Name:	mtrn_ChangeinUnbilledReceivables
Namespace Prefix:	mtrn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

ContractwithCustomerAssetNetCurrentChange

No definition available.

Name:	mtrn_ContractwithCustomerAssetNetCurrentChange
Namespace Prefix:	mtrn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

ContractwithCustomerAssetPercentChange

No definition available.

Name:	mtrn_ContractwithCustomerAssetPercentChange
Namespace Prefix:	mtrn_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

ContractwithCustomerLiabilityPercentChange

No definition available.

Name:	mtrn_ContractwithCustomerLiabilityPercentChange
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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

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.

No definition available.

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

Amount, before allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-Name Accounting Standards Codification
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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Amount of increase (decrease) in deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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Unbilled amounts due for services rendered or to be rendered, actions taken or to be taken, or a promise to refrain from taking certain actions in accordance with the terms of a legally binding agreement between the entity and, at a minimum, one other party. An example would be amounts associated with contracts or programs where the recognized revenue for performance thereunder exceeds the amounts billed under the terms thereof as of the date of the balance sheet.

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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=123371682&loc=d3e55302-109406