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Fair Value Measures - Additional Information (Detail) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 28, 2020 | Dec. 30, 2019 | Dec. 31, 2018 | Jan. 01, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash and cash equivalents | $ 451,565,000 | $ 379,818,000 |  |
Goodwill | 637,324,000 | 706,524,000 | $ 698,778,000 |
Goodwill impairment charge | $ 69,200,000 |  |  |
Discount rate to expected future cash flows | 19.00% |  |  |
Impairment of long-lived assets | $ 0 | 0 | 0 |
RF&S Components |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Goodwill | 108,000,000 | 177,200,000 | 177,200,000 |
Goodwill impairment charge | 69,200,000 |  |  |
Domestic Subsidiaries |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash and cash equivalents | 230,166,000 |  |  |
Foreign Subsidiaries |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash and cash equivalents | 221,399,000 |  |  |
Defined Benefit Plan |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Fair value of plan assets | 23,484,000 | 21,287,000 | $ 18,251,000 | $ 19,643,000
Defined Benefit Plan | Level 1 Inputs |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Fair value of plan assets | $ 23,484,000 | $ 21,287,000 |  |

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