Stock-Based Compensation - Allocation of Stock-Based Compensation (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 28, 2013	Apr. 29, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation, pre-tax	$ 8,626	$ 5,326
Net change in stock-based compensation capitalized into inventory	77	66
Cost of Sales [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation, pre-tax	328	231
Selling, General and Administrative [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation, pre-tax	4,882	3,224
Product Development and Engineering [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation, pre-tax	$ 3,416	$ 1,871