Restructuring and Divestiture Charges - Charges Taken Related to Restructuring Actions (Detail) (USD $) In Millions, unless otherwise specified
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3 Months Ended |
6 Months Ended |
12 Months Ended |
3 Months Ended |
Mar. 28, 2015
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Mar. 29, 2014
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Mar. 28, 2015
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Mar. 29, 2014
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Sep. 27, 2014
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Dec. 27, 2014
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Dec. 28, 2013
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Restructuring Cost and Reserve [Line Items] |
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Fiscal restructuring and divestiture charges |
$ 2.0us-gaap_RestructuringCharges |
$ 11.6us-gaap_RestructuringCharges |
$ 10.0us-gaap_RestructuringCharges |
$ 30.0us-gaap_RestructuringCharges |
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Restructuring | Fiscal 2014 Charges |
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Restructuring Cost and Reserve [Line Items] |
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Workforce reductions |
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42.2holx_ReductionOfWorkforceExpenses / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringPlanAxis = holx_YearTwoThousandFourteenMember |
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Non-cash impairment charge |
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3.1us-gaap_RestructuringCostsAndAssetImpairmentCharges / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringPlanAxis = holx_YearTwoThousandFourteenMember |
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Facility closure costs |
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0.6holx_FacilityClosureCosts / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringPlanAxis = holx_YearTwoThousandFourteenMember |
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Other |
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0.3us-gaap_OtherRestructuringCosts / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringPlanAxis = holx_YearTwoThousandFourteenMember |
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Fiscal restructuring charges |
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46.2holx_RestructuringChargesUnderExitOrDisposalPlan / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringPlanAxis = holx_YearTwoThousandFourteenMember |
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Divestiture net charges |
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5.5holx_DivestitureChargesNet / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringPlanAxis = holx_YearTwoThousandFourteenMember |
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Fiscal restructuring and divestiture charges |
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51.7us-gaap_RestructuringCharges / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringPlanAxis = holx_YearTwoThousandFourteenMember |
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Restructuring | Fiscal 2015 Charges |
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Restructuring Cost and Reserve [Line Items] |
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Workforce reductions |
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9.2holx_ReductionOfWorkforceExpenses / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringPlanAxis = holx_Fiscal2015ChargesMember |
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Facility closure costs |
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0.8holx_FacilityClosureCosts / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringPlanAxis = holx_Fiscal2015ChargesMember |
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Fiscal restructuring charges |
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10.0holx_RestructuringChargesUnderExitOrDisposalPlan / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringPlanAxis = holx_Fiscal2015ChargesMember |
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Restructuring | Consolidation of Diagnostics Operations | Fiscal 2014 Charges |
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Restructuring Cost and Reserve [Line Items] |
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Workforce reductions |
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2.9holx_ReductionOfWorkforceExpenses / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_ConsolidationOfDiagnosticsOperationsMember / us-gaap_RestructuringPlanAxis = holx_YearTwoThousandFourteenMember |
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Non-cash impairment charge |
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0us-gaap_RestructuringCostsAndAssetImpairmentCharges / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_ConsolidationOfDiagnosticsOperationsMember / us-gaap_RestructuringPlanAxis = holx_YearTwoThousandFourteenMember |
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Facility closure costs |
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0holx_FacilityClosureCosts / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_ConsolidationOfDiagnosticsOperationsMember / us-gaap_RestructuringPlanAxis = holx_YearTwoThousandFourteenMember |
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Other |
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0.1us-gaap_OtherRestructuringCosts / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_ConsolidationOfDiagnosticsOperationsMember / us-gaap_RestructuringPlanAxis = holx_YearTwoThousandFourteenMember |
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Fiscal restructuring charges |
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3.0holx_RestructuringChargesUnderExitOrDisposalPlan / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_ConsolidationOfDiagnosticsOperationsMember / us-gaap_RestructuringPlanAxis = holx_YearTwoThousandFourteenMember |
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Restructuring | Consolidation of Diagnostics Operations | Fiscal 2015 Charges |
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Restructuring Cost and Reserve [Line Items] |
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Workforce reductions |
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0.1holx_ReductionOfWorkforceExpenses / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_ConsolidationOfDiagnosticsOperationsMember / us-gaap_RestructuringPlanAxis = holx_Fiscal2015ChargesMember |
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Facility closure costs |
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0.4holx_FacilityClosureCosts / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_ConsolidationOfDiagnosticsOperationsMember / us-gaap_RestructuringPlanAxis = holx_Fiscal2015ChargesMember |
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Fiscal restructuring charges |
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0.5holx_RestructuringChargesUnderExitOrDisposalPlan / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_ConsolidationOfDiagnosticsOperationsMember / us-gaap_RestructuringPlanAxis = holx_Fiscal2015ChargesMember |
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Restructuring | Fiscal 2015 Actions | Fiscal 2014 Charges |
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Restructuring Cost and Reserve [Line Items] |
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Workforce reductions |
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0holx_ReductionOfWorkforceExpenses / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_RestructuringActionTwoThousandFifteenMember / us-gaap_RestructuringPlanAxis = holx_YearTwoThousandFourteenMember |
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Non-cash impairment charge |
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0us-gaap_RestructuringCostsAndAssetImpairmentCharges / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_RestructuringActionTwoThousandFifteenMember / us-gaap_RestructuringPlanAxis = holx_YearTwoThousandFourteenMember |
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Facility closure costs |
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0holx_FacilityClosureCosts / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_RestructuringActionTwoThousandFifteenMember / us-gaap_RestructuringPlanAxis = holx_YearTwoThousandFourteenMember |
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Other |
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0us-gaap_OtherRestructuringCosts / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_RestructuringActionTwoThousandFifteenMember / us-gaap_RestructuringPlanAxis = holx_YearTwoThousandFourteenMember |
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Fiscal restructuring charges |
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0holx_RestructuringChargesUnderExitOrDisposalPlan / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_RestructuringActionTwoThousandFifteenMember / us-gaap_RestructuringPlanAxis = holx_YearTwoThousandFourteenMember |
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Restructuring | Fiscal 2015 Actions | Fiscal 2015 Charges |
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Restructuring Cost and Reserve [Line Items] |
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Workforce reductions |
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3.0holx_ReductionOfWorkforceExpenses / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_RestructuringActionTwoThousandFifteenMember / us-gaap_RestructuringPlanAxis = holx_Fiscal2015ChargesMember |
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Facility closure costs |
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0holx_FacilityClosureCosts / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_RestructuringActionTwoThousandFifteenMember / us-gaap_RestructuringPlanAxis = holx_Fiscal2015ChargesMember |
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Fiscal restructuring charges |
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3.0holx_RestructuringChargesUnderExitOrDisposalPlan / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_RestructuringActionTwoThousandFifteenMember / us-gaap_RestructuringPlanAxis = holx_Fiscal2015ChargesMember |
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Restructuring | Fiscal 2014 Actions | Fiscal 2014 Charges |
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Restructuring Cost and Reserve [Line Items] |
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Workforce reductions |
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29.5holx_ReductionOfWorkforceExpenses / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_RestructuringActionTwoThousandFourteenMember / us-gaap_RestructuringPlanAxis = holx_YearTwoThousandFourteenMember |
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Non-cash impairment charge |
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0us-gaap_RestructuringCostsAndAssetImpairmentCharges / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_RestructuringActionTwoThousandFourteenMember / us-gaap_RestructuringPlanAxis = holx_YearTwoThousandFourteenMember |
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Facility closure costs |
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0holx_FacilityClosureCosts / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_RestructuringActionTwoThousandFourteenMember / us-gaap_RestructuringPlanAxis = holx_YearTwoThousandFourteenMember |
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Other |
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0us-gaap_OtherRestructuringCosts / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_RestructuringActionTwoThousandFourteenMember / us-gaap_RestructuringPlanAxis = holx_YearTwoThousandFourteenMember |
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Fiscal restructuring charges |
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29.5holx_RestructuringChargesUnderExitOrDisposalPlan / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_RestructuringActionTwoThousandFourteenMember / us-gaap_RestructuringPlanAxis = holx_YearTwoThousandFourteenMember |
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Restructuring | Fiscal 2014 Actions | Fiscal 2015 Charges |
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Restructuring Cost and Reserve [Line Items] |
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Workforce reductions |
1.4holx_ReductionOfWorkforceExpenses / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_RestructuringActionTwoThousandFourteenMember / us-gaap_RestructuringPlanAxis = holx_Fiscal2015ChargesMember |
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5.9holx_ReductionOfWorkforceExpenses / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_RestructuringActionTwoThousandFourteenMember / us-gaap_RestructuringPlanAxis = holx_Fiscal2015ChargesMember |
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4.5holx_ReductionOfWorkforceExpenses / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_RestructuringActionTwoThousandFourteenMember / us-gaap_RestructuringPlanAxis = holx_Fiscal2015ChargesMember |
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Facility closure costs |
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0.2holx_FacilityClosureCosts / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_RestructuringActionTwoThousandFourteenMember / us-gaap_RestructuringPlanAxis = holx_Fiscal2015ChargesMember |
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0.2holx_FacilityClosureCosts / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_RestructuringActionTwoThousandFourteenMember / us-gaap_RestructuringPlanAxis = holx_Fiscal2015ChargesMember |
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Fiscal restructuring charges |
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6.1holx_RestructuringChargesUnderExitOrDisposalPlan / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_RestructuringActionTwoThousandFourteenMember / us-gaap_RestructuringPlanAxis = holx_Fiscal2015ChargesMember |
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Restructuring | Other Operating Cost Reductions | Fiscal 2014 Charges |
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Restructuring Cost and Reserve [Line Items] |
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Workforce reductions |
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9.8holx_ReductionOfWorkforceExpenses / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_OtherOperatingCostReductionsMember / us-gaap_RestructuringPlanAxis = holx_YearTwoThousandFourteenMember |
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Non-cash impairment charge |
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3.1us-gaap_RestructuringCostsAndAssetImpairmentCharges / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_OtherOperatingCostReductionsMember / us-gaap_RestructuringPlanAxis = holx_YearTwoThousandFourteenMember |
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3.1us-gaap_RestructuringCostsAndAssetImpairmentCharges / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_OtherOperatingCostReductionsMember / us-gaap_RestructuringPlanAxis = holx_YearTwoThousandFourteenMember |
Facility closure costs |
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0.6holx_FacilityClosureCosts / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_OtherOperatingCostReductionsMember / us-gaap_RestructuringPlanAxis = holx_YearTwoThousandFourteenMember |
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Other |
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0.2us-gaap_OtherRestructuringCosts / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_OtherOperatingCostReductionsMember / us-gaap_RestructuringPlanAxis = holx_YearTwoThousandFourteenMember |
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Fiscal restructuring charges |
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13.7holx_RestructuringChargesUnderExitOrDisposalPlan / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_OtherOperatingCostReductionsMember / us-gaap_RestructuringPlanAxis = holx_YearTwoThousandFourteenMember |
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Restructuring | Other Operating Cost Reductions | Fiscal 2015 Charges |
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Restructuring Cost and Reserve [Line Items] |
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Workforce reductions |
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0.2holx_ReductionOfWorkforceExpenses / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_OtherOperatingCostReductionsMember / us-gaap_RestructuringPlanAxis = holx_Fiscal2015ChargesMember |
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Facility closure costs |
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0.2holx_FacilityClosureCosts / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_OtherOperatingCostReductionsMember / us-gaap_RestructuringPlanAxis = holx_Fiscal2015ChargesMember |
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Fiscal restructuring charges |
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$ 0.4holx_RestructuringChargesUnderExitOrDisposalPlan / us-gaap_IncomeStatementLocationAxis = us-gaap_RestructuringChargesMember / us-gaap_RestructuringCostAndReserveAxis = holx_OtherOperatingCostReductionsMember / us-gaap_RestructuringPlanAxis = holx_Fiscal2015ChargesMember |
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