Stock-Based Compensation - Summary of the Activity for Stock Option Awards (Details) (Stock options [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	9 Months Ended
	Oct. 26, 2014
Stock options [Member]
Number of Shares
Beginning balance (in shares)	1,935
Options granted (in shares)	381
Options exercised (in shares)	(484)
Options cancelled/forfeited (in shares)	(41)
Ending balance (in shares)	1,791
Exercisable at end of period (in shares)	1,005
Weighted Average Exercise Price (per share)
Beginning balance (in dollars per share)	$ 21.33
Options granted (in dollars per share)	$ 24.49
Options exercised (in dollars per share)	$ 16.42
Options cancelled/forfeited (in dollars per share)	$ 26.60
Ending balance (in dollars per share)	$ 23.21
Exercisable at end of period (in dollars per share)	$ 20.30
Aggregate Intrinsic Value
Beginning balance	$ 7,722
Options exercised	4,599
Ending balance	4,952
Exercisable at end of period	4,872
Aggregate Unrecognized Compensation
Beginning balance	4,354
Ending balance	$ 4,968
Number of Shares Exercisable
Exercisable at beginning of period (in shares)	1,275
Exercisable at end of period (in shares)	1,005
Weighted Average Contractual Term (in years)
Exercisable at end of period	2 years 5 months