XML 52 R40.htm IDEA: XBRL DOCUMENT v3.22.1

Derivative Financial Instruments (Details) $ in Millions	Apr. 03, 2022 USD ($) Subsidiary	Jul. 01, 2018 USD ($)
Minimum [Member]
Derivative Financial Instruments [Abstract]
Number of foreign subsidiaries in which portion of net investment is hedged | Subsidiary	1
Cash Flow Hedge [Member] | Interest Rate Swap [Member] | Designated as Hedging Instrument [Member]
Derivative Financial Instruments [Abstract]
Notional amount		$ 150.0
Cash Flow Hedge [Member] | Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Other Non-Current Liabilities [Member]
Derivative Financial Instruments [Abstract]
Fair value of derivative liability	$ 1.6
Net Investment Hedge [Member] | Cross Currency Rate Swap [Member] | Designated as Hedging Instrument [Member]
Derivative Financial Instruments [Abstract]
Notional amount		$ 150.0
Net Investment Hedge [Member] | Cross Currency Rate Swap [Member] | Designated as Hedging Instrument [Member] | Other Assets and Deferred Charges [Member]
Derivative Financial Instruments [Abstract]
Fair value of derivative asset	$ 10.0

X

- Definition

The number of foreign subsidiaries in which a portion of the Company's net investment is hedged from time to time in order to protect the value of investments in foreign operations against adverse changes in foreign currency exchange rates.

+ References

No definition available.

+ Details

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Namespace Prefix:	mtx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- References

No definition available.

+ Details

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

X

- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959

+ Details

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Balance Type:	na
Period Type:	instant

X

- Definition

Fair value of all derivative assets designated as fair value hedging instruments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5624163-113959

+ Details

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

X

- Definition

Fair value of all derivative liabilities designated as fair value hedging instruments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5624163-113959

+ Details

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X

- Details

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X

- Details

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X

- Details

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X

- Details

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X

- Details

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- Details

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- Details

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