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Cash and Cash Equivalents (Detail) $ in Thousands | Dec. 31, 2024 USD ($)
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Cash and Cash Equivalents [Abstract] |
Gross cash pool position | $ 73,721
Less: cash pool borrowings | (55,582)
Net cash pool position | $ 18,139

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- Definition Cash Balance, Amount Offset Against Collateral + References No definition available. + Details
Name: | msa_CashBalanceAmountOffsetAgainstCollateral
Namespace Prefix: | msa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Cash Balance, Collateral, Obligation to Return Cash + References No definition available. + Details
Name: | msa_CashBalanceCollateralObligationToReturnCash
Namespace Prefix: | msa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Cash Balance Subject To Master Netting Arrangement + References No definition available. + Details
Name: | msa_CashBalanceSubjectToMasterNettingArrangement
Namespace Prefix: | msa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_CashAndCashEquivalentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration