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Other Current and Non-Current Liabilities - Components of Other Current and Other Non-Current Liabilities (Parenthetical) (Detail) - Restatement Adjustment [Member] $ in Millions | Dec. 31, 2015 USD ($)
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Property Plant And Equipment [Line Items] |
Increase to property and equipment, net | $ 15.0
Increase to other non-current liabilities | $ 15.0

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- Definition Increase to other liabilities noncurrent. + References No definition available. + Details
Name: | see_IncreaseToOtherLiabilitiesNoncurrent
Namespace Prefix: | see_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Increase to property plant and equipment net. + References No definition available. + Details
Name: | see_IncreaseToPropertyPlantAndEquipmentNet
Namespace Prefix: | see_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_StatementScenarioAxis=us-gaap_RestatementAdjustmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |