Selected quarterly financial data (unaudited) - Quarterly Financial Information (Details) - USD ($) $ / shares in Units, $ in Thousands |
1 Months Ended | 3 Months Ended | 12 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Feb. 03, 2018 |
Feb. 03, 2018 |
Feb. 03, 2018 |
Oct. 28, 2017 |
Jul. 29, 2017 |
Apr. 29, 2017 |
Jan. 28, 2017 |
Oct. 29, 2016 |
Jul. 30, 2016 |
Apr. 30, 2016 |
Feb. 03, 2018 |
Jan. 28, 2017 |
Jan. 30, 2016 |
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| Selected quarterly financial data (unaudited) | |||||||||||||
| Fiscal period | 98 days | 91 days | 91 days | 91 days | 91 days | 91 days | 91 days | 91 days | 371 days | 364 days | 364 days | ||
| Net sales | $ 108,756 | $ 1,937,592 | $ 1,342,181 | $ 1,289,854 | $ 1,314,879 | $ 1,580,574 | $ 1,131,232 | $ 1,069,215 | $ 1,073,716 | $ 5,884,506 | $ 4,854,737 | $ 3,924,116 | |
| Cost of sales | 1,279,245 | 849,053 | 820,528 | 838,871 | 1,035,666 | 704,179 | 684,377 | 683,286 | 3,787,697 | 3,107,508 | 2,539,783 | ||
| Gross profit | 658,347 | 493,128 | 469,326 | 476,008 | 544,908 | 427,053 | 384,838 | 390,430 | 2,096,809 | 1,747,229 | 1,384,333 | ||
| Selling, general and administrative expenses | 399,631 | 320,729 | 283,427 | 283,445 | 316,266 | 280,464 | 236,380 | 240,724 | 1,287,232 | 1,073,834 | 863,354 | ||
| Pre-opening expenses | 4,297 | 9,732 | 6,099 | 4,158 | 4,412 | 6,928 | 4,689 | 2,542 | 24,286 | 18,571 | 14,682 | ||
| Operating income | 254,419 | 162,667 | 179,800 | 188,405 | 224,230 | 139,661 | 143,769 | 147,164 | 785,291 | 654,824 | 506,297 | ||
| Interest income, net | (359) | (316) | (555) | (338) | (116) | (211) | (248) | (315) | (1,568) | (890) | (1,143) | ||
| Income before income taxes | 254,778 | 162,983 | 180,355 | 188,743 | 224,346 | 139,872 | 144,017 | 147,479 | 786,859 | 655,714 | 507,440 | ||
| Income tax expense | $ (9,778) | 46,605 | 58,338 | 66,162 | 60,520 | 84,128 | 52,310 | 54,013 | 55,503 | 231,625 | 245,954 | 187,432 | |
| Net income | $ 208,173 | $ 104,645 | $ 114,193 | $ 128,223 | $ 140,218 | $ 87,562 | $ 90,004 | $ 91,976 | $ 555,234 | $ 409,760 | $ 320,008 | ||
| Net income per common share: | |||||||||||||
| Basic | $ 3.42 | $ 1.71 | $ 1.84 | $ 2.06 | $ 2.25 | $ 1.40 | $ 1.44 | $ 1.46 | $ 9.02 | $ 6.55 | $ 5.00 | ||
| Diluted | $ 3.40 | $ 1.70 | $ 1.83 | $ 2.05 | $ 2.24 | $ 1.40 | $ 1.43 | $ 1.45 | $ 8.96 | $ 6.52 | $ 4.98 | ||
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- Definition The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Duration of a fiscal period, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Includes, but not limited to, weeks in a year or quarter. No definition available.
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- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The net amount of operating interest income (expense). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The net result for the period of deducting operating expenses from operating revenues. No definition available.
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- Definition Expenditures associated with opening new locations which are noncapital in nature and expensed as incurred. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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