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Inventories, net - Additional Details (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Inventory Disclosure [Abstract] |  |
Notional amount of nonderivative instruments | $ 373.1 | $ 480.2
Inventory excess and obsolete reserve | $ 19.8 | $ 23.9

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- Definition Inventory Excess And Obsolete Reserve + References No definition available. + Details
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Namespace Prefix: | mtrn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | duration

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- Definition Nominal or face amount used to calculate payments on a nonderivative instrument. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration