v3.26.1
Goodwill and Identifiable Assets (Acquired Intangible Assets) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Intangible assets subject to amortization:          
Other Finite-Lived Intangible Assets, Gross $ 646.8   $ 646.8   $ 473.2
Accumulated Amortization 356.4   356.4   324.6
Net Carrying Amount 290.4   290.4   148.6
Intangible assets not subject to amortization:          
Trademarks, Carrying Amount 305.2   305.2   305.2
Intangible Asset, Excluding Goodwill, before Accumulated Amortization 952.0   952.0   778.4
Identifiable intangible assets, net 595.6   595.6   453.8
Income before income taxes $ 20.7 $ 41.4 $ 31.3 $ 72.6  
Customer and Contractual Relationships          
Intangible Assets [Line Items]          
Acquired Finite-Lived Intangible Assets, Useful Life 13 years   13 years    
Intangible assets subject to amortization:          
Other Finite-Lived Intangible Assets, Gross $ 621.0   $ 621.0   447.4
Accumulated Amortization 334.8   334.8   305.2
Net Carrying Amount $ 286.2   $ 286.2   142.2
Customer and Contractual Relationships | Minimum          
Intangible Assets [Line Items]          
Acquired Finite-Lived Intangible Assets, Useful Life 6 years   6 years    
Customer and Contractual Relationships | Maximum          
Intangible Assets [Line Items]          
Acquired Finite-Lived Intangible Assets, Useful Life 13 years   13 years    
Noncompete Agreements          
Intangible assets subject to amortization:          
Other Finite-Lived Intangible Assets, Gross $ 21.4   $ 21.4   21.4
Accumulated Amortization 19.6   19.6   18.2
Net Carrying Amount $ 1.8   $ 1.8   3.2
Noncompete Agreements | Minimum          
Intangible Assets [Line Items]          
Acquired Finite-Lived Intangible Assets, Useful Life 3 years   3 years    
Noncompete Agreements | Maximum          
Intangible Assets [Line Items]          
Acquired Finite-Lived Intangible Assets, Useful Life 7 years   7 years    
Software, Internally Developed          
Intangible Assets [Line Items]          
Acquired Finite-Lived Intangible Assets, Useful Life 3 years   3 years    
Intangible assets subject to amortization:          
Other Finite-Lived Intangible Assets, Gross $ 4.4   $ 4.4   4.4
Accumulated Amortization 2.0   2.0   1.2
Net Carrying Amount $ 2.4   $ 2.4   $ 3.2