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Segments - Geographic Information (Parenthetical) (Detail) | Dec. 31, 2014 | Dec. 31, 2013
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Segment Reporting [Abstract] |  |
Maximum percentage of net sales in any one non-U.S. country | 10.00%see_MaximumPercentageOfNetSales | 10.00%see_MaximumPercentageOfNetSales
Maximum percentage of long-lived assets in any one non-U.S. country | 10.00%see_MaximumPercentageOfLongLivedAssets | 10.00%see_MaximumPercentageOfLongLivedAssets

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- Definition Maximum percentage of long lived assets. + References No definition available. + Details
Name: | see_MaximumPercentageOfLongLivedAssets
Namespace Prefix: | see_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Maximum percentage of net sales. + References No definition available. + Details
Name: | see_MaximumPercentageOfNetSales
Namespace Prefix: | see_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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