Equity-Based Compensation - Schedule of Equity-based Compensation Expense by Award Type (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2026	Jul. 31, 2025	Jul. 31, 2026	Jul. 31, 2025
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Total equity-based compensation expense	$ 69,811	$ 48,984	$ 140,427	$ 209,689
Incentive equity units
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Total equity-based compensation expense	0	0	0	62,358
Equity appreciation rights
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Total equity-based compensation expense	0	0	0	13,307
Restricted stock awards
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Total equity-based compensation expense	744	2,884	2,084	7,836
Restricted stock units
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Total equity-based compensation expense	67,265	46,035	136,181	84,552
Employee stock purchase plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Total equity-based compensation expense	1,802	0	2,146	0
Cash-settled awards
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Total equity-based compensation expense	$ 0	$ 65	$ 16	$ 41,636