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Long-Term Debt - Additional Information (Detail) (USD $) |  |  |  | 3 Months Ended |  | 3 Months Ended |  | 3 Months Ended
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May 31, 2014 Revolving Credit Facility [Member] | Feb. 28, 2014 Revolving Credit Facility [Member] | May 31, 2014 Standby letters of credit [Member] | May 31, 2014 Third Amendment [Member] Revolving Credit Facility [Member] | Sep. 19, 2013 Third Amendment [Member] Revolving Credit Facility [Member] | May 31, 2014 Second Amendment [Member] Revolving Credit Facility [Member] | May 31, 2013 Second Amendment [Member] Revolving Credit Facility [Member] | May 31, 2014 Second Amendment [Member] Revolving Credit Facility [Member] Minimum [Member] | May 31, 2014 Second Amendment [Member] Revolving Credit Facility [Member] Maximum [Member]
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |
Revolving credit facility, initiation date |  |  |  | Sep. 19, 2013 |  |  |  |  |
Minimum tangible net worth, amount |  |  |  |  | $ 100,000,000 |  |  |  |
Minimum tangible net worth percentage |  |  |  |  | 25.00% |  |  |  |
Revolving credit facility, maximum borrowing capacity |  |  |  |  |  | 150,000,000 |  |  |
Revolving credit facility, additional borrowing capacity |  |  |  |  |  | 200,000,000 |  |  |
Revolving credit facility, maturity date |  |  |  |  |  | Aug. 18, 2016 |  |  |
Revolving credit facility, interest rate description |  |  |  |  |  | London Interbank Offered Rate ("LIBOR") plus a spread ranging from 1.0% to 2.25% |  |  |
Revolving credit facility, variable basis spread |  |  |  |  |  |  |  | 1.00% | 2.25%
Revolving credit facility, interest rate variable basis spread, option one |  |  |  |  |  | 1.50% | 1.69% |  |
Revolving credit facility, interest rate variable basis spread, option two |  |  |  |  |  | 1.65% |  |  |
Revolving credit facility, outstanding borrowings | 105,500,000 | 105,500,000 | 3,300,000 |  |  |  |  |  |
Revolving credit facility, remaining borrowing capacity |  |  | $ 41,200,000 |  |  |  |  |  |
Revolving credit facility, percentage of capital securities of direct foreign subsidiary | 65.00% |  |  |  |  |  |  |  |

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- Definition Minimum Tangible Net Worth As Entered Into Amended Credit Agreement + References No definition available. + Details
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- Definition Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: 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(a)(1)) -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 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 + 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 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 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 + Details
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