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Subsequent Events - Additional Information (Details) - USD ($) $ in Millions				9 Months Ended
	Oct. 31, 2023	Oct. 03, 2023	Oct. 02, 2023	Sep. 30, 2023
Term SOFR Borrowings [Member]
Subsequent Event [Line Items]
Debt instrument, interest rate				2.50%
USD Tranche B [Member] | Term SOFR Borrowings [Member]
Subsequent Event [Line Items]
Debt instrument, interest rate				2.75%
USD Tranche B [Member] | Base Rate Borrowings [Member]
Subsequent Event [Line Items]
Debt instrument, interest rate				1.75%
USD Tranche A [Member] | Term SOFR Borrowings [Member]
Subsequent Event [Line Items]
Debt instrument, interest rate				2.50%
USD Tranche A [Member] | Base Rate Borrowings [Member]
Subsequent Event [Line Items]
Debt instrument, interest rate				1.50%
Subsequent Event [Member]
Subsequent Event [Line Items]
Repriced loans issuance discount rate		0.25%
Subsequent Event [Member] | USD Tranche B [Member]
Subsequent Event [Line Items]
Prepayment premium percentage of aggregate principal amount		1.00%
Subsequent Event [Member] | USD Tranche B [Member] | Term SOFR Borrowings [Member]
Subsequent Event [Line Items]
Debt instrument, interest rate		2.50%	2.75%
Subsequent Event [Member] | USD Tranche B [Member] | Base Rate Borrowings [Member]
Subsequent Event [Line Items]
Debt instrument, interest rate		1.50%	1.75%
Subsequent Event [Member] | USD Tranche A [Member]
Subsequent Event [Line Items]
Loan voluntary prepayment amount	$ 100

X

- Definition

Loan Voluntary Prepayment Amount

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	duration

X

- Definition

Prepayment premium percentage of aggregate principal amount.

+ References

No definition available.

+ Details

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Namespace Prefix:	mksi_
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X

- Definition

Repriced loans issuance discount rate.

+ References

No definition available.

+ Details

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X

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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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

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- Details

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- Details

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- Details

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- Details

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- Details

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