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Stock-Based Compensation - Restricted Common Stock Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
	Feb. 06, 2021	Jan. 31, 2022	Jan. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment arrangement, expense		$ 87,889	$ 15,912
Restricted common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment arrangement, expense		10,900
Cost not yet recognized amount		$ 8,700
Cost not yet recognized, period for recognition		1 year
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