Restructuring and Strategic Charges - Summary of Restructuring and Strategic Charges (Details) - USD ($)	3 Months Ended
	Apr. 29, 2017	Apr. 30, 2016
Restructuring Cost and Reserve [Line Items]
Total restructuring and strategic charges, pre-tax	$ 0	$ 3,651,000
Continuing employee-related costs
Restructuring Cost and Reserve [Line Items]
Restructuring and strategic charges, pre-tax		1,015,000
Severance charges
Restructuring Cost and Reserve [Line Items]
Restructuring and strategic charges, pre-tax		1,184,000
Lease termination charges
Restructuring Cost and Reserve [Line Items]
Restructuring and strategic charges, pre-tax		221,000
Outside services & other
Restructuring Cost and Reserve [Line Items]
Restructuring and strategic charges, pre-tax		$ 1,231,000