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v3.21.2

Taxes (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
May 31, 2021 | May 31, 2020 | May 31, 2019 | May 31, 2018
Loss Contingencies [Line Items] |  |  |  |
Deferred Tax Liabilities, Net | $ 96.8 | $ 92.3 |  |
Deferred Tax Assets, Net | 25.4 | 12.3 |  |
Operating Loss Carryforwards, Valuation Allowance | 3.8 |  |  |
Decrease in deferred tax asset valuation allowance | (8.2) |  |  |
Unrecognized tax benefits | 12.3 | 10.2 | $ 9.0 | $ 10.1
Income tax penalties and interest accrued | 2.6 | 2.2 | 1.4 |
Unrecognized tax benefits that would impact effective tax rate | 12.3 | 10.2 | 9.0 |
Tax (expense) benefit from income tax penalties and interest expense | 0.5 | 0.8 | $ 0.4 |
Period increase (decrease) in unrecognized tax benefits | (2.1) | (1.2) |  |
Gross unrecognized tax benefits that could reasonably change | 1.9 |  |  |
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount |  | (5.6) |  |
State and Local Jurisdiction |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Operating Loss Carryforwards, Valuation Allowance | 10.8 |  |  |
Non-United States |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Operating Loss Carryforwards, Valuation Allowance | 25.1 |  |  |
Other Noncurrent Liabilities |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Deferred Tax Liabilities, Net | $ 0.0 | 6.3 |  |
Deferred Tax Assets, Net |  | $ 18.6 |  |

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