v3.26.1
Leases (Details) - USD ($)
$ in Millions
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Lease Assets and Liabilities [Abstract]      
Operating lease ROU assets $ 138.9 $ 97.2  
Operating lease ROU assets, Statement of Financial Position [Extensible List] Other Assets, Noncurrent Other Assets, Noncurrent  
Finance lease ROU assets [1] $ 6.6 $ 6.9  
Finance lease ROU assets, Statement of Financial Position [Extensible List] [1] Property, Plant and Equipment, Net Property, Plant and Equipment, Net  
Operating lease liabilities, current $ 26.3 $ 18.0  
Operating lease liabilities, current, Statement of Financial Position [Extensible List] Other Liabilities, Current Other Liabilities, Current  
Operating lease liabilities, noncurrent $ 117.5 $ 80.6  
Operating lease liabilities, noncurrent, Statement of Financial Position [Extensible List] Other Liabilities, Noncurrent Other Liabilities, Noncurrent  
Finance lease liabilities, current $ 0.5 $ 0.5  
Finance lease liabilities, current, Statement of Financial Position [Extensible List] Long-Term Debt and Lease Obligation, Current Long-Term Debt and Lease Obligation, Current  
Finance lease liabilities, noncurrent $ 1.8 $ 2.2  
Finance lease liabilities, noncurrent, Statement of Financial Position [Extensible List] Long-Term Debt and Lease Obligation Long-Term Debt and Lease Obligation  
Accumulated amortization $ 4.8 $ 4.2  
Components of Lease Expense [Abstract]      
Operating lease expense [2] 46.5 31.9 $ 24.2
Finance lease expense: Depreciation of ROU assets 0.6 0.6 0.5
Finance lease expense: Interest on lease liabilities 0.1 0.1 0.1
Total lease expense 47.2 32.6 24.8
Short-term lease expense 12.0 7.3 5.4
Supplemental Cash Flow Information [Abstract]      
Operating cash flows for operating leases 27.6 22.4 16.9
Financing cash flows for finance leases 0.7 0.6 0.5
ROU assets obtained in exchange for operating lease liabilities $ 54.2 42.2 $ 29.2
ROU assets obtained in exchange for finance lease liabilities   $ 0.9  
Lease Term and Discount Rates [Abstract]      
Weighted-average remaining lease term: Operating leases 6 years 3 months 18 days 6 years 7 months 6 days  
Weighted-average remaining lease term: Finance leases 5 years 8 months 12 days 6 years 3 months 18 days  
Weighted-average discount rate: Operating leases 5.60% 5.40%  
Weighted-average discount rate: Finance leases 4.80% 4.80%  
Maturity of Operating Lease Liabilities [Abstract]      
Fiscal 2027 $ 33.6    
Fiscal 2028 31.4    
Fiscal 2029 23.2    
Fiscal 2030 23.4    
Fiscal 2031 18.8    
Fiscal 2032 and beyond 41.2    
Total lease payments 171.6    
Less: Interest (27.8)    
Present value of lease liabilities 143.8    
Maturities of Finance Lease Liabilities [Abstract]      
Fiscal 2027 0.6    
Fiscal 2028 0.6    
Fiscal 2029 0.6    
Fiscal 2030 0.1    
Fiscal 2031 0.1    
Fiscal 2032 and beyond 0.6    
Total lease payments 2.6    
Less: interest (0.3)    
Present value of lease liabilities $ 2.3    
Minimum      
Leases [Abstract]      
Remaining lease term 1 year    
Maximum      
Leases [Abstract]      
Remaining lease term 10 years    
[1] Finance lease ROU assets were recorded net of accumulated amortization of $4.8 million and $4.2 million as of March 31, 2026 and 2025, respectively.
[2] During fiscal 2026, 2025 and 2024, operating lease expense included short-term lease expense of $12.0 million, $7.3 million, and $5.4 million, respectively. Variable lease expense was not significant.