Basis of Presentation (Details)	6 Months Ended
Jun. 30, 2013
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%

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.

No definition available.

Name:	ssd_PercentageOfInterestHeldForEquityMethodInvestmentsHighEndOfRange
Namespace Prefix:	ssd_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration