XML 77 R65.htm IDEA: XBRL DOCUMENT
v3.19.2

Acquisitions - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Feb. 01, 2019 | Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Business Acquisition [Line Items] |  |  |  |  |
Business acquisition share price | $ 30.00 |  |  |  |
Stock-based compensation expense |  | $ 6,929 | $ 6,366 | $ 34,767 | $ 16,792
Electro Scientific Industries Inc [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Business acquisition share price | $ 30.00 |  |  |  |
Business acquisition, total cash consideration | $ 1,032,671 |  |  |  |
Non Cash Consideration related to share based compensation awards | 30,630 |  |  |  |
Total Purchase Consideration | $ 1,063,301 |  |  |  |
Fair value write-up of acquired finished goods inventory |  | 7,624 |  | 7,624 |
Incremental costs of sales charge |  | 2,484 |  | 7,624 |
Fair value write-up of acquired property, plant and equipment |  | 39,267 |  | $ 39,267 |
Compensation expense |  | 2,701 |  |  |
Stock-based compensation expense |  | 14,023 |  |  |
Electro Scientific Industries Inc [Member] | Property Plant and Equipment [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Assets, fair value adjustment |  | 12,600 |  |  |
Electro Scientific Industries Inc [Member] | Inventories [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Assets, fair value adjustment |  | 9,800 |  |  |
Electro Scientific Industries Inc [Member] | Intangible assets [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Assets, fair value adjustment |  | 2,400 |  |  |
Electro Scientific Industries Inc [Member] | Goodwill [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Assets, fair value adjustment |  | $ 1,300 |  |  |

X
- Definition Business combination cash paid in settlement of share based compensation awards. + References No definition available. + Details
Name: | mksi_BusinessCombinationCashPaidInSettlementOfShareBasedCompensationAwards
Namespace Prefix: | mksi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Business combination compensation expenses. + References No definition available. + Details
Name: | mksi_BusinessCombinationCompensationExpenses
Namespace Prefix: | mksi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Fair value increase of acquired property plant and equipment. + References No definition available. + Details
Name: | mksi_FairValueIncreaseOfAcquiredPropertyPlantAndEquipment
Namespace Prefix: | mksi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value write-up of acquired finished goods inventory. + References No definition available. + Details
Name: | mksi_FairValueWriteupOfAcquiredFinishedGoodsInventory
Namespace Prefix: | mksi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Incremental cost of sales charge. + References No definition available. + Details
Name: | mksi_IncrementalCostOfSalesCharge
Namespace Prefix: | mksi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
Name: | us-gaap_AllocatedShareBasedCompensationExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of addition (reduction) to the amount at which an asset could be incurred (settled) in a current transaction between willing parties. + References No definition available. + Details
Name: | us-gaap_AssetsFairValueAdjustment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Definition Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination. + References No definition available. + Details
Name: | us-gaap_BusinessAcquisitionSharePrice
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6613-128477 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6578-128477 + Details
Name: | us-gaap_BusinessCombinationConsiderationTransferred1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsToAcquireBusinessesGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=mksi_ElectroScientificIndustriesIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=mksi_PropertyPlantAndEquipmentmemberMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=mksi_InventoriesmemberMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=mksi_IntangibleAssetsmemberMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=mksi_GoodwillmemberMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |