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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

X

- Definition

Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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