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Components of Income (Loss) before Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2024	Jan. 31, 2023	Jan. 31, 2022
Income Tax Disclosure [Abstract]
Domestic	$ 378,265	$ 217,894	$ 389,059
Foreign	3,342	3,385	15,572
Income before income taxes	$ 381,607	$ 221,279	$ 404,631

X

- Definition

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

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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.

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The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile.

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