Debt - Additional Information (Details) - USD ($)		3 Months Ended			9 Months Ended
	Jan. 25, 2018	Jul. 29, 2018	Jan. 28, 2018	Jul. 30, 2017	Jul. 29, 2018	Jul. 30, 2017	Jun. 08, 2018	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
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		3.60%			3.50%
DZ Financing Program | Line of Credit
Extinguishment of Debt [Line Items]
Current borrowing capacity	$ 115,000,000.0
Interest rate during period			4.00%	3.10%		2.90%
Available borrowing capacity of facility		$ 30,300,000			$ 30,300,000
DZ Financing Program | Letter of Credit
Extinguishment of Debt [Line Items]
Current borrowing capacity	$ 35,000,000
Additional borrowing capacity							$ 10,000,000
Fair value of amount outstanding		25,400,000			25,400,000
Collateral		30,000,000			30,000,000
DZ Financing Program | Letter of Credit | Short Term Financing Program
Extinguishment of Debt [Line Items]
Fair value of amount outstanding		23,500,000			23,500,000
DZ Financing Program | Letter of Credit, Security Deposit
Extinguishment of Debt [Line Items]
Fair value of amount outstanding		1,100,000			1,100,000
DZ Financing Program | Letter of Credit, Credit Card Program
Extinguishment of Debt [Line Items]
Fair value of amount outstanding		$ 800,000			$ 800,000
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%