XML 53 R43.htm IDEA: XBRL DOCUMENT
v3.21.2

Revenue from Contracts with Customers - Schedule of Deferred Revenue and Customer Advances by Arrangement (Detail) - USD ($) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2021 | Jun. 30, 2020
Change In Contract With Customer Liability [Abstract] |  |
Beginning balance, January 1 | $ 36.7 | $ 24.8
Additions to deferred revenue and customer advances | 25.4 | 46.6
Amount of deferred revenue and customer advances recognized in income | (20.8) | (38.0)
Ending balance, June 30 | $ 41.3 | $ 33.4

X
- Definition Contract with customer amount of deferred revenue and customer advances recognized + References No definition available. + Details
Name: | mksi_ContractWithCustomerAmountOfDeferredRevenueAndCustomerAdvancesRecognized
Namespace Prefix: | mksi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Contract with customer liability additions. + References No definition available. + Details
Name: | mksi_ContractWithCustomerLiabilityAdditions
Namespace Prefix: | mksi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_ChangeInContractWithCustomerLiabilityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556615&loc=SL49130531-203044 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130549-203045 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121556615&loc=SL49130532-203044 + Details
Name: | us-gaap_ContractWithCustomerLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant