XML 85 R72.htm IDEA: XBRL DOCUMENT v3.10.0.1

Segment Information and Enterprise Reporting Long-lived assets by geographic area (Details) - USD ($) $ in Thousands	Sep. 29, 2018	Dec. 30, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	$ 287,987	$ 278,020
Concentration Risk, Long-lived Asset Geographic Area, Percentage	100.00%	100.00%
Reportable Geographical Components | United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	$ 272,998	$ 265,678
Concentration Risk, Long-lived Asset Geographic Area, Percentage	94.80%	95.60%
Reportable Geographical Components | International
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	$ 14,989	$ 12,342
Concentration Risk, Long-lived Asset Geographic Area, Percentage	5.20%	4.40%

X

- Definition

Concentration Risk, Long-lived Asset Geographic Area, Percentage

+ References

No definition available.

+ Details

Name:	masi_ConcentrationRiskLonglivedAssetGeographicAreaPercentage
Namespace Prefix:	masi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e9038-108599

+ Details

Name:	us-gaap_NoncurrentAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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

X

- Details

Name:	srt_ConsolidationItemsAxis=srt_ReportableGeographicalComponentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=country_US
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=us-gaap_NonUsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: