v3.26.1
Goodwill and Intangibles Goodwill (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jul. 04, 2026
Jun. 28, 2025
Jul. 04, 2026
Jun. 28, 2025
Dec. 31, 2025
Dec. 31, 2024
Goodwill [Roll Forward]            
Acquisitions     $ 18.6      
Goodwill, Impaired, Accumulated Impairment Loss $ 0.0 $ 0.0 0.0 $ 0.0 $ 0.0  
Goodwill, Other Increase (Decrease)     (5.4) 20.0    
Goodwill 694.4 986.1 694.4 986.1 681.2 $ 966.1
Amortization Expense for Intangibles 19.3 20.1 38.8 39.3    
Propulsion [Member]            
Goodwill [Roll Forward]            
Acquisitions     0.0      
Goodwill, Other Increase (Decrease)     0.0 3.0    
Goodwill 54.0 53.8 54.0 53.8 54.0 50.8
Boat [Member]            
Goodwill [Roll Forward]            
Acquisitions     18.6      
Goodwill, Other Increase (Decrease)     (2.7) 0.5    
Goodwill 186.3 169.8 186.3 169.8 170.4 169.3
Navico Group            
Goodwill [Roll Forward]            
Acquisitions     0.0      
Goodwill, Impaired, Accumulated Impairment Loss 385.8   385.8   80.0  
Goodwill, Other Increase (Decrease)     (2.7) 15.8    
Goodwill 220.9 529.2 220.9 529.2 223.6 513.4
Engine Parts and Accessories [Member]            
Goodwill [Roll Forward]            
Acquisitions     0.0      
Goodwill, Other Increase (Decrease)     0.0 0.7    
Goodwill $ 233.2 $ 233.3 $ 233.2 $ 233.3 $ 233.2 $ 232.6
Customer Relationships [Member]            
Goodwill [Roll Forward]            
Finite-Lived Intangible Asset, Weighted Average Remaining Useful Life     13 years 3 months 18 days      
Other Intangible Assets [Member]            
Goodwill [Roll Forward]            
Finite-Lived Intangible Asset, Weighted Average Remaining Useful Life     11 years 8 months 12 days