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v3.3.1.900

Debt (Details) - USD ($) | 9 Months Ended |  |
--- | --- | --- | ---
Feb. 29, 2016 | May. 31, 2015 | Feb. 28, 2015
Debt (Details) [Line Items] |  |  |
Debt | $ 8,200,000 | $ 6,000,000 | $ 84,100,000
Loan Agreement |  |  |
Debt (Details) [Line Items] |  |  |
Borrowing capacity | $ 425,000,000 |  |
Expiration date | Dec. 05, 2017 |  |
Facility fee (percentage) | 0.20% |  |
Standby letters of credit | $ 400,000 |  |
Minimum | Loan Agreement |  |  |
Debt (Details) [Line Items] |  |  |
Facility fee (percentage) | 0.20% |  |
Maximum | Loan Agreement |  |  |
Debt (Details) [Line Items] |  |  |
Facility fee (percentage) | 0.40% |  |
Loan Agreement | Federal Funds Rate |  |  |
Debt (Details) [Line Items] |  |  |
Variable rate (percentage) | 0.50% |  |
Loan Agreement | Eurodollar |  |  |
Debt (Details) [Line Items] |  |  |
Variable rate (percentage) | 1.00% |  |
Loan Agreement | Eurodollar | Minimum |  |  |
Debt (Details) [Line Items] |  |  |
Variable rate (percentage) | 0.18% |  |
Loan Agreement | Base Rate | Minimum |  |  |
Debt (Details) [Line Items] |  |  |
Variable rate (percentage) | 0.18% |  |
Loan Agreement | Base Rate | Maximum |  |  |
Debt (Details) [Line Items] |  |  |
Variable rate (percentage) | 0.60% |  |
Loan Agreement | London Interbank Offered Rate (LIBOR) | Minimum |  |  |
Debt (Details) [Line Items] |  |  |
Variable rate (percentage) | 1.18% |  |
Loan Agreement | London Interbank Offered Rate (LIBOR) | Maximum |  |  |
Debt (Details) [Line Items] |  |  |
Variable rate (percentage) | 1.60% |  |
Unsecured Debt | Domestic Line of Credit |  |  |
Debt (Details) [Line Items] |  |  |
Borrowing capacity | $ 25,000,000 |  |
Outstanding debt | $ 0 | 0 | 10,400,000
Expiration period (in days) | 365 days |  |
Standby letters of credit | $ 4,900,000 |  |
Remaining borrowing capacity | 20,100,000 |  |
Unsecured Debt | Foreign Line of Credit |  |  |
Debt (Details) [Line Items] |  |  |
Borrowing capacity | 22,700,000 |  |
Available credit | $ 14,500,000 |  |
Expiration period (in days) | 364 days |  |
Unsecured Debt | Foreign Line of Credit | Line of Credit |  |  |
Debt (Details) [Line Items] |  |  |
Debt | $ 8,200,000 | $ 6,000,000 | $ 8,700,000

X
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- Definition The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used. + References No definition available. + Details
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- Definition Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 + Details
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- Definition Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Date the credit facility terminates, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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