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Pension Plans - Narrative (Detail) - USD ($)
$ in Millions
 12 Months Ended
Jan. 02, 2021
Dec. 28, 2019
Dec. 29, 2018
Defined Benefit Plan Disclosure [Line Items]      
Normal retirement age 65 years    
Accumulated benefit obligation $ 1,621.5 $ 1,478.0  
Expense recognized related to 401(k)plan $ 10.3 $ 9.8 $ 9.4
Minimum      
Defined Benefit Plan Disclosure [Line Items]      
Time horizon for asset under risk and correlation assumption (in years) 10 years    
Maximum      
Defined Benefit Plan Disclosure [Line Items]      
Time horizon for asset under risk and correlation assumption (in years) 20 years    
United States      
Defined Benefit Plan Disclosure [Line Items]      
Weighted-average discount rate 2.70%    
Increase in pension expense $ 4.5    
Increase in projected benefit obligation $ 82.4    
Percentage of projected benefit obligations 82.00%    
Foreign Pension Plans      
Defined Benefit Plan Disclosure [Line Items]      
Weighted-average discount rate 1.70%    
Increase in pension expense $ 1.9    
Increase in projected benefit obligation $ 32.3    
Pension Plan      
Defined Benefit Plan Disclosure [Line Items]      
Expected long-term rate of return on plan assets 7.00% 7.10% 7.10%
Pension Plan | United States      
Defined Benefit Plan Disclosure [Line Items]      
Expected future employer contributions $ 2.2    
Expected long-term rate of return on plan assets 6.75%    
Pension plans' assets as percentage of worldwide pension assets 86.00%    
Pension Plan | Foreign Pension Plans      
Defined Benefit Plan Disclosure [Line Items]      
Expected future employer contributions $ 9.2    
Pension Plan | Foreign Pension Plans | Minimum      
Defined Benefit Plan Disclosure [Line Items]      
Expected long-term rate of return on plan assets 1.00%    
Pension Plan | Foreign Pension Plans | Maximum      
Defined Benefit Plan Disclosure [Line Items]      
Expected long-term rate of return on plan assets 5.40%