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Restructuring and impairment charges - Charges recognized (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 26, 2022 | Jun. 27, 2021 | Jun. 26, 2022 | Jun. 27, 2021
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | $ (83) | $ 4,755 | $ 825 | $ 12,753
Asset impairment charges |  | 6,739 | 1,497 | 6,739
Restructuring and impairment charges | (83) | 11,494 | 2,322 | 19,492
Termination benefits |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | (524) | 3,823 | 202 | 11,025
Asset impairment charges |  | 0 | 0 | 0
Restructuring and impairment charges |  | 3,823 | 202 | 11,025
Other Restructuring costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 441 | 932 | 623 | 1,728
Asset impairment charges |  | 6,739 | 1,497 | 6,739
Restructuring and impairment charges |  | 7,671 | 2,120 | 8,467
Respiratory divestiture plan |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 160 | 2,541 | 280 | 2,541
Respiratory divestiture plan | Termination benefits |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 129 | 2,540 | 235 | 2,540
Respiratory divestiture plan | Other Restructuring costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 31 | 1 | 45 | 1
2021 Restructuring plan |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  | 152 |  | 6,912
2021 Restructuring plan | Termination benefits |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  | 129 |  | 6,889
2021 Restructuring plan | Other Restructuring costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  | 23 |  | 23
2019 Footprint realignment plan |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | (379) | (210) | (1,025) | 236
2019 Footprint realignment plan | Termination benefits |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | (400) | (301) | (1,070) | 40
2019 Footprint realignment plan | Other Restructuring costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 21 | 91 | 45 | 196
2018 Footprint realignment plan |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 386 | 1,551 | 606 | 1,863
2018 Footprint realignment plan | Termination benefits |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 153 | 1,459 | 311 | 1,726
2018 Footprint realignment plan | Other Restructuring costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 233 | 92 | 295 | 137
Other restructuring programs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | (250) | 721 | 964 | 1,201
Other restructuring programs | Termination benefits |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | (406) | (4) | 726 | (170)
Other restructuring programs | Other Restructuring costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | $ 156 | $ 725 | $ 238 | $ 1,371

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- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=126905981&loc=d3e2420-110228 + Details
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