Debt - Credit Facility - Additional Information (Detail) - USD ($)	Nov. 02, 2013	Dec. 07, 2011	Jan. 30, 2016	Oct. 31, 2015	Jan. 31, 2015
Line of Credit Facility [Line Items]
Line of credit				$ 35,000,000	$ 0
Guarantee obligations [Member]
Line of Credit Facility [Line Items]
Letters of credit outstanding				14,000,000	$ 7,000,000
Wells Credit Facility [Member] | Wells Fargo Bank NA [Member]
Line of Credit Facility [Line Items]
Maximum borrowing capacity		$ 100,000,000
Revolving credit facility reference to floating interest rate	1.94%
Availability under Wells Fargo Facility				22,000,000
Minimum availability				10,000,000
Weekly borrowing base delivery event threshold				35,000,000
Cash dominion event threshold				$ 25,000,000
Temporary cash dominion event threshold				15.00%
Wells Credit Facility [Member] | Line of Credit [Member] | Five-Year Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Term loan maturity period		5 years
Swing-line loans [Member] | Wells Fargo Bank NA [Member]
Line of Credit Facility [Line Items]
Maximum borrowing capacity				$ 12,500,000
Scenario, Forecast [Member]
Line of Credit Facility [Line Items]
Line of credit			$ 35,000,000