2.4.0.82411402 - Disclosure - Liabilities (Detail)truefalsefalse1false USDtruefalse$I2013Q2_us-gaap_DebtInstrumentAxis_sxcl_TermLoanMemberhttp://www.sec.gov/CIK0000709804instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseTerm Loan [Member]us-gaap_DebtInstrumentAxisxbrldihttp://xbrl.org/2006/xbrldisxcl_TermLoanMemberus-gaap_DebtInstrumentAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$2false USDtruefalse$I2013Q2_us-gaap_DebtInstrumentAxis_sxcl_RevolvingLineOfCreditMemberhttp://www.sec.gov/CIK0000709804instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseRevolving Line Of Credit [Member]us-gaap_DebtInstrumentAxisxbrldihttp://xbrl.org/2006/xbrldisxcl_RevolvingLineOfCreditMemberus-gaap_DebtInstrumentAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$3false USDtruefalse$I2013Q3July3_dei_LegalEntityAxis_sxcl_SteelEnergyInc.Member_us-gaap_SubsequentEventTypeAxis_us-gaap_SubsequentEventMemberhttp://www.sec.gov/CIK0000709804instant2013-07-03T00:00:000001-01-01T00:00:00falsefalseSubsequent Event [Member]us-gaap_SubsequentEventTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SubsequentEventMemberus-gaap_SubsequentEventTypeAxisexplicitMemberfalsefalseSteel Energy Inc. [Member]dei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldisxcl_SteelEnergyInc.Memberdei_LegalEntityAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$4false USDtruefalse$I2013Q3July3_dei_LegalEntityAxis_sxcl_SteelEnergyInc.Member_us-gaap_DebtInstrumentAxis_sxcl_TermLoanMember_us-gaap_SubsequentEventTypeAxis_us-gaap_SubsequentEventMemberhttp://www.sec.gov/CIK0000709804instant2013-07-03T00:00:000001-01-01T00:00:00falsefalseSubsequent Event [Member]us-gaap_SubsequentEventTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SubsequentEventMemberus-gaap_SubsequentEventTypeAxisexplicitMemberfalsefalseSteel Energy Inc. [Member]dei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldisxcl_SteelEnergyInc.Memberdei_LegalEntityAxisexplicitMemberfalsefalseTerm Loan [Member]us-gaap_DebtInstrumentAxisxbrldihttp://xbrl.org/2006/xbrldisxcl_TermLoanMemberus-gaap_DebtInstrumentAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$5false USDtruefalse$I2013Q3July3_dei_LegalEntityAxis_sxcl_SteelEnergyInc.Member_us-gaap_DebtInstrumentAxis_sxcl_RevolvingLineOfCreditMember_us-gaap_SubsequentEventTypeAxis_us-gaap_SubsequentEventMemberhttp://www.sec.gov/CIK0000709804instant2013-07-03T00:00:000001-01-01T00:00:00falsefalseSubsequent Event [Member]us-gaap_SubsequentEventTypeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_SubsequentEventMemberus-gaap_SubsequentEventTypeAxisexplicitMemberfalsefalseSteel Energy Inc. [Member]dei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldisxcl_SteelEnergyInc.Memberdei_LegalEntityAxisexplicitMemberfalsefalseRevolving Line Of Credit [Member]us-gaap_DebtInstrumentAxisxbrldihttp://xbrl.org/2006/xbrldisxcl_RevolvingLineOfCreditMemberus-gaap_DebtInstrumentAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$1false 4us-gaap_LineOfCreditFacilityMaximumBorrowingCapacityus-gaap_truecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse20000000.020000000.0USD$falsetruefalse2truefalsefalse5000000.05000000.0USD$falsetruefalse3truefalsefalse80000000.080000000.0USD$falsetruefalse4truefalsefalse70000000.070000000.0USD$falsetruefalse5truefalsefalse10000000.010000000.0USD$falsetruefalsexbrli:monetaryItemTypemonetaryMaximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 false2Line of credit, maximum borrowing capacityfalseLiabilities (Detail) (USD $)NoRoundingUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.steelexcel.com/role/LiabilitiesDetail51