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Other Financial Statement Details - Property, Plant and Equipment (Details) - USD ($)
$ in Millions
3 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Mar. 31, 2025
Property, Plant and Equipment [Line Items]      
Total property, plant and equipment, gross $ 3,528.8   $ 3,526.1
Less: accumulated depreciation and amortization 2,374.9   2,342.4
Total property, plant and equipment, net 1,153.9   1,183.7
Depreciation expense 39.5 $ 43.0  
Land      
Property, Plant and Equipment [Line Items]      
Total property, plant and equipment, gross 84.8   84.8
Building and building improvements      
Property, Plant and Equipment [Line Items]      
Total property, plant and equipment, gross 702.5   705.9
Machinery and equipment      
Property, Plant and Equipment [Line Items]      
Total property, plant and equipment, gross 2,313.1   2,311.3
Projects in process      
Property, Plant and Equipment [Line Items]      
Total property, plant and equipment, gross $ 428.4   $ 424.1