2.4.0.814160 - Disclosure - Financial Information for Subsidiary Guarantors and Non-Guarantor Subsidiaries under the Company's 7 5/8% Senior Subordinated Notes (Details)truefalsefalse1false truefalseI2013Q2_SeniorSubordinatedNotesMemberhttp://www.sec.gov/CIK0001035688instant2013-06-30T00:00:000001-01-01T00:00:00falsefalse7 5/8% senior subordinated notesus-gaap_DebtInstrumentAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SeniorSubordinatedNotesMemberus-gaap_DebtInstrumentAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli02false truefalseI2012_SeniorSubordinatedNotesMemberhttp://www.sec.gov/CIK0001035688instant2012-12-31T00:00:000001-01-01T00:00:00falsefalse7 5/8% senior subordinated notesus-gaap_DebtInstrumentAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SeniorSubordinatedNotesMemberus-gaap_DebtInstrumentAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli03false truefalseI2011_SeniorSubordinatedNotesMemberhttp://www.sec.gov/CIK0001035688instant2011-12-31T00:00:000001-01-01T00:00:00falsefalse7 5/8% senior subordinated notesus-gaap_DebtInstrumentAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SeniorSubordinatedNotesMemberus-gaap_DebtInstrumentAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli04false truefalseD2013Q1_M0322_SeniorSubordinatedNotesMember_ScenarioForecastMemberhttp://www.sec.gov/CIK0001035688duration2013-03-21T00:00:002013-03-22T00:00:00falsefalse7 5/8% senior subordinated notesus-gaap_DebtInstrumentAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SeniorSubordinatedNotesMemberus-gaap_DebtInstrumentAxisexplicitMemberfalsefalseForecastus-gaap_StatementScenarioAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_ScenarioForecastMemberus-gaap_StatementScenarioAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli01true 3us-gaap_DebtInstrumentLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Financial Information for Subsidiary Guarantors and Non-Guarantor Subsidiaries under Select's Senior Notes2false 4us-gaap_DebtInstrumentInterestRateStatedPercentageus-gaap_truenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truetruefalse0.076250.07625falsefalsefalse2truetruefalse0.076250.07625falsefalsefalse3truetruefalse0.076250.07625falsefalsefalse4falsetruefalse00falsefalsefalsenum:percentItemTypepureInterest rate stated in the contractual debt agreement.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 false0Interest rate of debt (as a percent)3false 4sem_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmountsem_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsetruefalse00falsefalsefalse2falsetruefalse00falsefalsefalse3falsetruefalse00falsefalsefalse4truetruefalse1.001.00falsefalsefalsenum:percentItemTypepureRepresents the redemption price of the debt instrument as a percentage of the principal amount.No definition available.false0Redemption price as percentage of principal amountfalseFinancial Information for Subsidiary Guarantors and Non-Guarantor Subsidiaries under the Company's 7 5/8% Senior Subordinated Notes (Details) (7 5/8% senior subordinated notes)UnKnownUnKnownUnKnownUnKnowntruefalsefalseNoteshttp://www.selectmedicalcorp.com/role/DisclosureFinancialInformationForSubsidiaryGuarantorsAndNonGuarantorSubsidiariesUnderTheCompanys758SeniorSubordinatedNotesDetails43