Financial Information for Subsidiary Guarantors and Non-Guarantor Subsidiaries under Select's 6.375% Senior Notes (Details 2) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011
Current Assets:
Cash and cash equivalents	$ 9,293	$ 40,144	$ 49,676	$ 12,043
Accounts receivable, net	423,334	359,929
Current deferred tax asset	15,372	17,877
Prepaid income taxes	4,044	3,895
Other current assets	39,968	31,818
Total Current Assets	492,011	453,663
Property and equipment, net	499,531	501,552
Goodwill	1,641,836	1,640,534
Other identifiable intangibles	71,831	71,745
Other assets	137,215	93,867
Total Assets	2,842,424	2,761,361	2,781,808
Current Liabilities:
Bank overdrafts	7,435	17,836
Current portion of long-term debt and notes payable	13,966	11,646
Accounts payable	96,360	89,547
Accrued payroll	81,303	88,586
Accrued vacation	57,328	55,714
Accrued interest	22,005	22,016
Accrued other	102,925	102,040
Due to third party payors	3,968	1,078
Total Current Liabilities	385,290	388,463
Long-term debt, net of current portion	1,474,915	1,458,597
Non-current deferred tax liability	90,859	89,510
Other non-current liabilities	80,077	68,502
Total Liabilities	2,031,141	2,005,072
Redeemable non-controlling interests	11,623	10,811
Stockholder's Equity:
Common stock	140	141
Capital in excess of par	472,080	473,697
Retained earnings (accumulated deficit)	296,196	243,210
Total Select Medical Holdings Corporation and Select Medical Corporation Stockholders' Equity	768,416	717,048
Non-controlling interests	31,244	28,430
Total Equity	799,660	745,478
Total Liabilities and Equity	2,842,424	2,761,361
Select Medical Corporation
Current Assets:
Cash and cash equivalents	9,293	40,144	49,676	12,043
Accounts receivable, net	423,334	359,929
Current deferred tax asset	15,372	17,877
Prepaid income taxes	4,044	3,895
Other current assets	39,968	31,818
Total Current Assets	492,011	453,663
Property and equipment, net	499,531	501,552
Goodwill	1,641,836	1,640,534
Other identifiable intangibles	71,831	71,745
Other assets	137,215	92,819
Total Assets	2,842,424	2,760,313	2,780,678
Current Liabilities:
Bank overdrafts	7,435	17,836
Current portion of long-term debt and notes payable	13,966	11,646
Accounts payable	96,360	89,547
Accrued payroll	81,303	88,586
Accrued vacation	57,328	55,714
Accrued interest	22,005	18,759
Accrued other	102,925	107,280
Due to third party payors	3,968	1,078
Total Current Liabilities	385,290	390,446
Long-term debt, net of current portion	1,474,915	1,291,297
Non-current deferred tax liability	90,859	89,510
Other non-current liabilities	80,077	68,502
Total Liabilities	2,031,141	1,839,755
Redeemable non-controlling interests	11,623	10,811
Stockholder's Equity:
Common stock	0	0
Capital in excess of par	866,423	859,839
Retained earnings (accumulated deficit)	(98,007)	21,478
Total Select Medical Holdings Corporation and Select Medical Corporation Stockholders' Equity	768,416	881,317
Non-controlling interests	31,244	28,430
Total Equity	799,660	909,747
Total Liabilities and Equity	2,842,424	2,760,313
Select Medical Corporation | Reportable legal entities | Select Medical Corporation (Parent Company Only)
Current Assets:
Cash and cash equivalents	5,052	35,070	45,069	11,427
Current deferred tax asset	8,038	12,383
Prepaid income taxes	4,044	3,895
Other current assets	8,325	5,600
Total Current Assets	25,459	56,948
Property and equipment, net	14,911	16,344
Investment in affiliates	3,024,968	2,930,022
Non-current deferred tax asset	8,097	5,107
Other assets	36,509	28,680
Total Assets	3,109,944	3,037,101
Current Liabilities:
Bank overdrafts	7,435	17,836
Current portion of long-term debt and notes payable	9,467	8,916
Accounts payable	7,554	4,674
Intercompany accounts	1,135,472	1,124,173
Accrued payroll	516	186
Accrued vacation	4,502	4,249
Accrued interest	20,783	17,955
Accrued other	52,028	58,650
Total Current Liabilities	1,237,757	1,236,639
Long-term debt, net of current portion	1,048,053	872,671
Other non-current liabilities	55,718	46,474
Total Liabilities	2,341,528	2,155,784
Stockholder's Equity:
Common stock	0	0
Capital in excess of par	866,423	859,839
Retained earnings (accumulated deficit)	(98,007)	21,478
Total Select Medical Holdings Corporation and Select Medical Corporation Stockholders' Equity	768,416	881,317
Total Equity	768,416	881,317
Total Liabilities and Equity	3,109,944	3,037,101
Select Medical Corporation | Reportable legal entities | Subsidiary Guarantors
Current Assets:
Cash and cash equivalents	2,996	3,734	3,535
Accounts receivable, net	360,805	308,043
Current deferred tax asset	2,945	1,060
Intercompany receivables	1,034,542	1,021,479
Other current assets	26,783	19,655
Total Current Assets	1,428,071	1,353,971
Property and equipment, net	426,915	425,677
Investment in affiliates	80,282	82,475
Goodwill	1,641,836	1,640,534
Other identifiable intangibles	71,831	71,745
Other assets	100,113	63,447
Total Assets	3,749,048	3,637,849
Current Liabilities:
Current portion of long-term debt and notes payable	1,918	1,059
Accounts payable	75,452	72,213
Accrued payroll	80,527	88,096
Accrued vacation	45,567	44,508
Accrued interest	1,222	804
Accrued other	41,525	39,876
Due to third party payors	733
Total Current Liabilities	246,944	246,556
Long-term debt, net of current portion	367,232	358,104
Non-current deferred tax liability	89,222	85,287
Other non-current liabilities	23,028	20,275
Total Liabilities	726,426	710,222
Stockholder's Equity:
Retained earnings (accumulated deficit)	886,099	790,692
Subsidiary investment	2,136,523	2,136,935
Total Select Medical Holdings Corporation and Select Medical Corporation Stockholders' Equity	3,022,622	2,927,627
Total Equity	3,022,622	2,927,627
Total Liabilities and Equity	3,749,048	3,637,849
Select Medical Corporation | Reportable legal entities | Non-Guarantor Subsidiaries
Current Assets:
Cash and cash equivalents	1,245	1,340	1,072	616
Accounts receivable, net	62,529	53,531
Current deferred tax asset	4,389	4,434
Intercompany receivables	100,930	102,694
Other current assets	4,860	6,563
Total Current Assets	173,953	168,562
Property and equipment, net	57,705	59,531
Other assets	593	692
Total Assets	232,251	228,785
Current Liabilities:
Current portion of long-term debt and notes payable	2,581	1,671
Accounts payable	13,354	12,660
Accrued payroll	260	304
Accrued vacation	7,259	6,957
Accrued other	9,372	8,754
Due to third party payors	3,235	2,723
Total Current Liabilities	36,061	33,069
Long-term debt, net of current portion	59,630	60,522
Non-current deferred tax liability	9,734	9,330
Other non-current liabilities	1,331	1,753
Total Liabilities	106,756	104,674
Redeemable non-controlling interests	11,623	10,811
Stockholder's Equity:
Retained earnings (accumulated deficit)	18,438	21,197
Subsidiary investment	64,190	63,673
Total Select Medical Holdings Corporation and Select Medical Corporation Stockholders' Equity	82,628	84,870
Non-controlling interests	31,244	28,430
Total Equity	113,872	113,300
Total Liabilities and Equity	232,251	228,785
Select Medical Corporation | Eliminations
Current Assets:
Accounts receivable, net		(1,645)
Intercompany receivables	(1,135,472)	(1,124,173)
Total Current Assets	(1,135,472)	(1,125,818)
Investment in affiliates	(3,105,250)	(3,012,497)
Non-current deferred tax asset	(8,097)	(5,107)
Total Assets	(4,248,819)	(4,143,422)
Current Liabilities:
Intercompany accounts	(1,135,472)	(1,124,173)
Due to third party payors		(1,645)
Total Current Liabilities	(1,135,472)	(1,125,818)
Non-current deferred tax liability	(8,097)	(5,107)
Total Liabilities	(1,143,569)	(1,130,925)
Stockholder's Equity:
Retained earnings (accumulated deficit)	(904,537)	(811,889)
Subsidiary investment	(2,200,713)	(2,200,608)
Total Select Medical Holdings Corporation and Select Medical Corporation Stockholders' Equity	(3,105,250)	(3,012,497)
Total Equity	(3,105,250)	(3,012,497)
Total Liabilities and Equity	$ (4,248,819)	$ (4,143,422)