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Basis of Presentation (Details 5) (USD $) In Millions, unless otherwise specified | 3 Months Ended
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Mar. 31, 2015
Acquisitions |
Maximum period for payment for adjustments to provisional fair value measurements | 1 year
S&P Clever |
Acquisitions |
Deferred consideration payment | 0.7 ssd_BusinessCombinationContingentConsiderationArrangementsDeferredConsiderationPayment / us-gaap_BusinessAcquisitionAxis = ssd_SAndPCleverMember
Contingent consideration payment | 0.3 ssd_BusinessCombinationContingentConsiderationArrangementsContingentConsiderationPayment / us-gaap_BusinessAcquisitionAxis = ssd_SAndPCleverMember
Bierbach GmbH & Co. KG. |
Acquisitions |
Contingent consideration payment | 0.2 ssd_BusinessCombinationContingentConsiderationArrangementsContingentConsiderationPayment / us-gaap_BusinessAcquisitionAxis = ssd_BierbachGmbHAndCo.KGMember

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