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Stock-Based Compensation - Restricted Common Stock Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		6 Months Ended
	Feb. 06, 2021	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2022	Jul. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment arrangement, expense		$ 41,001	$ 21,393	$ 34,830	$ 72,631
Restricted common stock \| Scalyr
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (in shares)	1,315,099
Shares granted, fair value (in USD per share)	$ 14.59
Award vesting period	2 years
Share-based payment arrangement, expense		2,100	$ 3,100	4,200	$ 5,500
Cost not yet recognized amount		$ 4,400		$ 4,400
Cost not yet recognized, period for recognition				6 months