v3.26.1
Derivative Instruments (Tables)
12 Months Ended
Mar. 31, 2026
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Schedule of Fair Value of Interest Rate Swap
The fair value of the swap and classification on the consolidated balance sheets is as follows:
Fair Value as of
(Millions of US dollars)Fair Value HierarchyBalance Sheet LocationMarch 31, 2026March 31, 2025
Interest rate swapLevel 2Other current liabilities$4.7 $—