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Components of Income (Loss) before Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2021	Jan. 31, 2020	Jan. 31, 2019
Income Tax Disclosure [Abstract]
Domestic	$ 13,103	$ 233,742	$ 336,823
Foreign	(9,590)	5,978	48,730
Income before income taxes	$ 3,513	$ 239,720	$ 385,553

X

- Definition

The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.

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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.

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