Selling, general and administrative

$ 97,046us-gaap_GrossProfit

$ 89,372us-gaap_GrossProfit

Research and development

16,680us-gaap_ResearchAndDevelopmentExpense

15,618us-gaap_ResearchAndDevelopmentExpense

30,867us-gaap_SellingGeneralAndAdministrativeExpense

34,591us-gaap_SellingGeneralAndAdministrativeExpense

Acquisition costs

30us-gaap_BusinessCombinationAcquisitionRelatedCosts

228us-gaap_BusinessCombinationAcquisitionRelatedCosts

Restructuring

788us-gaap_RestructuringCharges

747us-gaap_RestructuringCharges

Amortization of intangible assets

1,671us-gaap_AmortizationOfIntangibleAssets

410us-gaap_AmortizationOfIntangibleAssets

Income from operations

47,010us-gaap_OperatingIncomeLoss

37,778us-gaap_OperatingIncomeLoss

Net interest income

504us-gaap_InterestIncomeExpenseNet

235us-gaap_InterestIncomeExpenseNet

Income before income taxes

47,514us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

38,013us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

Provision for income taxes

13,728us-gaap_IncomeTaxExpenseBenefit

6,768us-gaap_IncomeTaxExpenseBenefit

Net income

33,786us-gaap_NetIncomeLoss

31,245us-gaap_NetIncomeLoss

Operating Segments [Member] | Advanced Manufacturing Capital Equipment [Member]

Operating Segments [Member] | Global Service [Member]

78,688us-gaap_GrossProfit
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= mksi_AdvanceManufacturingCapitalEquipmentMember

67,107us-gaap_GrossProfit
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/ us-gaap_StatementBusinessSegmentsAxis
= mksi_AdvanceManufacturingCapitalEquipmentMember

Operating Segments [Member] | Asia Region Sales [Member]

9,603us-gaap_GrossProfit
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= mksi_GlobalServiceMember

8,397us-gaap_GrossProfit
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= mksi_GlobalServiceMember

Operating Segments [Member] | Other [Member]

6,920us-gaap_GrossProfit
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= mksi_AsiaRegionSalesMember

9,077us-gaap_GrossProfit
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= mksi_AsiaRegionSalesMember

Corporate and Eliminations [Member]

6,843us-gaap_GrossProfit
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_AllOtherSegmentsMember

6,747us-gaap_GrossProfit
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_AllOtherSegmentsMember

$ (5,008)us-gaap_GrossProfit
/ us-gaap_ConsolidationItemsAxis
= mksi_CorporateAndEliminationsMember

$ (1,956)us-gaap_GrossProfit
/ us-gaap_ConsolidationItemsAxis
= mksi_CorporateAndEliminationsMember

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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-Publisher FASB

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-Topic 805

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Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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The net amount of operating interest income (expense).

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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-Glossary Net Income

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-Topic 944

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The net result for the period of deducting operating expenses from operating revenues.

No definition available.

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The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.

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