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Restructuring and impairment charges - Charges recognized (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 29, 2024 | Oct. 01, 2023 | Sep. 29, 2024 | Oct. 01, 2023
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | $ 285 | $ 231 | $ 8,689 | $ 3,960
Asset impairment charges |  |  | 2,110 | 0
Restructuring and impairment charges |  |  | 10,799 |
Termination Benefits |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 254 | 77 | 8,543 | 3,208
Asset impairment charges |  |  | 0 |
Restructuring and impairment charges |  |  | 8,543 |
Other costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 31 | 154 | 146 | 752
Asset impairment charges |  |  | 2,110 |
Restructuring and impairment charges |  |  | 2,256 |
2024 Footprint realignment plan |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 1,093 |  | 9,665 |
2024 Footprint realignment plan | Termination Benefits |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 1,066 |  | 9,638 |
2024 Footprint realignment plan | Other costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 27 |  | 27 |
2023 Restructuring plan |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | (95) | 1,296 | (832) | 1,296
2023 Restructuring plan | Termination Benefits |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | (95) | 1,296 | (914) | 1,296
2023 Restructuring plan | Other costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 0 | 0 | 82 | 0
2023 Footprint realignment plan |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 301 |  | 1,047 |
2023 Footprint realignment plan | Termination Benefits |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 301 |  | 1,044 |
2023 Footprint realignment plan | Other costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 0 |  | 3 |
Other restructuring programs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | (1,014) | (565) | (1,191) | (431)
Other restructuring programs | Termination Benefits |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | (1,018) | (612) | (1,225) | (853)
Other restructuring programs | Other costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | $ 4 | 47 | $ 34 | 422
2022 Restructuring plan |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  | 346 |  | 3,674
2022 Restructuring plan | Termination Benefits |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  | 244 |  | 3,361
2022 Restructuring plan | Other costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  | 102 |  | 313
Respiratory divestiture plan |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  | (846) |  | (579)
Respiratory divestiture plan | Termination Benefits |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  | (851) |  | (596)
Respiratory divestiture plan | Other costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  | $ 5 |  | $ 17

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