XML 64 R52.htm IDEA: XBRL DOCUMENT v3.19.2

Revenue from Contracts with Customers - Summary of Revenue from Contracts with Customers (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Disaggregation of Revenue [Line Items]
Net revenues	$ 474,110	$ 573,140	$ 937,671	$ 1,127,415
Vacuum & Analysis [Member]
Disaggregation of Revenue [Line Items]
Net revenues	235,655	368,328	470,010	716,672
Light & Motion [Member]
Disaggregation of Revenue [Line Items]
Net revenues	182,579	204,812	376,567	410,743
Equipment & Solutions [Member]
Disaggregation of Revenue [Line Items]
Net revenues	55,876		91,094
Products [Member]
Disaggregation of Revenue [Line Items]
Net revenues	401,326	509,999	798,689	1,006,676
Products [Member] | Vacuum & Analysis [Member]
Disaggregation of Revenue [Line Items]
Net revenues	191,760	321,454	384,408	625,790
Products [Member] | Light & Motion [Member]
Disaggregation of Revenue [Line Items]
Net revenues	167,363	188,545	346,060	380,886
Products [Member] | Equipment & Solutions [Member]
Disaggregation of Revenue [Line Items]
Net revenues	42,203		68,221
Services [Member]
Disaggregation of Revenue [Line Items]
Net revenues	72,784	63,141	138,982	120,739
Services [Member] | Vacuum & Analysis [Member]
Disaggregation of Revenue [Line Items]
Net revenues	43,895	46,874	85,602	90,882
Services [Member] | Light & Motion [Member]
Disaggregation of Revenue [Line Items]
Net revenues	15,216	$ 16,267	30,507	$ 29,857
Services [Member] | Equipment & Solutions [Member]
Disaggregation of Revenue [Line Items]
Net revenues	$ 13,673		$ 22,873

X

- Definition

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.

+ References

No definition available.

+ Details

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

X

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

+ Details

Name:	us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=mksi_VacuumAndAnalysisSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=mksi_LightAndMotionSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=mksi_EquipmentAndSolutionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=us-gaap_ProductMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=us-gaap_ServiceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: