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Long-Term Debt (Parenthetical) (Detail) - USD ($) $ in Thousands		9 Months Ended		12 Months Ended
	Apr. 16, 2020	Oct. 30, 2021	Oct. 31, 2020	Jan. 30, 2021	Jun. 11, 2021	Apr. 30, 2020	Mar. 17, 2020
Senior Secured Term B-6 Loans
Debt Instrument [Line Items]
Long-Term Debt, maturity date		Jun. 24, 2028	Jun. 24, 2028	Jun. 24, 2028
Senior Secured Term B-5 Loans
Debt Instrument [Line Items]
Long-Term Debt, redemption date		Jun. 24, 2021	Jun. 24, 2021	Jun. 24, 2021
Convertible Senior Notes
Debt Instrument [Line Items]
Long-Term Debt, maturity date	Apr. 15, 2025	Apr. 15, 2025
Long-Term Debt, face amount	$ 805,000	$ 805,000				$ 805,000
Long-Term Debt, interest rate	2.25%	2.25%				2.25%
Senior Secured Notes
Debt Instrument [Line Items]
Long-Term Debt, redemption date		Jun. 11, 2021
Long-Term Debt, face amount	$ 300,000	$ 300,000			$ 300,000
Long-Term Debt, interest rate	6.25%	6.25%
ABL senior secured revolving facility
Debt Instrument [Line Items]
Long-Term Debt, maturity date		Jun. 29, 2023
Long-Term Debt, face amount		$ 600,000					$ 400,000
London Interbank Offered Rate Floor | Senior Secured Term B-6 Loans
Debt Instrument [Line Items]
Long-Term Debt, interest rate		0.00%	0.00%	0.00%
London Interbank Offered Rate Floor | Senior Secured Term B-5 Loans
Debt Instrument [Line Items]
Long-Term Debt, interest rate		0.00%	0.00%	0.00%
London Interbank Offered Rate (LIBOR) | Senior Secured Term B-6 Loans
Debt Instrument [Line Items]
Long-Term Debt, interest rate		2.00%	2.00%	2.00%
London Interbank Offered Rate (LIBOR) | Senior Secured Term B-5 Loans
Debt Instrument [Line Items]
Long-Term Debt, interest rate		1.75%	1.75%	1.75%

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