Segment Reporting - Summary of Adjusted Subscription Cost of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2025	Jan. 31, 2024	Jan. 31, 2023
Segment Reporting Information [Line Items]
Total cost of revenue	$ 265,748	$ 144,962	$ 182,014
Less:
Stock-based compensation expense	913,913	5,715	6,954
Software And Services
Less:
Stock-based compensation expense	49,514	45	53
Amortization of acquired intangibles	3,673	1,676	822
Stock-based compensation from amortization of capitalized internal-use software	273	153	287
Laminar Technologies, Inc.
Less:
Amortization of acquired intangibles	3,700	1,700	800
Laminar Technologies, Inc. | Software And Services
Less:
Amortization of acquired intangibles	3,673	1,676	822
Subscription
Segment Reporting Information [Line Items]
Total cost of revenue	215,036	97,927	62,294
Subscription | Software And Services
Segment Reporting Information [Line Items]
Total cost of revenue	215,036	97,927	62,294
Less:
Adjusted subscription cost of revenue	$ 161,576	$ 96,053	$ 61,132