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Fair Value Measurements - Narrative (Details) - USD ($)
$ in Millions
Jan. 31, 2021
Nov. 01, 2020
Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Short-term investments $ 3.2 $ 2.9
Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt $ 59.1 $ 59.2