v3.26.1
Fair Value Measurements - Schedule of Recurring Fair Value Measurements (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Assets    
Cash equivalents - money market funds $ 1.1 $ 1.1
Deferred compensation plan assets 30.0 29.6
Equity securities 32.0 35.2
Total 72.4 66.9
Liabilities    
Deferred compensation plan liabilities 20.3 21.5
Earn-out liabilities 8.5 9.6
Total 29.6 34.2
Level 1    
Assets    
Cash equivalents - money market funds 1.1 1.1
Deferred compensation plan assets 30.0 29.6
Equity securities 32.0 35.2
Total 63.1 65.9
Liabilities    
Deferred compensation plan liabilities 20.3 21.5
Earn-out liabilities 0.0 0.0
Total 20.3 21.5
Level 2    
Assets    
Cash equivalents - money market funds 0.0 0.0
Deferred compensation plan assets 0.0 0.0
Equity securities 0.0 0.0
Total 9.3 1.0
Liabilities    
Deferred compensation plan liabilities 0.0 0.0
Earn-out liabilities 0.0 0.0
Total 0.8 3.1
Level 3    
Assets    
Cash equivalents - money market funds 0.0 0.0
Deferred compensation plan assets 0.0 0.0
Equity securities 0.0 0.0
Total 0.0 0.0
Liabilities    
Deferred compensation plan liabilities 0.0 0.0
Earn-out liabilities 8.5 9.6
Total 8.5 9.6
Interest rate swap agreements    
Assets    
Derivative asset 8.5  
Liabilities    
Derivative liability   1.8
Interest rate swap agreements | Level 1    
Assets    
Derivative asset 0.0  
Liabilities    
Derivative liability   0.0
Interest rate swap agreements | Level 2    
Assets    
Derivative asset 8.5  
Liabilities    
Derivative liability   1.8
Interest rate swap agreements | Level 3    
Assets    
Derivative asset 0.0  
Liabilities    
Derivative liability   0.0
Foreign currency forward contracts    
Assets    
Derivative asset 0.8 1.0
Liabilities    
Derivative liability 0.8 1.3
Foreign currency forward contracts | Level 1    
Assets    
Derivative asset 0.0 0.0
Liabilities    
Derivative liability 0.0 0.0
Foreign currency forward contracts | Level 2    
Assets    
Derivative asset 0.8 1.0
Liabilities    
Derivative liability 0.8 1.3
Foreign currency forward contracts | Level 3    
Assets    
Derivative asset 0.0 0.0
Liabilities    
Derivative liability $ 0.0 $ 0.0