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CONTINGENT LIABILITIES AND OTHER MATTERS (Details 2) - Site investigation and remediation - site | Jun. 27, 2015 | Dec. 31, 2014
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Environmental Matters |  |
Number of sites | 91 | 91
Number of third-party disposal sites for which entity is potentially responsible | 27 | 28
Number of active sites | 8 | 9

X
- Definition Represents the number of offsite, third-party disposal sites which have been active in the past few years. + References No definition available. + Details
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- Definition Represents the number of sites which have liabilities for site investigation and remediation. + References No definition available. + Details
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Data Type: | xbrli:integerItemType
Balance Type: | na
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- Definition Represents the number of offsite, third-party disposal sites for which the entity is potentially responsible and have received notices of potential liability pursuant to various environmental laws. + References No definition available. + Details
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Namespace Prefix: | spw_
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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
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- Details
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