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Subsequent Events - Additional Information (Detail) € in Millions, $ in Millions	Oct. 23, 2024 USD ($)	Oct. 23, 2024 EUR (€)	Jul. 23, 2024 USD ($)	Jul. 23, 2024 EUR (€)
Subsequent Event [Line Items]
Loan voluntary prepayment amount | $			$ 110
Euro Tranche B [Member]
Subsequent Event [Line Items]
Loan voluntary prepayment amount | €				€ 38
Subsequent Event [Member] | Euro Tranche B [Member]
Subsequent Event [Line Items]
Loan voluntary prepayment amount	$ 216	€ 200

X

- Definition

Loan voluntary prepayment amount.

+ References

No definition available.

+ Details

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Namespace Prefix:	mksi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481674/830-30-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483399/855-10-50-2

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: