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Long-Term Debt - Additional Information (Detail) - USD ($)	12 Months Ended
	Feb. 29, 2016	Feb. 28, 2015	Sep. 19, 2013
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Revolving credit facility, outstanding borrowings	$ 40,000,000	$ 106,500,000
Revolving credit facility, percentage of capital securities of direct foreign subsidiary	65.00%
Third Amendment [Member] | Revolving Credit Facility [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%
Third Amendment [Member] | Standby Letters of Credit [Member]
Line of Credit Facility [Line Items]
Revolving credit facility, outstanding borrowings	$ 2,100,000
Revolving credit facility, remaining borrowing capacity	107,900,000
Second Amendment [Member] | Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
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%, or 1.76%
Revolving credit facility, interest rate variable basis spread, option one	1.76%	1.75%
Revolving credit facility, interest rate variable basis spread, option two	1.25%	1.50%
Second Amendment [Member] | Revolving Credit Facility [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Revolving credit facility, variable basis spread	1.00%
Second Amendment [Member] | Revolving Credit Facility [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Revolving credit facility, variable basis spread	2.25%

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Line of credit facility security percentage direct foreign subsidiary.

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Minimum Tangible Net Worth As Entered Into Amended Credit Agreement

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Percentage Of Minimum Tangible Net Worth Covenant Of Credit Facility

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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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 FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
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Date the credit facility terminates, in CCYY-MM-DD format.

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-Name Accounting Standards Codification
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Date the credit facility first became available, in CCYY-MM-DD format.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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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.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 20, 22
-Article 5

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Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
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