XML 123 R60.htm IDEA: XBRL DOCUMENT
v3.22.4

Summary of Significant Accounting Policies - Additional Information (Detail) shares in Millions, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 USD ($) segment shares | Jan. 01, 2022 USD ($) shares | Jan. 02, 2021 USD ($) shares
Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of Sources of Product Revenue | segment | 4 |  |
Advertising costs | $ | $ 12.3 | $ 9.0 | $ 30.8
Options to purchase of shares of common stock (in shares) | 0.8 | 0.2 | 0.4
Restricted Stock Units (RSUs) |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Weighted average shares contingently issuable (in shares) | 0.3 | 0.1 | 0.1
Chief Executive Officer | Restricted Stock Units (RSUs) |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Weighted average shares contingently issuable (in shares) | 2.7 | 2.7 | 2.7
Minimum |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Revenue, remaining performance obligation, expected timing of satisfaction, period | 3 years |  |
Warranty period for defects in material and workmanship | 6 months |  |
Maximum |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Revenue, remaining performance obligation, expected timing of satisfaction, period | 6 years |  |
Warranty period for defects in material and workmanship | 48 months |  |
Patents |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Estimated life maximum | 10 years |  |
Trademarks |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Estimated life maximum | 17 years |  |

X
- Definition Finite Lived Intangible Asset Useful Life Maximum + References No definition available. + Details
Name: | masi_FiniteLivedIntangibleAssetUsefulLifeMaximum
Namespace Prefix: | masi_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of Sources of Product Revenue + References No definition available. + Details
Name: | masi_NumberofSourcesofProductRevenue
Namespace Prefix: | masi_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Summary Of Significant Accounting Policies [Line Items] + References No definition available. + Details
Name: | masi_SummaryOfSignificantAccountingPoliciesLineItems
Namespace Prefix: | masi_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Warranty period for defects in material and workmanship. + References No definition available. + Details
Name: | masi_WarrantyPeriodForDefectsInMaterialAndWorkmanship
Namespace Prefix: | masi_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -SubTopic 35 -Section 50 -Paragraph 1 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848 + Details
Name: | us-gaap_AdvertisingExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
Name: | us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Period in which remaining performance obligation is expected to be recognized as revenue, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (b)(1) -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130556-203045 + Details
Name: | us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_TitleOfIndividualAxis=srt_ChiefExecutiveOfficerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_PatentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_TrademarksMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |