Cash and Cash Equivalents (Details) $ in Thousands	Mar. 31, 2022 USD ($)
Cash and Cash Equivalents [Abstract]
Gross cash pool position	$ 64,304
Less: cash pool borrowings	(62,039)
Net cash pool position	$ 2,265

Cash Balance, Collateral, Obligation to Return Cash

No definition available.

Name:	msa_CashBalanceCollateralObligationToReturnCash
Namespace Prefix:	msa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant