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Schedule of Revenue by End Market (Details)	3 Months Ended
	Mar. 28, 2025	Mar. 29, 2024
Segment Reporting Information [Line Items]
Total revenue by end market	100.00%	100.00%
Medical
Segment Reporting Information [Line Items]
Total revenue by end market	55.00%	55.00%
Advanced Industrial
Segment Reporting Information [Line Items]
Total revenue by end market	45.00%	45.00%

X

- Definition

Percentage of revenue by end market.

+ References

No definition available.

+ Details

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Namespace Prefix:	novt_
Data Type:	dtr-types:percentItemType
Balance Type:	na
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_SegmentReportingInformationLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	novt_ContractWithCustomerEndMarketAxis=novt_MedicalMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	novt_ContractWithCustomerEndMarketAxis=novt_AdvancedIndustrialMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: