XML 47 R62.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Financial Instruments - Additional Information (Detail) |  | 12 Months Ended |  |  | 12 Months Ended |  |  |  |  |  |  |  | 12 Months Ended |  | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2011 | Dec. 31, 2011 Sales Revenue, Goods, Net Entity | Dec. 31, 2010 Sales Revenue, Goods, Net Entity | Dec. 31, 2009 Sales Revenue, Goods, Net Entity | Dec. 31, 2011 Accounts Receivable | Dec. 31, 2010 Accounts Receivable | Dec. 31, 2011 Interest rate swap agreements USD ($) | Dec. 31, 2010 Interest rate swap agreements USD ($) | Dec. 31, 2009 Interest rate swap agreements USD ($) | Dec. 31, 2011 Interest rate swap agreements EUR (€) | Dec. 31, 2010 Interest rate swap agreements EUR (€) | Dec. 31, 2011 Interest rate swap agreements Accrued liabilities USD ($) | Dec. 31, 2010 Interest rate swap agreements Accrued liabilities USD ($) | Dec. 31, 2011 Interest rate swap agreements Other liabilities USD ($) | Dec. 31, 2010 Interest rate swap agreements Other liabilities USD ($) | Dec. 31, 2011 Euro Interest Rate Swap | Dec. 31, 2011 Natural gas swap agreements USD ($) MMBtu | Dec. 31, 2010 Natural gas swap agreements USD ($) MMBtu | Dec. 31, 2009 Natural gas swap agreements USD ($) | Dec. 31, 2011 Natural gas swap agreements Minimum | Dec. 31, 2011 Natural gas swap agreements Maximum | Dec. 31, 2011 Natural gas swap agreements Accrued liabilities USD ($) | Dec. 31, 2011 Foreign Currency Exchange Rate Risk USD ($) | Dec. 31, 2010 Foreign Currency Exchange Rate Risk USD ($) | Dec. 31, 2009 Foreign Currency Exchange Rate Risk USD ($)
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate notional principal amount of outstanding interest rate swap agreements |  |  |  |  |  |  |  |  |  | € 105,000,000 | € 125,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed interest rate on agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.10% |  |  |  |  |  |  |  |  |
Agreement maturity year |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2014 |  |  |  |  |  |  |  |  |
Net payments under derivative swap agreements |  |  |  |  |  |  | 4,700,000 | 7,600,000 | 8,000,000 |  |  |  |  |  |  |  | 600,000 | 1,200,000 | 2,800,000 |  |  |  |  |  |
Effective interest rate on Euro term loans |  |  |  |  |  |  |  |  |  | 4.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of total outstanding swap agreements |  |  |  |  |  |  |  |  |  |  |  | 3,900,000 | 4,800,000 | 7,300,000 | 6,900,000 |  |  |  |  |  |  | 800,000 |  |  |
Percentage of hedged estimated twelve month exposure to fluctuations in natural gas prices |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 29.00% | 39.00% | 33.00% |  |  |  |  |  |
Aggregate notional principal amount of natural gas swap agreements |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 700,000 | 1,000,000 |  |  |  |  |  |  |
Natural gas fixed prices per MMBtu |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.07 | 5.62 |  |  |  |
Foreign currency gains of net investment hedges included in accumulated other comprehensive (loss) income, net of deferred tax benefit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 15,300,000 | $ 14,900,000 | $ 3,000,000
Number of customers |  | 3 | 3 | 3 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Concentration risk, percentage | 99.00% | 27.10% | 30.50% | 30.90% | 20.70% | 22.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

X
- Definition Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 + Details
Name: | invest_DerivativeNonmonetaryNotionalAmount
Namespace Prefix: | invest_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Debt Instrument, Effective Interest Rate, Percentage after Interest Rate Swap + References No definition available. + Details
Name: | slgn_DebtInstrumentEffectiveInterestRatePercentageAfterInterestRateSwap
Namespace Prefix: | slgn_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Derivative Instrument Maturity Year + References No definition available. + Details
Name: | slgn_DerivativeInstrumentMaturityYear
Namespace Prefix: | slgn_
Data Type: | xbrli:gYearItemType
Balance Type: | na
Period Type: | instant

X
- Definition Derivatives Nonmonetary Notional Amount Price Per Unit + References No definition available. + Details
Name: | slgn_DerivativesNonmonetaryNotionalAmountPricePerUnit
Namespace Prefix: | slgn_
Data Type: | us-types:perUnitItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of customers + References No definition available. + Details
Name: | slgn_NumberOfCustomers
Namespace Prefix: | slgn_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value of all liability derivatives designated as cash flow hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 107 -Paragraph 10 -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 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5624163-113959 + Details
Name: | us-gaap_CashFlowHedgeDerivativeInstrumentLiabilitiesAtFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13537-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13531-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592 + Details
Name: | us-gaap_ConcentrationRiskPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The premium (cost) of a hedge, net of any cash received on settlement during the period. + References No definition available. + Details
Name: | us-gaap_DerivativeCostOfHedgeNetOfCashReceived
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Fixed interest rate related to the interest rate derivative. + References No definition available. + Details
Name: | us-gaap_DerivativeFixedInterestRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_DerivativeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage of expected requirements covered by the aggregate notional amount of derivative contracts expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract as a percentage of expected need. + References No definition available. + Details
Name: | us-gaap_DerivativeNonmonetaryNotionalAmountPercentOfRequiredNeedCoverage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Aggregate notional amount of interest rate derivatives, which relates to the currency amount specified in the interest rate derivative instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Notional Amount -URI http://asc.fasb.org/extlink&oid=6519104 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5579245-113959 + Details
Name: | us-gaap_NotionalAmountOfInterestRateDerivatives
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Pre tax adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains (losses). Includes gain (loss) on foreign currency forward exchange contracts. Includes foreign currency transactions designated as hedges of net investment in a foreign entity and intercompany foreign currency transactions that are of a long-term nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements. Includes the gain (loss) on a derivative instrument or nonderivative financial instrument that may give rise to a foreign currency transaction gain (loss) that has been designated and qualified as a hedging instrument for hedging of the foreign currency exposure of a net investment in a foreign operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 20 -Section 35 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6939497&loc=d3e30304-110892 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 24 -Subparagraph b -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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 14, 17, 19, 26 -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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(3) -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 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 45 -Subparagraph c -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 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -Subparagraph (b),(d) -URI http://asc.fasb.org/extlink&oid=6915805&loc=d3e32211-110900 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e637-108580 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 52 -Paragraph 13, 20, 31 -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 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 55 -Paragraph 2 -Subparagraph (a)-(c) -URI http://asc.fasb.org/extlink&oid=6920433&loc=d3e998-108581 + Details
Name: | us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentBeforeTaxPeriodIncreaseDecrease
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration