Commitments and Contingencies - Narrative (Details) (USD $) In Millions, unless otherwise specified			6 Months Ended
	Jul. 27, 2014	Oct. 28, 2012	Jul. 27, 2014 Cycleo [Member]	Jan. 26, 2014 Cycleo [Member]
Loss Contingencies [Line Items]
Range of possible loss, minimum	$ 2.5
Range of possible loss, maximum	5.7
Environmental loss contingency accrual, at carrying value	2.5	2.5
Potential payments under earn-out arrangements, high estimate			16.0
Potential payments under earn-out arrangements, payout period			4 years
Cumulative earn-out liability			$ 0.9	$ 0.9