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Fair Value Measurements - Asset Acquisition Contingent Consideration - Additional Information (Details) | 1 Months Ended | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Feb. 28, 2021 USD ($) | Feb. 28, 2021 EUR (€) | Feb. 29, 2020 USD ($) | Feb. 29, 2020 EUR (€) | Oct. 01, 2021 USD ($) | Apr. 02, 2021 Installment | Oct. 01, 2021 USD ($) | Dec. 14, 2016 USD ($) | Dec. 14, 2016 EUR (€)
Asset Acquisition Contingent Consideration [Line Items] |  |  |  |  |  |  |  |  |
Payment for contingent consideration | $ 2,200,000 | € 1,800,000 | $ 2,600,000 | € 2,400,000 |  |  |  |  |
Video Signal Processing and Management Technologies |  |  |  |  |  |  |  |  |
Asset Acquisition Contingent Consideration [Line Items] |  |  |  |  |  |  |  |  |
Date of Acquisition Agreement |  |  |  |  |  | Dec. 14, 2016 |  |  |
Number of contingent consideration annual installments | Installment |  |  |  |  |  | 4 |  |  |
Undiscounted range of outcomes, minimum | € |  |  |  |  |  |  |  |  | € 0
Undiscounted range of outcomes, maximum |  |  |  |  |  |  |  | $ 6,600,000 | € 5,500,000
Changes in fair value of contingent consideration | $ |  |  |  |  | $ 0 |  | $ 0 |  |

X
- Definition For contingent consideration arrangements, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid. + References No definition available. + Details
Name: | novt_ContingentConsiderationArrangementsRangeOfOutcomesValueHigh
Namespace Prefix: | novt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition For contingent consideration arrangements, this element represents an estimate of the low-end of the potential range (undiscounted) of the consideration which may be paid. + References No definition available. + Details
Name: | novt_ContingentConsiderationArrangementsRangeOfOutcomesValueLow
Namespace Prefix: | novt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Date when the acquisition agreement was executed, in CCYY-MM-DD format. + References No definition available. + Details
Name: | novt_DateOfAcquisitionAgreement
Namespace Prefix: | novt_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of contingent consideration payment annual installments. + References No definition available. + Details
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Data Type: | xbrli:integerItemType
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- Definition Payment for asset acquisition contingent consideration liability. + References No definition available. + Details
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Namespace Prefix: | novt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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
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- Definition Amount of increase (decrease) of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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- Details
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