Debt - Subordinated Term Loan (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jul. 30, 2022	Sep. 30, 2020
Debt Instrument [Line Items]
Debt instrument, periodic payment maturity date	May 08, 2022
Limits on capital spending	$ 23,000
Subordinated Term Loan [Member]
Debt Instrument [Line Items]
Debt instrument, periodic payment maturity date	Nov. 08, 2024
Debt instrument, interest rate description	Loans under the Subordinated Facility bear interest at the Borrower’s election at (1) Base Rate (as defined in the Subordinated Facility) plus 11.00% or (2) LIBOR plus 12.00%, with a minimum LIBOR per annum of 1.00%.
Debt instrument, additional basis spread rate	11.00%
Debt instrument, financial covenant, description	The Subordinated Facility also has certain financial covenants, including (1) a minimum liquidity covenant that generally requires minimum liquidity on a weekly basis of $12.75 million, (2) a first lien net leverage ratio that requires compliance beginning in the fourth quarter of Fiscal Year 2021 with a net leverage ratio of 5.75:1, which reduces over time, and (3) limits on capital spending of $23.0 million annually. The difference between the carrying value of the subordinated facility debt and the principal amount was accreted over the term of the debt using the effective interest method.
Minimum liquidity covenant amount	$ 12,750
Net leverage ratio	5.75
Principal amount of term loan		$ 15,000
Subordinated Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread rate	12.00%
Debt instrument, minimum LIBOR	1.00%