Income Taxes - Income tax reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2025	Feb. 02, 2024	Feb. 03, 2023
Reconciliation between actual income taxes and amounts computed by applying federal statutory rate
U.S. federal statutory rate on earnings before income taxes	$ 302,349	$ 445,098	$ 654,489
State income taxes, net of federal income tax benefit	33,270	47,855	82,134
Jobs credits, net of federal income taxes	(33,345)	(34,279)	(37,639)
Other, net	12,227	(429)	1,641
Total provision (benefit) for income taxes	$ 314,501	$ 458,245	$ 700,625
U.S. federal statutory rate on earnings before income taxes (as a percent)	21.00%	21.00%	21.00%
State income taxes, net of federal income tax benefit (as a percent)	2.30%	2.20%	2.60%
Jobs credits, net of federal income taxes (as a percent)	(2.30%)	(1.60%)	(1.20%)
Other, net (as a percent)	0.80%		0.10%
Total provision (benefit) for income taxes (as a percent)	21.80%	21.60%	22.50%
Increase in tax rate	0.20%
Decrease in tax rate		0.90%