Annual report pursuant to Section 13 and 15(d)

Goodwill and Intangible Assets (Details 2)

v2.4.1.9
Goodwill and Intangible Assets (Details 2) (USD $)
In Thousands, unless otherwise specified
Dec. 27, 2014
Dec. 28, 2013
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount $ 4,479us-gaap_FiniteLivedIntangibleAssetsGross $ 3,404us-gaap_FiniteLivedIntangibleAssetsGross
Schedule of estimated amortization expense    
2014 389us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths  
2015 471us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo  
2016 471us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree  
2017 471us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour  
2018 471us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive  
Total 2,273snhy_FiniteLivedIntangibleAssetsAmortizationExpenseUpToFiveYears  
Licensing Agreements [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount 1,075us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LicensingAgreementsMember
0us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LicensingAgreementsMember
Sturman (Member) [Member] | Licensing Agreements [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount $ 1,075us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_LicensingAgreementsMember
/ dei_LegalEntityAxis
= snhy_SturmanMemberMember