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Stock-Based Compensation - Performance Share Units Narrative (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	May 03, 2022	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2022	Jul. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense		$ 41,001	$ 21,393	$ 34,830	$ 72,631
Attivo
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 32,900
Performance share units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense		200		200
Cost not yet recognized amount		$ 1,400		$ 1,400
Cost not yet recognized, period for recognition				1 year 4 months 24 days
Performance share units \| Attivo
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)				71,003
Vesting percentage				100.00%