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Capital Shares - Capital Shares (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Oct. 31, 2019 | Oct. 31, 2018 | Oct. 31, 2017
Equity [Abstract] |  |  |
Number of Shares | 949 | 145 | 0
Total Amount | $ 114,790 | $ 18,939 | $ 0
Average per Share | $ 121.01 | $ 130.21 | $ 0

X
- Definition Number of shares that have been repurchased under publically announced programs during the period and are being held in treasury. + References No definition available. + Details
Name: | ndsn_StockRepurchasedDuringPeriodForPublicallyAnnouncedProgram
Namespace Prefix: | ndsn_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Value of shares that have been repurchased under publically announced programs during the period. + References No definition available. + Details
Name: | ndsn_TreasuryStockAcquiredUnderPubliclyAnnouncedPrograms
Namespace Prefix: | ndsn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Average cost per share of shares that have been repurchased under publically announced programs during the period. + References No definition available. + Details
Name: | ndsn_TreasuryStockAcquiredUnderPubliclyAnnouncedProgramsAverageCostPerShare
Namespace Prefix: | ndsn_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

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