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OTHER (GAINS) AND LOSSES
 12 Months Ended
Mar. 31, 2025
Analysis of income and expense [abstract]  
OTHER (GAINS) AND LOSSES OTHER (GAINS) AND LOSSES
20252024
Impairment of technology and other non-financial assets $— $35.7 
Net gain on foreign currency exchange differences(1.4)(2.4)
Remeasurement of royalty obligations(2.9)(6.1)
Settlement gain on annuity purchase transaction (Note 22)
— (5.2)
Gain on disposal of property, plant and equipment(6.4)— 
Other(2.6)5.9 
Other (gains) and losses$(13.3)$27.9 

Impairment of technology and other non-financial assets
During the fourth quarter of fiscal 2024, the Company considered the impact of general economic headwinds, the re-baselining of its Defense and Security business and the reduced pursuit of certain types of opportunities as part of its review of impairment indicators for non-financial assets. As a result of this review, the Company recorded impairment charges totaling $35.7 million in the Defense and Security segment, consisting of $31.4 million of internally developed intangible assets and $4.3 million of simulators included in property, plant and equipment.