XML 107 R93.htm IDEA: XBRL DOCUMENT
v3.10.0.1

RELATED PARTY TRANSACTION RELATED PARTY TRANSACTION - Narrative (Details) - $ / shares |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | ---
May 12, 2016 | May 31, 2016 | Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2016
Related Party Transaction [Line Items] |  |  |  |  |
Purchase of common shares (in shares) |  |  | 393,864 | 212,424 | 1,132,452
Schawk Inc | Director and President |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Purchase of common shares (in shares) |  | 970,000 |  |  |
Purchase price (in dollars per share) |  | $ 50.6921625 |  |  |
Average of high/low trading prices (as a percent) | 96.76% |  |  |  |

X
- Definition Shares Repurchased During Period, Average of High and Low Trading Prices + References No definition available. + Details
Name: | matw_SharesRepurchasedDuringPeriodAverageOfHighAndLowTradingPrices
Namespace Prefix: | matw_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination. + References No definition available. + Details
Name: | us-gaap_BusinessAcquisitionSharePrice
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

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

X
- Definition Number of shares that have been repurchased during the period and are being held in treasury. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21463-112644 + Details
Name: | us-gaap_TreasuryStockSharesAcquired
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=matw_SchawkIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=matw_DirectorandPresidentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |