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Debt (Tables) | 6 Months Ended
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Nov. 30, 2019
Debt Disclosure [Abstract] |
Schedule of Debt | The following table summarizes the carrying value of the Company's debt as of the dates indicated:
| November 30, 2019 |  | May 31, 2019 |  | November 30, 2018
Revolving Loan | — |  |  | — |  |  | — |
Unsecured lines of credit (weighted average interest rates of 3.8%, 4.1% and 3.8%, respectively) | $13.5 |  | $7.3 |  | $13.5
UK long-term debt (average interest rate of 2.5%, n/a and n/a, respectively) | 2.6 |  |  | — |  |  | — |
Total debt | $16.1 |  | $7.3 |  | $13.5
Less lines of credit, short-term debt and current portion of long-term debt | (13.5 | ) |  | (7.3 | ) |  | (13.5 | )
Total long-term debt | $2.6 |  | $0.0 |  | $0.0

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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
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