Pension Plans - Summary of Benefit Obligations in Excess of Fair Value of Plan Assets (Detail) - Pension Plan - USD ($) $ in Millions	Dec. 31, 2022	Jan. 01, 2022
Pension plans with accumulated benefit obligations in excess of plan assets:
Accumulated benefit obligation	$ 94.9	$ 127.8
Fair value of plan assets	15.1	25.1
Pension plans with projected benefit obligations in excess of plans assets:
Projected benefit obligation	98.6	280.4
Fair value of plan assets	$ 15.1	$ 163.5

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.

+ References

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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
-SubTopic 20
-Section 50
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-Publisher FASB
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- Definition

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)
-URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e2417-114920

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