XML 47 R37.htm IDEA: XBRL DOCUMENT v3.25.2
Goodwill and Other Intangible Assets - Intangible Assets and Amortization Expense (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Finite-Lived Intangible Assets          
Gross carrying amount $ 160.8   $ 160.8   $ 160.8
Accumulated amortization 43.5   43.5   35.4
Intangible assets, net 149.3   149.3   157.4
Amortization expense 4.1 $ 4.2 8.1 $ 8.6  
2023 8.1   8.1    
2024 16.0   16.0    
2025 16.0   16.0    
2026 15.2   15.2    
2027 12.8   12.8    
Finite-Lived Intangible Asset, Expected Amortization, after Year Five 49.2   49.2    
Finite-Lived Intangible Assets, Net 117.3   117.3    
Proceeds from Sale of Other Assets     0.0 $ 7.2  
Payments for Commissions     1.8    
Trademarks          
Finite-Lived Intangible Assets          
Unamortized intangible assets, gross carrying amount 32.0   32.0   32.0
Trademarks          
Finite-Lived Intangible Assets          
Gross carrying amount 15.2   15.2   15.2
Accumulated amortization 2.3   2.3   1.7
Customer relationships          
Finite-Lived Intangible Assets          
Gross carrying amount 118.5   118.5   118.5
Accumulated amortization 33.4   33.4   27.3
Unpatented Technology [Member]          
Finite-Lived Intangible Assets          
Gross carrying amount 26.3   26.3   26.3
Accumulated amortization 7.4   7.4   6.0
Other          
Finite-Lived Intangible Assets          
Gross carrying amount 0.8   0.8   0.8
Accumulated amortization $ 0.4   $ 0.4   $ 0.4