Consolidated Balance Sheets (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 of allowance for doubtful accounts of $41,854 and $41,255 at 2012 and 2013, respectively	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
Stockholders' 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 interest	31,244	28,430
Total Equity	799,660	745,478
Total Liabilities and Equity	2,842,424	2,761,361
Select
Current Assets:
Cash and cash equivalents	9,293	40,144	49,676	12,043
Accounts receivable, net of allowance for doubtful accounts of $41,854 and $41,255 at 2012 and 2013, respectively	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
Stockholders' 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 interest	31,244	28,430
Total Equity	799,660	909,747
Total Liabilities and Equity	$ 2,842,424	$ 2,760,313