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Revenue Recognition - Schedule of Estimated Amount of Deferred Revenue and Customer Advances (Detail) - USD ($) $ in Thousands | Sep. 26, 2020 | Dec. 31, 2019
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Revenue Recognition [Line Items] |  |
Deferred revenue and customer advances expected to be recognized | $ 211,348 | $ 176,360
Deferred revenue and customer advances expected to be recognized | 249,923 |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01 |  |
Revenue Recognition [Line Items] |  |
Deferred revenue and customer advances expected to be recognized | $ 22,452 |
Deferred revenue and customer advances recognition period | 1 year |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01 |  |
Revenue Recognition [Line Items] |  |
Deferred revenue and customer advances expected to be recognized | $ 16,123 |
Deferred revenue and customer advances recognition period | 2 years |

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