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Debt - FV, Limit (Details) $ in Thousands	May. 31, 2015 USD ($)
Long-term debt
Limit on additional debt borrowings	$ 284,600
3.90% unsecured Senior Notes payable | Book value
Long-term debt
Long-term debt	60,000
3.90% unsecured Senior Notes payable | Fair Values | Significant Other Observable Market Inputs (Level 2) | Discounted cash flow analysis
Long-term debt
Long-term debt	$ 61,810

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- Definition

Represents the limit on the additional amount of debt, from all sources, that may be borrowed.

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

+ Details

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

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