v3.26.1
Leases (Tables)
 12 Months Ended
Mar. 31, 2026
Leases [Abstract]  
Schedule of ROU Assets and Lease Liabilities
The following table represents the Company’s ROU assets and lease liabilities:
March 31
(Millions of US dollars)20262025
Assets:
Operating leases, net$133.4 $70.4 
Finance leases, net100.8 2.7 
Total right-of-use assets$234.2 $73.1 
Liabilities:
Operating leases:
Current$32.9 $21.6 
Non-Current114.3 63.9 
Total operating lease liabilities$147.2 $85.5 
Finance leases:
Current$5.6 $1.1 
Non-Current97.9 1.9 
Total finance lease liabilities$103.5 $3.0 
Total lease liabilities$250.7 $88.5 
Schedule of Lease Expense
The following table represents the Company’s lease expense:
Years Ended March 31
(Millions of US dollars)202620252024
Operating leases$34.7 $25.1 $22.3 
Short-term leases7.1 6.6 4.6 
Finance leases7.0 1.2 1.1 
Interest on lease liabilities4.4 0.2 0.2 
Total lease expense$53.2 $33.1 $28.2 
Supplemental cash flow and other information related to leases were as follows:
Years Ended March 31
(Millions of US dollars)20262025
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows used for operating leases$37.2 $27.4 
Operating cash flows used for finance leases3.7 0.2 
Financing cash flows used for finance leases4.8 1.2 
Non-cash ROU assets obtained in exchange for new lease liabilities65.0 34.3 
Non-cash remeasurements decreasing ROU assets and lease liabilities(6.5)(0.7)
Schedule of Lease Expense
The weighted-average remaining lease term of the Company’s leases is as follows:
March 31
(In Years)20262025
Operating leases7.06.3
Finance leases20.33.2

The weighted-average discount rate of the Company’s leases is as follows:
March 31
20262025
Operating leases6.5 %5.8 %
Finance leases6.0 %6.2 %
Schedule of Operating Lease, Future Lease Payments For Non-Cancellable Lease
The following are future lease payments for non-cancellable leases at March 31, 2026:
Years ended March 31 (Millions of US dollars):
Operating
Leases		Finance
Leases		Total
Fiscal 2027
$40.4 $11.2 $51.6 
Fiscal 2028
35.2 9.9 45.1 
Fiscal 2029
25.9 8.4 34.3 
Fiscal 2030
16.6 8.0 24.6 
Fiscal 2031
12.0 7.7 19.7 
Thereafter56.7 145.4 202.1 
Total$186.8 $190.6 $377.4 
Less: imputed interest126.7 
Total lease liabilities$250.7 
Schedule of Finance Lease, Future Lease Payments For Non-Cancellable Lease
The following are future lease payments for non-cancellable leases at March 31, 2026:
Years ended March 31 (Millions of US dollars):
Operating
Leases		Finance
Leases		Total
Fiscal 2027
$40.4 $11.2 $51.6 
Fiscal 2028
35.2 9.9 45.1 
Fiscal 2029
25.9 8.4 34.3 
Fiscal 2030
16.6 8.0 24.6 
Fiscal 2031
12.0 7.7 19.7 
Thereafter56.7 145.4 202.1 
Total$186.8 $190.6 $377.4 
Less: imputed interest126.7 
Total lease liabilities$250.7