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Changes in Accumulated Other Comprehensive Loss (Parenthetical) (Detail) - Derivative Instruments - USD ($)
$ in Millions
12 Months Ended
Feb. 01, 2020
Feb. 02, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Unrealized gains (losses) on Interest Rate Cap Contracts, Tax $ 6.4 $ 1.2
Amount reclassified into earnings on Interest Rate Cap Contracts, Tax $ 0.5 $ 0.5