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Derivative Instruments - Fair Values of Outstanding Derivative Instruments (Details) - USD ($) $ in Thousands	Jul. 31, 2021	Jan. 31, 2021
Derivatives, Fair Value [Line Items]
Derivative Assets	$ 10,973	$ 3,221
Derivative Liabilities	34,877	49,456
Foreign Currency Forward Contracts | Not Designated as Hedging Instrument | Prepaid expenses and other current assets
Derivatives, Fair Value [Line Items]
Derivative Assets	390	975
Foreign Currency Forward Contracts | Not Designated as Hedging Instrument | Other assets
Derivatives, Fair Value [Line Items]
Derivative Assets	11	0
Foreign Currency Forward Contracts | Not Designated as Hedging Instrument | Accrued expenses and other current liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	1,178	1,162
Foreign Currency Forward Contracts | Not Designated as Hedging Instrument | Other liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	42	61
Cash Flow Hedging | Foreign Currency Forward Contracts | Designated as Hedging Instrument | Prepaid expenses and other current assets
Derivatives, Fair Value [Line Items]
Derivative Assets	5,194	2,073
Cash Flow Hedging | Foreign Currency Forward Contracts | Designated as Hedging Instrument | Other assets
Derivatives, Fair Value [Line Items]
Derivative Assets	5,378	173
Cash Flow Hedging | Foreign Currency Forward Contracts | Designated as Hedging Instrument | Accrued expenses and other current liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	18,156	23,647
Cash Flow Hedging | Foreign Currency Forward Contracts | Designated as Hedging Instrument | Other liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	$ 15,501	$ 24,586

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