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v2.4.1.9

Debt (Details) (USD $) In Millions, unless otherwise specified | Mar. 31, 2015 | Dec. 31, 2014
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Debt |  |
Total | $ 2,371.5 us-gaap_DebtInstrumentCarryingAmount | $ 2,319.1 us-gaap_DebtInstrumentCarryingAmount
Less: unamortized discount | (2.8)us-gaap_DebtInstrumentUnamortizedDiscount | (2.9)us-gaap_DebtInstrumentUnamortizedDiscount
Less: amounts due within one year and short-term borrowings | (100.2)us-gaap_DebtCurrent | (93.9)us-gaap_DebtCurrent
Total long-term debt | 2,268.5 us-gaap_LongTermDebtNoncurrent | 2,222.3 us-gaap_LongTermDebtNoncurrent
Unsecured revolving credit facility due April 4, 2018 |  |
Debt |  |
Total | 734.0 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = rs_UnsecuredRevolvingCreditFacilityDueApril2018Member | 675.0 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = rs_UnsecuredRevolvingCreditFacilityDueApril2018Member
Senior unsecured term loan due from June 30, 2015 to April 4, 2018 |  |
Debt |  |
Total | 436.3 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = rs_SeniorUnsecuredTermLoanDueFromJune2015ToApril2018Member | 442.5 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = rs_SeniorUnsecuredTermLoanDueFromJune2015ToApril2018Member
Senior unsecured notes due November 15, 2016 |  |
Debt |  |
Total | 350.0 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = rs_SeniorUnsecuredNotesDueNovember2016Member | 350.0 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = rs_SeniorUnsecuredNotesDueNovember2016Member
Senior unsecured notes due April 15, 2023 |  |
Debt |  |
Total | 500.0 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = rs_SeniorUnsecuredNotesDue2023Member | 500.0 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = rs_SeniorUnsecuredNotesDue2023Member
Senior unsecured notes due November 15, 2036 |  |
Debt |  |
Total | 250.0 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = rs_SeniorUnsecuredNotesDueNovember2036Member | 250.0 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = rs_SeniorUnsecuredNotesDueNovember2036Member
Other notes and revolving credit facilities |  |
Debt |  |
Total | $ 101.2 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = us-gaap_OtherDebtSecuritiesMember | $ 101.6 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = us-gaap_OtherDebtSecuritiesMember

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- Definition Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19 -Article 5 + Details
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- Definition Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -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) -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 22 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 + Details
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- Definition The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400 + Details
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- Definition Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: 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) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 + Details
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