Income Taxes - Schedule of Provision for Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2023	Oct. 31, 2022
Income Tax Disclosure [Abstract]
Income before provision for income taxes	$ 185,826	$ 54,749	$ 479,429	$ 288,820
Provision for income taxes	$ 44,614	$ 6,396	$ 140,799	$ 81,059
Effective tax rate	24.00%	11.70%	29.40%	28.10%