XML 81 R70.htm IDEA: XBRL DOCUMENT
v3.20.2

Contingencies - Summary of Cumulative Trauma Product Liability Claims Activity (Details) - lawsuit | 6 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2020 | Sep. 30, 2020
Lawsuit |  |
Loss Contingency, Quantities [Roll Forward] |  |
Beginning of period | 1,605 | 1,605
New lawsuits | 346 | 273
Settled and dismissed lawsuits | (222) | (135)
End of period |  | 1,743
Damages from Product Defects |  |
Loss Contingency, Quantities [Roll Forward] |  |
Beginning of period | 2,456 | 2,456
New lawsuits | 486 | 528
Settled and dismissed lawsuits | (385) | (144)
End of period |  | 2,840

X
- Definition Loss Contingency, Quantities [Roll Forward] + References No definition available. + Details
Name: | msa_LossContingencyQuantitiesRollForward
Namespace Prefix: | msa_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of claims settled and dismissed during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14435-108349 + Details
Name: | us-gaap_LossContingencyClaimsSettledAndDismissedNumber
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The total number of new claims filed pertaining to a loss contingency during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14435-108349 + Details
Name: | us-gaap_LossContingencyNewClaimsFiledNumber
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of pending claims pertaining to a loss contingency. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14435-108349 + Details
Name: | us-gaap_LossContingencyPendingClaimsNumber
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=msa_LawsuitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=us-gaap_DamagesFromProductDefectsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |