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Derivatives and Hedging Activities - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended | 3 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2014 | Sep. 30, 2012 | Oct. 16, 2014 | Nov. 30, 2012
Derivative [Line Items] |  |  |  |  |  |  |
Cash received from terminated interest rate swaps | $ 3.1 see_ProceedsFromTerminationOfInterestRateSwaps |  |  |  |  |  |
Number of derivative instruments outstanding |  |  | 0 us-gaap_DerivativeNumberOfInstrumentsHeld |  |  |  |
Designated as Hedging Instruments [Member] |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Reduction of interest expense due to interest rate swap | 2 see_ReductionInInterestExpenseResultingFromInterestRateSwap / us-gaap_HedgingDesignationAxis = us-gaap_DesignatedAsHedgingInstrumentMember |  |  |  |  |  |
Maximum [Member] | Designated as Hedging Instruments [Member] |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Reduction of interest expense due to interest rate swap |  | 1 see_ReductionInInterestExpenseResultingFromInterestRateSwap / us-gaap_HedgingDesignationAxis = us-gaap_DesignatedAsHedgingInstrumentMember / us-gaap_RangeAxis = us-gaap_MaximumMember | 1 see_ReductionInInterestExpenseResultingFromInterestRateSwap / us-gaap_HedgingDesignationAxis = us-gaap_DesignatedAsHedgingInstrumentMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  |  |  |
6.50% Senior Notes Due December 2020 [Member] |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Debt interest rate | 6.50%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = see_SeniorNotesSixPointFivePercentageDue2020Member | 6.50%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = see_SeniorNotesSixPointFivePercentageDue2020Member |  | 6.50%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = see_SeniorNotesSixPointFivePercentageDue2020Member |  | 6.50%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = see_SeniorNotesSixPointFivePercentageDue2020Member | 6.50%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = see_SeniorNotesSixPointFivePercentageDue2020Member
Gain on termination of interest rate swap |  |  |  | 3 us-gaap_GainLossOnSaleOfDerivatives / us-gaap_LongtermDebtTypeAxis = see_SeniorNotesSixPointFivePercentageDue2020Member |  |  |
12% Senior Notes Due February 2014 [Member] |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Debt interest rate | 12.00%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = see_TwelvePercentSeniorNotesDueFebruaryTwoThousandFourteenMember | 12.00%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = see_TwelvePercentSeniorNotesDueFebruaryTwoThousandFourteenMember |  | 12.00%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = see_TwelvePercentSeniorNotesDueFebruaryTwoThousandFourteenMember | 12.00%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = see_TwelvePercentSeniorNotesDueFebruaryTwoThousandFourteenMember |  |
Cash received from terminated interest rate swaps |  |  |  |  | 2.0 see_ProceedsFromTerminationOfInterestRateSwaps / us-gaap_LongtermDebtTypeAxis = see_TwelvePercentSeniorNotesDueFebruaryTwoThousandFourteenMember |  |
Delayed Draw Term Loan A Facility [Member] |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Notional amount of outstanding interest rate swaps | 100 invest_DerivativeNotionalAmount / us-gaap_LongtermDebtTypeAxis = see_DelayedDrawTermLoanMember |  |  | 100 invest_DerivativeNotionalAmount / us-gaap_LongtermDebtTypeAxis = see_DelayedDrawTermLoanMember |  |  |
Foreign Exchange Option [Member |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Maximum original maturity period of foreign currency forward contracts | 12 months |  |  |  |  |  |
Number of derivative instruments outstanding | 0 us-gaap_DerivativeNumberOfInstrumentsHeld / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForeignExchangeOptionMember | 0 us-gaap_DerivativeNumberOfInstrumentsHeld / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForeignExchangeOptionMember | 0 us-gaap_DerivativeNumberOfInstrumentsHeld / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForeignExchangeOptionMember | 0 us-gaap_DerivativeNumberOfInstrumentsHeld / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForeignExchangeOptionMember |  |  |
Interest Rate and Currency Swap [Member] |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Notional amount of outstanding interest rate swaps | $ 100 invest_DerivativeNotionalAmount / us-gaap_DerivativeInstrumentRiskAxis = see_InterestRateAndCurrencySwapMember |  |  | $ 100 invest_DerivativeNotionalAmount / us-gaap_DerivativeInstrumentRiskAxis = see_InterestRateAndCurrencySwapMember |  |  |
Currency Swap Agreements [Member] |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Number of derivative instruments outstanding | 0 us-gaap_DerivativeNumberOfInstrumentsHeld / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CurrencySwapMember | 0 us-gaap_DerivativeNumberOfInstrumentsHeld / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CurrencySwapMember | 0 us-gaap_DerivativeNumberOfInstrumentsHeld / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CurrencySwapMember | 0 us-gaap_DerivativeNumberOfInstrumentsHeld / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CurrencySwapMember |  |  |
Interest Rate Swaps [Member] |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Number of derivative instruments outstanding | 0 us-gaap_DerivativeNumberOfInstrumentsHeld / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_InterestRateSwapMember | 0 us-gaap_DerivativeNumberOfInstrumentsHeld / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_InterestRateSwapMember | 0 us-gaap_DerivativeNumberOfInstrumentsHeld / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_InterestRateSwapMember | 0 us-gaap_DerivativeNumberOfInstrumentsHeld / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_InterestRateSwapMember |  |  |

X
- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Proceeds from termination of interest rate swaps. + References No definition available. + Details
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- Definition Reduction in interest expense resulting from interest rate swap. + References No definition available. + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References 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 + Details
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- Details
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- Definition The number of derivative instruments of a particular group held by the entity. + 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=35706170&loc=SL5580258-113959 Reference 2: 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=35706170&loc=SL5579245-113959 + Details
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- Definition The difference between the book value and the sale price of options, swaps, futures, forward contracts, and other derivative instruments. This element refers to the gain (loss) included in earnings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.13(h)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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- Definition Maximum amount of time remaining before foreign currency exchange rate derivatives mature or expire, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Details
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- Details
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- Details
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