Income Taxes - Components of Pre-Tax Loss (Details) - USD ($) $ in Thousands	12 Months Ended
Jan. 31, 2020	Jan. 31, 2019	Jan. 31, 2018
Income Tax Disclosure [Abstract]
U.S.	$ (228,476)	$ (460,627)	$ (54,485)
International	24,920	32,419	5,343
Loss before provision for (benefit from) income taxes	$ (203,556)	$ (428,208)	$ (49,142)

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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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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