v3.26.1
Fair Value Measurements Fair Value Hierarchy (Details) - USD ($)
$ in Millions
 3 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Mar. 31, 2026
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Debt and Equity Securities, Gain (Loss) $ (0.2) $ (0.1)  
Level 1      
Assets:      
Cash and cash equivalents 482.3   $ 439.6
Forward and swap contracts 0.0   0.0
Equity Securities, FV-NI 2.7   3.2
Investments 1.5   1.3
Liabilities:      
Foreign Currency Contracts, Liability, Fair Value Disclosure 0.0   0.0
Deferred compensation plans 1.7   1.5
Long term debt 0.0   0.0
Contingent consideration obligations 0.0   0.0
Level 2      
Assets:      
Cash and cash equivalents 0.0   0.0
Forward and swap contracts 1.3   0.2
Equity Securities, FV-NI 0.0   0.0
Investments 0.0   0.0
Liabilities:      
Foreign Currency Contracts, Liability, Fair Value Disclosure 0.7   0.7
Deferred compensation plans 0.0   0.0
Long term debt 1,635.9   1,666.4
Contingent consideration obligations 0.0   0.0
Level 3      
Assets:      
Cash and cash equivalents 0.0   0.0
Forward and swap contracts 0.0   0.0
Equity Securities, FV-NI 0.0   0.0
Investments 0.0   0.0
Liabilities:      
Foreign Currency Contracts, Liability, Fair Value Disclosure 0.0   0.0
Deferred compensation plans 0.0   0.0
Long term debt 0.0   0.0
Contingent consideration obligations 8.6   6.1
Reported Value Measurement [Member]      
Assets:      
Cash and cash equivalents 482.3   439.6
Forward and swap contracts 1.3   0.2
Equity Securities, FV-NI 2.7   3.2
Investments 1.5   1.3
Liabilities:      
Foreign Currency Contracts, Liability, Fair Value Disclosure 0.7   0.7
Deferred compensation plans 1.7   1.5
Long term debt 1,893.7   1,931.7
Contingent consideration obligations $ 8.6   $ 6.1