XML 55 R44.htm IDEA: XBRL DOCUMENT v3.10.0.1

Revenue From Contracts With Customers - Summary of Revenue from Contracts with Customers (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue	$ 573,140	$ 480,757	$ 1,127,415	$ 917,910
Products [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue	509,999	426,317	1,006,676	814,255
Services [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue	63,141	54,440	120,739	103,655
Vacuum & Analysis [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue	368,328	309,961	716,672	587,945
Vacuum & Analysis [Member] | Products [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue	321,454	269,665	625,790	511,120
Vacuum & Analysis [Member] | Services [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue	46,874	40,296	90,882	76,825
Light & Motion [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue	204,812	170,796	410,743	329,965
Light & Motion [Member] | Products [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue	188,545	156,652	380,886	303,135
Light & Motion [Member] | Services [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue	$ 16,267	$ 14,144	$ 29,857	$ 26,830

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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=109196051&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:	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:

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: