v3.24.2
Income taxes (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 29, 2024
Jul. 01, 2023
Jun. 29, 2024
Jul. 01, 2023
Operating Loss Carryforwards        
Income tax expense $ 12.3 $ 9.6 $ 46.8 $ 24.9
Income from continuing operations before taxes $ 90.2 $ 80.9 $ 170.9 $ 127.1
Reported effective income tax rate (as a percent) 13.60% 11.90% 27.40% 19.60%
Discrete tax (benefit) expense $ (12.2) $ (6.4)    
Unrecognized tax benefits 1.6 1.8 $ 1.6 $ 1.8
U.K.        
Operating Loss Carryforwards        
Effective income tax rate reconciliation, tax credit, foreign, amount 13.8 $ 4.3    
Mexico and Poland        
Operating Loss Carryforwards        
Discrete tax (benefit) expense 4.1      
Deferred tax asset, net 6.8   6.8  
Net deferred income tax assets 2.7   2.7  
GERMANY        
Operating Loss Carryforwards        
Discrete tax (benefit) expense 2.5      
Deferred tax asset, net 3.7   3.7  
Net deferred income tax assets $ 1.2   $ 1.2