| **Significant Accounting Policies - Useful Lives of Property, Plant and Equipment and Depreciation (Detail)** | 12 Months Ended |
|---------------------------------------------------------------------------------------------------------------|-----------------|
||
| Minimum | Land improvements                                                                                   |            |
| **Property Plant and Equipment [Line Items]**                                                                 |            |
| Useful lives of property, plant and equipment and depreciation                                                | 15 years        |
| Minimum | Buildings                                                                                           |            |
| **Property Plant and Equipment [Line Items]**                                                                 |            |
| Useful lives of property, plant and equipment and depreciation                                                | 20 years        |
| Minimum | Machinery and equipment                                                                             |            |
| **Property Plant and Equipment [Line Items]**                                                                 |            |
| Useful lives of property, plant and equipment and depreciation                                                | 3 years         |
| Minimum | Enterprise management system                                                                        |            |
| **Property Plant and Equipment [Line Items]**                                                                 |            |
| Useful lives of property, plant and equipment and depreciation                                                | 5 years         |
| Maximum | Land improvements                                                                                   |            |
| **Property Plant and Equipment [Line Items]**                                                                 |            |
| Useful lives of property, plant and equipment and depreciation                                                | 25 years        |
| Maximum | Buildings                                                                                           |            |
| **Property Plant and Equipment [Line Items]**                                                                 |            |
| Useful lives of property, plant and equipment and depreciation                                                | 40 years        |
| Maximum | Machinery and equipment                                                                             |            |
| **Property Plant and Equipment [Line Items]**                                                                 |            |
| Useful lives of property, plant and equipment and depreciation                                                | 18 years        |
| Maximum | Enterprise management system                                                                        |            |
| **Property Plant and Equipment [Line Items]**                                                                 |            |
| Useful lives of property, plant and equipment and depreciation                                                | 13 years        |

| X                                                                                                                                                                                                                                                                                                                                                                                                                          |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
+ References
No definition available.
+ Details**Name:**us-gaap_PropertyPlantAndEquipmentLineItems**Namespace Prefix:**us-gaap_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.
+ References
No definition available.
+ Details**Name:**us-gaap_PropertyPlantAndEquipmentUsefulLife**Namespace Prefix:**us-gaap_**Data Type:**xbrli:durationItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                       |
|-------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**srt_RangeAxis=srt_MinimumMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |
| X                                                                                                                                                                  |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_LandImprovementsMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |
| X                                                                                                                                                          |
|------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_BuildingMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |
| X                                                                                                                                                                       |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_MachineryAndEquipmentMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |
| X                                                                                                                                                                          |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_PropertyPlantAndEquipmentByTypeAxis=ndsn_EnterpriseManagementSystemsMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |
| X                                                                                                                       |
|-------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**srt_RangeAxis=srt_MaximumMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |