Financial Information for Subsidiary Guarantors and Non-Guarantor Subsidiaries under Select's 6.375% Senior Notes (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Consolidating Statement of Operations
Net operating revenues	$ 795,343	$ 762,578
Costs and expenses:
Cost of services	664,385	638,764
General and administrative	21,675	18,123
Bad debt expense	12,670	11,018
Depreciation and amortization	17,348	16,229
Total costs and expenses	716,078	684,134
Income (loss) from operations	79,265	78,444
Other income and expense:
Equity in earnings of unconsolidated subsidiaries	2,592	908
Loss on early retirement of debt		(2,277)
Interest expense	(21,388)	(20,616)
Income before income taxes	60,469	56,459
Income tax expense	23,184	22,092
Net income	37,285	34,367
Less: Net income attributable to non-controlling interests	2,222	1,323
Net income attributable to Select Medical Holdings Corporation and Select Medical Corporation	35,063	33,044
Select
Consolidating Statement of Operations
Net operating revenues	795,343	762,578
Costs and expenses:
Cost of services	664,385	638,764
General and administrative	21,675	18,123
Bad debt expense	12,670	11,018
Depreciation and amortization	17,348	16,229
Total costs and expenses	716,078	684,134
Income (loss) from operations	79,265	78,444
Other income and expense:
Equity in earnings of unconsolidated subsidiaries	2,592	908
Loss on early retirement of debt		(2,277)
Interest expense	(21,388)	(20,616)
Income before income taxes	60,469	56,459
Income tax expense	23,184	22,092
Net income	37,285	34,367
Less: Net income attributable to non-controlling interests	2,222	1,323
Net income attributable to Select Medical Holdings Corporation and Select Medical Corporation	35,063	33,044
Select | Reportable legal entities | Select Medical Corporation (Parent Company Only)
Consolidating Statement of Operations
Net operating revenues	119	103
Costs and expenses:
Cost of services	436	445
General and administrative	21,751	19,312
Depreciation and amortization	985	923
Total costs and expenses	23,172	20,680
Income (loss) from operations	(23,053)	(20,577)
Other income and expense:
Intercompany interest and royalty fees	(286)	(282)
Intercompany management fees	41,454	38,868
Loss on early retirement of debt		(2,277)
Interest expense	(13,901)	(13,796)
Income before income taxes	4,214	1,936
Income tax expense	1,402	925
Equity in earnings of subsidiaries	32,251	32,033
Net income	35,063	33,044
Net income attributable to Select Medical Holdings Corporation and Select Medical Corporation	35,063	33,044
Select | Reportable legal entities | Subsidiary Guarantors
Consolidating Statement of Operations
Net operating revenues	673,749	660,317
Costs and expenses:
Cost of services	561,093	550,224
General and administrative	(76)	(1,189)
Bad debt expense	9,473	9,317
Depreciation and amortization	13,772	13,048
Total costs and expenses	584,262	571,400
Income (loss) from operations	89,487	88,917
Other income and expense:
Intercompany interest and royalty fees	280	285
Intercompany management fees	(35,247)	(33,941)
Equity in earnings of unconsolidated subsidiaries	2,571	887
Interest expense	(6,003)	(5,832)
Income before income taxes	51,088	50,316
Income tax expense	22,046	20,962
Equity in earnings of subsidiaries	3,280	2,337
Net income	32,322	31,691
Less: Net income attributable to non-controlling interests		53
Net income attributable to Select Medical Holdings Corporation and Select Medical Corporation	32,322	31,638
Select | Reportable legal entities | Non-Guarantor Subsidiaries
Consolidating Statement of Operations
Net operating revenues	121,475	102,158
Costs and expenses:
Cost of services	102,856	88,095
Bad debt expense	3,197	1,701
Depreciation and amortization	2,591	2,258
Total costs and expenses	108,644	92,054
Income (loss) from operations	12,831	10,104
Other income and expense:
Intercompany interest and royalty fees	6	(3)
Intercompany management fees	(6,207)	(4,927)
Equity in earnings of unconsolidated subsidiaries	21	21
Interest expense	(1,484)	(988)
Income before income taxes	5,167	4,207
Income tax expense	(264)	205
Net income	5,431	4,002
Less: Net income attributable to non-controlling interests	2,222	1,270
Net income attributable to Select Medical Holdings Corporation and Select Medical Corporation	3,209	2,732
Select | Eliminations
Other income and expense:
Equity in earnings of subsidiaries	(35,531)	(34,370)
Net income	(35,531)	(34,370)
Net income attributable to Select Medical Holdings Corporation and Select Medical Corporation	$ (35,531)	$ (34,370)