Recent Accounting Pronouncements (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended								12 Months Ended
		Feb. 02, 2019	Nov. 03, 2018	Aug. 04, 2018	May 05, 2018	Feb. 03, 2018	Oct. 28, 2017	Jul. 29, 2017	Apr. 29, 2017	Feb. 02, 2019	Feb. 03, 2018	Jan. 28, 2017
Adoption of ASU Consolidated Balance Sheet [Abstract]
Inventories, net		$ 280,287				$ 253,201				$ 280,287	$ 253,201
Prepaid expenses and other		16,343				13,430				16,343	13,430
Accounts payable		107,315				93,435				107,315	93,435
Other accrued expenses		10,174				5,136				10,174	5,136
Adoption of ASU Consolidated Statement of Operations [Abstract]
Net sales		305,964	$ 216,888	$ 211,123	$ 274,707	266,738	$ 237,834	$ 187,958	$ 275,688	1,008,682	968,219	$ 972,960
Cost of goods sold										679,947	655,502	634,364
Gross margin		95,099	70,512	66,351	96,773	83,977	76,113	54,408	98,218	328,735	312,717	338,596
Store operating, selling and administrative expenses										264,142	231,832	222,785
Income before provision for income taxes										37,558	56,447	96,496
Provision for income taxes										9,137	21,417	35,421
Net income		$ 6,634	$ 1,499	$ (1,222)	$ 21,509	$ 9,733	$ 7,564	$ (3,176)	$ 20,910	$ 28,421	$ 35,030	$ 61,075
Diluted earnings per share (in dollars per share)		$ 0.36	$ 0.08	$ (0.06)	$ 1.12	$ 0.51	$ 0.37	$ (0.15)	$ 0.97	$ 1.51	$ 1.71	$ 2.72
ASU 2014-09 Effect [Member]
Adoption of ASU Consolidated Balance Sheet [Abstract]
Inventories, net	[1]	$ (130)								$ (130)
Prepaid expenses and other	[1]	(252)								(252)
Accounts payable	[1]	693								693
Other accrued expenses	[1]	(49)								(49)
Adoption of ASU Consolidated Statement of Operations [Abstract]
Net sales										(977)
Cost of goods sold										(110)
Gross margin										(867)
Store operating, selling and administrative expenses										(68)
Income before provision for income taxes										(800)
Provision for income taxes										(194)
Net income										$ (606)
Diluted earnings per share (in dollars per share)										$ (0.03)
Excluding ASU 2014-09 Effect [Member]
Adoption of ASU Consolidated Balance Sheet [Abstract]
Inventories, net		280,417								$ 280,417
Prepaid expenses and other		16,595								16,595
Accounts payable		106,622								106,622
Other accrued expenses		10,223								10,223
Adoption of ASU Consolidated Statement of Operations [Abstract]
Net sales										1,009,659
Cost of goods sold										680,057
Gross margin										329,602
Store operating, selling and administrative expenses										264,210
Income before provision for income taxes										38,358
Provision for income taxes										9,331
Net income										$ 29,027
Diluted earnings per share (in dollars per share)										$ 1.54
Accounting Standards Update 2014-09 [Member]
Adoption of ASU Consolidated Balance Sheet [Abstract]
Cumulative effect of new accounting principle in period of adoption		(600)								$ (600)
Accounting Standards Update 2016-02 [Member] | Plan [Member]
Adoption of ASU Consolidated Statement of Operations [Abstract]
Additional operating liabilities		230,000								230,000
ROU assets		$ 210,000								$ 210,000

[1] Does not include the cumulative effect of initially adopting ASU 2014-09 to our consolidated balance sheet as adjusted as of February 4, 2018.