Revenue Recognition - Deferred Revenue and Deferred Contract Acquisition Costs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2025	Jul. 31, 2024	Jul. 31, 2025	Jul. 31, 2024
Revenue from Contract with Customer [Abstract]
Deferred revenue recognized			$ 362,600	$ 309,000
Amortization of deferred contract acquisition costs	$ 22,800	$ 20,900	$ 44,165	$ 39,392