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Long-Term Debt (Details) (USD $) In Millions, unless otherwise specified | 9 Months Ended |
--- | --- | ---
Jan. 31, 2012 | Apr. 30, 2011
Debt Instrument [Line Items] |  |
Line of credit facility, maximum borrowing capacity | $ 50 |
Line of Credit Facility, Expiration Date | March 14, 2014 |
Facility secured by equity interest in first tier foreign subsidiaries | 65.00% |
Unrestricted cash and/or marketable securities | 30 |
Outstanding borrowings under facility | 0 | 0
Collateral for standby letters of credit | 10.0 |
Standby letters of credit issued | 2.9 | 2.9
Interest rate description | Borrowings under the Facility bear interest, at the election of the Company, at the London Interbank Offered Rate ("LIBOR") plus applicable margin or the base rate plus applicable margin. The base rate is the highest of (i) the published prime rate, (ii) the federal funds rate plus 0.50%, or (iii) one month LIBOR plus 2.0%. The applicable margin is based on a percentage per annum determined in accordance with a specified pricing grid based on (a) the total funded debt ratio of the Company and (b) with respect to LIBOR loans, whether such LIBOR loans are cash collateralized. For cash collateralized LIBOR loans, the applicable margin will range from 0.65% to 3.15% per annum. For LIBOR loans that are not cash collateralized and for base rate loans, the applicable margin will range from 1.50% to 4.50% per annum (if using LIBOR) and from 1.50% to 4.75% per annum (if using base rate) |
Line of credit facility collateral | The Facility is secured by substantially all of the assets of the Company's domestic subsidiaries and 65% of the equity interest in all the first tier foreign subsidiaries. |
Covenant description | The Facility is secured by substantially all of the assets of the Company's domestic subsidiaries and 65% of the equity interest in all the first tier foreign subsidiaries. The financial covenants include a maximum consolidated leverage ratio, a minimum consolidated fixed charge coverage ratio and a minimum $30 million in unrestricted cash and/or marketable securities after taking into account the accrual for employee compensation and benefits. |
Letters Of Credit [Member] |  |
Debt Instrument [Line Items] |  |
Line of credit facility, maximum borrowing capacity | $ 10 |
Federal Funds Rate [Member] |  |
Debt Instrument [Line Items] |  |
Margin for non cash collateral | 0.50% |
One Month LIBOR [Member] |  |
Debt Instrument [Line Items] |  |
Margin for non cash collateral | 2.00% |
Maximum [Member] |  |
Debt Instrument [Line Items] |  |
Quarterly commitment fees | 0.50% |
Maximum [Member] | Cash Collateralized LIBOR Loan [Member] |  |
Debt Instrument [Line Items] |  |
Margin for non cash collateral | 3.15% |
Maximum [Member] | Libor [Member] | Uncollateralized LIBOR Loan [Member] |  |
Debt Instrument [Line Items] |  |
Margin for non cash collateral | 4.50% |
Maximum [Member] | Base Rate [Member] | Uncollateralized Base Rate [Member] |  |
Debt Instrument [Line Items] |  |
Margin for non cash collateral | 4.75% |
Minimum [Member] |  |
Debt Instrument [Line Items] |  |
Quarterly commitment fees | 0.25% |
Minimum [Member] | Cash Collateralized LIBOR Loan [Member] |  |
Debt Instrument [Line Items] |  |
Margin for non cash collateral | 0.65% |
Minimum [Member] | Libor [Member] | Uncollateralized LIBOR Loan [Member] |  |
Debt Instrument [Line Items] |  |
Margin for non cash collateral | 1.50% |
Minimum [Member] | Base Rate [Member] | Uncollateralized Base Rate [Member] |  |
Debt Instrument [Line Items] |  |
Margin for non cash collateral | 1.50% |

X
- Definition Collateral For Standby Letters Of Credit + References No definition available. + Details
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- Definition Line Of Credit facility, Financial Covenant. + References No definition available. + Details
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- Definition Line Of Credit Facility, Percentage Of Equity Interest As Collateral. + References No definition available. + Details
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- Definition Description of minimum financial levels (for example, tangible net worth and working capital) and achievement of certain financial ratios (for example, working capital ratio and debt service coverage ratio), and adherence to certain clauses which generally require or restrict certain actions (for example, entering into a debt arrangement with equal or greater seniority, and selling or discontinuing a certain business segment or material subsidiary) to be in compliance with the covenant clauses of the debt agreement. May also include a discussion of the adverse consequences that would result if the entity violates or fails to satisfy the covenants. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 + Details
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- Definition The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR. + References No definition available. + Details
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- Details
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- Definition Amount borrowed under the credit facility as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Reflects when the credit facility terminates, which may be presented in a variety of ways (year, month and year, day, month and year, quarter). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 Reference 3: 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 Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 Reference 3: 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 The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. + References No definition available. + Details
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