Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

Document and Entity Information (USD $)
12 Months Ended
Dec. 29, 2012
Feb. 25, 2013
Document and Entity Information [Abstract]    
Entity Registrant Name SUN HYDRAULICS CORP  
Entity Central Index Key 0001024795  
Document Type 10-K  
Document Period End Date Dec. 29, 2012  
Amendment Flag false  
Document Fiscal Year Focus 2012  
Document Fiscal Period Focus FY  
Current Fiscal Year End Date --12-29  
Entity Well-known Seasoned Issuer No  
Entity Voluntary Filers No  
Entity Current Reporting Status Yes  
Entity Filer Category Accelerated Filer  
Entity Public Float $ 503,441,646  
Entity Common Stock, Shares Outstanding   26,117,038