parent Company Only)	Jun. 30, 2012 Select Medical Corporation Select Medical Corporation (Parent Company Only)	Jun. 30, 2011 Select Medical Corporation Select Medical Corporation (Parent Company Only)	Jun. 30, 2012 Select Medical Corporation Subsidiary Guarantors	Jun. 30, 2011 Select Medical Corporation Subsidiary Guarantors	Jun. 30, 2012 Select Medical Corporation Subsidiary Guarantors	Jun. 30, 2011 Select Medical Corporation Subsidiary Guarantors	Jun. 30, 2012 Select Medical Corporation Non-Guarantor Subsidiaries	Jun. 30, 2011 Select Medical Corporation Non-Guarantor Subsidiaries	Jun. 30, 2012 Select Medical Corporation Non-Guarantor Subsidiaries	Jun. 30, 2011 Select Medical Corporation Non-Guarantor Subsidiaries	Jun. 30, 2012 Select Medical Corporation Eliminations	Jun. 30, 2011 Select Medical Corporation Eliminations	Jun. 30, 2012 Select Medical Corporation Eliminations	Jun. 30, 2011 Select Medical Corporation Eliminations
Operating activities
Net income	$ 44,816	$ 13,657	$ 87,388	$ 49,044	$ 46,662	$ 24,210	$ 90,971	$ 64,149			$ 45,018	$ 22,272	$ 88,297	$ 60,496	$ 54,555	$ 25,520	$ 97,220	$ 66,803	$ 6,682	$ 6,679	$ 11,203	$ 14,583	$ (59,593)	$ (30,261)	$ (105,749)	$ (77,733)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	15,428	17,999	31,627	35,221	15,428	17,999	31,627	35,221			718	654	1,423	1,300	12,410	15,099	25,580	29,455	2,300	2,246	4,624	4,466
Provision for bad debts	10,029	13,943	20,404	28,293	10,029	13,943	20,404	28,293							8,832	11,908	17,674	24,909	1,197	2,035	2,730	3,384
Loss on early retirement of debt		31,018		31,018		20,385		20,385				20,385		20,385
Loss (gain) from disposal of assets			(3,604)	(5,201)			(3,604)	(5,201)						10			(3,606)	(5,225)			2	14
Non-cash stock compensation expense			2,599	1,780			2,599	1,780					2,599	1,780
Amortization of debt discount			622	962			622	103					622	103
Changes in operating assets and liabilities, net of effects from acquisition of businesses:
Equity in earnings of subsidiaries											(53,981)	(25,477)	(96,638)	(67,152)	(5,612)	(4,784)	(9,111)	(10,581)					59,593	30,261	105,749	77,733
Intercompany													46,380	53,735			(40,086)	(46,683)			(6,294)	(7,052)
Accounts receivable			(30,520)	(81,240)			(30,520)	(81,240)									(15,938)	(73,715)			(14,582)	(7,525)
Other current assets			(1,612)	(1,511)			(1,612)	(1,511)					(1,314)	(2,096)			(983)	245			685	340
Other assets			(653)	2,724			(839)	2,469					4,051	(4,203)			(5,011)	6,564			121	108
Accounts payable			(5,486)	8,107			(5,486)	8,107					(674)	2,758			(3,498)	4,531			(1,314)	818
Due to third-party payors			1,738	(464)			1,738	(464)									(9,527)	6,599			11,265	(7,063)
Accrued expenses			6,423	6,775			6,340	13,008					8,717	9,410			(2,587)	4,606			210	(1,008)
Income and deferred taxes			9,879	8,019			11,809	16,151					11,809	16,151
Net cash provided by operating activities			118,805	83,527			124,049	101,250					65,272	92,677			50,127	7,508			8,650	1,065
Investing activities
Purchases of property and equipment	(16,183)	(10,776)	(27,934)	(23,696)			(27,934)	(23,696)					(1,536)	(1,178)			(20,684)	(18,898)			(5,714)	(3,620)
Investment in businesses			(10,014)	(13,514)			(10,014)	(13,514)									(10,014)	(13,514)
Acquisition of businesses, net of cash acquired			(206)	1,921			(206)	1,921									(206)	1,921
Proceeds from sale of assets			16,511	7,879			16,511	7,879									16,511	7,879
Net cash used in investing activities			(21,643)	(27,410)			(21,643)	(27,410)					(1,536)	(1,178)			(14,393)	(22,612)			(5,714)	(3,620)
Financing activities
Borrowings on revolving credit facilities			340,000	435,000			340,000	435,000					340,000	435,000
Payments on revolving credit facilities			(380,000)	(395,000)			(380,000)	(395,000)					(380,000)	(395,000)
Borrowings on 2011 credit facility term loan, net of discount				841,500				841,500						841,500
Payments on 2011 credit facility term loan			(4,250)				(4,250)						(4,250)
Payments on 2005 credit facility term loans, net of call premium				(484,633)				(484,633)						(484,633)
Repurchase of 7 5/8% senior subordinated notes, net of tender premium				(273,941)				(273,941)						(273,941)
Interest rate of debt (as a percent)									7.625%	7.625%
Borrowings of other debt			5,835	5,496			5,835	5,496					5,557	5,496							278
Principal payments on other debt			(5,085)	(3,480)			(5,085)	(3,480)					(4,179)	(2,581)			(220)	(899)			(686)
Debt issuance costs				(18,556)				(18,556)						(18,556)
Proceeds from bank overdrafts			3,739	2,102			3,739	2,102					3,739	2,102
Equity investment by Holdings							547	169					547	169
Dividends paid to Holdings							(52,034)	(171,008)					(52,034)	(171,008)
Intercompany debt reallocation													33,557	(20,061)			(32,716)	15,372			(841)	4,689
Distributions to non-controlling interests			(1,681)	(2,270)			(1,681)	(2,270)													(1,681)	(2,270)
Net cash used in financing activities			(87,685)	(46,898)			(92,929)	(64,621)					(57,063)	(81,513)			(32,936)	14,473			(2,930)	2,419
Net increase in cash and cash equivalents			9,477	9,219			9,477	9,219					6,673	9,986			2,798	(631)			6	(136)
Cash and cash equivalents at beginning of period			12,043	4,365			12,043	4,365					11,427	149				3,567			616	649
Cash and cash equivalents at end of period	$ 21,520	$ 13,584	$ 21,520	$ 13,584	$ 21,520	$ 13,584	$ 21,520	$ 13,584			$ 18,100	$ 10,135	$ 18,100	$ 10,135	$ 2,798	$ 2,936	$ 2,798	$ 2,936	$ 622	$ 513	$ 622	$ 513