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v2.4.0.8

Long-Term Debt - Summary of Long-Term Debt (Detail) (Revolving Credit Facility [Member], USD $) In Thousands, unless otherwise specified | May 31, 2014 | Feb. 28, 2014
--- | --- | ---
Revolving Credit Facility [Member] |  |
Line of Credit Facility [Line Items] |  |
Revolving credit facility | $ 105,500 | $ 105,500

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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
Name: | us-gaap_LineOfCreditFacilityAmountOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
Name: | us-gaap_LineOfCreditFacilityLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration