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v2.4.1.9

Commitments and Contingencies (Details) | 3 Months Ended | 1 Months Ended
--- | --- | ---
Mar. 31, 2015 lawsuit | Feb. 29, 2012 lawsuit
Litigation |  |
Number of lawsuits filed against the entity | 4 us-gaap_LossContingencyPendingClaimsNumber |
Number of cases that alleges damages | 0 ssd_LossContingencyNumberOfCasesThatAllegesDamages |
Nishimura case |  |
Litigation |  |
Number of lawsuits filed against the entity |  | 5 us-gaap_LossContingencyPendingClaimsNumber / us-gaap_LitigationCaseAxis = ssd_NishimuraCaseMember
Number of lawsuits dismissed |  | 3 us-gaap_LossContingencyClaimsSettledAndDismissedNumber / us-gaap_LitigationCaseAxis = ssd_NishimuraCaseMember

X
- Definition Represents the number of cases that alleges a specific amount of damages sought during the period. + References No definition available. + Details
Name: | ssd_LossContingencyNumberOfCasesThatAllegesDamages
Namespace Prefix: | ssd_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition The number of claims settled and dismissed during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349 + Details
Name: | us-gaap_LossContingencyClaimsSettledAndDismissedNumber
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of pending claims pertaining to a loss contingency. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349 + Details
Name: | us-gaap_LossContingencyPendingClaimsNumber
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_LitigationCaseAxis=ssd_NishimuraCaseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |