Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 29, 2017	Apr. 30, 2016
Numerator
Net income	$ 33,619	$ 31,084
Net income and dividends declared allocated to participating securities	(741)	(646)
Net income available to common shareholders	$ 32,878	$ 30,438
Denominator
Weighted average common shares outstanding – basic (in shares)	126,050	131,594
Dilutive effect of non-participating securities (in shares)	53	95
Weighted average common and common equivalent shares outstanding – diluted (in shares)	126,103	131,689
Net income per share:
Basic (in dollars per share)	$ 0.26	$ 0.23
Diluted (in dollars per share)	$ 0.26	$ 0.23