Stock-Based Compensation - Restricted Common Stock Narrative (Details) - USD ($)		1 Months Ended	3 Months Ended		9 Months Ended
	May 03, 2022	Feb. 28, 2021	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2023	Oct. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment arrangement, expense			$ 54,913,000	$ 45,687,000	$ 118,318,000	$ 163,308,000
Attivo
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment arrangement, expense	$ 32,900,000
Restricted common stock | Attivo
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (in shares)	63,327
Share-based payment arrangement, expense			100,000	300,000	500,000	600,000
Cost not yet recognized amount			500,000		500,000
Restricted common stock | Scalyr
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (in shares)		1,315,099
Share-based payment arrangement, expense			$ 0	$ 2,100,000	$ 200,000	$ 6,400,000