Income Taxes - Narrative (Details) (USD $)	3 Months Ended
	Apr. 27, 2014	Jan. 26, 2014
Income Tax Disclosure [Abstract]
Statutory federal income tax rate	35.00%
Percentage of uncertain tax positions evaluating criteria	50.00%
Reductions for settlements with tax authorities	$ (3,275,000)
Net tax benefits, if recognized, would impact the effective tax rate	9,100,000	12,300,000
Unrecognized tax benefits, interest and penalties	$ 293,000	$ 293,000