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v3.26.1

Summary of Significant Accounting Policies - Additional Information (Detail) $ in Millions | 12 Months Ended
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May 31, 2026 USD ($) Segment | May 31, 2025 USD ($) | May 31, 2024 USD ($)
Significant Accounting Policies [Line Items] |  |  |
Number of operating segments | Segment | 2 |  |
Accounts receivable, net | $ 146.8 | $ 153.4 | $ 173.0
Depreciation expense | 24.4 | 25.6 | 21.8
Cost of goods and services sold | 461.9 | 473.3 | 460.3
Cash held at foreign subsidiaries | 110.3 | 58.5 |
Foreign currency losses | 5.8 | 3.7 | 5.2
Shipping and Handling |  |  |
Significant Accounting Policies [Line Items] |  |  |
Cost of goods and services sold | 25.1 | 29.7 | 25.3
Advertising Cost |  |  |
Significant Accounting Policies [Line Items] |  |  |
Cost of goods and services sold | $ 3.2 | $ 4.1 | $ 3.3
Customer One |  |  |
Significant Accounting Policies [Line Items] |  |  |
Account receivable percentage from major customer | 10.00% | 10.00% |
Customer or Distributor | Revenues | Customer Concentration Risk |  |  |
Significant Accounting Policies [Line Items] |  |  |
Concentration risk, percentage | 10.00% | 10.00% | 10.00%
Minimum |  |  |
Significant Accounting Policies [Line Items] |  |  |
Finite lived intangible assets, useful life | 2 years |  |
Stock option vesting period | 3 years |  |
Minimum | Buildings And Improvements |  |  |
Significant Accounting Policies [Line Items] |  |  |
Property, Plant and Equipment, Useful Life | 7 years |  |
Minimum | Furniture, fixtures, computers and machinery and equipment |  |  |
Significant Accounting Policies [Line Items] |  |  |
Property, Plant and Equipment, Useful Life | 3 years |  |
Maximum |  |  |
Significant Accounting Policies [Line Items] |  |  |
Finite lived intangible assets, useful life | 25 years |  |
Stock option vesting period | 5 years |  |
Maximum | Buildings And Improvements |  |  |
Significant Accounting Policies [Line Items] |  |  |
Property, Plant and Equipment, Useful Life | 39 years |  |
Maximum | Furniture, fixtures, computers and machinery and equipment |  |  |
Significant Accounting Policies [Line Items] |  |  |
Property, Plant and Equipment, Useful Life | 10 years |  |

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