XML 24 R30.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Long-Term Debt (Details) (USD $) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2015 | Dec. 31, 2014
Debt Instrument [Line Items] |  |
Senior Notes | $ 2,200,000,000 us-gaap_SeniorNotes | $ 2,200,000,000 us-gaap_SeniorNotes
Document Period End Date | Mar. 31, 2015 |
Revolving Credit Facility [Member] | Line of Credit [Member] |  |
Debt Instrument [Line Items] |  |
Line of Credit Facility, Maximum Borrowing Capacity | 2,500,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_LongtermDebtTypeAxis = us-gaap_RevolvingCreditFacilityMember |
Line of Credit Facility, Current Borrowing Capacity | 1,500,000,000 us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_LongtermDebtTypeAxis = us-gaap_RevolvingCreditFacilityMember |
Percentage of Proved Property Secured for Credit Facility Borrowing | 75.00%sm_PercentageofProvedPropertySecuredforCreditFacilityBorrowing / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_LongtermDebtTypeAxis = us-gaap_RevolvingCreditFacilityMember |
Line of Credit, Covenant Compliance, Maximum Annual Dividend Payment | 50,000,000 sm_LineOfCreditCovenantComplianceMaximumAnnualDividendPayment / us-gaap_DebtInstrumentAxis = us-gaap_LineOfCreditMember / us-gaap_LongtermDebtTypeAxis = us-gaap_RevolvingCreditFacilityMember |
Senior Notes [Member] |  |
Debt Instrument [Line Items] |  |
6.625% Senior Notes, Due 2019 | 350,000,000 sm_A6.625SeniorNotesDue2019FaceValue / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember | 350,000,000 sm_A6.625SeniorNotesDue2019FaceValue / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember
6.50% Senior Notes, Due 2021 | 350,000,000 sm_A6.50SeniorNotesDue2021FaceValue / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember | 350,000,000 sm_A6.50SeniorNotesDue2021FaceValue / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember
6.125% Senior Notes, Due 2022 | 600,000,000 sm_A6.125SeniorNotesDue2022 / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember | 600,000,000 sm_A6.125SeniorNotesDue2022 / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember
6.50% Senior Notes, Due 2023 | 400,000,000 sm_A6.50SeniorNotesDue2023FaceValue / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember | 400,000,000 sm_A6.50SeniorNotesDue2023FaceValue / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember
5% Senior Notes, Due 2024 | 500,000,000 sm_A5SeniorNotesDue2024FaceValue / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember | 500,000,000 sm_A5SeniorNotesDue2024FaceValue / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember
Senior Notes | 2,200,000,000 us-gaap_SeniorNotes / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember | 2,200,000,000 us-gaap_SeniorNotes / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember
Debt Instrument, Covenant Compliance, Dividends Excluded From Computation | $ 6,500,000 sm_DebtInstrumentCovenantComplianceDividendsExcludedFromComputation / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |
Senior Notes [Member] | 6.625% Senior Notes Due 2019 [Member] |  |
Debt Instrument [Line Items] |  |
Debt Instrument, Interest Rate, Stated Percentage | 6.625%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = sm_A6625SeniorNotesDue2019Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |
Senior Notes [Member] | 6.50% Senior Notes Due 2021 [Member] |  |
Debt Instrument [Line Items] |  |
Debt Instrument, Interest Rate, Stated Percentage | 6.50%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = sm_A650SeniorNotesDue2021Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |
Senior Notes [Member] | 6.125% Senior Notes Due 2022 [Member] |  |
Debt Instrument [Line Items] |  |
Debt Instrument, Interest Rate, Stated Percentage | 6.125%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = sm_A6.125SeniorNotesDue2022Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |
Senior Notes [Member] | 6.50% Senior Notes Due 2023 [Member] |  |
Debt Instrument [Line Items] |  |
Debt Instrument, Interest Rate, Stated Percentage | 6.50%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = sm_A650SeniorNotesDue2023Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |
Senior Notes [Member] | 5% Senior Notes Due 2024 [Member] |  |
Debt Instrument [Line Items] |  |
Debt Instrument, Interest Rate, Stated Percentage | 5.00%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = sm_A5SeniorNotesDue2024Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |

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- Definition Carrying value as of the balance sheet date of 6.50% Notes due 2021 with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Senior note holders are paid off in full before any payments are made to junior note holders. + References No definition available. + Details
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- Definition Carrying value as of the balance sheet date of 6.50% Notes due 2021 with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Senior note holders are paid off in full before any payments are made to junior note holders. + References No definition available. + Details
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- Definition Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. + 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(b),22(b)) -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, 22 -Article 5 + Details
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- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16(a)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: 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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