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v3.25.1

Revenue Recognition (Additional Information) (Details) | 9 Months Ended
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Feb. 28, 2025
Revenue from Contract with Customer [Abstract] |
Products and services, payment terms | 30 to 90 days

X
- Definition Products and Services, Payment Terms + References No definition available. + Details
Name: | neog_ProductsAndServicesPaymentTerms
Namespace Prefix: | neog_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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