Consolidated Statements of Operations - USD ($) shares in Thousands	12 Months Ended
	Jan. 30, 2021	Feb. 01, 2020	Feb. 02, 2019
Income Statement [Abstract]
Net sales	$ 1,419,657,000	$ 1,184,234,000	$ 1,008,682,000
Cost of goods sold	915,169,000	800,783,000	679,947,000
Gross margin	504,488,000	383,451,000	328,735,000
Store operating, selling and administrative expenses	356,856,000	318,011,000	264,142,000
Goodwill impairment	19,661,000	0	0
Depreciation and amortization	29,583,000	29,323,000	27,052,000
Operating income	98,388,000	36,117,000	37,541,000
Interest income	127,000	1,225,000	731,000
Interest expense	(563,000)	(1,014,000)	(714,000)
Interest income (expense), net	(436,000)	211,000	17,000
Income before provision for income taxes	97,952,000	36,328,000	37,558,000
Provision for income taxes	23,686,000	8,984,000	9,137,000
Net income	$ 74,266,000	$ 27,344,000	$ 28,421,000
Basic earnings per share (in dollars per share)	$ 4.49	$ 1.54	$ 1.52
Diluted earnings per share (in dollars per share)	$ 4.36	$ 1.52	$ 1.51
Weighted average shares outstanding:
Basic (in shares)	16,547	17,746	18,644
Diluted (in shares)	17,037	17,957	18,826