XML 102 R88.htm IDEA: XBRL DOCUMENT v3.8.0.1

Business Segment, Geographic Area, Product and Significant Customer Information - Worldwide Net Revenue for Each Group of Products (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenue from External Customer [Line Items]
Net sales from product groups	$ 554,275	$ 437,153
Analytical and Control Solutions Products [Member]
Revenue from External Customer [Line Items]
Net sales from product groups	33,712	31,820
Power Plasma and Reactive Gas Solutions Products [Member]
Revenue from External Customer [Line Items]
Net sales from product groups	167,052	122,800
Vacuum Solutions Products [Member]
Revenue from External Customer [Line Items]
Net sales from product groups	147,580	123,364
Lasers Products [Member]
Revenue from External Customer [Line Items]
Net sales from product groups	74,797	44,944
Optics Products [Member]
Revenue from External Customer [Line Items]
Net sales from product groups	54,379	46,505
Photonics Products [Member]
Revenue from External Customer [Line Items]
Net sales from product groups	$ 76,755	$ 67,720

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

X

- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

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

X

- Details

Name:	us-gaap_ProductOrServiceAxis=mksi_AnalyticalAndControlSolutionsProductsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ProductOrServiceAxis=mksi_PowerPlasmaAndReactiveGasSolutionsProductsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ProductOrServiceAxis=mksi_VacuumSolutionsProductsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ProductOrServiceAxis=mksi_LaserProductsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ProductOrServiceAxis=mksi_OpticsProductsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ProductOrServiceAxis=mksi_PhotonicsProductsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: