Restructuring Charges (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 31, 2015	Nov. 01, 2014	Oct. 31, 2015	Nov. 01, 2014	Jan. 31, 2015	Feb. 01, 2014
Restructuring activity
Restructuring charges	$ 0	$ 0	$ 0	$ 0
Severance, impairment and lease termination costs
Restructuring activity
Restructuring charges						$ 12,400,000
Severance
Restructuring reserve activity
Beginning balance			276,000	$ 4,578,000	$ 4,578,000
Cash payments			(172,000)		(2,952,000)
Foreign currency and other adjustments			(67,000)		(1,350,000)
Ending balance	$ 37,000		$ 37,000		276,000	$ 4,578,000
Accrued expenses
Restructuring activity
Restructuring reserve included in accrued expenses					$ 276,000