3.19.1 html 310 320 1 false 80 0 false 8 false false R1.htm 0001000 - Document - Document and Entity Information Sheet http://www.msasafety.com/role/DocumentAndEntityInformation Document and Entity Information Cover 1 false false R2.htm 1001000 - Statement - Condensed Consolidated Statement of Income Sheet http://www.msasafety.com/role/CondensedConsolidatedStatementOfIncome Condensed Consolidated Statement of Income Statements 2 false false R3.htm 1002000 - Statement - Condensed Consolidated Statement of Comprehensive Income Sheet http://www.msasafety.com/role/CondensedConsolidatedStatementOfComprehensiveIncome Condensed Consolidated Statement of Comprehensive Income Statements 3 false false R4.htm 1003000 - Statement - Condensed Consolidated Balance Sheet Sheet http://www.msasafety.com/role/CondensedConsolidatedBalanceSheet Condensed Consolidated Balance Sheet Statements 4 false false R5.htm 1003001 - Statement - Condensed Consolidated Balance Sheet (Parenthetical) Sheet http://www.msasafety.com/role/CondensedConsolidatedBalanceSheetParenthetical Condensed Consolidated Balance Sheet (Parenthetical) Statements 5 false false R6.htm 1005000 - Statement - Condensed Consolidated Statement of Cash Flows Sheet http://www.msasafety.com/role/CondensedConsolidatedStatementOfCashFlows Condensed Consolidated Statement of Cash Flows Statements 6 false false R7.htm 1006000 - Statement - Condensed Consolidated Statement of Changes in Retained Earnings, Accumulated Other Comprehensive Loss and Noncontrolling Interests Sheet http://www.msasafety.com/role/CondensedConsolidatedStatementOfChangesInRetainedEarningsAccumulatedOtherComprehensiveLossAndNoncontrollingInterests Condensed Consolidated Statement of Changes in Retained Earnings, Accumulated Other Comprehensive Loss and Noncontrolling Interests Statements 7 false false R8.htm 1006001 - Statement - Condensed Consolidated Statement of Changes in Retained Earnings, Accumulated Other Comprehensive Loss and Noncontrolling Interests (Parenthetical) Sheet http://www.msasafety.com/role/CondensedConsolidatedStatementOfChangesInRetainedEarningsAccumulatedOtherComprehensiveLossAndNoncontrollingInterestsParenthetical Condensed Consolidated Statement of Changes in Retained Earnings, Accumulated Other Comprehensive Loss and Noncontrolling Interests (Parenthetical) Statements 8 false false R9.htm 2101100 - Disclosure - Basis of Presentation Sheet http://www.msasafety.com/role/BasisOfPresentation Basis of Presentation Notes 9 false false R10.htm 2102100 - Disclosure - Recently Adopted and Recently Issued Accounting Standards Sheet http://www.msasafety.com/role/RecentlyAdoptedAndRecentlyIssuedAccountingStandards Recently Adopted and Recently Issued Accounting Standards Notes 10 false false R11.htm 2104100 - Disclosure - Inventories Sheet http://www.msasafety.com/role/Inventories Inventories Notes 11 false false R12.htm 2105100 - Disclosure - Restructuring Charges Sheet http://www.msasafety.com/role/RestructuringCharges Restructuring Charges Notes 12 false false R13.htm 2106100 - Disclosure - Property, Plant and Equipment Sheet http://www.msasafety.com/role/PropertyPlantAndEquipment Property, Plant and Equipment Notes 13 false false R14.htm 2107100 - Disclosure - Reclassifications Out of Accumulated Other Comprehensive Loss Sheet http://www.msasafety.com/role/ReclassificationsOutOfAccumulatedOtherComprehensiveLoss Reclassifications Out of Accumulated Other Comprehensive Loss Notes 14 false false R15.htm 2108100 - Disclosure - Capital Stock Sheet http://www.msasafety.com/role/CapitalStock Capital Stock Notes 15 false false R16.htm 2109100 - Disclosure - Segment Information Sheet http://www.msasafety.com/role/SegmentInformation Segment Information Notes 16 false false R17.htm 2110100 - Disclosure - Earnings per Share Sheet http://www.msasafety.com/role/EarningsPerShare Earnings per Share Notes 17 false false R18.htm 2111100 - Disclosure - Income Taxes Sheet http://www.msasafety.com/role/IncomeTaxes Income Taxes Notes 18 false false R19.htm 2112100 - Disclosure - Stock Plans Sheet http://www.msasafety.com/role/StockPlans Stock Plans Notes 19 false false R20.htm 2113100 - Disclosure - Long-Term Debt Sheet http://www.msasafety.com/role/LongTermDebt Long-Term Debt Notes 20 false false R21.htm 2114100 - Disclosure - Goodwill and Intangible Assets Sheet http://www.msasafety.com/role/GoodwillAndIntangibleAssets Goodwill and Intangible Assets Notes 21 false false R22.htm 2114100 - Disclosure - Leases Sheet http://www.msasafety.com/role/Leases Leases Notes 22 false false R23.htm 2116100 - Disclosure - Pensions and Other Post-retirement Benefits Sheet http://www.msasafety.com/role/PensionsAndOtherPostRetirementBenefits Pensions and Other Post-retirement Benefits Notes 23 false false R24.htm 2117100 - Disclosure - Derivative Financial Instruments Sheet http://www.msasafety.com/role/DerivativeFinancialInstruments Derivative Financial Instruments Notes 24 false false R25.htm 2118100 - Disclosure - Fair Value Measurements Sheet http://www.msasafety.com/role/FairValueMeasurements Fair Value Measurements Notes 25 false false R26.htm 2119100 - Disclosure - Contingencies Sheet http://www.msasafety.com/role/Contingencies Contingencies Notes 26 false false R27.htm 2202201 - Disclosure - Recently Adopted and Recently Issued Accounting Standards - (Policies) Sheet http://www.msasafety.com/role/RecentlyAdoptedAndRecentlyIssuedAccountingStandardsPolicies Recently Adopted and Recently Issued Accounting Standards - (Policies) Policies http://www.msasafety.com/role/RecentlyAdoptedAndRecentlyIssuedAccountingStandards 27 false false R28.htm 2304301 - Disclosure - Inventories (Tables) Sheet http://www.msasafety.com/role/InventoriesTables Inventories (Tables) Tables http://www.msasafety.com/role/Inventories 28 false false R29.htm 2305301 - Disclosure - Restructuring Charges (Tables) Sheet http://www.msasafety.com/role/RestructuringChargesTables Restructuring Charges (Tables) Tables http://www.msasafety.com/role/RestructuringCharges 29 false false R30.htm 2306301 - Disclosure - Property, Plant and Equipment (Tables) Sheet http://www.msasafety.com/role/PropertyPlantAndEquipmentTables Property, Plant and Equipment (Tables) Tables http://www.msasafety.com/role/PropertyPlantAndEquipment 30 false false R31.htm 2307301 - Disclosure - Reclassifications Out of Accumulated Other Comprehensive Loss (Tables) Sheet http://www.msasafety.com/role/ReclassificationsOutOfAccumulatedOtherComprehensiveLossTables Reclassifications Out of Accumulated Other Comprehensive Loss (Tables) Tables http://www.msasafety.com/role/ReclassificationsOutOfAccumulatedOtherComprehensiveLoss 31 false false R32.htm 2308301 - Disclosure - Capital Stock - (Tables) Sheet http://www.msasafety.com/role/CapitalStockTables Capital Stock - (Tables) Tables http://www.msasafety.com/role/CapitalStock 32 false false R33.htm 2309301 - Disclosure - Segment Information (Tables) Sheet http://www.msasafety.com/role/SegmentInformationTables Segment Information (Tables) Tables http://www.msasafety.com/role/SegmentInformation 33 false false R34.htm 2310301 - Disclosure - Earnings per Share (Tables) Sheet http://www.msasafety.com/role/EarningsPerShareTables Earnings per Share (Tables) Tables http://www.msasafety.com/role/EarningsPerShare 34 false false R35.htm 2312301 - Disclosure - Stock Plans (Tables) Sheet http://www.msasafety.com/role/StockPlansTables Stock Plans (Tables) Tables http://www.msasafety.com/role/StockPlans 35 false false R36.htm 2313301 - Disclosure - Long-Term Debt (Tables) Sheet http://www.msasafety.com/role/LongTermDebtTables Long-Term Debt (Tables) Tables http://www.msasafety.com/role/LongTermDebt 36 false false R37.htm 2314301 - Disclosure - Goodwill and Intangible Assets (Tables) Sheet http://www.msasafety.com/role/GoodwillAndIntangibleAssetsTables Goodwill and Intangible Assets (Tables) Tables http://www.msasafety.com/role/GoodwillAndIntangibleAssets 37 false false R38.htm 2314301 - Disclosure - Leases (Tables) Sheet http://www.msasafety.com/role/LeasesTables Leases (Tables) Tables http://www.msasafety.com/role/Leases 38 false false R39.htm 2316301 - Disclosure - Pensions and Other Post-retirement Benefits (Tables) Sheet http://www.msasafety.com/role/PensionsAndOtherPostRetirementBenefitsTables Pensions and Other Post-retirement Benefits (Tables) Tables http://www.msasafety.com/role/PensionsAndOtherPostRetirementBenefits 39 false false R40.htm 2317301 - Disclosure - Derivative Financial Instruments (Tables) Sheet http://www.msasafety.com/role/DerivativeFinancialInstrumentsTables Derivative Financial Instruments (Tables) Tables http://www.msasafety.com/role/DerivativeFinancialInstruments 40 false false R41.htm 2319301 - Disclosure - Contingencies (Tables) Sheet http://www.msasafety.com/role/ContingenciesTables Contingencies (Tables) Tables http://www.msasafety.com/role/Contingencies 41 false false R42.htm 2402402 - Disclosure - Recently Adopted and Recently Issued Accounting Standards - Additional Information (Details) Sheet http://www.msasafety.com/role/RecentlyAdoptedAndRecentlyIssuedAccountingStandardsAdditionalInformationDetails Recently Adopted and Recently Issued Accounting Standards - Additional Information (Details) Details 42 false false R43.htm 2404402 - Disclosure - Inventories - Schedule of Inventories (Details) Sheet http://www.msasafety.com/role/InventoriesScheduleOfInventoriesDetails Inventories - Schedule of Inventories (Details) Details 43 false false R44.htm 2405402 - Disclosure - Restructuring Charges - Additional Information (Details) Sheet http://www.msasafety.com/role/RestructuringChargesAdditionalInformationDetails Restructuring Charges - Additional Information (Details) Details 44 false false R45.htm 2405403 - Disclosure - Restructuring Charges - Activity and Reserve Balance for Restructuring Charges by Segment (Details) Sheet http://www.msasafety.com/role/RestructuringChargesActivityAndReserveBalanceForRestructuringChargesBySegmentDetails Restructuring Charges - Activity and Reserve Balance for Restructuring Charges by Segment (Details) Details 45 false false R46.htm 2406402 - Disclosure - Property, Plant and Equipment (Details) Sheet http://www.msasafety.com/role/PropertyPlantAndEquipmentDetails Property, Plant and Equipment (Details) Details http://www.msasafety.com/role/PropertyPlantAndEquipmentTables 46 false false R47.htm 2407402 - Disclosure - Reclassifications Out of Accumulated Other Comprehensive Loss (Details) Sheet http://www.msasafety.com/role/ReclassificationsOutOfAccumulatedOtherComprehensiveLossDetails Reclassifications Out of Accumulated Other Comprehensive Loss (Details) Details http://www.msasafety.com/role/ReclassificationsOutOfAccumulatedOtherComprehensiveLossTables 47 false false R48.htm 2408402 - Disclosure - Capital Stock - Narrative (Details) Sheet http://www.msasafety.com/role/CapitalStockNarrativeDetails Capital Stock - Narrative (Details) Details 48 false false R49.htm 2408403 - Disclosure - Capital Stock - Schedule of Common Stock Activity (Details) Sheet http://www.msasafety.com/role/CapitalStockScheduleOfCommonStockActivityDetails Capital Stock - Schedule of Common Stock Activity (Details) Details 49 false false R50.htm 2409402 - Disclosure - Segment Information - Additional Information (Details) Sheet http://www.msasafety.com/role/SegmentInformationAdditionalInformationDetails Segment Information - Additional Information (Details) Details 50 false false R51.htm 2409403 - Disclosure - Segment Information - Schedule of Reportable Segment Information (Details) Sheet http://www.msasafety.com/role/SegmentInformationScheduleOfReportableSegmentInformationDetails Segment Information - Schedule of Reportable Segment Information (Details) Details 51 false false R52.htm 2409404 - Disclosure - Segment Information - Percentage of Total Sales by Product Group (Details) Sheet http://www.msasafety.com/role/SegmentInformationPercentageOfTotalSalesByProductGroupDetails Segment Information - Percentage of Total Sales by Product Group (Details) Details 52 false false R53.htm 2410402 - Disclosure - Earnings per Share (Details) Sheet http://www.msasafety.com/role/EarningsPerShareDetails Earnings per Share (Details) Details http://www.msasafety.com/role/EarningsPerShareTables 53 false false R54.htm 2411401 - Disclosure - Income Taxes (Details) Sheet http://www.msasafety.com/role/IncomeTaxesDetails Income Taxes (Details) Details http://www.msasafety.com/role/IncomeTaxes 54 false false R55.htm 2412402 - Disclosure - Stock Plans - Additional Information (Details) Sheet http://www.msasafety.com/role/StockPlansAdditionalInformationDetails Stock Plans - Additional Information (Details) Details 55 false false R56.htm 2412403 - Disclosure - Stock Plans - Schedule of Stock Compensation Expense (Details) Sheet http://www.msasafety.com/role/StockPlansScheduleOfStockCompensationExpenseDetails Stock Plans - Schedule of Stock Compensation Expense (Details) Details 56 false false R57.htm 2412404 - Disclosure - Stock Plans - Summary of Stock Option Activity (Details) Sheet http://www.msasafety.com/role/StockPlansSummaryOfStockOptionActivityDetails Stock Plans - Summary of Stock Option Activity (Details) Details 57 false false R58.htm 2412405 - Disclosure - Stock Plans - Summary of Restricted Stock and Unit Activity (Details) Sheet http://www.msasafety.com/role/StockPlansSummaryOfRestrictedStockAndUnitActivityDetails Stock Plans - Summary of Restricted Stock and Unit Activity (Details) Details 58 false false R59.htm 2412406 - Disclosure - Stock Plans - Weighted Average Risk Assumptions (Details) Sheet http://www.msasafety.com/role/StockPlansWeightedAverageRiskAssumptionsDetails Stock Plans - Weighted Average Risk Assumptions (Details) Details 59 false false R60.htm 2412407 - Disclosure - Stock Plans - Summary of Performance Stock Unit Activity (Details) Sheet http://www.msasafety.com/role/StockPlansSummaryOfPerformanceStockUnitActivityDetails Stock Plans - Summary of Performance Stock Unit Activity (Details) Details 60 false false R61.htm 2413402 - Disclosure - Long-Term Debt - Schedule of Debt (Details) Sheet http://www.msasafety.com/role/LongTermDebtScheduleOfDebtDetails Long-Term Debt - Schedule of Debt (Details) Details 61 false false R62.htm 2413403 - Disclosure - Long-Term Debt - Additional Information (Details) Sheet http://www.msasafety.com/role/LongTermDebtAdditionalInformationDetails Long-Term Debt - Additional Information (Details) Details 62 false false R63.htm 2414402 - Disclosure - Goodwill and Intangible Assets - Changes in Goodwill (Details) Sheet http://www.msasafety.com/role/GoodwillAndIntangibleAssetsChangesInGoodwillDetails Goodwill and Intangible Assets - Changes in Goodwill (Details) Details 63 false false R64.htm 2414402 - Disclosure - Leases - Narrative (Details) Sheet http://www.msasafety.com/role/LeasesNarrativeDetails Leases - Narrative (Details) Details 64 false false R65.htm 2414403 - Disclosure - Goodwill and Intangible Assets - Additional Information (Details) Sheet http://www.msasafety.com/role/GoodwillAndIntangibleAssetsAdditionalInformationDetails Goodwill and Intangible Assets - Additional Information (Details) Details 65 false false R66.htm 2414403 - Disclosure - Leases - Schedule of Leased Assets (Details) Sheet http://www.msasafety.com/role/LeasesScheduleOfLeasedAssetsDetails Leases - Schedule of Leased Assets (Details) Details 66 false false R67.htm 2414404 - Disclosure - Goodwill and Intangible Assets - Changes in Intangible Assets, Net of Accumulated Amortization (Details) Sheet http://www.msasafety.com/role/GoodwillAndIntangibleAssetsChangesInIntangibleAssetsNetOfAccumulatedAmortizationDetails Goodwill and Intangible Assets - Changes in Intangible Assets, Net of Accumulated Amortization (Details) Details 67 false false R68.htm 2414404 - Disclosure - Leases - Schedule of Future Lease Payments (Details) Sheet http://www.msasafety.com/role/LeasesScheduleOfFutureLeasePaymentsDetails Leases - Schedule of Future Lease Payments (Details) Details 68 false false R69.htm 2416402 - Disclosure - Pensions and Other Post-retirement Benefits - Components of Net Periodic Benefit Cost (Details) Sheet http://www.msasafety.com/role/PensionsAndOtherPostRetirementBenefitsComponentsOfNetPeriodicBenefitCostDetails Pensions and Other Post-retirement Benefits - Components of Net Periodic Benefit Cost (Details) Details 69 false false R70.htm 2416403 - Disclosure - Pensions and Other Post-retirement Benefits - Additional Information (Details) Sheet http://www.msasafety.com/role/PensionsAndOtherPostRetirementBenefitsAdditionalInformationDetails Pensions and Other Post-retirement Benefits - Additional Information (Details) Details 70 false false R71.htm 2417402 - Disclosure - Derivative Financial Instruments - Additional Information (Details) Sheet http://www.msasafety.com/role/DerivativeFinancialInstrumentsAdditionalInformationDetails Derivative Financial Instruments - Additional Information (Details) Details 71 false false R72.htm 2417403 - Disclosure - Derivative Financial Instruments - Balance Sheet Location and Fair Value of Assets Associated with Derivative Financial Instruments (Details) Sheet http://www.msasafety.com/role/DerivativeFinancialInstrumentsBalanceSheetLocationAndFairValueOfAssetsAssociatedWithDerivativeFinancialInstrumentsDetails Derivative Financial Instruments - Balance Sheet Location and Fair Value of Assets Associated with Derivative Financial Instruments (Details) Details 72 false false R73.htm 2417404 - Disclosure - Derivative Financial Instruments - Income Statement Location and Impact of Derivative Financial Instruments (Details) Sheet http://www.msasafety.com/role/DerivativeFinancialInstrumentsIncomeStatementLocationAndImpactOfDerivativeFinancialInstrumentsDetails Derivative Financial Instruments - Income Statement Location and Impact of Derivative Financial Instruments (Details) Details 73 false false R74.htm 2418401 - Disclosure - Fair Value Measurements (Details) Sheet http://www.msasafety.com/role/FairValueMeasurementsDetails Fair Value Measurements (Details) Details http://www.msasafety.com/role/FairValueMeasurements 74 false false R75.htm 2419402 - Disclosure - Contingencies - Additional Information (Details) Sheet http://www.msasafety.com/role/ContingenciesAdditionalInformationDetails Contingencies - Additional Information (Details) Details 75 false false R76.htm 2419403 - Disclosure - Contingencies - Summary of Cumulative Trauma Product Liability Claims Activity (Details) Sheet http://www.msasafety.com/role/ContingenciesSummaryOfCumulativeTraumaProductLiabilityClaimsActivityDetails Contingencies - Summary of Cumulative Trauma Product Liability Claims Activity (Details) Details 76 false false R77.htm 2419404 - Disclosure - Contingencies - Summary of Insurance Receivable Balances and Activity Related to Cumulative Trauma Product Liability Losses (Details) Sheet http://www.msasafety.com/role/ContingenciesSummaryOfInsuranceReceivableBalancesAndActivityRelatedToCumulativeTraumaProductLiabilityLossesDetails Contingencies - Summary of Insurance Receivable Balances and Activity Related to Cumulative Trauma Product Liability Losses (Details) Details 77 false false R78.htm 2419405 - Disclosure - Contingencies - Schedule of Notes Receivable Balances from Insurance Companies (Details) Notes http://www.msasafety.com/role/ContingenciesScheduleOfNotesReceivableBalancesFromInsuranceCompaniesDetails Contingencies - Schedule of Notes Receivable Balances from Insurance Companies (Details) Details 78 false false R79.htm 2419406 - Disclosure - Contingencies - Schedule of Product Warranty Liability (Details) Sheet http://www.msasafety.com/role/ContingenciesScheduleOfProductWarrantyLiabilityDetails Contingencies - Schedule of Product Warranty Liability (Details) Details 79 false false All Reports Book All Reports msa-20190331.xml msa-20190331.xsd msa-20190331_cal.xml msa-20190331_def.xml msa-20190331_lab.xml msa-20190331_pre.xml http://xbrl.sec.gov/invest/2013-01-31 http://fasb.org/us-gaap/2018-01-31 http://xbrl.sec.gov/dei/2018-01-31 http://fasb.org/srt/2018-01-31 true true