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Fair Value Measurements - Summary of Fair Value Hierarchy for Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Table Footnote) (Details)
$ in Millions
Jan. 31, 2021
USD ($)
Foreign currency forward contracts  
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
Derivative notional amount $ 2.9