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Retirement Plans - Additional Information (Detail) $ in Millions	12 Months Ended
	Jan. 02, 2021 USD ($)	Dec. 28, 2019 USD ($)	Dec. 29, 2018 USD ($)
Schedule Of Other Postretirement Benefits [Line Items]
Cash surrender value of life insurance	$ 44.0	$ 66.8
Defined contribution plan cost recognized	4.2	5.2	$ 4.5
Defined contribution plan at foreign subsidiary	1.3	1.1	1.1
Deferred recognized compensation liability	1.0	0.9
Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), Gain (Loss), before Tax	92.8	61.4
Accumulated Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), after Tax	(73.5)	(48.7)
Accumulated benefit obligations for all defined benefit pension plans and the SERP	430.2	378.4
Actuarial loss included in accumulated other comprehensive income (loss)	$ 13.8
Amortization of Unrecognized net actuarial losses exceeding certain corridors period	5 years
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Settlement			(66.6)
Settlement loss	$ 0.0	0.0	$ 7.2
Equity securities [Member]
Schedule Of Other Postretirement Benefits [Line Items]
Target investment allocation	57.00%
Fixed income securities [Member]
Schedule Of Other Postretirement Benefits [Line Items]
Target investment allocation	38.00%
Real Estate Investment [Member]
Schedule Of Other Postretirement Benefits [Line Items]
Target investment allocation	5.00%
Pension [Member]
Schedule Of Other Postretirement Benefits [Line Items]
Number Of Retirement Plans	2
Defined Contribution Plan [Member]
Schedule Of Other Postretirement Benefits [Line Items]
Number Of Retirement Plans	2
SERP [Member]
Schedule Of Other Postretirement Benefits [Line Items]
Cash surrender value of life insurance	$ 36.6	$ 59.6
Expected contributions to defined benefit plans	$ 3.8

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Carrying amount as of the balance sheet date of amounts which could be received based on the terms of the insurance contract upon surrendering life policies owned by the entity.

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Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

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Number of retirement plans sponsored by the Company.

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