CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Net loss	$ (261,322)	$ (100,872)	$ (566,901)	$ (256,301)
Other comprehensive income (loss):
Net unrealized gain (loss) on investments (net of tax)	(1,999)	710	686	1,042
Foreign currency translation adjustments	(783)	(1,029)	(104)	(2,020)
Total other comprehensive income (loss)	(2,782)	(319)	582	(978)
Comprehensive loss	$ (264,104)	$ (101,191)	$ (566,319)	$ (257,279)

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.

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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature, attributable to parent entity.

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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Amount after tax, before reclassification adjustments, of unrealized holding gain (loss) on available-for-sale securities.

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