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Goodwill and Other Intangible Assets - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Apr. 30, 2015 | Apr. 30, 2014 | Apr. 30, 2015 | Apr. 30, 2014 | Oct. 31, 2014
Goodwill [Line Items] |  |  |  |  |
Goodwill accumulated impairment loss | $ 232,789 us-gaap_GoodwillImpairedAccumulatedImpairmentLoss |  | $ 232,789 us-gaap_GoodwillImpairedAccumulatedImpairmentLoss |  | $ 232,789 us-gaap_GoodwillImpairedAccumulatedImpairmentLoss
Intangible assets, amortization expense | 6,976 us-gaap_AmortizationOfIntangibleAssets | 6,310 us-gaap_AmortizationOfIntangibleAssets | 13,867 us-gaap_AmortizationOfIntangibleAssets | 12,640 us-gaap_AmortizationOfIntangibleAssets |
Advanced Technology Systems [Member] |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Goodwill accumulated impairment loss | 229,173 us-gaap_GoodwillImpairedAccumulatedImpairmentLoss / us-gaap_StatementBusinessSegmentsAxis = ndsn_AdvancedTechnologySystemsMember |  | 229,173 us-gaap_GoodwillImpairedAccumulatedImpairmentLoss / us-gaap_StatementBusinessSegmentsAxis = ndsn_AdvancedTechnologySystemsMember |  | 229,173 us-gaap_GoodwillImpairedAccumulatedImpairmentLoss / us-gaap_StatementBusinessSegmentsAxis = ndsn_AdvancedTechnologySystemsMember
Industrial Coating Systems [Member] |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Goodwill accumulated impairment loss | $ 3,616 us-gaap_GoodwillImpairedAccumulatedImpairmentLoss / us-gaap_StatementBusinessSegmentsAxis = ndsn_IndustrialCoatingSystemsMember |  | $ 3,616 us-gaap_GoodwillImpairedAccumulatedImpairmentLoss / us-gaap_StatementBusinessSegmentsAxis = ndsn_IndustrialCoatingSystemsMember |  | $ 3,616 us-gaap_GoodwillImpairedAccumulatedImpairmentLoss / us-gaap_StatementBusinessSegmentsAxis = ndsn_IndustrialCoatingSystemsMember

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a,h) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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- Details
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- Details
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- Details
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