Debt - Additional Information (Detail) - USD ($)		3 Months Ended			6 Months Ended
	Jan. 25, 2018	Apr. 29, 2018	Jan. 28, 2018	Apr. 30, 2017	Apr. 29, 2018	Apr. 30, 2017	Jan. 24, 2018	Oct. 29, 2017
Extinguishment of Debt [Line Items]
Approximate weekly employee compensation, payroll taxes and payments to vendors					$ 20,000,000
Line of Credit
Extinguishment of Debt [Line Items]
Current borrowing capacity	$ 160,000,000.0						$ 115,000,000.0
Letter of Credit
Extinguishment of Debt [Line Items]
Fair value of amount outstanding		$ 24,600,000			24,600,000
Collateral		30,000,000			30,000,000
Letter of Credit | Short Term Financing Program
Extinguishment of Debt [Line Items]
Fair value of amount outstanding		23,500,000			23,500,000
Letter of Credit, Security Deposit
Extinguishment of Debt [Line Items]
Fair value of amount outstanding		1,100,000			$ 1,100,000
Minimum | Line of Credit
Extinguishment of Debt [Line Items]
Target liquidity ratio					1.5
Maximum | Line of Credit
Extinguishment of Debt [Line Items]
Target liquidity ratio					2.0
DZ Financing Program
Extinguishment of Debt [Line Items]
Debt covenant, minimum tangible net worth					$ 40,000,000.0
Debt covenant, maximum debt to tangible net worth ratio					3
Debt covenant, minimum liquid assets		15,000,000.0			$ 15,000,000.0
Long-term debt		$ 50,000,000			$ 50,000,000			$ 50,000,000
Interest rate during period		3.40%			3.40%
DZ Financing Program | Line of Credit
Extinguishment of Debt [Line Items]
Interest rate during period			4.00%	2.80%		2.70%
Available borrowing capacity of facility		$ 32,900,000			$ 32,900,000
DZ Financing Program | Letter of Credit
Extinguishment of Debt [Line Items]
Current borrowing capacity	$ 35,000,000
Federal Funds Rate | DZ Financing Program | Letter of Credit
Extinguishment of Debt [Line Items]
Basis spread on variable rate	3.00%
Prime Rate | DZ Financing Program | Letter of Credit
Extinguishment of Debt [Line Items]
Basis spread on variable rate	2.50%