Net Income Per Share - Anti-Dilutive Securities Excluded from Diluted Net Income per Share (Detail) - shares	3 Months Ended		6 Months Ended
	Jul. 30, 2022	Jul. 31, 2021	Jul. 30, 2022	Jul. 31, 2021
Antidilutive Securities Excluded from Computation of Earnings Per Share
Options were excluded from calculation of diluted net income share	1,099,235	82,562	1,102,668	68,918
Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share
Options were excluded from calculation of diluted net income share	1,079,767	82,562	1,083,158	68,918
Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share
Options were excluded from calculation of diluted net income share	19,468		19,510