Stock-Based Compensation - Narrative (Detail) - USD ($)		1 Months Ended	3 Months Ended		6 Months Ended
	Oct. 18, 2020	Oct. 31, 2020	Jul. 30, 2022	Jul. 31, 2021	Jul. 30, 2022	Jul. 31, 2021
Share Based Compensation Arrangement By Share Based Payment Award
Stock-based compensation expense			$ 11,000,000	$ 10,000,000	$ 23,538,000	$ 25,431,000
Stock-based compensation cost capitalized			0	0	0	0
Selling, general and administrative expenses			288,804,000	238,688,000	582,099,000	457,777,000
2012 Stock Incentive Plan and 2012 Stock Option Plan | Stock Options
Share Based Compensation Arrangement By Share Based Payment Award
Unrecognized compensation expense related to unvested options			90,000,000		$ 90,000,000
Unrecognized compensation expense with weighted-average period					4 years 5 months 8 days
Aggregate intrinsic value of options outstanding			676,000,000		$ 676,000,000
Aggregate intrinsic value of options vested or expected to vest			656,000,000		656,000,000
Aggregate intrinsic value of options exercisable			586,000,000		$ 586,000,000
Weighted-average remaining contractual life of options exercisable					4 years 3 months 3 days
2012 Stock Incentive Plan and 2012 Stock Option Plan | Stock Options | Chairman and Chief Executive Officer
Share Based Compensation Arrangement By Share Based Payment Award
Unrecognized compensation expense related to unvested options			23,000,000		$ 23,000,000
2012 Stock Incentive Plan and 2012 Stock Option Plan | Restricted Stock And Restricted Stock Unit
Share Based Compensation Arrangement By Share Based Payment Award
Unrecognized compensation expense related to unvested options			$ 7,600,000		$ 7,600,000
Unrecognized compensation expense with weighted-average period					4 years 3 months 14 days
Restricted stock awards outstanding			22,670		22,670
Restricted stock awards outstanding with weighted-average grant date fair value per share			$ 436.17		$ 436.17
Weighted-average fair value per share of awards granted			$ 51.28		$ 159.65
Vested restricted stock unit			700		2,920
2012 Stock Incentive Plan [Member] | Chairman and Chief Executive Officer
Share Based Compensation Arrangement By Share Based Payment Award
Stock-based compensation expense		$ 174,000,000	$ 4,300,000	$ 5,800,000	$ 10,000,000	$ 12,000,000
Option to purchase of common stock	700,000
Exercise price of option granted	$ 385.30