Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
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Face (par) amount of debt instrument at time of issuance.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
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Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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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No definition available.

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The estimated value of gains (losses), net anticipated to be transferred in the future from accumulated other comprehensive income into earnings.

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Maximum amount of time remaining before foreign currency exchange rate derivatives mature or expire, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount after tax of reclassification adjustment from accumulated other comprehensive income of accumulated gain (loss) realized from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's deferred hedging gain (loss).

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Derivative Financial Instruments and Risk Management - Additional Information (Detail) - USD ($)		3 Months Ended	9 Months Ended
	Oct. 28, 2017	Oct. 28, 2017	Oct. 28, 2017	Nov. 30, 2017	Feb. 28, 2017
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of gains or losses reclassified to earnings		$ 58,000	$ (646,000)
Subsequent Event [Member] \| Term Loan [Member] \| Bank of America, N.A. [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Principal amount of debt				$ 15,000,000
Cross Currency Interest Rate Contract [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of debt conversion	$ 8,100,000	8,100,000	$ 8,100,000
Maximum remaining maturity of foreign currency derivatives			5 years
Derivative fair value	900,000	900,000	$ 900,000
Amount of gains or losses reclassified to earnings		$ 0	$ 0
Amount of gain reclassify from Accumulated OCI into income during next 12 months	$ 66,000
Cross Currency Interest Rate Contract [Member] \| Swap [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of debt conversion					$ 8,900,000