Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 28, 2017	Oct. 29, 2016	Oct. 28, 2017	Oct. 29, 2016
Numerator
Net income	$ 16,690	$ 23,598	$ 73,025	$ 77,721
Net income and dividends declared allocated to participating securities	(394)	(502)	(1,683)	(1,677)
Net income available to common shareholders	$ 16,296	$ 23,096	$ 71,342	$ 76,044
Denominator
Weighted average common shares outstanding – basic (in shares)	124,957	128,753	125,550	129,830
Dilutive effect of non-participating securities (in shares)	32	243	41	169
Weighted average common and common equivalent shares outstanding – diluted (in shares)	124,989	128,996	125,591	129,999
Net income per share:
Basic (in dollars per share)	$ 0.13	$ 0.18	$ 0.57	$ 0.59
Diluted (in dollars per share)	$ 0.13	$ 0.18	$ 0.57	$ 0.58