Summary of Significant Accounting Policies - Summary of Earnings per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	0 Months Ended	3 Months Ended								12 Months Ended
	Apr. 04, 2014	Jan. 30, 2015	Oct. 31, 2014	Aug. 01, 2014	May 02, 2014	Jan. 31, 2014	Nov. 01, 2013	Aug. 02, 2013	May 03, 2013	Jan. 30, 2015	Jan. 31, 2014	Feb. 01, 2013
Earnings Per Share [Abstract]
Net income		$ 33,095	$ 17,991	$ 11,845	$ 10,868	$ 45,943	$ 14,279	$ 11,289	$ 7,336	$ 73,799	$ 78,847	$ 49,827
Basic weighted average shares outstanding	31,956,521									31,957,000	31,957,000	31,957,000
Dilutive effect of stock awards (shares)										59,000	0	0
Diluted weighted average shares outstanding										32,016,000	31,957,000	31,957,000
Basic earnings per share (in dollars per share)		$ 1.04	$ 0.56	$ 0.37	$ 0.34					$ 2.31	$ 2.47	$ 1.56
Diluted earnings per share (in dollars per share)		$ 1.03	$ 0.56	$ 0.37	$ 0.34					$ 2.31	$ 2.47	$ 1.56
Antidilutive securities excluded from calculation (shares)										0	0	0