v3.26.1
Convertible Notes - Schedule of Changes in Fair Value of Notes and Related Impact (Details) - USD ($)
$ in Thousands
 3 Months Ended
Apr. 30, 2026
Apr. 30, 2025
Debt Instrument [Line Items]    
Beginning Balance $ 720,960 $ 626,622
Change in fair value reported in the Condensed Consolidated Statement of Operations 12,225 33,429
Change in fair value reported in Condensed Consolidated Statement of Comprehensive Loss $ (19,864) $ (21,228)
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Asset, Gain (Loss), Statement of Other Comprehensive Income or Comprehensive Income [Extensible Enumeration] Unrealized (Loss) Gain on Convertible Notes, Net of Tax Unrealized (Loss) Gain on Convertible Notes, Net of Tax
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Debt Securities, Gain (Loss) Debt Securities, Gain (Loss)
Ending Balance $ 713,321 $ 638,823
Remaining unpaid principal 476,000  
2028 Notes    
Debt Instrument [Line Items]    
Beginning Balance 626,648 547,261
Issuance during the period 401,000  
Change in fair value reported in the Condensed Consolidated Statement of Operations 12,037 28,137
Change in fair value reported in Condensed Consolidated Statement of Comprehensive Loss (17,276) (16,558)
Ending Balance 621,409 558,840
Remaining unpaid principal 401,000  
2029 Notes    
Debt Instrument [Line Items]    
Beginning Balance 94,312 79,361
Issuance during the period 75,000  
Change in fair value reported in the Condensed Consolidated Statement of Operations 188 5,292
Change in fair value reported in Condensed Consolidated Statement of Comprehensive Loss (2,588) (4,670)
Ending Balance 91,912 $ 79,983
Remaining unpaid principal $ 75,000