Stock-Based Compensation Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
Dec. 28, 2024	Dec. 30, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 19.1	$ 15.2	$ 33.4
Income tax benefits for grants	$ 3.7	2.9	$ 6.5
Maximum expiry period of options granted from the grant date	10 years
Vesting period of options granted	3 years
Lapsing period of restrictions related to restricted stock issued	three-year
Weighted-average fair values for options granted			$ 8.46
Total pretax intrinsic value of options exercised	$ 0.9	$ 0.0	$ 0.4
Closing stock price	$ 22.48	$ 8.89
Stock options exercisable and in-the-money, number	750,351
Available For Issuance [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock incentive units	5,043,053
Option Or Stock Appreciation Right [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock incentive units	1.0
Non-Stock Option Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock incentive units	1.0
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to nonvested shares and stock option grants			$ 0.1
Weighted-average period of recognition			10 months 24 days
Restricted Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to nonvested shares and stock option grants	$ 17.0	$ 19.0	$ 19.4
Weighted-average period of recognition	1 year 2 months 12 days	1 year 6 months	1 year 7 months 6 days
Total fair value of shares vested	$ 8.5	$ 11.1	$ 10.9
Performance Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to nonvested shares and stock option grants	$ 8.2	$ 5.0	$ 10.8
Weighted-average period of recognition	1 year 8 months 12 days	1 year 8 months 12 days	1 year 7 months 6 days
Total fair value of shares vested	$ 0.5	$ 5.7	$ 9.3

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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