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Basis of Presentation and Summary of Business (Details Textual)
Apr. 01, 2013
Mar. 30, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Equity method investment, ownership percentage   40.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
Percentage of Common Stock Purchased 60.00%snhy_PurchaseOfRemainingInterestInEquityInvestee