v3.20.1
Fair Value Measurements and Financial Instruments - Gains and Losses on Derivative Instruments and Foreign Currency Transaction (Detail) - Selling, General and Administrative Expenses [Member] - USD ($)
$ in Millions
12 Months Ended
Feb. 01, 2020
Feb. 02, 2019
Feb. 03, 2018
Fair Value Derivative Contract Assets and Liabilities Measured On Recurring Basis Gain Loss Included In Earnings [Line Items]      
Gains (losses) on the changes in fair value of derivative instruments $ 4.1 $ 9.6 $ (24.6)
(Losses) gains on the re-measurement of related intercompany loans denominated in foreign currencies (3.1) (6.6) 27.0
Net gains $ 1.0 $ 3.0 $ 2.4