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Goodwill and Intangible Assets - Additional Information (Details) - USD ($) | 1 Months Ended | 3 Months Ended
--- | --- | ---
Sep. 28, 2018 | Jun. 29, 2018
Goodwill And Intangible Assets [Line Items] |  |
Impairment of goodwill and intangible assets |  | $ 0
Customer Relationships |  |
Goodwill And Intangible Assets [Line Items] |  |
Intangible assets recognized in conjunction with acquisition | $ 1,100,000 |

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- Definition Goodwill and intangible assets. + References No definition available. + Details
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Namespace Prefix: | novt_
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Balance Type: | na
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- Definition Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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Period Type: | duration

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- Definition Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill. + References No definition available. + Details
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |