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Retirement Plans - Additional Information (Detail) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 27, 2020 USD ($) | Sep. 27, 2020 USD ($) Participant
United States Plans |  |
Defined Benefit Plan Disclosure |  |
Contribution to defined benefit pension plans |  | $ 2.2
United States Plans | Annuity Plan For Participants In The US Qualified Pension Plan [Member] |  |
Defined Benefit Plan Disclosure |  |
Number of employees involved in the annutiy plan | Participant |  | 115
Increase decrease in accrued pension benefit obligations |  | $ 24.4
Increase decrease in pension assets |  | 24.4
Pension benefit obligation acturial gain loss | $ 2.2 | 2.2
Defined benefit obligation increase decrease for remeasurement due to settlement | $ 0.5 | 0.5
U.S. Supplemental Executive Defined Benefit Pension Plan |  |
Defined Benefit Plan Disclosure |  |
Contribution to defined benefit pension plans |  | $ 0.7

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