XML 61 R50.htm IDEA: XBRL DOCUMENT
v3.21.1

Segment Information - Percentage of Total Sales by Product Group (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Revenue from External Customer [Line Items] |  |
Revenues | $ 308,428 | $ 341,145
Breathing Apparatus |  |
Revenue from External Customer [Line Items] |  |
Revenues | 69,644 | 75,844
Fixed Gas & Flame Detection |  |
Revenue from External Customer [Line Items] |  |
Revenues | 60,119 | 69,911
Firefighter Helmets & Protective Apparel |  |
Revenue from External Customer [Line Items] |  |
Revenues | 46,010 | 42,547
Portable Gas Detection |  |
Revenue from External Customer [Line Items] |  |
Revenues | 37,429 | 41,052
Industrial Head Protection |  |
Revenue from External Customer [Line Items] |  |
Revenues | 32,696 | 35,332
Fall Protection |  |
Revenue from External Customer [Line Items] |  |
Revenues | 26,067 | 27,428
Other |  |
Revenue from External Customer [Line Items] |  |
Revenues | $ 36,463 | $ 49,031
Sales |  |
Revenue from External Customer [Line Items] |  |
Concentration risk percentage | 100.00% | 100.00%
Sales | Breathing Apparatus |  |
Revenue from External Customer [Line Items] |  |
Concentration risk percentage | 23.00% | 22.00%
Sales | Fixed Gas & Flame Detection |  |
Revenue from External Customer [Line Items] |  |
Concentration risk percentage | 19.00% | 21.00%
Sales | Firefighter Helmets & Protective Apparel |  |
Revenue from External Customer [Line Items] |  |
Concentration risk percentage | 15.00% | 12.00%
Sales | Portable Gas Detection |  |
Revenue from External Customer [Line Items] |  |
Concentration risk percentage | 12.00% | 12.00%
Sales | Industrial Head Protection |  |
Revenue from External Customer [Line Items] |  |
Concentration risk percentage | 11.00% | 10.00%
Sales | Fall Protection |  |
Revenue from External Customer [Line Items] |  |
Concentration risk percentage | 8.00% | 8.00%
Sales | Other |  |
Revenue from External Customer [Line Items] |  |
Concentration risk percentage | 12.00% | 15.00%
Americas |  |
Revenue from External Customer [Line Items] |  |
Revenues | $ 208,340 | $ 231,253
Americas | Breathing Apparatus |  |
Revenue from External Customer [Line Items] |  |
Revenues | 48,798 | 52,693
Americas | Fixed Gas & Flame Detection |  |
Revenue from External Customer [Line Items] |  |
Revenues | 36,277 | 41,247
Americas | Firefighter Helmets & Protective Apparel |  |
Revenue from External Customer [Line Items] |  |
Revenues | 34,988 | 35,113
Americas | Portable Gas Detection |  |
Revenue from External Customer [Line Items] |  |
Revenues | 25,702 | 27,648
Americas | Industrial Head Protection |  |
Revenue from External Customer [Line Items] |  |
Revenues | 25,111 | 27,555
Americas | Fall Protection |  |
Revenue from External Customer [Line Items] |  |
Revenues | 15,672 | 17,697
Americas | Other |  |
Revenue from External Customer [Line Items] |  |
Revenues | $ 21,792 | $ 29,300
Americas | Sales |  |
Revenue from External Customer [Line Items] |  |
Concentration risk percentage | 100.00% | 100.00%
Americas | Sales | Breathing Apparatus |  |
Revenue from External Customer [Line Items] |  |
Concentration risk percentage | 23.00% | 23.00%
Americas | Sales | Fixed Gas & Flame Detection |  |
Revenue from External Customer [Line Items] |  |
Concentration risk percentage | 17.00% | 18.00%
Americas | Sales | Firefighter Helmets & Protective Apparel |  |
Revenue from External Customer [Line Items] |  |
Concentration risk percentage | 17.00% | 15.00%
Americas | Sales | Portable Gas Detection |  |
Revenue from External Customer [Line Items] |  |
Concentration risk percentage | 12.00% | 12.00%
Americas | Sales | Industrial Head Protection |  |
Revenue from External Customer [Line Items] |  |
Concentration risk percentage | 12.00% | 12.00%
Americas | Sales | Fall Protection |  |
Revenue from External Customer [Line Items] |  |
Concentration risk percentage | 8.00% | 8.00%
Americas | Sales | Other |  |
Revenue from External Customer [Line Items] |  |
Concentration risk percentage | 11.00% | 12.00%
International |  |
Revenue from External Customer [Line Items] |  |
Revenues | $ 100,088 | $ 109,892
International | Breathing Apparatus |  |
Revenue from External Customer [Line Items] |  |
Revenues | 20,846 | 23,151
International | Fixed Gas & Flame Detection |  |
Revenue from External Customer [Line Items] |  |
Revenues | 23,842 | 28,664
International | Firefighter Helmets & Protective Apparel |  |
Revenue from External Customer [Line Items] |  |
Revenues | 11,022 | 7,434
International | Portable Gas Detection |  |
Revenue from External Customer [Line Items] |  |
Revenues | 11,727 | 13,404
International | Industrial Head Protection |  |
Revenue from External Customer [Line Items] |  |
Revenues | 7,585 | 7,777
International | Fall Protection |  |
Revenue from External Customer [Line Items] |  |
Revenues | 10,395 | 9,731
International | Other |  |
Revenue from External Customer [Line Items] |  |
Revenues | $ 14,671 | $ 19,731
International | Sales |  |
Revenue from External Customer [Line Items] |  |
Concentration risk percentage | 100.00% | 100.00%
International | Sales | Breathing Apparatus |  |
Revenue from External Customer [Line Items] |  |
Concentration risk percentage | 21.00% | 21.00%
International | Sales | Fixed Gas & Flame Detection |  |
Revenue from External Customer [Line Items] |  |
Concentration risk percentage | 24.00% | 26.00%
International | Sales | Firefighter Helmets & Protective Apparel |  |
Revenue from External Customer [Line Items] |  |
Concentration risk percentage | 11.00% | 7.00%
International | Sales | Portable Gas Detection |  |
Revenue from External Customer [Line Items] |  |
Concentration risk percentage | 12.00% | 12.00%
International | Sales | Industrial Head Protection |  |
Revenue from External Customer [Line Items] |  |
Concentration risk percentage | 8.00% | 7.00%
International | Sales | Fall Protection |  |
Revenue from External Customer [Line Items] |  |
Concentration risk percentage | 10.00% | 9.00%
International | Sales | Other |  |
Revenue from External Customer [Line Items] |  |
Concentration risk percentage | 14.00% | 18.00%

X
- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13531-108611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13537-108611 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592 + Details
Name: | us-gaap_ConcentrationRiskPercentage1
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
Name: | us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | srt_ProductOrServiceAxis=msa_BreathingApparatusMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=msa_FixGasFlameDetectionInstrumentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=msa_FirefighterHelmetsandProtectiveApparelMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=msa_PortableInstrumentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=msa_HeadProtectionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=msa_FallProtectionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=msa_OtherProductsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_SalesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=msa_AmericasSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=msa_InternationalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |