Annual report pursuant to Section 13 and 15(d)

Income Taxes (Details)

v2.4.1.9
Income Taxes (Details) (USD $)
3 Months Ended 12 Months Ended
Dec. 27, 2014
Sep. 27, 2014
Jun. 28, 2014
Mar. 29, 2014
Dec. 28, 2013
Sep. 28, 2013
Jun. 29, 2013
Mar. 30, 2013
Dec. 27, 2014
Dec. 28, 2013
Dec. 29, 2012
Components of Income Before Income Taxes [Abstract]                      
United States                 $ 52,713,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic $ 46,314,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic $ 44,957,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic
Foreign                 13,029,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign 10,858,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign 10,896,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign
Income before income taxes 15,370,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments 15,001,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments 18,424,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments 16,947,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments 12,707,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments 12,794,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments 17,516,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments 14,154,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments 65,742,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments 57,172,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments 55,853,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
Current tax expense (benefit):                      
United States                 17,897,000us-gaap_CurrentFederalTaxExpenseBenefit 15,634,000us-gaap_CurrentFederalTaxExpenseBenefit 15,396,000us-gaap_CurrentFederalTaxExpenseBenefit
State and local                 1,249,000us-gaap_CurrentStateAndLocalTaxExpenseBenefit 950,000us-gaap_CurrentStateAndLocalTaxExpenseBenefit 924,000us-gaap_CurrentStateAndLocalTaxExpenseBenefit
Foreign                 2,574,000us-gaap_CurrentForeignTaxExpenseBenefit 2,466,000us-gaap_CurrentForeignTaxExpenseBenefit 1,788,000us-gaap_CurrentForeignTaxExpenseBenefit
Total Current                 21,720,000us-gaap_CurrentIncomeTaxExpenseBenefit 19,050,000us-gaap_CurrentIncomeTaxExpenseBenefit 18,108,000us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred tax expense (benefit):                      
United States                 112,000us-gaap_DeferredFederalIncomeTaxExpenseBenefit 158,000us-gaap_DeferredFederalIncomeTaxExpenseBenefit 545,000us-gaap_DeferredFederalIncomeTaxExpenseBenefit
State and local                 (7,000)us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit 6,000us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit 12,000us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit
Foreign                 142,000us-gaap_DeferredForeignIncomeTaxExpenseBenefit (26,000)us-gaap_DeferredForeignIncomeTaxExpenseBenefit (210,000)us-gaap_DeferredForeignIncomeTaxExpenseBenefit
Provision for deferred income taxes                 247,000us-gaap_DeferredIncomeTaxExpenseBenefit 138,000us-gaap_DeferredIncomeTaxExpenseBenefit 347,000us-gaap_DeferredIncomeTaxExpenseBenefit
Total income tax provision                 21,967,000us-gaap_IncomeTaxExpenseBenefit 19,188,000us-gaap_IncomeTaxExpenseBenefit 18,455,000us-gaap_IncomeTaxExpenseBenefit
Effective Income Tax Rate Reconciliation, Amount [Abstract]                      
U.S. federal taxes at the statutory rate                 23,010,000us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate 20,010,000us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate 19,549,000us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
Foreign tax credit                 (432,000)us-gaap_IncomeTaxReconciliationTaxCreditsForeign (433,000)us-gaap_IncomeTaxReconciliationTaxCreditsForeign (358,000)us-gaap_IncomeTaxReconciliationTaxCreditsForeign
Domestic production activity deduction                 (1,793,000)us-gaap_IncomeTaxReconciliationDeductionsQualifiedProductionActivities (1,632,000)us-gaap_IncomeTaxReconciliationDeductionsQualifiedProductionActivities (1,483,000)us-gaap_IncomeTaxReconciliationDeductionsQualifiedProductionActivities
Foreign income taxed at lower rate                 (957,000)us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential (1,013,000)us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential (901,000)us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential
Nondeductible items                 392,000us-gaap_IncomeTaxReconciliationNondeductibleExpense 302,000us-gaap_IncomeTaxReconciliationNondeductibleExpense 411,000us-gaap_IncomeTaxReconciliationNondeductibleExpense
State and local taxes, net                 1,242,000us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes 957,000us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes 935,000us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes
Change in reserve                 193,000us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance 168,000us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance 710,000us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
Other                 312,000us-gaap_IncomeTaxReconciliationOtherReconcilingItems 829,000us-gaap_IncomeTaxReconciliationOtherReconcilingItems (408,000)us-gaap_IncomeTaxReconciliationOtherReconcilingItems
Cumulative earnings of foreign subsidiaries         72,000,000us-gaap_UndistributedEarningsOfForeignSubsidiaries         72,000,000us-gaap_UndistributedEarningsOfForeignSubsidiaries  
Reconciliation of Unrecognized Tax Benefits [Roll Forward]                      
Unrecognized tax benefit, beginning balance       1,122,000us-gaap_UnrecognizedTaxBenefits       1,195,000us-gaap_UnrecognizedTaxBenefits 1,122,000us-gaap_UnrecognizedTaxBenefits 1,195,000us-gaap_UnrecognizedTaxBenefits 609,000us-gaap_UnrecognizedTaxBenefits
Increases from positions taken during prior periods                 193,000us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions 168,000us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions 710,000us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
Settled positions                 (159,000)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities (241,000)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities (124,000)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
Lapse of statute of limitations                 0us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations 0us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations 0us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
Unrecognized tax benefit, ending balance 1,156,000us-gaap_UnrecognizedTaxBenefits       1,122,000us-gaap_UnrecognizedTaxBenefits       1,156,000us-gaap_UnrecognizedTaxBenefits 1,122,000us-gaap_UnrecognizedTaxBenefits 1,195,000us-gaap_UnrecognizedTaxBenefits
Federal returns currently under examination                 The Company’s federal returns are currently under examination by the Internal Revenue Service (IRS) in the United States for the periods 2005 through 2012    
Accrued expenses and other 467,000snhy_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruedExpensesAndOthersCurrent       474,000snhy_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruedExpensesAndOthersCurrent       467,000snhy_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruedExpensesAndOthersCurrent 474,000snhy_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruedExpensesAndOthersCurrent  
Total current deferred tax assets 467,000us-gaap_DeferredTaxAssetsLiabilitiesNetCurrent       474,000us-gaap_DeferredTaxAssetsLiabilitiesNetCurrent       467,000us-gaap_DeferredTaxAssetsLiabilitiesNetCurrent 474,000us-gaap_DeferredTaxAssetsLiabilitiesNetCurrent  
Accrued expenses and other 2,863,000snhy_DeferredTaxAssetsTaxDeferredExpenseReserveAndAccrualsAccruedExpensesAndOthersNonCurrent       2,414,000snhy_DeferredTaxAssetsTaxDeferredExpenseReserveAndAccrualsAccruedExpensesAndOthersNonCurrent       2,863,000snhy_DeferredTaxAssetsTaxDeferredExpenseReserveAndAccrualsAccruedExpensesAndOthersNonCurrent 2,414,000snhy_DeferredTaxAssetsTaxDeferredExpenseReserveAndAccrualsAccruedExpensesAndOthersNonCurrent  
Total noncurrent deferred tax assets 2,863,000us-gaap_DeferredTaxAssetsLiabilitiesNetNoncurrent       2,414,000us-gaap_DeferredTaxAssetsLiabilitiesNetNoncurrent       2,863,000us-gaap_DeferredTaxAssetsLiabilitiesNetNoncurrent 2,414,000us-gaap_DeferredTaxAssetsLiabilitiesNetNoncurrent  
Depreciation (10,265,000)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment       (8,867,000)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment       (10,265,000)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment (8,867,000)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment  
Other (1,099,000)us-gaap_DeferredTaxLiabilitiesOther       (1,294,000)us-gaap_DeferredTaxLiabilitiesOther       (1,099,000)us-gaap_DeferredTaxLiabilitiesOther (1,294,000)us-gaap_DeferredTaxLiabilitiesOther  
Total noncurrent deferred tax liabilities (11,364,000)us-gaap_DeferredTaxLiabilities       (10,161,000)us-gaap_DeferredTaxLiabilities       (11,364,000)us-gaap_DeferredTaxLiabilities (10,161,000)us-gaap_DeferredTaxLiabilities  
Net noncurrent deferred tax liability (8,501,000)us-gaap_DeferredTaxLiabilitiesNoncurrent       (7,747,000)us-gaap_DeferredTaxLiabilitiesNoncurrent       (8,501,000)us-gaap_DeferredTaxLiabilitiesNoncurrent (7,747,000)us-gaap_DeferredTaxLiabilitiesNoncurrent  
Parent Company [Member]                      
ThirdPartyExportSales [Line Items]                      
ThirdPartyPartyExportSales                 $ 60,052snhy_ThirdPartyPartyExportSales
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
$ 54,213snhy_ThirdPartyPartyExportSales
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
$ 50,231snhy_ThirdPartyPartyExportSales
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember