Quarterly report pursuant to Section 13 or 15(d)

Debt - Interest Expense (Details)

v3.21.2
Debt - Interest Expense (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Oct. 31, 2021
Oct. 31, 2020
Oct. 31, 2021
Oct. 31, 2020
Debt Disclosure [Abstract]        
Interest expense at coupon rate $ 0 $ 1,930 $ 3,182 $ 3,411
Amortization of debt discounts and issuance costs 0 47 84 83
Total interest expense $ 0 $ 1,977 $ 3,266 $ 3,494