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Warranties - Additional Information (Detail)	9 Months Ended
	Jul. 31, 2019
Guarantees [Abstract]
Product warranty period	1 year

X

- 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

X

- References

No definition available.

+ Details

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