Summary of Significant Accounting Policies - Cumulative Effect Of Changes (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Feb. 03, 2024	Oct. 28, 2023	Jul. 29, 2023	Apr. 29, 2023	Jan. 28, 2023	Oct. 29, 2022	Jul. 30, 2022	Apr. 30, 2022	Feb. 03, 2024	Jan. 28, 2023	Jan. 29, 2022	Jan. 30, 2021
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Merchandise inventories, net	$ 1,194,159				$ 1,283,517				$ 1,194,159	$ 1,283,517
Total current assets	1,644,900				1,686,675				1,644,900	1,686,675
Total assets	4,676,713				4,595,439				4,676,713	4,595,439
Accrued expenses and other current liabilities	217,932				240,169				217,932	240,169
Total current liabilities	879,858				1,038,716				879,858	1,038,716
DEFERRED TAX LIABILITIES, NET	254,796				259,043				254,796	259,043
Total liabilities	2,722,063				2,967,133				2,722,063	2,967,133
Retained earnings	1,711,809				1,411,330				1,711,809	1,411,330
Stockholders' equity	1,954,650				1,628,306				1,954,650	1,628,306	$ 1,466,946	$ 1,111,983
Total liabilities and stockholders' equity	4,676,713				4,595,439				4,676,713	4,595,439
COST OF GOODS SOLD									4,049,080	4,182,571	4,422,033
Gross margin	597,009	$ 482,641	$ 563,446	$ 467,115	572,544	$ 522,471	$ 596,063	$ 521,424	2,110,211	2,212,502	2,351,095
Operating income	203,965	136,731	210,963	126,196	204,800	179,522	256,734	205,493	677,855	846,549	907,947
Income before income taxes									663,156	818,320	859,540
INCOME TAX EXPENSE									143,966	190,319	188,159
Net income	$ 168,167	$ 99,978	$ 157,075	$ 93,970	$ 157,653	$ 131,741	$ 188,801	$ 149,806	$ 519,190	$ 628,001	$ 671,381
Earnings per common share - basic (in dollars per share)	$ 2.27	$ 1.34	$ 2.06	$ 1.22	$ 2.03	$ 1.67	$ 2.28	$ 1.73	$ 6.89	$ 7.70	$ 7.38
Earnings per common share - diluted (in dollars per share)	$ 2.21	$ 1.31	$ 2.01	$ 1.19	$ 1.97	$ 1.62	$ 2.22	$ 1.69	$ 6.70	$ 7.49	$ 7.12
Deferred income taxes									$ (4,247)	$ 41,831	$ 79,490
LIFO charge									0
Income taxes payable									17,640	(3,407)	(14,129)
Net cash provided by operating activities									535,779	$ 552,005	$ 673,265
Effect of Change
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Merchandise inventories, net	$ (2,615)								(2,615)
Total current assets	(2,615)								(2,615)
Total assets	(2,615)								(2,615)
Accrued expenses and other current liabilities	(27,219)								(27,219)
Total current liabilities	(27,219)								(27,219)
DEFERRED TAX LIABILITIES, NET	26,609								26,609
Total liabilities	(610)								(610)
Retained earnings	(2,005)								(2,005)
Stockholders' equity	(2,005)								(2,005)
Total liabilities and stockholders' equity	(2,615)								(2,615)
COST OF GOODS SOLD									2,615
Gross margin									(2,615)
Operating income									(2,615)
Income before income taxes									(2,615)
INCOME TAX EXPENSE									(610)
Net income									$ (2,005)
Earnings per common share - basic (in dollars per share)									$ (0.03)
Earnings per common share - diluted (in dollars per share)									$ (0.03)
Deferred income taxes									$ 26,609
LIFO charge									2,615
Income taxes payable									(27,219)
Net cash provided by operating activities									0
Pro Forma
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Merchandise inventories, net	1,191,544								1,191,544
Total current assets	1,642,285								1,642,285
Total assets	4,674,098								4,674,098
Accrued expenses and other current liabilities	190,713								190,713
Total current liabilities	852,639								852,639
DEFERRED TAX LIABILITIES, NET	281,405								281,405
Total liabilities	2,721,453								2,721,453
Retained earnings	1,709,804								1,709,804
Stockholders' equity	1,952,645								1,952,645
Total liabilities and stockholders' equity	$ 4,674,098								4,674,098
COST OF GOODS SOLD									4,051,695
Gross margin									2,107,596
Operating income									675,240
Income before income taxes									660,541
INCOME TAX EXPENSE									143,356
Net income									$ 517,185
Earnings per common share - basic (in dollars per share)									$ 6.86
Earnings per common share - diluted (in dollars per share)									$ 6.67
Deferred income taxes									$ 22,362
LIFO charge									2,615
Income taxes payable									(9,579)
Net cash provided by operating activities									$ 535,779