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Restructuring, Impairment and Other Charges (Details) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Apr. 30, 2019 | Dec. 26, 2020 | Sep. 26, 2020 | Jun. 27, 2020 | Mar. 28, 2020 | Dec. 28, 2019 | Sep. 28, 2019 | Jun. 29, 2019 | Mar. 30, 2019 | Dec. 26, 2020 | Dec. 28, 2019 | Dec. 29, 2018
Restructuring Cost and Reserve |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  |  |  |  | $ 5,638 | $ 12,711 | $ 10,365
Impairment |  |  | $ 100 |  |  | $ 4,200 |  | $ 200 | $ 2,800 | 36,078 | 322 | 2,218
Total |  | $ 800 | 1,300 | $ 1,800 |  | 2,100 | $ 2,500 | 5,700 |  | 41,716 | 13,033 | 12,583
Acquisition related costs |  | 700 | $ 300 | 100 | $ 1,200 | 1,900 | $ 3,200 | $ 1,500 | $ 2,400 |  |  |
Restructuring reserves |  | $ 4,200 |  |  |  | $ 2,700 |  |  |  | 4,200 | 2,700 |
Employee terminations |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges | $ 1,700 |  |  |  |  |  |  |  |  | 5,453 | 10,359 | 9,503
Other restructuring charges |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges | $ 1,400 |  |  |  |  |  |  |  |  | 185 | 2,352 | 862
Electronics |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  |  |  |  | 2,540 | 5,501 | 9,412
Impairment |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Total |  |  |  |  |  |  |  |  |  | 2,540 | 5,501 | 9,412
Electronics | Employee terminations |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  |  |  |  | 2,540 | 5,313 | 8,742
Electronics | Other restructuring charges |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  |  |  |  | 0 | 188 | 670
Automotive |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  |  |  |  | 857 | 5,965 | 826
Impairment |  |  |  |  |  |  |  |  |  | 33,841 | 322 | 88
Total |  |  |  |  |  |  |  |  |  | 34,698 | 6,287 | 914
Automotive | Employee terminations |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  |  |  |  | 682 | 4,251 | 634
Automotive | Other restructuring charges |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  |  |  |  | 175 | 1,714 | 192
Industrial |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  |  |  |  | 2,241 | 1,245 | 127
Impairment |  |  |  | $ 2,200 |  |  |  |  |  | 2,237 | 0 | 2,130
Total |  |  |  |  |  |  |  |  |  | 4,478 | 1,245 | 2,257
Industrial | Employee terminations |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  |  |  |  | 2,231 | 795 | 127
Industrial | Other restructuring charges |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  |  |  |  | $ 10 | $ 450 | $ 0

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