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Derivative Financial Instruments - Fair Value and Presentation of Derivatives (Details) - USD ($) $ in Thousands	Jan. 31, 2019	Jan. 31, 2018
Not Designated as Hedging Instrument
Derivatives Fair Value [Line Items]
Asset Derivatives	$ 22	$ 544
Liability Derivatives	156	2
Not Designated as Hedging Instrument | Foreign Exchange Contracts | Other Current Assets
Derivatives Fair Value [Line Items]
Asset Derivatives	22	544
Not Designated as Hedging Instrument | Foreign Exchange Contracts | Accrued Liabilities
Derivatives Fair Value [Line Items]
Liability Derivatives	$ 156	2
Designated as Hedging Instrument
Derivatives Fair Value [Line Items]
Liability Derivatives		44
Designated as Hedging Instrument | Foreign Exchange Contracts | Accrued Liabilities
Derivatives Fair Value [Line Items]
Liability Derivatives		$ 44

X

- Definition

Fair value, after offset of derivative liability, of financial asset or other 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, before offset against an obligation to return collateral under a master netting arrangement. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Fair value, after offset of derivative asset, of 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, elected not to be and before offset against a right to receive collateral under a master netting arrangement. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (c)
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- Definition

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.

+ References

No definition available.

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