Summary of Significant Accounting Policies - Long-Lived Assets by Geographic Region (Details) - USD ($) $ in Thousands	Jan. 31, 2025	Jan. 31, 2024
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	$ 396,271	$ 372,846
U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	183,244	189,227
Romania
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	86,933	81,740
United Kingdom
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	75,574	45,445
Netherlands
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	24,071	27,004
Rest of world
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	$ 26,449	$ 29,430