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INCOME TAXES (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Components of income before income taxes [Abstract] |  |  |
United States | $ (9.3)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic | $ (18.8)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic | $ (66.5)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic
Foreign | (23.3)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign | (3.0)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign | 24.9 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign
Loss from continuing operations before income taxes | (32.6)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | (21.8)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | (41.6)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
Current [Abstract] |  |  |
Federal | (0.3)us-gaap_CurrentFederalTaxExpenseBenefit | (8.2)us-gaap_CurrentFederalTaxExpenseBenefit | (5.4)us-gaap_CurrentFederalTaxExpenseBenefit
State | 0.6 us-gaap_CurrentStateAndLocalTaxExpenseBenefit | 0.6 us-gaap_CurrentStateAndLocalTaxExpenseBenefit | 0.3 us-gaap_CurrentStateAndLocalTaxExpenseBenefit
Foreign | 4.1 us-gaap_CurrentForeignTaxExpenseBenefit | 3.2 us-gaap_CurrentForeignTaxExpenseBenefit | 8.1 us-gaap_CurrentForeignTaxExpenseBenefit
Total current | 4.4 us-gaap_CurrentIncomeTaxExpenseBenefit | (4.4)us-gaap_CurrentIncomeTaxExpenseBenefit | 3.0 us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred [Abstract] |  |  |
Federal | 0 us-gaap_DeferredFederalIncomeTaxExpenseBenefit | 20.5 us-gaap_DeferredFederalIncomeTaxExpenseBenefit | (16.5)us-gaap_DeferredFederalIncomeTaxExpenseBenefit
State | (0.5)us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit | 4.8 us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit | (3.3)us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit
Foreign | 1.0 us-gaap_DeferredForeignIncomeTaxExpenseBenefit | 1.1 us-gaap_DeferredForeignIncomeTaxExpenseBenefit | (16.8)us-gaap_DeferredForeignIncomeTaxExpenseBenefit
Total deferred | 0.5 us-gaap_DeferredIncomeTaxExpenseBenefit | 26.4 us-gaap_DeferredIncomeTaxExpenseBenefit | (36.6)us-gaap_DeferredIncomeTaxExpenseBenefit
TOTAL | 4.9 us-gaap_IncomeTaxExpenseBenefit | 22.0 us-gaap_IncomeTaxExpenseBenefit | (33.6)us-gaap_IncomeTaxExpenseBenefit
Foreign income tax (benefit) expense |  |  | (0.2)us-gaap_ForeignIncomeTaxExpenseBenefitContinuingOperations
Reconciliation of the difference between income tax expense and computed income tax expense based on Federal statutory corporate rate [Abstract] |  |  |
Income tax at Federal statutory rate | (11.4)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate | (7.6)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate | (14.5)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
Foreign taxes at rates different from the U.S. rate | 6.1 us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential | 2.3 us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential | (3.7)us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential
State and local income taxes, net of federal tax benefit | 1.3 us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes | (0.3)us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes | (2.1)us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes
Changes in valuation allowances | 9.1 us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance | 28.9 us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance | (13.3)us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
Change in deferred tax liability | 0 us-gaap_IncomeTaxReconciliationOtherAdjustments | (1.2)us-gaap_IncomeTaxReconciliationOtherAdjustments | 0 us-gaap_IncomeTaxReconciliationOtherAdjustments
Non-deductible items | 0 us-gaap_IncomeTaxReconciliationNondeductibleExpense | 0.1 us-gaap_IncomeTaxReconciliationNondeductibleExpense | 0.1 us-gaap_IncomeTaxReconciliationNondeductibleExpense
Other items, net | (0.2)us-gaap_IncomeTaxReconciliationOtherReconcilingItems | (0.2)us-gaap_IncomeTaxReconciliationOtherReconcilingItems | (0.1)us-gaap_IncomeTaxReconciliationOtherReconcilingItems
TOTAL | 4.9 us-gaap_IncomeTaxExpenseBenefit | 22.0 us-gaap_IncomeTaxExpenseBenefit | (33.6)us-gaap_IncomeTaxExpenseBenefit
Reconciliation of the difference between income tax expense and computed income tax expense based on Federal statutory corporate rate, Tax Rate [Abstract] |  |  |
Income tax at Federal statutory rate (in hundredths) | (35.00%)us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate | (35.00%)us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate | (35.00%)us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
Foreign taxes at rates different from the U.S. rate (in hundredths) | 18.70%us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential | 10.60%us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential | (8.90%)us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential
State and local income taxes and changes in valuation allowances, net of federal tax benefit (in hundredths) | 4.00%us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes | (1.40%)us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes | (5.00%)us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
Changes in valuation allowances (in hundredths) | 27.90%us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance | 132.60%us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance | (31.90%)us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
Change in deferred tax liability (in hundredths) | 0.00%us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments | (5.50%)us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments | 0.00%us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments
Non-deductible items (in hundredths) | 0.00%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpense | 0.50%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpense | 0.20%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpense
Other items, net (in hundredths) | (0.60%)us-gaap_EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent | (0.90%)us-gaap_EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent | (0.20%)us-gaap_EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent
Income tax (in hundredths) | 15.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations | 100.90%us-gaap_EffectiveIncomeTaxRateContinuingOperations | (80.80%)us-gaap_EffectiveIncomeTaxRateContinuingOperations
Current [Abstract] |  |  |
Accrued expenses and other liabilities | 10.5 syx_DeferredTaxAssetsAccruedExpensesAndOtherLiabilitiesCurrent | 10.8 syx_DeferredTaxAssetsAccruedExpensesAndOtherLiabilitiesCurrent |
Inventory | 4.2 us-gaap_DeferredTaxAssetsInventory | 4.6 us-gaap_DeferredTaxAssetsInventory |
Valuation allowances | (10.5)us-gaap_DeferredTaxAssetsValuationAllowanceCurrent | (11.2)us-gaap_DeferredTaxAssetsValuationAllowanceCurrent |
Total current assets | 4.2 us-gaap_DeferredTaxAssetsGrossCurrent | 4.2 us-gaap_DeferredTaxAssetsGrossCurrent |
Non-current [Abstract] |  |  |
Net operating loss and credit carryforwards | 35.0 us-gaap_DeferredTaxAssetsOperatingLossCarryforwards | 30.1 us-gaap_DeferredTaxAssetsOperatingLossCarryforwards |
Depreciation | 2.5 us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment | 2.0 us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment |
Intangible & other | 16.2 us-gaap_DeferredTaxAssetsOther | 15.2 us-gaap_DeferredTaxAssetsOther |
Valuation allowances | (38.3)us-gaap_DeferredTaxAssetsValuationAllowanceNoncurrent | (28.5)us-gaap_DeferredTaxAssetsValuationAllowanceNoncurrent |
Total non-current assets | 15.4 us-gaap_DeferredTaxAssetsGrossNoncurrent | 18.8 us-gaap_DeferredTaxAssetsGrossNoncurrent |
Current [Abstract] |  |  |
Deductible assets | 1.5 syx_DeferredTaxLiabilitiesDeductibleAssetsCurrent | 0.7 syx_DeferredTaxLiabilitiesDeductibleAssetsCurrent |
Other | 1.0 syx_DeferredTaxLiabilitiesOtherCurrent | 1.2 syx_DeferredTaxLiabilitiesOtherCurrent |
Total current liabilities | 2.5 us-gaap_DeferredTaxLiabilitiesGrossCurrent | 1.9 us-gaap_DeferredTaxLiabilitiesGrossCurrent |
Non-current [Abstract] |  |  |
Amortization | 1.2 syx_DeferredTaxLiabilitiesAmortizationNonCurrent | 1.1 syx_DeferredTaxLiabilitiesAmortizationNonCurrent |
Depreciation | 0.1 us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment | 1.8 us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment |
Other | 0.6 syx_DeferredTaxLiabilitiesOtherNonCurrent | 0.6 syx_DeferredTaxLiabilitiesOtherNonCurrent |
Total non-current liabilities | 1.9 us-gaap_DeferredIncomeTaxLiabilities | 3.5 us-gaap_DeferredIncomeTaxLiabilities |
Valuation Allowance [Abstract] |  |  |
Valuation allowance recorded | 9.1 us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount |  |
Undistributed earnings of its foreign subsidiaries | 66.8 us-gaap_UndistributedEarningsOfForeignSubsidiaries |  |
Operating Loss Carryforwards [Abstract] |  |  |
Net operating loss carryforwards | 48.8 us-gaap_OperatingLossCarryforwards |  |
Uncertain tax positions | 0 us-gaap_LiabilityForUncertainTaxPositionsCurrent |  |
Unrecognized tax benefits, accrued interest and penalties | 0 us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense | 0 us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense |
Foreign Tax Credits [Member] |  |  |
Operating Loss Carryforwards [Abstract] |  |  |
Tax credit carryforward, valuation allowance | 1.4 us-gaap_TaxCreditCarryforwardValuationAllowance / us-gaap_TaxCreditCarryforwardAxis = syx_ForeignTaxCreditsMember |  |
Foreign [Member] |  |  |
Operating Loss Carryforwards [Abstract] |  |  |
Net operating loss carryforwards | 80.8 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = us-gaap_ForeignCountryMember |  |
Net operating loss carryforwards, expiration year | Dec. 31, 2030 |  |
Net operating loss carryforwards, valuation allowance | 16.7 us-gaap_OperatingLossCarryforwardsValuationAllowance / us-gaap_IncomeTaxAuthorityAxis = us-gaap_ForeignCountryMember |  |
Federal [Member] |  |  |
Operating Loss Carryforwards [Abstract] |  |  |
Net operating loss carryforwards | 1.4 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = us-gaap_InternalRevenueServiceIRSMember |  |
Net operating loss carryforwards, expiration year | Dec. 31, 2024 |  |
Net operating loss carryforwards, valuation allowance | 23.0 us-gaap_OperatingLossCarryforwardsValuationAllowance / us-gaap_IncomeTaxAuthorityAxis = us-gaap_InternalRevenueServiceIRSMember |  |
State [Member] |  |  |
Operating Loss Carryforwards [Abstract] |  |  |
Net operating loss carryforwards, valuation allowance | 7.7 us-gaap_OperatingLossCarryforwardsValuationAllowance / us-gaap_IncomeTaxAuthorityAxis = us-gaap_StateAndLocalJurisdictionMember |  |
State and Foreign [Member] |  |  |
Operating Loss Carryforwards [Abstract] |  |  |
Net operating loss carryforwards, expiration year | Dec. 31, 2034 |  |
U.S. Federal Deferred Tax Assets [Member] |  |  |
Valuation Allowance [Abstract] |  |  |
Valuation allowance recorded | 2.9 us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount / us-gaap_ValuationAllowanceByDeferredTaxAssetAxis = syx_USFederalDeferredTaxAssetsMember |  |
Foreign Deferred Tax Assets [Member] |  |  |
Valuation Allowance [Abstract] |  |  |
Valuation allowance recorded | 7.4 us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount / us-gaap_ValuationAllowanceByDeferredTaxAssetAxis = syx_ForeignDeferredTaxAssetsMember |  |
State Deferred Tax Assets [Member] |  |  |
Valuation Allowance [Abstract] |  |  |
Valuation allowance recorded | $ (1.2)us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount / us-gaap_ValuationAllowanceByDeferredTaxAssetAxis = syx_StateDeferredTaxAssetsMember |  |

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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Income Tax Expense (or Benefit) -URI http://asc.fasb.org/extlink&oid=6515339 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 + Details
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign income tax expense (benefit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Subparagraph 1 -Article 4 + Details
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