Pension Plans - Summary of Benefit Obligations in Excess of Fair Value of Plan Assets (Detail) - Pension Plan - USD ($) $ in Millions	Jan. 01, 2022	Jan. 02, 2021
Pension plans with accumulated benefit obligations in excess of plan assets:
Accumulated benefit obligation	$ 127.8	$ 266.3
Fair value of plan assets	25.1	152.6
Pension plans with projected benefit obligations in excess of plans assets:
Projected benefit obligation	280.4	284.4
Fair value of plan assets	$ 163.5	$ 152.6

Amount of plan asset for defined benefit pension plan with projected benefit obligation in excess of plan assets.

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- Definition

Amount of projected benefit obligation for defined benefit pension plan with projected benefit obligation in excess of plan assets.

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- Definition

Amount of accumulated benefit obligation for defined benefit plan with accumulated benefit obligation in excess of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
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-Section 50
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Amount of plan asset for defined benefit plan with accumulated benefit obligation in excess of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (b)
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