Significant Products - Sales and Percentage of Total Net Sales by Significant Product Category (Detail) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jul. 29, 2017 |
Jul. 30, 2016 |
Jul. 29, 2017 |
Jul. 30, 2016 |
|
| Product Information [Line Items] | ||||
| Net sales | $ 1,687.6 | $ 1,631.8 | $ 3,733.5 | $ 3,603.3 |
| Percent of Total | 100.00% | 100.00% | 100.00% | 100.00% |
| New Video Game Hardware | ||||
| Product Information [Line Items] | ||||
| Net sales | $ 248.4 | $ 216.4 | $ 638.3 | $ 529.3 |
| Percent of Total | 14.70% | 13.30% | 17.10% | 14.70% |
| New Video Game Software | ||||
| Product Information [Line Items] | ||||
| Net sales | $ 369.3 | $ 382.2 | $ 889.8 | $ 949.4 |
| Percent of Total | 21.90% | 23.40% | 23.80% | 26.30% |
| Pre-Owned Video Game Products | ||||
| Product Information [Line Items] | ||||
| Net sales | $ 501.8 | $ 542.6 | $ 1,028.0 | $ 1,103.5 |
| Percent of Total | 29.70% | 33.30% | 27.50% | 30.60% |
| Video Game Accessories | ||||
| Product Information [Line Items] | ||||
| Net sales | $ 144.1 | $ 119.5 | $ 320.2 | $ 282.2 |
| Percent of Total | 8.50% | 7.30% | 8.60% | 7.80% |
| Digital | ||||
| Product Information [Line Items] | ||||
| Net sales | $ 46.5 | $ 36.3 | $ 90.6 | $ 79.1 |
| Percent of Total | 2.80% | 2.20% | 2.40% | 2.20% |
| Technology Brands [Member] | ||||
| Product Information [Line Items] | ||||
| Net sales | $ 188.3 | $ 175.9 | $ 389.7 | $ 341.7 |
| Percent of Total | 11.20% | 10.80% | 10.40% | 9.50% |
| Collectibles [Member] | ||||
| Product Information [Line Items] | ||||
| Net sales | $ 122.5 | $ 90.0 | $ 237.0 | $ 172.3 |
| Percent of Total | 7.30% | 5.50% | 6.40% | 4.80% |
| Other | ||||
| Product Information [Line Items] | ||||
| Net sales | $ 66.7 | $ 68.9 | $ 139.9 | $ 145.8 |
| Percent of Total | 3.90% | 4.20% | 3.80% | 4.10% |