v3.26.1
Debt and Financing Arrangements - Interest Expense (Details) - Convertible Senior Notes - USD ($)
$ in Thousands
3 Months Ended
Apr. 30, 2026
Apr. 30, 2025
Debt Instrument [Line Items]    
Contractual interest expense $ 1,512 $ 1,687
Amortization of debt issuance costs 595 677
Total interest expense related to the 2025 Notes and the 2028 Notes $ 2,107 $ 2,364