v3.26.1
Property, Plant and Equipment
12 Months Ended
Mar. 31, 2026
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment Property, Plant and Equipment
Property, plant and equipment consist of the following components:
 March 31
(Millions of US dollars)20262025
Land$121.7 $94.7 
Buildings995.2 747.0 
Machinery and equipment3,203.3 2,316.2 
Construction in progress555.1 532.0 
Property, plant and equipment, at cost4,875.3 3,689.9 
Less accumulated depreciation(1,790.7)(1,520.9)
Property, plant and equipment, net$3,084.6 $2,169.0 
Depreciation expense for the fiscal years ended March 31, 2026, 2025 and 2024 was $302.4 million, $211.3 million and $178.7 million, respectively.