DEBT AND FINANCING ARRANGEMENTS - Summary of Receivables Sold (Details) - Receivables Purchase Agreement - USD ($) $ in Thousands	12 Months Ended
Sep. 30, 2024	Sep. 30, 2023
Transfer of Financial Assets Accounted for as Sales [Line Items]
Gross receivables sold	$ 379,094	$ 393,493
Cash collections reinvested	(384,594)	(388,283)
Net cash (payments) proceeds	$ (5,500)	$ 5,210

Transfer of Financial Assets Accounted for as Sales, Cash Proceeds (Payments) for Assets Derecognized, Amount, Net

No definition available.

Name:	matw_TransferOfFinancialAssetsAccountedForAsSalesCashProceedsPaymentsForAssetsDerecognizedAmountNet
Namespace Prefix:	matw_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Transfer Of Financial Assets Accounted For As Sales, Cash Proceeds Reinvested

+ References

No definition available.

+ Details

Name:	matw_TransferOfFinancialAssetsAccountedForAsSalesCashProceedsReinvested
Namespace Prefix:	matw_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount, before counterparty netting, of cash proceeds received in transfers of derecognized financial assets from transactions which comprise an initial transfer and an agreement entered into in contemplation of the initial transfer resulting in retention of substantially all of the exposure to the economic return throughout the term of the transaction.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 4D
-Subparagraph (b)
-SubTopic 20
-Topic 860
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481326/860-20-50-4D

+ Details

Name:	us-gaap_TransferOfFinancialAssetsAccountedForAsSalesCashProceedsReceivedForAssetsDerecognizedAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- 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_TransferOfFinancialAssetsAccountedForAsSalesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_DebtInstrumentAxis=matw_ReceivablesPurchaseAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: