Retirement Plans - Summary of Net Pension and SERP Expense Recognized (Detail) - USD ($) $ in Millions	12 Months Ended
	Jan. 01, 2022	Jan. 02, 2021	Dec. 28, 2019
Defined Benefit Plan Disclosure [Line Items]
Service cost pertaining to benefits earned during the year	$ 6.9	$ 6.4	$ 5.5
Interest cost on projected benefit obligations	12.8	14.2	15.2
Expected return on pension assets	(19.5)	(18.7)	(17.7)
Net amortization loss	13.8	6.6	2.6
Net pension expense	14.0	8.5	5.6
Pension [Member]
Defined Benefit Plan Disclosure [Line Items]
Net pension expense	8.3	3.3	0.2
SERP [Member]
Defined Benefit Plan Disclosure [Line Items]
Net pension expense	$ 5.7	$ 5.2	$ 5.4