v3.26.1
Property, Plant and Equipment (Details) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Property, Plant, and Equipment [Line Items]      
Document Period End Date Mar. 31, 2026    
Asset Retirement Obligation $ 15,300 $ 14,400 $ 13,700
Asset Retirement Obligation, Liabilities Incurred 1,000 600  
Asset Retirement Obligation, Liabilities Settled 0 (100)  
Asset Retirement Obligation, Accretion Expense 300 300  
Asset Retirement Obligation, Foreign Currency Translation Gain (Loss) (400) (100)  
Land [1] 112,300 106,100  
Buildings and Improvements, Gross 903,600 832,100  
Machinery and Equipment, Gross 1,434,300 1,205,400  
Capitalized Computer Software, Gross 316,300 282,100  
Materials, Supplies, and Other 829,900 749,800  
Construction in Progress, Gross [1] 509,500 512,100  
Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization 4,105,900 3,687,700  
Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization (1,944,600) (1,731,100)  
Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization 2,161,200 1,956,500  
Depreciation $ 218,300 $ 199,700 $ 181,700
[1] Land is not depreciated. Construction in progress is not depreciated until placed in service.