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Schedule of Revenues and Long-Lived Assets, by Domestic and Foreign Operations Segment (Detail) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Apr. 30, 2020 | Apr. 30, 2019 | Jan. 31, 2020
Segment Reporting Information [Line Items] |  |  |
Total property and equipment, net | $ 880,353 | $ 829,072 | $ 890,032
Total net sales | 588,483 | 864,413 |
Domestic Operations |  |  |
Segment Reporting Information [Line Items] |  |  |
Total property and equipment, net | 741,237 | 758,794 | 763,411
Total net sales | 523,556 | 763,089 |
Foreign Operations |  |  |
Segment Reporting Information [Line Items] |  |  |
Total property and equipment, net | 139,116 | 70,278 | $ 126,621
Total net sales | $ 64,927 | $ 101,324 |

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