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Other Income (Expense) - Net - Computation of Other Income (Expense) - Net (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 28, 2019 | Dec. 29, 2018 | Dec. 30, 2017
Other Income and Expenses [Abstract] |  |  |
Interest income | $ 1.5 | $ 0.6 | $ 0.3
Net foreign exchange loss | (3.6) | (3.9) | (7.0)
Net periodic pension and postretirement benefits (costs) - non-service | 10.4 | 3.7 | (0.6)
Settlement of treasury lock | 0.0 | 13.3 | 0.0
Loss on early extinguishment of debt | 0.0 | (7.8) | 0.0
Other | 0.5 | (1.7) | (0.5)
Total other income (expense) – net | $ 8.8 | $ 4.2 | $ (7.8)

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