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v3.20.2

Warranties - Additional Information (Detail) | 9 Months Ended
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Jul. 31, 2020
Guarantees [Abstract] |
Product warranty period | 1 year

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- Definition Product warranty period. + References No definition available. + Details
Name: | ndsn_ProductsWarrantyPeriod
Namespace Prefix: | ndsn_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_GuaranteesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration