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Restructuring - Summary of Restructuring Charges by Segment (Details) - USD ($) $ in Millions | 12 Months Ended
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May 31, 2026 | May 31, 2025
Restructuring Cost and Reserve [Line Items] |  |
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration] | Operating Income (Loss) | Operating Income (Loss)
Restructuring charges | $ 7.0 | $ 11.1
Corporate |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring charges | 3.0 | 1.5
Operating Segments | Food Safety |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring charges | 3.4 | 2.2
Operating Segments | Animal Safety |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring charges | $ 0.6 | $ 7.4

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