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Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2025	Jul. 31, 2024	Jul. 31, 2025	Jul. 31, 2024
Income Tax Disclosure [Abstract]
Provision for (benefit from) income taxes	$ 13,490	$ (816,324)	$ 15,193	$ (813,491)
Release of valuation allowance		$ 837,700		$ 837,700
Unrecognized tax benefits	82,700		82,700
Unrecognized tax benefits that would impact effective tax rate	$ 66,200		$ 66,200

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