Computation of Basic and Diluted Net Income per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 30, 2022	Jul. 31, 2021	Jul. 30, 2022	Jul. 31, 2021
Basic net income per share
Net income	$ 11,966	$ 102,554	$ 28,139	$ 273,584
Weighted average number of common shares – basic	65,803	66,636	66,042	66,516
Net income per common share - basic	$ 0.18	$ 1.54	$ 0.43	$ 4.11
Diluted net income per share
Net income	$ 11,966	$ 102,554	$ 28,139	$ 273,584
Weighted average number of common shares – basic	65,803	66,636	66,042	66,516
Assumed exercise of stock options and vesting of restricted stock	159	660	262	711
Assumed conversion of convertible debt		1,152		1,013
Weighted average number of common shares – diluted	65,962	68,448	66,304	68,240
Net income per common share - diluted	$ 0.18	$ 1.50	$ 0.42	$ 4.01