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Customer Contracts (Tables)
3 Months Ended
Apr. 04, 2021
Revenue from Contract with Customer [Abstract]  
Schedule of Warranty Reserve
 Three Months
Warranty Reserve (in millions):20212020
Balance at beginning of year$22.4 $24.8 
Accruals for product warranties charged to expense and other 3.5 (0.1)
Cost of product warranty claims(3.3)(3.6)
Acquisition  0.1 
Balance at end of period$22.6 $21.2