v2.4.1.9

Employee Benefits Employee Benefits (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 27, 2014 | Dec. 28, 2013 | Dec. 29, 2012
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Defined Contribution Plan, Employer Discretionary Contribution Amount | $ 4,325 us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount | $ 4,066 us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount | $ 4,309 us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
DefinedContributionBenefitPlanSupplementalPensionBenefitsAmount | 415 snhy_DefinedContributionBenefitPlanSupplementalPensionBenefitsAmount | 327 snhy_DefinedContributionBenefitPlanSupplementalPensionBenefitsAmount | 330 snhy_DefinedContributionBenefitPlanSupplementalPensionBenefitsAmount
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent | 100.00%us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent |  |
Employee Stock Ownership Plan (ESOP), Shares Contributed to ESOP | 63,647 us-gaap_EmployeeStockOwnershipPlanESOPSharesContributedToESOP | 91,158 us-gaap_EmployeeStockOwnershipPlanESOPSharesContributedToESOP |
Defined Benefit Plan Percentage of Employer Contribution Equal to Wages | 10.00%snhy_DefinedBenefitPlanPercentageofEmployerContributionEqualtoWages |  |
Employee Stock Ownership Plan (ESOP), Compensation Expense | 3,021 us-gaap_EmployeeStockOwnershipPlanESOPCompensationExpense | 2,881 us-gaap_EmployeeStockOwnershipPlanESOPCompensationExpense | 3,011 us-gaap_EmployeeStockOwnershipPlanESOPCompensationExpense
Defined Benefit Contribution Plan Foreign Operations Expenses Recognized | 673 snhy_DefinedBenefitContributionPlanForeignOperationsExpensesRecognized | 551 snhy_DefinedBenefitContributionPlanForeignOperationsExpensesRecognized | 633 snhy_DefinedBenefitContributionPlanForeignOperationsExpensesRecognized
Defined Benefit Plan Compensation Expense | $ 35 snhy_DefinedBenefitPlanCompensationExpense | $ 70 snhy_DefinedBenefitPlanCompensationExpense | $ 44 snhy_DefinedBenefitPlanCompensationExpense
United Kingdom [Member] |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Stock Issued During Period, Shares, Employee Stock Ownership Plan | 5,643 us-gaap_StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan / us-gaap_StatementGeographicalAxis = country_GB | 7,366 us-gaap_StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan / us-gaap_StatementGeographicalAxis = country_GB |
Germany [Member] |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Stock Issued During Period, Shares, Employee Stock Ownership Plan | 4,699 us-gaap_StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan / us-gaap_StatementGeographicalAxis = country_DE | 7,015 us-gaap_StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan / us-gaap_StatementGeographicalAxis = country_DE |

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- Definition Defined Benefit Contribution Plan Foreign Operations Expenses Recognized + References No definition available. + Details
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Namespace Prefix: | snhy_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Defined Benefit Plan Compensation Expense + References No definition available. + Details
Name: | snhy_DefinedBenefitPlanCompensationExpense
Namespace Prefix: | snhy_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Defined Benefit Plan Percentage of Employer Contribution Equal to Wages + References No definition available. + Details
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Namespace Prefix: | snhy_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition DefinedContributionBenefitPlanSupplementalPensionBenefitsAmount + References No definition available. + Details
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Namespace Prefix: | snhy_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
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Data Type: | xbrli:stringItemType
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- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount of plan compensation cost recognized during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929 + Details
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- Definition This item represents the number of shares provided to the Employee Stock Ownership Plan (ESOP) during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929 + Details
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Balance Type: | na
Period Type: | duration

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- Definition Number of shares of capital stock issued (purchased by employees) in connection with an employee stock ownership plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 25 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=6418455&loc=d3e16649-113920 + Details
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- Details
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- Details
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