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Derivative Financial Instruments (Details)
$ in Millions
9 Months Ended 12 Months Ended
May 02, 2020
USD ($)
derivative
May 02, 2021
USD ($)
Aug. 03, 2019
USD ($)
Derivative [Line Items]      
Unrealized gain (loss) on interest rate cash flow hedges, pretax, accumulated other comprehensive income (loss) $ 8.4    
Unrealized gain (loss) on interest rate cash flow hedges, pretax, accumulated other comprehensive income (loss)     $ 6.3
Designated as Hedging Instrument | Cash Flow Hedging | Interest rate swap      
Derivative [Line Items]      
Number of Instruments | derivative 1    
Notional Agreement Principal Amount $ 600.0    
Interest Rate (percent) 6.85%    
Interest Expense | Scenario, Forecast      
Derivative [Line Items]      
Other comprehensive income (loss), reclassification adjustment from AOCI on derivatives, net of tax   $ 8.4  
Fair Value, Inputs, Level 2 | Designated as Hedging Instrument | Cash Flow Hedging | Interest rate swap      
Derivative [Line Items]      
Derivative fair value, net $ 8.4   6.3
Fair Value, Inputs, Level 2 | Accrued Expenses and Other Current Liabilities | Designated as Hedging Instrument | Cash Flow Hedging | Interest rate swap      
Derivative [Line Items]      
Derivative fair value, net $ 8.4   3.1
Fair Value, Inputs, Level 2 | Other Noncurrent Liabilities | Designated as Hedging Instrument | Cash Flow Hedging | Interest rate swap      
Derivative [Line Items]      
Derivative fair value, net     $ 3.2