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Basis of Presentation (Details) | 3 Months Ended
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Mar. 31, 2012
Basis of Presentation |
High end of the range of the required percentage voting interest held to account for investments with the equity method of accounting | 50.00%
Maximum |
Revenue Recognition |
Service sales as a percentage of net sales | 1.00%

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- Definition The high end of the range of the required percentage voting interest to be held by the reporting entity to use the equity method of accounting to report investments, corporate joint ventures, partnerships and affiliated companies in its consolidated financial statements. If the reporting entity can exercise control over the operations and policies, accounting rules require consolidation of the investee's financial statements. + References No definition available. + Details
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Namespace Prefix: | ssd_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Percentage of net sales attributed to services sales. + References No definition available. + Details
Name: | ssd_ServiceSalesPercentageOfNetSales
Namespace Prefix: | ssd_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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

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