Net fair value of all derivative instruments designated as cash flow hedging instruments, which is ordinarily reflected within other comprehensive income.

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-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 45
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- Definition

Date the derivative contract matures, in CCYY-MM-DD format.

+ References

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- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
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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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Derivative Financial Instruments - Additional Information (Details) - 6 months ended Jul. 31, 2020	USD ($)	EUR (€)	CHF (SFr)	CNY (¥)	GBP (£)
Derivatives Fair Value [Line Items]
Cash flow hedges	$ 0
Foreign Exchange Forward
Derivatives Fair Value [Line Items]
Net forward contracts hedging portfolio	$ 9,700,000	€ 22,200,000	SFr 4,000,000.0	¥ 46,100,000	£ 1,300,000
Maximum
Derivatives Fair Value [Line Items]
Expiry dates ranging	Sep. 10, 2020