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v2.4.1.9

Segment Information - Schedule Of Reportable Segment Information (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales to external customers | $ 311,188 us-gaap_SalesRevenueNet | $ 275,159 us-gaap_SalesRevenueNet | $ 282,493 us-gaap_SalesRevenueNet | $ 265,045 us-gaap_SalesRevenueNet | $ 291,429 us-gaap_SalesRevenueNet | $ 264,884 us-gaap_SalesRevenueNet | $ 285,859 us-gaap_SalesRevenueNet | $ 269,886 us-gaap_SalesRevenueNet | $ 1,133,885 us-gaap_SalesRevenueNet |  | $ 1,112,058 us-gaap_SalesRevenueNet |  | $ 1,110,443 us-gaap_SalesRevenueNet |
Intercompany sales |  |  |  |  |  |  |  |  | 0 msa_IntercompanySales |  | 0 msa_IntercompanySales |  | 0 msa_IntercompanySales |
Net income: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Continuing operations | 33,119 us-gaap_IncomeLossFromContinuingOperations | 18,674 us-gaap_IncomeLossFromContinuingOperations | 22,132 us-gaap_IncomeLossFromContinuingOperations | 13,522 us-gaap_IncomeLossFromContinuingOperations | 24,929 us-gaap_IncomeLossFromContinuingOperations | 18,987 us-gaap_IncomeLossFromContinuingOperations | 23,315 us-gaap_IncomeLossFromContinuingOperations | 18,627 us-gaap_IncomeLossFromContinuingOperations | 87,447 us-gaap_IncomeLossFromContinuingOperations |  | 85,858 us-gaap_IncomeLossFromContinuingOperations |  | 87,557 us-gaap_IncomeLossFromContinuingOperations |
Discontinued operations | (432)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity | 631 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity | 356 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity | 504 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity | 482 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity | 514 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity | 734 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity | 659 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity | 1,059 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity |  | 2,389 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity |  | 3,080 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity |
Total assets | 1,264,792 us-gaap_Assets |  |  |  | 1,234,270 us-gaap_Assets |  |  |  | 1,264,792 us-gaap_Assets |  | 1,234,270 us-gaap_Assets |  | 1,111,746 us-gaap_Assets |
Interest income |  |  |  |  |  |  |  |  | 1,822 us-gaap_InterestIncomeOperating |  | 1,142 us-gaap_InterestIncomeOperating |  | 1,411 us-gaap_InterestIncomeOperating |
Interest expense |  |  |  |  |  |  |  |  | 9,851 us-gaap_InterestExpense |  | 10,677 us-gaap_InterestExpense |  | 11,344 us-gaap_InterestExpense |
Noncash items: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 29,921 us-gaap_DepreciationAndAmortization |  | 30,764 us-gaap_DepreciationAndAmortization |  | 31,702 us-gaap_DepreciationAndAmortization |
Pension income (expense) |  |  |  |  |  |  |  |  | (4,836)us-gaap_PensionExpense |  | (12,361)us-gaap_PensionExpense |  | (3,673)us-gaap_PensionExpense |
Income tax provision |  |  |  |  |  |  |  |  | 41,044 us-gaap_IncomeTaxExpenseBenefit | [1] | 35,145 us-gaap_IncomeTaxExpenseBenefit | [1] | 41,401 us-gaap_IncomeTaxExpenseBenefit | [1]
Capital expenditures |  |  |  |  |  |  |  |  | 33,583 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment |  | 36,517 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment |  | 32,209 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment |
Long-Lived Assets | 151,352 us-gaap_NoncurrentAssets |  |  |  |  |  |  |  | 151,352 us-gaap_NoncurrentAssets |  |  |  |  |
Property, plant, and equipment | 151,352 us-gaap_PropertyPlantAndEquipmentNet |  |  |  | 152,755 us-gaap_PropertyPlantAndEquipmentNet |  |  |  | 151,352 us-gaap_PropertyPlantAndEquipmentNet |  | 152,755 us-gaap_PropertyPlantAndEquipmentNet |  | 147,465 us-gaap_PropertyPlantAndEquipmentNet |
North America |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales to external customers |  |  |  |  |  |  |  |  | 547,739 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |  | 533,161 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |  | 532,213 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |
Intercompany sales |  |  |  |  |  |  |  |  | 116,795 msa_IntercompanySales / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |  | 120,952 msa_IntercompanySales / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |  | 112,964 msa_IntercompanySales / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |
Net income: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Continuing operations |  |  |  |  |  |  |  |  | 73,874 us-gaap_IncomeLossFromContinuingOperations / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |  | 62,835 us-gaap_IncomeLossFromContinuingOperations / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |  | 58,376 us-gaap_IncomeLossFromContinuingOperations / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |
Discontinued operations |  |  |  |  |  |  |  |  | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |  | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |  | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |
Total assets | 996,116 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |  |  |  | 828,413 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |  |  |  | 996,116 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |  | 828,413 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |  | 718,545 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |
Interest income |  |  |  |  |  |  |  |  | 995 us-gaap_InterestIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |  | 243 us-gaap_InterestIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |  | 364 us-gaap_InterestIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |
Interest expense |  |  |  |  |  |  |  |  | 30 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |  | 52 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |  | 106 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |
Noncash items: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 18,635 us-gaap_DepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |  | 19,639 us-gaap_DepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |  | 21,382 us-gaap_DepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |
Pension income (expense) |  |  |  |  |  |  |  |  | 1,977 us-gaap_PensionExpense / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |  | (4,765)us-gaap_PensionExpense / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |  | 2,138 us-gaap_PensionExpense / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |
Income tax provision |  |  |  |  |  |  |  |  | 38,911 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |  | 31,654 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |  | 35,537 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |
Capital expenditures |  |  |  |  |  |  |  |  | 18,377 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |  | 17,887 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |  | 20,119 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |
Property, plant, and equipment | 86,718 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |  |  |  | 84,104 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |  |  |  | 86,718 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |  | 84,104 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |  | 84,923 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = msa_NorthAmericaSegmentMember |
Europe |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales to external customers |  |  |  |  |  |  |  |  | 321,618 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |  | 293,092 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |  | 290,382 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |
Intercompany sales |  |  |  |  |  |  |  |  | 113,914 msa_IntercompanySales / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |  | 98,491 msa_IntercompanySales / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |  | 98,096 msa_IntercompanySales / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |
Net income: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Continuing operations |  |  |  |  |  |  |  |  | 22,187 us-gaap_IncomeLossFromContinuingOperations / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |  | 20,204 us-gaap_IncomeLossFromContinuingOperations / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |  | 21,553 us-gaap_IncomeLossFromContinuingOperations / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |
Discontinued operations |  |  |  |  |  |  |  |  | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |  | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |  | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |
Total assets | 390,328 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |  |  |  | 394,463 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |  |  |  | 390,328 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |  | 394,463 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |  | 352,601 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |
Interest income |  |  |  |  |  |  |  |  | 111 us-gaap_InterestIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |  | 90 us-gaap_InterestIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |  | 147 us-gaap_InterestIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |
Interest expense |  |  |  |  |  |  |  |  | 104 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |  | 175 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |  | 350 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |
Noncash items: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 6,357 us-gaap_DepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |  | 5,357 us-gaap_DepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |  | 5,354 us-gaap_DepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |
Pension income (expense) |  |  |  |  |  |  |  |  | (6,234)us-gaap_PensionExpense / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |  | (6,328)us-gaap_PensionExpense / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |  | (4,700)us-gaap_PensionExpense / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |
Income tax provision |  |  |  |  |  |  |  |  | 9,195 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |  | 6,735 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |  | 7,771 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |
Capital expenditures |  |  |  |  |  |  |  |  | 10,859 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |  | 11,833 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |  | 5,106 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |
Property, plant, and equipment | 32,892 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |  |  |  | 33,162 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |  |  |  | 32,892 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |  | 33,162 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |  | 25,460 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = msa_EuropeSegmentMember |
International Segment |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales to external customers |  |  |  |  |  |  |  |  | 264,528 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |  | 285,805 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |  | 287,848 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |
Intercompany sales |  |  |  |  |  |  |  |  | 18,449 msa_IntercompanySales / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |  | 22,136 msa_IntercompanySales / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |  | 20,031 msa_IntercompanySales / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |
Net income: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Continuing operations |  |  |  |  |  |  |  |  | 15,234 us-gaap_IncomeLossFromContinuingOperations / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |  | 27,206 us-gaap_IncomeLossFromContinuingOperations / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |  | 24,819 us-gaap_IncomeLossFromContinuingOperations / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |
Discontinued operations |  |  |  |  |  |  |  |  | 1,059 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |  | 2,389 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |  | 3,080 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |
Total assets | 220,004 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |  |  |  | 209,578 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |  |  |  | 220,004 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |  | 209,578 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |  | 209,979 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |
Interest income |  |  |  |  |  |  |  |  | 711 us-gaap_InterestIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |  | 809 us-gaap_InterestIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |  | 886 us-gaap_InterestIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |
Interest expense |  |  |  |  |  |  |  |  | 16 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |  | 2 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |  | 78 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |
Noncash items: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 4,929 us-gaap_DepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |  | 5,768 us-gaap_DepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |  | 4,966 us-gaap_DepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |
Pension income (expense) |  |  |  |  |  |  |  |  | (579)us-gaap_PensionExpense / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |  | (1,268)us-gaap_PensionExpense / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |  | (1,111)us-gaap_PensionExpense / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |
Income tax provision |  |  |  |  |  |  |  |  | 6,529 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |  | 9,069 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |  | 10,450 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |
Capital expenditures |  |  |  |  |  |  |  |  | 4,347 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |  | 6,797 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |  | 6,984 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |
Property, plant, and equipment | 31,741 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |  |  |  | 35,488 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |  |  |  | 31,741 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |  | 35,488 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |  | 37,081 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = msa_InternationalSegmentMember |
Segment Reconciling Items |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales to external customers |  |  |  |  |  |  |  |  | 0 us-gaap_SalesRevenueNet / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |  | 0 us-gaap_SalesRevenueNet / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |  | 0 us-gaap_SalesRevenueNet / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |
Intercompany sales |  |  |  |  |  |  |  |  | (249,158)msa_IntercompanySales / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |  | (241,579)msa_IntercompanySales / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |  | (231,091)msa_IntercompanySales / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |
Net income: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Continuing operations |  |  |  |  |  |  |  |  | (23,848)us-gaap_IncomeLossFromContinuingOperations / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |  | (24,387)us-gaap_IncomeLossFromContinuingOperations / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |  | (17,191)us-gaap_IncomeLossFromContinuingOperations / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |
Discontinued operations |  |  |  |  |  |  |  |  | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |  | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |  | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |
Total assets | (341,656)us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |  |  |  | (198,184)us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |  |  |  | (341,656)us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |  | (198,184)us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |  | (169,379)us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |
Interest income |  |  |  |  |  |  |  |  | 5 us-gaap_InterestIncomeOperating / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |  | 0 us-gaap_InterestIncomeOperating / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |  | 14 us-gaap_InterestIncomeOperating / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |
Interest expense |  |  |  |  |  |  |  |  | 9,701 us-gaap_InterestExpense / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |  | 10,448 us-gaap_InterestExpense / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |  | 10,810 us-gaap_InterestExpense / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |
Noncash items: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 0 us-gaap_DepreciationAndAmortization / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |  | 0 us-gaap_DepreciationAndAmortization / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |  | 0 us-gaap_DepreciationAndAmortization / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |
Pension income (expense) |  |  |  |  |  |  |  |  | 0 us-gaap_PensionExpense / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |  | 0 us-gaap_PensionExpense / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |  | 0 us-gaap_PensionExpense / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |
Income tax provision |  |  |  |  |  |  |  |  | (13,591)us-gaap_IncomeTaxExpenseBenefit / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |  | (12,313)us-gaap_IncomeTaxExpenseBenefit / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |  | (12,357)us-gaap_IncomeTaxExpenseBenefit / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |
Capital expenditures |  |  |  |  |  |  |  |  | 0 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |  | 0 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |  | 0 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |
Property, plant, and equipment | $ 1 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |  |  |  | $ 1 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |  |  |  | $ 1 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |  | $ 1 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |  | $ 1 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_ConsolidationItemsAxis = us-gaap_MaterialReconcilingItemsMember |
[1] | The components of income before income taxes and the provision for income taxes relate to continuing operations.

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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.18) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 18 -Article 5 + Details
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- Definition Amount of income (loss) from continuing operations attributable to the parent. Also defined as revenue less expenses and taxes from ongoing operations before extraordinary items but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4613673-111683 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.13) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition Amount of income (loss) from a disposal group, net of income tax, reported as a separate component of income before extraordinary items after deduction or consideration of the amount allocable to noncontrolling interests. Includes, net of tax, income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569616-111683 + Details
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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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