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Stockholders' Equity - Estimated Amount of Total Share-based Incentive Compensation Expense (Detail) (USD $) In Millions, unless otherwise specified | Dec. 31, 2014
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Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
2015 | $ 22.6 see_EmployeeServiceShareBasedCompensationNonVestedAwardsCompensationCostToBeRecognizedInYearOne
2016 | 15.0 see_EmployeeServiceShareBasedCompensationNonVestedAwardsCompensationCostToBeRecognizedInYearTwo
2017 | 4.4 see_EmployeeServiceShareBasedCompensationNonVestedAwardsCompensationCostToBeRecognizedInYearThree
Total | 42.0 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
2014 Special PSU Awards [Member] |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
2015 | 10.7 see_EmployeeServiceShareBasedCompensationNonVestedAwardsCompensationCostToBeRecognizedInYearOne / us-gaap_AwardTypeAxis = see_TwoThousandFourteenSpecialPsuAwardsMember
2016 | 10.2 see_EmployeeServiceShareBasedCompensationNonVestedAwardsCompensationCostToBeRecognizedInYearTwo / us-gaap_AwardTypeAxis = see_TwoThousandFourteenSpecialPsuAwardsMember
2017 | 4.4 see_EmployeeServiceShareBasedCompensationNonVestedAwardsCompensationCostToBeRecognizedInYearThree / us-gaap_AwardTypeAxis = see_TwoThousandFourteenSpecialPsuAwardsMember
Total | 25.3 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized / us-gaap_AwardTypeAxis = see_TwoThousandFourteenSpecialPsuAwardsMember
2014 Three-year PSU Awards [Member] |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
2015 | 5.2 see_EmployeeServiceShareBasedCompensationNonVestedAwardsCompensationCostToBeRecognizedInYearOne / us-gaap_AwardTypeAxis = see_TwoThousandFourteenThreeYearPsuAwardsMember
2016 | 4.6 see_EmployeeServiceShareBasedCompensationNonVestedAwardsCompensationCostToBeRecognizedInYearTwo / us-gaap_AwardTypeAxis = see_TwoThousandFourteenThreeYearPsuAwardsMember
Total | 9.8 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized / us-gaap_AwardTypeAxis = see_TwoThousandFourteenThreeYearPsuAwardsMember
2013 Three-year PSU Awards [Member] |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
2015 | 5.4 see_EmployeeServiceShareBasedCompensationNonVestedAwardsCompensationCostToBeRecognizedInYearOne / us-gaap_AwardTypeAxis = see_TwoThousandThirteenThreeYearPsuAwardsMember
Total | 5.4 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized / us-gaap_AwardTypeAxis = see_TwoThousandThirteenThreeYearPsuAwardsMember
2012 President & COO Four-year Incentive Compensation [Member] |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
2015 | 0.3 see_EmployeeServiceShareBasedCompensationNonVestedAwardsCompensationCostToBeRecognizedInYearOne / us-gaap_AwardTypeAxis = see_TwoThousandTwelvePresidentAndCooFourYearIncentiveCompensationMember
2016 | 0.2 see_EmployeeServiceShareBasedCompensationNonVestedAwardsCompensationCostToBeRecognizedInYearTwo / us-gaap_AwardTypeAxis = see_TwoThousandTwelvePresidentAndCooFourYearIncentiveCompensationMember
Total | 0.5 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized / us-gaap_AwardTypeAxis = see_TwoThousandTwelvePresidentAndCooFourYearIncentiveCompensationMember
SLO Awards [Member] |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
2015 | 1.0 see_EmployeeServiceShareBasedCompensationNonVestedAwardsCompensationCostToBeRecognizedInYearOne / us-gaap_AwardTypeAxis = see_SloAwardsMember
Total | $ 1.0 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized / us-gaap_AwardTypeAxis = see_SloAwardsMember

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- Definition Employee service share-based compensation non-vested awards compensation cost to be recognized in year one. + References No definition available. + Details
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- Definition Employee service share-based compensation non-vested awards compensation cost to be recognized in year three. + References No definition available. + Details
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- Definition Employee service share-based compensation non-vested awards compensation cost to be recognized in year two. + References No definition available. + Details
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- Definition Unrecognized cost of unvested share-based compensation awards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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