v3.25.4
Commitments and contingencies - Other information (Details) - USD ($)
$ in Thousands
 9 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Mar. 31, 2025
Leases      
Right-of-use operating lease asset $ 3,498   $ 3,998
Right-of-use finance lease asset 32,987   34,808
Total lease assets 36,485   38,806
Operating lease liabilities, current 1,213   1,184
Finance lease liabilities, current 2,862   2,799
Operating lease liabilities, non-current 2,514   3,076
Financing lease liabilities, non-current 22,129   22,729
Total lease liabilities 28,718   $ 29,788
Cash paid for amounts included in the measurement of lease liabilities:      
Operating cash flows from operating leases 900 $ 876  
Operating cash flows from finance leases 1,553 1,594  
Financing cash flows from finance leases 538 436  
Right-of-use asset obtained in exchange for new operating lease liabilities $ 0 $ 0  
Weighted-average remaining lease term - operating leases 4 years 4 years 10 months 24 days  
Weighted-average remaining lease term - financing leases 13 years 7 months 6 days 14 years 7 months 6 days  
Weighted-average discount rate - operating leases 10.40% 10.30%  
Weighted-average discount rate - financing leases 8.30% 8.30%