v2.4.0.8

Accrued Expenses and Other Current Liabilities - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	Feb. 28, 2012	Oct. 31, 2009	Apr. 30, 2014 Accrued Liabilities	Apr. 30, 2013 Accrued Liabilities	Apr. 30, 2014 Other Long Term Liabilities	Apr. 30, 2013 Other Long Term Liabilities
Accrued Expenses and Other Current Liabilities [Line Items]
Leasehold improvement incentives received	$ 0.6	$ 2.9	$ 1.2	$ 0.7	$ 1.2	$ 2.3

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- Details

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X

- Definition

This item represents an incentive or inducement contractually stipulated between parties to a lease whereby the lessor has committed to provide the entity (lessee) with a cash payment as inducement to enter the lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.15(5))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.15(a))

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 15

-Subparagraph a

-Article 7



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 15

-Subparagraph 5

-Article 9

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