Income Taxes - Components of the Net Income (Loss) before Provision of Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2025	Jan. 31, 2024	Jan. 31, 2023
Income Tax Disclosure [Abstract]
Domestic	$ 1,238,452	$ 792,495	$ 196,224
Foreign	77,132	39,817	53,052
Income before provision for income taxes	$ 1,315,584	$ 832,312	$ 249,276